Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units DN240115140 Issue 22 Approved on 2023-02-15 Single RAN BTS Site Solutions Rel. 23R2-SR Operating Documentation, Issue 01 © 2023 Nokia Condential Information. Use subject to agreed restrictions on disclosure and use. Nokia is committed to diversity and inclusion. We are continuously reviewing our customer documentation and consulting with standards bodies to ensure that terminology is inclusive and aligned with the industry. Our future customer documentation will be updated accordingly. This document includes Nokia proprietary and condential information, which may not be distributed or disclosed to any third parties without the prior written consent of Nokia. This document is intended for use by Nokia’s customers (“You”/”Your”) in connection with a product purchased or licensed from any company within Nokia Group of Companies. Use this document as agreed. You agree to notify Nokia of any errors you may nd in this document; however, should you elect to use this document for any purpose(s) for which it is not intended, You understand and warrant that any determinations You may make or actions You may take will be based upon Your independent judgment and analysis of the content of this document. Nokia reserves the right to make changes to this document without notice. At all times, the controlling version is the one available on Nokia’s site. No part of this document may be modied. NO WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY OF AVAILABILITY, ACCURACY, RELIABILITY, TITLE, NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, IS MADE IN RELATION TO THE CONTENT OF THIS DOCUMENT. IN NO EVENT WILL NOKIA BE LIABLE FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO SPECIAL, DIRECT, INDIRECT, INCIDENTAL OR CONSEQUENTIAL OR ANY LOSSES, SUCH AS BUT NOT LIMITED TO LOSS OF PROFIT, REVENUE, BUSINESS INTERRUPTION, BUSINESS OPPORTUNITY OR DATA THAT MAY ARISE FROM THE USE OF THIS DOCUMENT OR THE INFORMATION IN IT, EVEN IN THE CASE OF ERRORS IN OR OMISSIONS FROM THIS DOCUMENT OR ITS CONTENT. Copyright and trademark: Nokia is a registered trademark of Nokia Corporation. Other product names mentioned in this document may be trademarks of their respective owners. © 2023 Nokia. Important Notice on Product Safety This product may present safety risks due to laser, electricity, heat, and other sources of danger. Only trained and qualied personnel may install, operate, maintain or otherwise handle this product and only after having carefully read the safety information applicable to this product. The safety information is provided in the Safety Information section in the “Legal, Safety and Environmental Information” part of this document or documentation set. 2 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Table of Contents Summary of changes .................................................................................................................. 13 1 Environmental and safety requirements ................................................................................ 14 2 Introduction to Nokia AirScale System Module units ............................................................ 15 3 Disconnecting cables ................................................................................................................. 16 4 Replacing SFP/QSFP optical transceivers ............................................................................... 18 4.1 Replacing SFPs ................................................................................................................. 18 4.2 Replacing QSFPs .............................................................................................................. 21 5 Replacing Nokia AirScale System Module plug-in units ......................................................... 5.1 Replacing Nokia AirScale common plug-in unit ........................................................... 5.2 Replacing common plug-in unit in SCF ........................................................................ 5.3 Replacing Nokia AirScale capacity plug-in unit ............................................................ 5.4 Replacing the capacity plug-in unit in SCF .................................................................. 25 26 30 31 35 6 Replacing Nokia AirScale subrack submodules ....................................................................... 39 6.1 Replacing AMID fans ........................................................................................................ 39 6.2 Replacing Nokia AirScale System Module Indoor AMIA submodules ........................ 43 6.2.1 Replacing Nokia AirScale System Module Indoor AMIA fans .......................... 43 6.2.2 Replacing GNSS module for AMIA subrack ....................................................... 51 6.2.2.1 Replacing FYGM module for AMIA subrack installed in a 19-inch rack ............................................................................................................................ 60 6.3 Replacing Nokia AirScale System Module Outdoor AMOB submodules .................. 66 6.3.1 Replacing external fans for AMOB subrack ...................................................... 66 6.3.2 Replacing heater for AMOB subrack .................................................................. 73 6.3.3 Replacing Power Distribution Unit (PDU) .......................................................... 79 6.3.4 Replacing AMOB blowers ..................................................................................... 85 6.3.5 Replacing GNSS module for AMOB subrack ..................................................... 93 6.4 Replacing Nokia AirScale System Module Outdoor AMOD submodules ............... 102 6.4.1 Replacing air filter for AMOD subrack (version 102) ..................................... 103 6.4.2 Replacing air filter for AMOD subrack (version 203) ..................................... 114 6.4.3 Replacing inlet blower for AMOD subrack (version 102) .............................. 128 6.4.4 Replacing inlet blower for AMOD subrack (version 203) .............................. 134 6.4.5 Replacing outlet blower for AMOD subrack (version 102) ........................... 140 6.4.6 Replacing outlet blower for AMOD subrack (version 203) ........................... 149 6.4.6.1 Replacing outlet blower for AMOD subrack (version 203) installed inside FCOA .................................................................................................... 155 6.4.7 Replacing PDU (Power Distribution Unit) for AMOD subrack ....................... 165 6.4.8 Replacing heater for AMOD subrack ............................................................... 170 6.4.9 Replacing GNSS module for AMOD subrack ................................................... 174 7 Hardware replacement and/or upgrade ............................................................................... 184 8 Returning faulty units .............................................................................................................. 185 8.1 How to handle units properly ...................................................................................... 185 Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 3 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units 8.2 8.3 8.4 8.5 8.6 8.7 Hardware items to be removed prior to shipping a unit for repair ....................... Packing the faulty unit ................................................................................................. Recommended packing materials .............................................................................. General packing guidelines .......................................................................................... How to load units into a container ............................................................................. How to load units onto a pallet ................................................................................... 187 188 188 189 195 196 9 Appendix A: Optical cable and SFP or QSFP cleaning .......................................................... 198 4 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units List of Figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Disconnecting the optical fiber ................................................................................. Releasing the bale clasp ............................................................................................. Removing the SFP ........................................................................................................ Installing the SFP ......................................................................................................... Connecting the optical fiber ...................................................................................... Disconnecting the optical fiber ................................................................................. Removing the QSFP ..................................................................................................... Installing the QSFP ...................................................................................................... Connecting the optical fiber ...................................................................................... Unscrewing the screws ............................................................................................. Opening the common extractors ........................................................................... Removing the common plug-in unit ....................................................................... Installing the new common plug-in unit ................................................................ Fixing the screws ....................................................................................................... 19 20 20 21 21 23 23 24 24 27 28 28 29 29 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 20 Figure 21 Figure 22 Figure 23 Figure 24 Figure 25 Figure 26 Figure 27 Figure 28 Figure 29 Figure 30 Figure 31 Figure 32 Figure 33 Figure 34 Figure 35 Figure 36 Figure 37 Figure 38 Figure 39 Figure 40 Unscrewing the screws ............................................................................................. Removing the capacity plug-in unit ........................................................................ Installing the new capacity plug-in unit ................................................................. Fixing the screws ....................................................................................................... BBMOD window ......................................................................................................... Configure button in BBMOD window ...................................................................... Baseband Module eCPRI Transport Configuration window ................................ Removing the cover .................................................................................................. Removing the faulty fan ........................................................................................... Inserting the new fan ................................................................................................ Closing the cover ....................................................................................................... Removing the back cover ......................................................................................... Disconnecting the right fan cable ........................................................................... Pulling the right fan out ........................................................................................... Disconnecting the left fan cable ............................................................................. Pulling the left fan out .............................................................................................. Inserting the new right fan ...................................................................................... Inserting the new left fan ......................................................................................... Connecting the right fan cable ................................................................................ Connecting the left fan cable .................................................................................. Installing the back cover ........................................................................................... FYGM and AYGM ........................................................................................................ Disconnecting the RF cable ..................................................................................... Disconnecting the synchronization cable .............................................................. Removing the grounding cable ............................................................................... Removing the module from the plinth ................................................................... 33 33 34 34 36 37 37 40 41 42 42 44 45 45 46 47 48 49 50 51 51 52 53 54 54 55 Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 5 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 41 Figure 42 Figure 43 Figure 44 Figure 45 Figure 46 Figure 47 Figure 48 Figure 49 Figure 50 Figure 51 Figure 52 Figure 53 Figure 54 Figure 55 Figure 56 Figure 57 Figure 58 Figure 59 Figure 60 Figure 61 Figure 62 Figure 63 Figure 64 Figure 65 Figure 66 Figure 67 Figure 68 Figure 69 Figure 70 Figure 71 Figure 72 Figure 73 Figure 74 Figure 75 Figure 76 Figure 77 Figure 78 Figure 79 Figure 80 Figure 81 Figure 82 6 Removing the bracket .............................................................................................. Removing the factory-installed adapter plate ..................................................... Fixing the bracket ...................................................................................................... Fixing the module to the plinth ............................................................................... Fixing the grounding cable ....................................................................................... Synchronization cable connector ........................................................................... Connecting the synchronization cable ................................................................... Connecting the RF cable .......................................................................................... FYGM and AYGM ........................................................................................................ Disconnecting the RF cable ..................................................................................... Disconnecting the synchronization cable .............................................................. Removing the grounding cable ............................................................................... Removing the module from FMAB .......................................................................... Removing the factory-installed adapter plate ..................................................... Fixing FYGM to FMAB ................................................................................................ Tightening the grounding cable screw ................................................................... Synchronization cable connector ........................................................................... Connecting the synchronization cable ................................................................... Tightening the RF cable ............................................................................................ Removing the plastic cover ...................................................................................... Unscrewing the captive and security screws ........................................................ Pulling out the fan tray ............................................................................................ Unscrewing the nut on the external fan connector ............................................. Cutting off the three cable ties .............................................................................. Unscrewing the 12 M4 fan screws .......................................................................... Inserting the new fan assembly (473952A) .......................................................... Inserting the new fan assembly (473952B) .......................................................... Tightening M4 fan screws ........................................................................................ Biding the cables ....................................................................................................... Tightening the nut ................................................................................................... Tightening the eight M4 screws ............................................................................. Inserting the plastic cover ....................................................................................... Detaching the cable. ................................................................................................. Unscrewing captive screws ...................................................................................... Pulling out the heater ............................................................................................... Unscrewing the two pan head screws .................................................................... Tightening the two M4 pan screws ......................................................................... Sliding the heater into AMOB .................................................................................. Tightening the two M4 captive screws ................................................................... Inserting the heater cable into the proper receptacle on PDU .......................... Detaching the connector ......................................................................................... Detaching the output power cables ....................................................................... © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 55 56 57 57 58 58 59 60 61 61 62 62 63 63 64 64 65 65 66 67 68 68 69 69 70 70 71 71 71 72 72 73 74 75 75 76 77 78 78 79 80 81 Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 83 Figure 84 Figure 85 Figure 86 Figure 87 Figure 88 Figure 89 Figure 90 Figure 91 Figure 92 Figure 93 Figure 94 Figure 95 Figure 96 Figure 97 Figure 98 Figure 99 Figure 100 Figure 101 Figure 102 Figure 103 Figure 104 Figure 105 Figure 106 Figure 107 Figure 108 Figure 109 Figure 110 Figure 111 Figure 112 Figure 113 Figure 114 Figure 115 Figure 116 Figure 117 Figure 118 Figure 119 Figure 120 Figure 121 Figure 122 Figure 123 Figure 124 Issue 22. Unscrewing captive screws ...................................................................................... 81 Pulling out the PDU ................................................................................................... 82 Inserting the PDU ...................................................................................................... 82 Tightening the captive screws ................................................................................. 83 Inserting the power cables ...................................................................................... 84 Inserting the input connector ................................................................................. 84 Unscrewing the captive security screws ................................................................ 86 Unscrewing the captive screws ............................................................................... 86 Removing the blower assembly .............................................................................. 87 Disconnecting the blower connector ..................................................................... 87 Unscrewing the blower screws ................................................................................ 88 Unscrewing the M3 screw ........................................................................................ 89 Tightening the blower screws ................................................................................. 90 Tightening the M3 screw .......................................................................................... 91 Connecting the blower connector .......................................................................... 91 Inserting the blower assembly ................................................................................ 92 Tightening the captive screws ................................................................................. 92 Tightening the captive security screws ............................................................... 93 FYGM and AYGM ...................................................................................................... 94 Disconnecting the RF cable ................................................................................... 96 Removing the grounding cable ............................................................................. 96 Unscrewing the grounding cable .......................................................................... 97 Removing the bracket screws ............................................................................... 98 Removing the factory-installed adapter plate ................................................... 98 Tightening the screws ............................................................................................ 99 Tightening the grounding cable screw ................................................................ 99 Synchronization cable connector ....................................................................... 100 Connecting the synchronization cable .............................................................. 100 Tightening the RF cable ....................................................................................... 101 Inserting the module ............................................................................................ 101 Tightening the nuts .............................................................................................. 102 Opening the front door ....................................................................................... 104 Unscrewing the M5 screws. ................................................................................. 104 Pulling out the module ........................................................................................ 105 Removing the rear cover ..................................................................................... 105 Removing the lid ................................................................................................... 106 Lifting the bracket ................................................................................................ 106 Bracket hook ......................................................................................................... 107 Pulling out the air filter ........................................................................................ 107 Removing the bracket .......................................................................................... 108 Fixing adhesive tape ............................................................................................. 108 Installing the bracket ........................................................................................... 109 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 7 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 125 Figure 126 Figure 127 Figure 128 Figure 129 Figure 130 Figure 131 Figure 132 Figure 133 Figure 134 Figure 135 Figure 136 Figure 137 Figure 138 Figure 139 Figure 140 Figure 141 Figure 142 Figure 143 Figure 144 Figure 145 Figure 146 Figure 147 Figure 148 Figure 149 Figure 150 Figure 151 Figure 152 Figure 153 Figure 154 Figure 155 Figure 156 Figure 157 Figure 158 Figure 159 Figure 160 Figure 161 Figure 162 Figure 163 Figure 164 Figure 165 Figure 166 8 Inserting the new air filter ................................................................................... Lowering the fixing bracket ................................................................................. Assembling the service lid .................................................................................. Tightening the captive screws ............................................................................ Inserting the blower ............................................................................................. Tightening the M5 screws. .................................................................................. Resetting the PDU ................................................................................................ Closing the door ................................................................................................... Opening the front door ....................................................................................... Removing the cable tie ........................................................................................ Unscrewing the maintenance cover screw ....................................................... Removing the cover ............................................................................................. Removing the support plate ............................................................................... Securing the cover and plate .............................................................................. Slightly sliding out the inlet blower .................................................................... Prying the air filter ................................................................................................ Removing the air filter ......................................................................................... Installing the new air filter ................................................................................... Aligning the air filter. ............................................................................................ Installing the inlet blower .................................................................................... Installing the support plate ................................................................................. Installing the maintenance cover ....................................................................... Tightening the maintenance cover screw ......................................................... Binding the cables ................................................................................................ Resetting the PDU ................................................................................................ Closing the door ................................................................................................... Opening the front door ....................................................................................... Unscrewing the captive screws .......................................................................... Pulling out the module ........................................................................................ Pushing the connector inside ............................................................................. Removing the fan ................................................................................................. Inserting the connector ....................................................................................... Installing the new fan ........................................................................................... Inserting the module ............................................................................................ Tightening the captive screws ............................................................................ Resetting the PDU ................................................................................................ Closing the door ................................................................................................... Opening the front door ....................................................................................... Removing the cable tie ........................................................................................ Unscrewing the captive screws .......................................................................... Pulling out the module ........................................................................................ Unscrewing the four screws ................................................................................ © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 110 110 111 112 112 113 113 114 115 116 116 117 118 119 120 120 121 122 123 124 124 125 126 126 127 127 129 129 130 130 131 132 132 133 133 134 134 136 136 136 137 137 Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 167 Figure 168 Figure 169 Figure 170 Figure 171 Figure 172 Figure 173 Figure 174 Figure 175 Figure 176 Figure 177 Figure 178 Figure 179 Figure 180 Figure 181 Figure 182 Figure 183 Figure 184 Figure 185 Figure 186 Figure 187 Figure 188 Figure 189 Figure 190 Figure 191 Figure 192 Figure 193 Figure 194 Figure 195 Figure 196 Figure 197 Figure 198 Figure 199 Figure 200 Figure 201 Figure 202 Figure 203 Figure 204 Figure 205 Figure 206 Figure 207 Figure 208 Issue 22. Tightening the screws .......................................................................................... Inserting the module ............................................................................................ Tightening the captive screws ............................................................................ Binding the cables ................................................................................................ Resetting the PDU ................................................................................................ Closing the door ................................................................................................... Removing the rear cover ..................................................................................... Unscrewing the captive screws .......................................................................... Pushing the connector inside ............................................................................. Removing the fan ................................................................................................. Inserting the connector ....................................................................................... Fixing the new fan ................................................................................................ Tightening the captive screws ............................................................................ Blower correct position marking ........................................................................ Tightening the captive screws ............................................................................ Opening the front door ....................................................................................... Resetting the PDU ................................................................................................ Closing the door ................................................................................................... Removing the muffler .......................................................................................... Opening the cover ................................................................................................ Removing the hinges ........................................................................................... Placing the rear cover .......................................................................................... Unscrewing the captive screws .......................................................................... Tightening the captive screws ............................................................................ Fixing the hinges ................................................................................................... Closing the cover .................................................................................................. Installing the muffler ............................................................................................ AMOD three brackets ........................................................................................... Unscrewing the top left bracket ......................................................................... Removing the side bracket ................................................................................. Pulling AMOD out .................................................................................................. Removing the rear bracket ................................................................................. Opening the rear cover ........................................................................................ Removing the hinges ........................................................................................... Placing the rear cover .......................................................................................... Unscrewing the captive screws .......................................................................... Tightening the captive screws ............................................................................ Fixing the hinges ................................................................................................... Closing the rear cover .......................................................................................... Tightening the rear bracket screws ................................................................... Inserting AMOD ..................................................................................................... Fixing the top left bracket ................................................................................... © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 138 138 139 139 140 140 142 143 143 144 145 145 146 146 147 147 148 148 150 151 151 152 153 153 154 154 155 157 157 158 159 159 160 160 161 161 162 162 163 163 164 164 9 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 209 Figure 210 Figure 211 Figure 212 Figure 213 Figure 214 Figure 215 Figure 216 Figure 217 Figure 218 Figure 219 Figure 220 Figure 221 Figure 222 Figure 223 Figure 224 Figure 225 Figure 226 Figure 227 Figure 228 Figure 229 Figure 230 Figure 231 Figure 232 Figure 233 Figure 234 Figure 235 Figure 236 Figure 237 Figure 238 Figure 239 Figure 240 Figure 241 Figure 242 Figure 243 Figure 244 Figure 245 Figure 246 Figure 247 Figure 248 Figure 249 Figure 250 10 Fixing the side bracket ......................................................................................... Opening the door ................................................................................................. Disconnecting the cables .................................................................................... Unscrewing the grounding cable ........................................................................ Unscrewing the screws ........................................................................................ Pulling out the PDU .............................................................................................. Inserting the PDU ................................................................................................. Tightening the screws .......................................................................................... Connecting the grounding cable ........................................................................ Connecting the cables ......................................................................................... Closing the door ................................................................................................... Opening the front door ....................................................................................... Disconnecting the heater cables ........................................................................ Removing the heater ........................................................................................... Fixing the module ................................................................................................. Connecting the cables ......................................................................................... Closing the door ................................................................................................... FYGM and AYGM .................................................................................................... Opening the door ................................................................................................. Disconnecting the RF cable ................................................................................. Disconnecting the synchronization cable ......................................................... Disconnecting the grounding cable ................................................................... Unscrewing the screws ........................................................................................ Pulling out the module ........................................................................................ Unscrewing the screws ........................................................................................ Removing the factory-installed adapter plate ................................................. Fixing the new GNSS ............................................................................................ Inserting the module ............................................................................................ Tightening the screws .......................................................................................... Tightening the grounding screw ........................................................................ Synchronization cable connector ....................................................................... Connecting the synchronization cable .............................................................. Tightening the RF cable ....................................................................................... Closing the door ................................................................................................... Wrong handling of the unit ................................................................................. Placing the unit on the ground on its even side .............................................. Putting the unit in an ESD-compliant plastic packing ..................................... ATTENTION!!! warning labels variants ................................................................ Delivery box label ................................................................................................. Using spare part packaging to return faulty units ........................................... Packing units with an open PCB ......................................................................... Correct procedure for packing a shipping box ................................................. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 165 167 167 167 168 168 168 169 169 169 170 171 172 172 173 173 174 175 175 176 176 177 177 178 178 179 180 180 181 181 182 182 183 183 186 186 187 189 189 190 191 192 Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 251 Figure 252 Figure 253 Figure 254 Figure 255 Figure 256 Figure 257 Figure 258 Figure 259 Figure 260 Figure 261 Figure 262 Figure 263 Figure 264 Figure 265 Figure 266 Figure 267 Figure 268 Figure 269 Figure 270 Figure 271 Figure 272 Figure 273 Figure 274 Figure 275 Issue 22. Example of a wrongly packed shipping box ...................................................... Correct procedure of packing a heavy duty box ............................................. Example of a wrongly-packed heavy duty box ................................................. Flexi Multiradio RF module damaged during transportation ......................... Flexi Multiradio system module damaged during transportation ................. AirScale system module PCB damaged because of misuse .......................... AirScale remote radio head bracket damaged because of misuse .............. Container for larger shipments .......................................................................... Example of a wrongly-packed container .......................................................... Example of a correctly-loaded pallet ................................................................. Example of a wrongly -oaded pallet .................................................................. Example of fiber contamination ......................................................................... Example of SFP contamination ........................................................................... Fiber testing tools ................................................................................................ Basic cleaning and mating rule ........................................................................... Optical cable cleaning diagram ........................................................................... Dry cable cleaning with a cleaning pen .............................................................. Dry cable cleaning with a reel-based cartridge tool ........................................ Wet cable cleaning with a cleaning stick ............................................................ Wet cable cleaning with a wipe ........................................................................... SFP or QSFP cleaning diagram ............................................................................ Transceiver cleaning with a cleaning pen .......................................................... Transceiver cleaning with a dry cleaning stick .................................................. Transceiver cleaning with a wet cleaning stick ................................................. Transceiver cleaning with compressed air ........................................................ © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 192 193 193 194 194 194 195 196 196 197 197 199 199 199 202 203 204 204 204 205 206 207 207 207 208 11 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units List of Tables Table 1 Table 2 Table 3 Table 4 Table 5 12 Safety symbols .............................................................................................................. 14 System Module plug-in units ...................................................................................... 25 Airscale subracks .......................................................................................................... 39 Recommended packing material .............................................................................. 189 Cleaning methods ....................................................................................................... 201 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Summary of changes A list of changes between document issues. You can navigate through the respective changed topics. Changes between issues 21 (2023-01-25, 23R1) and 22 (2023-02-15, 23R2) Replacing Nokia AirScale System Module plug-in units ASIM has been added. Changes between issues 20 (2022-09-08) and 21 (2023-01-25, 23R1) Replacing SFPs Note about radio units that require powering off before SFP or QSFP replacement has been added. Replacing QSFPs Note about radio units that require powering off before SFP or QSFP replacement has been added. Changes between issues 19 (2022-08-10) and 20 (2022-09-08) Replacing Nokia AirScale capacity plug-in unit Information to check for any active alarms has been added. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 13 1. Environmental and safety requirements Only qualified personnel is allowed install, operate, and maintain this product. Always read the safety information first. DANGER! Hot parts. Risk of burns when handling hot parts. Wait at least half an hour after switching off before handling parts. WARNING! Risk of RF exposure Keep away from children. Install in a restricted access location. Table 1: Safety symbols Symbol Explanation Caution Double pole/neutral fusing Warning Hot surface, do not touch Electric shock hazard RF hazard 14 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units 2. Introduction to Nokia AirScale System Module units Information on supported products and the document structure. Replacing of Nokia AirScale System Module products is covered by the content of this document. For the intructions for replacing AirScale System Module and related optional items see: Replacing Nokia AirScale subrack submodules Replacing Nokia AirScale common plug-in unit Replacing Nokia AirScale capacity plug-in unit NOTICE: The replaced faulty product might be damaged if kept on the site without its packaging. After replacing the faulty unit, keep it in clean and dry conditions. Waterproof, sand-proof and dust-proof storage place is mandatory. Note: The recommended temperature range is 20°C (68°F) to 30°C (86°F). For more details on how to properly pack the faulty units, see the Returning faulty units section in this document. Note: For more information on installation and maintenance of Nokia products, see Operating Documentation/Single RAN BTS Site Solutions/Nokia AirScale BTS/Maintaining Nokia AirScale BTS/Best Practices for Improving Equipment Protection and Longevity. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 15 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units 3. Disconnecting cables Information on disconnecting cables in case of replacing Nokia AirScale products. CAUTION! Risk of injury. Always stop transmission before detaching the optical fiber from an optical fiber connector marked with a warning triangle. WARNING! Danger of eye damage. Danger of eye damage caused by invisible laser beam. Make sure that the laser beam is switched off during optical fiber disconnection. NOTICE: Electrostatic Discharge (ESD) can damage the plug-in units. Wear an ESD wrist strap or use a corresponding method when handling the plug-in units. Note: The BTS must be shut down before disconnecting the cables. This chapter provides general procedures for disconnecting cables in Nokia AirScale products. Nokia AirScale System Module Nokia AirScale System Module requires disconnecting the following cables: Capacity plug-in unit Optical cables Common plug-in unit External power feed EAC and synchronization cables 16 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Transmission cables System extension cables Optical cables Grounding For more specific information about cabling, see: Single RAN BTS Site Solutions/Nokia AirScale BTS/Installing Nokia AirScale System Modules/Nokia AirScale System Module — AMIA Installing and Cabling Manual Single RAN BTS Site Solutions/Nokia AirScale BTS/Installing Nokia AirScale System Modules/Nokia AirScale System Module — AMOB Installing and Cabling Manual Single RAN BTS Site Solutions/Nokia AirScale BTS/Installing Nokia AirScale System Modules/Nokia AirScale System Module — AMOD Installing and Cabling Manual Single RAN BTS Site Solutions/Nokia AirScale BTS/Installing Nokia AirScale System Modules/Nokia AirScale System Module — AMID Installing and Cabling Manual Single RAN BTS Site Solutions/Nokia AirScale BTS/Installing Nokia AirScale System Modules/Nokia Liquid-Cooled AirScale System Module — AMIAL Installing and Cabling Manual Single RAN BTS Site Solutions/Nokia AirScale BTS/Installing Nokia AirScale System Modules/Nokia Liquid-Cooled AirScale System Module — AMIDL Installing and Cabling Manual Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 17 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units 4. Replacing SFP/QSFP optical transceivers Information on how to replace a faulty SFP/QSFP optical transceiver. 4.1 Replacing SFPs Information on how to replace a faulty SFP. Before you start WARNING! Risk of eye damage caused by invisible laser beam. Make sure that the laser beam is switched off when optical cables are installed. NOTICE: Overbending the optical fiber cables damages the cables and can detach or damage the connectors. Do not bend optical fiber cables to a radius smaller than the minimum radius of 50 mm (1.97 inches) for cables with a 5 mm (0.20 inches) diameter, or 70 mm (2.76 inches) for cables with a 7 mm (0.28 inches) diameter. Optical fibers are sensitive. The presence of contaminants lowers the mechanical strength of the optical fiber and might dampen the transmission of light in the fibers. Clean all optical fiber connectors before installation using an optical fiber connector cleaning kit. Do not remove SFP protection caps until inserting the optical fiber. When removed, store the caps in a clean, sealed box. Use Nokia provided SFPs to avoid the risk of operational issues. NOTICE: Electrostatic Discharge (ESD) can damage the plug-in units. Wear an ESD wrist strap or use a corresponding method when handling the plug-in units. 18 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Note: All radio units from hardware releases older than 5.1 require powering off before replacing a faulty SFP or QSFP. For more information about radio units and their hardware release, see the Single RAN/Reference Documentation/5G and SRAN Supported Configurations/SBTS Supported Configurations document. Equipment preconditions You need the following: SFP optical transceiver SFP pull hook Small flat-head screwdriver Clean box for protection caps SFP/QSFP cleaning kit Procedure 1 Press down on the connector and disconnect the fiber from the SFP. Note: Optical cables connected to radio units can be equipped with additional ingress protection plug kits. To identify the plug kit, see Single RAN BTS Site Solutions/Nokia AirScale BTS/Nokia AirScale BTS Descriptions/List of Supported Nokia BTS Cables and Cable Accessories. For installation instructions, see the respective installing document. Figure 1: Disconnecting the optical fiber Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 19 2 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Open the bail lever to unlock the SFP. Tip: If you can't open the bail lever with your finger, you can use a small, flat-head screwdriver. Figure 2: Releasing the bale clasp 3 Remove the faulty SFP. Tip: You can use an SFP pull hook for easier operation. Figure 3: Removing the SFP 4 Install the new SFP. Note: The bail lever can remain closed when inserting the new SFP. 20 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 4: Installing the SFP 5 Clean and inspect the disconnected fiber. Note: For information on how to clean optical fibers, see: Appendix A: Optical cable cleaning. 6 Connect the fiber to the new SFP. Figure 5: Connecting the optical fiber 4.2 Replacing QSFPs Information on how to replace a faulty QSFP. Before you start Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 21 WARNING! Risk of eye damage caused by invisible laser beam. Make sure that the laser beam is switched off when optical cables are installed. NOTICE: Overbending the optical fiber cables damages the cables and can detach or damage the connectors. Do not bend optical fiber cables to a radius smaller than the minimum radius of 50 mm (1.97 inches) for cables with a 5 mm (0.20 inches) diameter, or 70 mm (2.76 inches) for cables with a 7 mm (0.28 inches) diameter. Optical fibers are sensitive. The presence of contaminants lowers the mechanical strength of the optical fiber and might dampen the transmission of light in the fibers. Clean all optical fiber connectors before installation using an optical fiber connector cleaning kit. Use Nokia provided QSFPs to avoid the risk of operational issues. Do not remove QSFP protection caps until inserting the optical fiber. When removed, store the caps in a clean, sealed box. NOTICE: Electrostatic Discharge (ESD) can damage the plug-in units. Wear an ESD wrist strap or use a corresponding method when handling the plug-in units. Note: All radio units from hardware releases older than 5.1 require powering off before replacing a faulty SFP or QSFP. For more information about radio units and their hardware release, see the Single RAN/Reference Documentation/5G and SRAN Supported Configurations/SBTS Supported Configurations document. Equipment preconditions You need the following: QSFP optical transceiver Clean box for protection caps SFP/QSFP cleaning kit 22 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Procedure 1 Grasp the release collar on the connector and pull out the fiber from the QSFP. Note: Optical cables connected to radio units can be equipped with additional ingress protection plug kits. To identify the plug kit, see Single RAN BTS Site Solutions/Nokia AirScale BTS/Nokia AirScale BTS Descriptions/List of Supported Nokia BTS Cables and Cable Accessories. For installation instructions, see the respective installing document. Figure 6: Disconnecting the optical fiber 2 Remove the faulty QSFP. Figure 7: Removing the QSFP 3 Install the new QSFP. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 23 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 8: Installing the QSFP 4 Clean and inspect the disconnected fiber. Note: For information on how to clean optical fibers, see: Appendix A: Optical cable cleaning. 5 Connect the fiber to the new QSFP. Figure 9: Connecting the optical fiber 24 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units 5. Replacing Nokia AirScale System Module plug-in units Information on replacing Nokia AirScale System Module common and capacity plug-in units. This section provides procedures for replacing Nokia AirScale System Module plug-in units: Table 2: System Module plug-in units Common unit Capacity unit Value Nokia product code Value Nokia product code ASIA 473095A ABIA 473096A ASIB 473764A ABIC 474723A ASIK 474021A ABIL 474020A 474020B ASIL 474767A ABIN 474824A 474824B ASIM 475765A ABIO 475266A 475266B ASIAA 474403A - - ASIBA 474408A - - ASIKA 474424A - - For information on how to replace liquid cooled plug-in units, see: Single RAN BTS Site Solutions/Nokia AirScale BTS/Installing Nokia AirScale System Modules/Nokia Liquid-Cooled AirScale System Module — AMIAL Installing and Cabling Manual Single RAN BTS Site Solutions/Nokia AirScale BTS/Installing Nokia AirScale System Modules/Nokia Liquid-Cooled AirScale System Module — AMIDL Installing and Cabling Manual For more specific information, see: Single RAN BTS Site Solutions/Nokia AirScale BTS/Nokia AirScale BTS Descriptions/Nokia AirScale System Module Product Description Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 25 Single RAN BTS Site Solutions/Nokia AirScale BTS/Nokia AirScale BTS Descriptions/Nokia Liquid-Cooled AirScale System Module Product Description 5.1 Replacing Nokia AirScale common plug-in unit Information on replacing Nokia AirScale common plug-in unit in an AirScale subrack. Purpose If the plug-in unit fails or becomes degraded, it must be replaced with a new one. Units can be replaced from the front of the subrack. Before you start CAUTION! Risk of personal injury. The plug-in unit might be hot. Do not remove the plug-in unit until it is cool. NOTICE: Electrostatic Discharge (ESD) can damage the plug-in units. Wear an ESD wrist strap or use a corresponding method when handling the plug-in units. NOTICE: It is mandatory to replace the common unit in dry and clean conditions. Tip: Graphics serve as an example only. The same instructions can be used for other common units and subracks and there is no need to remove the subrack from the plinth. Equipment preconditions You need the following: Torque screwdriver 26 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Torx bit T10 Procedure 1 2 Prepare the faulty unit for removal. 1.1 Create a configuration backup. 1.2 Lock the BTS using the Lock BTS with Element Manager. 1.3 Disconnect the DC mains power breaker. Disconnect the cables. For more information, see the proper installing and cabling manual. 3 Unscrew the two common plug-in unit screws. Figure 10: Unscrewing the screws 4 Open the two common plug-in unit extractors. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 27 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 11: Opening the common extractors 5 Pull out the common plug-in unit from the subrack. Figure 12: Removing the common plug-in unit 6 Open the extractors in the new common plug-in unit. 7 Insert the new common plug-in unit carefully into the subrack and close the extractors. 28 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 13: Installing the new common plug-in unit 8 Tighten the two screws by hand, and then tighten them to 1 Nm (8.9 in-lb), using a TX10 screwdriver. Figure 14: Fixing the screws 9 Connect the cables. For more information, see the proper installing and cabling manual. 10 Connect the DC mains power breaker. 11 Restore the configuration from the backup. 12 Select both halves on the subrack with Element Manager. 12.1 The pop-up message should be visible. Do you want to see both halves of the subrack? Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 29 12.2 Select Yes in the pop-up message. 13 Perform commissioning. This step is only valid if the primary common plug-in unit is being replaced. In case of replacing the secondary common plug-in unit, commissioning is not mandatory. For more information on commissioning, see Single RAN System/Commissioning and Configuring/Commissioning 5G and SRAN BTS and Single RAN System/Administration Tools/WebEM User Guide in Single RAN Operating Documentation. Postrequisites When the replacement is completed, connect the plug-in unit as described in the proper installing and cabling manual. Note: It is recommended to use dust covers for all unused ports. Cable the plug-in unit as it was cabled before the replacement. The same cables must be connected to the same ports. Remember also about clamping the DC cables and the GND cables. Load a backup commissioning file with Element Manager after plugging in the module. Configuration reset needs to be performed when ASIA module is replaced in a single core configuration or when the primary ASIA module is replaced in a dual core configuration. No such reset is required during replacement of the secondary ASIA in a dual core configuration. 5.2 Replacing common plug-in unit in SCF How to replace common plug-in unit in case of failure. Procedure 1 Open WebEM and go to Software ► Software Update. 2 Click on the Backup BTS Site Configuration button to back up the site 30 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units configuration file (SCF) and mark the software version number. 3 Power off the BTS. 4 Disconnect the common plug-in unit cabling. 5 Connect the common plug-in unit. For more information see: Replacing Nokia AirScale common plug-in unit 6 Restart and commission the BTS using the saved backup SCF Product code need to be updated manually or by using the Commissioning Wizard in the WebEM. The Commissioning Wizard uses a product code defined in a corresponding hardware configuration object to identify a particular hardware topology and capability. The product codes must be properly defined. If any hardware unit product code is invalid, Comissioning Wizard reports it as an error and gives you a chance to fix it, by using the Align HW type button. NOTICE: After clicking Align HW type the RF sharing related configuration are cleared. 7 Upload the correct software version. If the common plug-in unit contains Factory Delivery Software (FDSW), use FDSW Rescue Console to upgrade the common plug-in unit software to BTS software (the same software level as on extension) For more information, see Operating Documentation/Single RAN System/Commissioning and Configuring/Commissioning 5G and SRAN BTS using WebEM/Upgrading FDSW using Rescue Console. 5.3 Replacing Nokia AirScale capacity plug-in unit Information on replacing Nokia AirScale capacity plug-in unit in an AirScale subrack. Purpose If the plug-in unit fails or becomes degraded, it must be replaced with a new one. Units can be replaced from the front of the subrack. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 31 Before you start CAUTION! Risk of personal injury. The plug-in unit might be hot. Do not remove the plug-in unit until it is cool. NOTICE: Electrostatic Discharge (ESD) can damage the plug-in units. Wear an ESD wrist strap or use a corresponding method when handling the plug-in units. NOTICE: It is mandatory to replace the capacity unit in dry and clean conditions. Tip: Graphics serve as an example only. The same instructions can be used for other capacity units and subracks and there is no need to remove the subrack from the plinth. No need to power-off the BTS when a capacity unit is being replaced. BTS reset is not necessary and can be avoided if a configuration is not changed. Equipment preconditions You need the following: Torque screwdriver Torx bit T10 Procedure 1 Lock all radio units that are connected to the capacity plug-in unit. 1.1 Navigate to BTS Status ► Site Runtime View ► Detailed Site View. 1.2 32 Lock the radio modules using the Lock button. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units 2 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Disconnect the optical cables. For more information, see Disconnecting cables. 3 Unscrew the capacity plug-in unit screws. Figure 15: Unscrewing the screws 4 Pull out the capacity plug-in unit from the subrack. Figure 16: Removing the capacity plug-in unit 5 Insert the new capacity plug-in unit carefully into the subrack. NOTICE: After removing the capacity plug-in unit wait at least 10 seconds before inserting the new one. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 33 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 17: Installing the new capacity plug-in unit 6 Tighten the two screws by hand, and then tighten them to 1 Nm (8.9 in-lb), using a TX10 screwdriver. Figure 18: Fixing the screws NOTICE: If any capacity units are removed permanently, leaving an empty slot, dummy panels must be installed to the subrack. Make sure that every empty slot has a dummy panel installed. The dummy panels ensure an optimal airflow and proper cooling of the assembled modules. Dummy panels also protect the backplane connectors from airborne contaminants. 7 34 Connect the optical cables into the respective SFP/QSFP ports. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units For more information on cabling see the proper installing and cabling manual. Note: Be sure to connect the cables the same way as before disconnecting them. 8 Unlock all the radios locked in Step 1. Postrequisites Note: When a new capacity plug-in unit is inserted, FHS can take up to 10 minutes to get back online if the fault 23:Incompatible SW version detected is raised. Remember to check if any active alarms occur after the replacement. For more information on commissioning, see Single RAN System/Commissioning and Configuring/Commissioning 5G and SRAN BTS and Single RAN System/Administration Tools/WebEM User Guide in Single RAN Operating Documentation. It is recommended to use dust covers for all unused ports. 5.4 Replacing the capacity plug-in unit in SCF Instruction on how to replace capacity plug-in unit in the site configuration file (SCF). Procedure 1 Start the WebEM application. 2 Go to Configuration>Configuration Management>Commissioning Wizard window. 3 Edit the SCF In the offline mode - load SCF. Click Load site configuration file button and select desired SCF. In the online mode - create new plan. To create new SCF use Create plan button Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 35 in Commissioning Wizard, then mark the Copy configuration from checkbox and select the plan. Click Create button. 4 Click the Change module type icon in the BBMOD window and type in the name of the new capacity plug-in unit. Figure 19: BBMOD window Note: When switching from ABIL capacity plug-in unit to ABIO capacity plug-in unit you need to configure following parameters: The BBMOD Baseband board configuration type (bbmodBoardConfigType) parameter set to the value used by the BBMOD board configuration. The CABLINK Radio protocol type (radioProtocolType) parameter set to eCPRI For more information on supported hardware configuration see 5 Optional: eCPRI configuration for the new capacity plug-in unit. If the new capacity plug-in unit supports eCPRI configuration, you must perform the following steps for the proper deployment of the new capacity plug-in unit. 5.1 36 Click the Configure button. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 20: Configure button in BBMOD window 5.2 Go to Baseband Module eCPRI Transport Configuration tab and configure eCPRI related parameters. Figure 21: Baseband Module eCPRI Transport Configuration window 6 Click the Validate Plan button and clear all validation errors. 7 Click Save BTS Configuration. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 37 8 Replace Nokia AirScale capacity plug-in unit hardware at the site. 9 Upload previously modified SCF file to the BTS. 9.1 Go to Configuration>Configuration Management>Parameter Editor. 9.2 Click the Load site configuration file. 9.3 Select SCF and click Open. 9.4 Optional: Correct the validation errors if they occur. 9.5 38 Click Activate plan. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units 6. Replacing Nokia AirScale subrack submodules Information on replacing individual elements of various Nokia AirScale subracks. This replacement instructions concern the following AirScale subracks: Table 3: Airscale subracks Subrack Nokia product code AMIA 473098A AMOB 473952A AMOD 474930A For more information on installing plug-in units, see: Single RAN BTS Site Solutions/Nokia AirScale BTS/Installing Nokia AirScale System Modules/Nokia AirScale System Module — AMIA Installing and Cabling Manual Single RAN BTS Site Solutions/Nokia AirScale BTS/Installing Nokia AirScale System Modules/Nokia AirScale System Module — AMOB Installing and Cabling Manual Single RAN BTS Site Solutions/Nokia AirScale BTS/Installing Nokia AirScale System Modules/Nokia AirScale System Module — AMOD Installing and Cabling Manual Single RAN BTS Site Solutions/Nokia AirScale BTS/Installing Nokia AirScale System Modules/Nokia AirScale System Module — AMID Installing and Cabling Manual 6.1 Replacing AMID fans Replace faulty fans to avoid overheating. Before you start CAUTION! Risk of personal injury Do not touch the fan blades when they are rotating. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 39 NOTICE: Replacing the fan assembly while the module is operational increases the heat and causes performance degradation of the module. In case of one failed fan, both fans need to be replaced at the same time. Electrostatic discharge (ESD) can damage the plug-in units. Wear an ESD wrist strap or use a corresponding method when handling plug-in units. Equipment preconditions You need the following: AMID fan assembly (093692A) Torque screwdriver Torx bit T20 Procedure 1 Shut down the unit, if necessary. It is also possible to replace the fans without shutting down the unit. Shutting down is the recommended option. 2 Unscrew the four M4 screws to remove the rear cover. Figure 22: Removing the cover 40 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units 3 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Unplug and remove both fans. Note: The figure below shows the right fan, but the procedure is the same for both. Figure 23: Removing the faulty fan 4 Fix the new fans and insert the connector. NOTICE: Make sure the airflow direction is the same as before. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 41 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 24: Inserting the new fan 5 Fix the rear cover and tighten the four M4 screws to 2.2 Nm (17.7 in-lb). Figure 25: Closing the cover 42 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 6.2 Replacing Nokia AirScale System Module Indoor AMIA submodules Information on replacing individual elements of Nokia AirScale AMIA subrack. 6.2.1 Replacing Nokia AirScale System Module Indoor AMIA fans Information on replacing Nokia AirScale AMIA subrack fans. Purpose The AirScale AMIA subrack includes fans with changeable airflow direction. If the fans fail or become degraded, they must be replaced with new ones. Fans can be replaced from the back side of the AMIA subrack. Before you start CAUTION! Risk of personal injury. Do not touch the fan blades when they are rotating. NOTICE: Replacing the fan assembly while the module is operational increases the heat and causes performance degradation of the module. Operating the module for a long time in high ambient temperature and without proper cooling might damage the module. Replace the faulty fan as soon as possible. Do not rest the module with the fans facing down because the fans might break. In case of one failed fan unit, both fan units need to be replaced at a time. Both fan units must be from the same supplier. The reference number of the fan units is 087442A. Equipment preconditions You need the following: Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 43 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units External fan assembly (087442A) Torx screwdriver T20 Procedure 1 Shut down the module, if necessary. It is also possible to replace the fans withouth shutting down the unit. Shutting down is the recommended option. 2 Put on the ESD wrist strap around your wrist and attach the strap to the available grounding point. 3 Detach the back cover from the AMIA subrack by removing the six M4 screws, using a TX20 screwdriver. Keep the screws for later use. Figure 26: Removing the back cover 4 Disconnect the fan cable and pull the faulty fan out. Perform this operation for both fans starting from the failed one. Note: To minimize the risk of overheating, always change one fan at a time. Press the release trigger on the connector and pull out the connector. 4.1 44 Disconnect the right fan. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 27: Disconnecting the right fan cable Figure 28: Pulling the right fan out 4.2 Issue 22. Disconnect the left fan. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 45 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 29: Disconnecting the left fan cable 46 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 30: Pulling the left fan out 5 Insert the new fan into the four pins to secure the fan. NOTICE: Make sure that airflow direction of the new fans matches the old fans. 5.1 Issue 22. Insert the right fan. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 47 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 31: Inserting the new right fan Note: Make sure the fan is oriented properly, so the little arrow on the side points towards the AMIA subrack. 5.2 48 Insert the left fan. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 32: Inserting the new left fan 6 Connect the fan cable. 6.1 Issue 22. Connect the right fan cable. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 49 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 33: Connecting the right fan cable 6.2 50 Connect the left fan cable. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 34: Connecting the left fan cable 7 Fix and tighten AMIA back cover to 2.2 Nm (19.5 in-lb) using six M4 screws. Figure 35: Installing the back cover 6.2.2 Replacing GNSS module for AMIA subrack Information on how to replace FYGM/AYGM module in AMIA subrack. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 51 Before you start NOTICE: Electrostatic discharge (ESD) can damage the plug-in units. Wear an ESD wrist strap or use a corresponding method when handling the hardware units. Note: This instruction shows FYGM as an example, but is the same for both FYGM and AYGM modules. Figure 36: FYGM and AYGM Equipment preconditions You need the following: FYGM/AYGM GNSS Receiver (473394A/475705A) Torque screwdriver Torx bit T10, T25 Torque wrench 8 mm open end crowfoot wrench Procedure 1 Disconnect all cables from the front interface. 1.1 52 Unscrew and disconnect the RF cable. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 37: Disconnecting the RF cable 1.2 Unscrew and disconnect the synchronization cable. Note: For AYGM module simply pull out the cable. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 53 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 38: Disconnecting the synchronization cable 1.3 Unscrew the grounding cable. Figure 39: Removing the grounding cable 54 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 2 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Unscrew the two screws to remove the module from the plinth. Figure 40: Removing the module from the plinth 3 Unscrew the four screws to remove the faulty module from the AMHB bracket. Figure 41: Removing the bracket Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 55 4 Unscrew the four screws to remove the factory-installed adapter plate from the new module. Note: This step is valid for FYGM only. AYGM module does not come with the adapter plate. Figure 42: Removing the factory-installed adapter plate 5 Install the new module to the AMHB bracket by tightening the four screws to 0.8 Nm (7.1 in-lb). Note: There are two possible orientations (front or side) of the module installed on AMHB. Make sure you fix the bracket same way as before. 56 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 43: Fixing the bracket 6 Fix the module to the plinth and tighten the screws to 4.3 Nm (38.1 in-lb). Figure 44: Fixing the module to the plinth 7 Connect all cables to the front interface. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 57 7.1 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Fix and tighten the grounding cable to 4.3 Nm (38.1 in-lb). Figure 45: Fixing the grounding cable 7.2 Connect the synchronization cable. NOTICE: FYGM connector guide pin and synchronization cable connector slot must be aligned carefully. Turn the cable connector tightening gland until there is resistance. The gland must not be loosened. Figure 46: Synchronization cable connector 58 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Note: For AYGM module simply plug in the cable. Figure 47: Connecting the synchronization cable 7.3 Issue 22. Connect the RF cable and tighten it to 0.8 Nm (7.1 in-lb). © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 59 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 48: Connecting the RF cable 6.2.2.1 Replacing FYGM module for AMIA subrack installed in a 19-inch rack Information on how to replace FYGM/AYGM module when AMIA is installed in a 19-inch rack. Before you start Make sure you have the following items at hand: FYGM/AYGM GNSS Receiver (473394A/475705A) Torque screwdriver Torx bit T10, T25 Torque wrench 8 mm open end crowfoot wrench 60 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Note: This instruction shows FYGM as an example, but is the same for both FYGM and AYGM modules. Figure 49: FYGM and AYGM NOTICE: Electrostatic discharge (ESD) can damage the plug-in units. Wear an ESD wrist strap or use a corresponding method when handling the hardware units. Procedure 1 Disconnect all cables from the front interface. 1.1 Unscrew and disconnect the RF cable. Figure 50: Disconnecting the RF cable 1.2 Issue 22. Unscrew and disconnect the synchronization cable. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 61 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Note: For AYGM module simply pull out the cable. Figure 51: Disconnecting the synchronization cable 1.3 Unscrew the grounding cable. Figure 52: Removing the grounding cable 2 62 Unscrew the four screws to remove the module from FMAB. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Figure 53: Removing the module from FMAB 3 Unscrew the four screws to remove the factory-installed adapter plate from the new module. Note: This step is valid for FYGM only. AYGM module does not come with the adapter plate. Figure 54: Removing the factory-installed adapter plate 4 Fix the new module to FMAB with the four screws and tighten to 0.8 Nm (7.1 in-lb). Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 63 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 55: Fixing FYGM to FMAB 5 Connect all cables to the front interface. 5.1 Tighten the grounding screw to 4.3 Nm (38.1 in-lb). Figure 56: Tightening the grounding cable screw 5.2 64 Connect the synchronization cable. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units NOTICE: FYGM connector guide pin and synchronization cable connector slot must be aligned carefully. Turn the cable connector tightening gland until there is resistance. The gland must not be loosened. Figure 57: Synchronization cable connector Note: For AYGM module simply plug in the cable. Figure 58: Connecting the synchronization cable 5.3 Issue 22. Connect the RF cable and tighten it to 0.8 Nm (7.1 in-lb). © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 65 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 59: Tightening the RF cable 6.3 Replacing Nokia AirScale System Module Outdoor AMOB submodules Information on replacing individual elements of Nokia AirScale AMOB subrack. 6.3.1 Replacing external fans for AMOB subrack Replace faulty fans to avoid temperature rise. Purpose If the fans fail or become degraded, they must be replaced with new ones. Before you start CAUTION! Risk of personal injury. Do not touch the fan blades when they are rotating. 66 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units NOTICE: Replacing the fan assembly while the module is operational increases the heat and causes performance degradation of the module. Note: Individual external fans cannot be replaced. Whole fan assembly must be replaced. Equipment preconditions You need the following: External fan assembly (088763A) Torx screwdriver T20, T25 Security torx screwdriver T20 20 mm wrench Side cutters for cutting cable ties Procedure 1 Unscrew the two M5 screws and remove the plastic cover. Figure 60: Removing the plastic cover 2 Unscrew the eight M4 screws using T20. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 67 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 61: Unscrewing the captive and security screws 3 Pull out the fan tray gently using the handles and find the right angle connector. Figure 62: Pulling out the fan tray 4 68 Unscrew the nut on the external fan connector with the adjustable wrench. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 63: Unscrewing the nut on the external fan connector 5 Cut off the three cable ties and release the cables. Figure 64: Cutting off the three cable ties 6 Unscrew the 12 M4 fan screws with a T20 screwdriver. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 69 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 65: Unscrewing the 12 M4 fan screws 7 Pull out the faulty fan assembly. 8 Insert the new fan assembly into the fan tray. Tip: Make sure that the fan cables do not block the airflow. Note: There are two versions of the fan assembly with different airflow direction: 473952B and 473952A. Make sure to install the fan assembly in the proper position. Select from the available options 473952A Figure 66: Inserting the new fan assembly (473952A) 473952B 70 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 67: Inserting the new fan assembly (473952B) 9 Tighten the 12 M4 fan screws to torque 2.2 Nm (19.5 in-lb). Figure 68: Tightening M4 fan screws 10 Bind the cables with three cable ties. Figure 69: Biding the cables 11 Insert the external fan connector into the cable entry and tighten the nut to torque 0.5~0.7 Nm (4.4~6.2 in-lb) using the adjustable wrench. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 71 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 70: Tightening the nut 12 Insert the fan tray. 13 Tighten the eight M4 screws with torque 2.2 Nm (19.5 in-lb). Figure 71: Tightening the eight M4 screws 14 72 Insert the plastic cover, tighten two M5 screws with torque 4.3 Nm (38.0 in-lb). © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 72: Inserting the plastic cover 6.3.2 Replacing heater for AMOB subrack If heater is faulty, replace it with a new one. Purpose If the heater fails or becomes degraded, it must be replaced with a new one. Before you start CAUTION! Risk of personal injury. Surface of the heater might be hot. Do not remove the heater until it is cool. Note: AMOB is delivered with one heater allowing cold start from –25°C (–13°F) To reduce the cold start time, or to allow cold start from –40°C (–40°F), the second heater (AMFI - 474419A) is required. For more details on AMOB cold start, see the Single RAN BTS Site Solutions/Nokia AirScale BTS/Nokia AirScale BTS Descriptions/Nokia AirScale System Module Product Description document. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 73 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Equipment preconditions You need the following: AMFI heater assembly for AMOB (474419A) Torx screwdriver T20 Key to the AMOB front door Procedure 1 Detach the heater cable from Power Distribution Unit (PDU). Figure 73: Detaching the cable. 2 Unscrew the two M4 captive screws from the heater bracket assembly. Keep the screws for later use. 74 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 74: Unscrewing captive screws 3 Pull out the heater with the heater bracket. Figure 75: Pulling out the heater 4 Unscrew the two M4 screws from the bracket and remove the faulty heater. Keep the Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 75 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units screws for later use. Figure 76: Unscrewing the two pan head screws 5 Align the new heater to the heater bracket assembly. 6 Tighten the two M4 pan head screws to 2.2 Nm (19.5 in-lb). 76 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 77: Tightening the two M4 pan screws 7 Slide the heater into AMOB. NOTICE: Ensure that the heater cable is loose. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 77 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 78: Sliding the heater into AMOB 8 Tighten the two M4 captive screws to 2.2 Nm (19.5 in-lb) with T20 torx screwdriver. Figure 79: Tightening the two M4 captive screws 9 78 Loop the heater cable around the bracket and insert the connector into the proper © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units receptacle on PDU. Figure 80: Inserting the heater cable into the proper receptacle on PDU 6.3.3 Replacing Power Distribution Unit (PDU) If the PDU is faulty, replace it with a new one. Purpose If the PDU fails or becomes degraded, it must be replaced with a new one. Before you start CAUTION! Risk of personal injury. Switch off the AC power breaker before you start. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 79 NOTICE: Switch off the BTS before performing this procedure. Perform a commissioning file backup before replacing the module. Equipment preconditions You need the following: PDU Box Assembly (088764A) Torx screwdriver T20, T25 8 mm wrench Side cutters Snips Key to the AMOB front door Procedure 1 Detach the input Anderson connector. Figure 81: Detaching the connector 2 80 Detach the output power cables from the common plug-in unit. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 82: Detaching the output power cables 3 Unscrew the two M4 captive screws. Figure 83: Unscrewing captive screws 4 Lightly pull out the PDU about 50 mm (2 in). 5 Disconnect all connectors on the PDU front panel including heater, fans, ground cables and temperature sensor. 6 Pull out the whole PDU unit. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 81 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 84: Pulling out the PDU 7 Insert the new PDU unit. Make sure that the rear panel fits the connector. Figure 85: Inserting the PDU 8 Insert all connectors on the PDU front panel including heater, fans, ground cables 82 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units and temperature sensor. Note: For more information about cabling, see Single RAN BTS Site Solutions/Nokia AirScale BTS/Installing Nokia AirScale System Modules/Nokia AirScale System Module — AMOB Installing and Cabling Manual. Note: Cables cannot be routed on the top of heaters. 9 Tighten the two M4 captive screws to 2.2 Nm (19.5 in-lb). Figure 86: Tightening the captive screws 10 Insert the power cables into common plug-in unit. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 83 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 87: Inserting the power cables 11 Insert the input Anderson connector. Figure 88: Inserting the input connector 12 84 Close and lock the front door and power up the device. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units 6.3.4 Replacing AMOB blowers Replace faulty fans to avoid temperature rise. Purpose If the blower fails or becomes degraded, it must be replaced with a new one. Before you start CAUTION! Risk of personal injury. Do not touch the blower blades when they are rotating. NOTICE: Switch off the BTS before performing this procedure. Perform a commissioning file backup before replacing the module. Note: Graphics used in this procedure show the right fan replacement, but the procedure is the same for both fans. Equipment preconditions You need the following: Internal fan assembly (088759A) Torx screwdriver T10, T20, T25 Security torx screwdriver T20 Torque wrench 8 mm socket wrench Procedure 1 Unscrew the 16 M4 captive security screws from the AMOB rear cover. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 85 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Note: Do not remove the screws completely. Figure 89: Unscrewing the captive security screws 2 Remove the AMOB rear cover. 3 Unscrew the four M4 captive screws from the blower assembly. Figure 90: Unscrewing the captive screws 4 86 Take out the blower assembly about 50 mm (2 in) from the AMOB. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 91: Removing the blower assembly 5 Disconnect the blower connector from the blower cable. Figure 92: Disconnecting the blower connector Note: Disconnect the connector corresponding to the blower that must be replaced. 6 Detach the blower from the assembly by removing the four M4 blower screws. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 87 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 93: Unscrewing the blower screws 7 88 Unscrew the M3 blower screw and remove the blower. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 94: Unscrewing the M3 screw 8 Tighten the new blower to the blower assembly using the M4 screws, tighten to 2.2 Nm (19.5 in-lb). Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 89 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 95: Tightening the blower screws 9 Manage the blower cables using a metal cable clip and tighten the M3 screw, torque 0.8 Nm (7.1 in-lb). 90 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 96: Tightening the M3 screw 10 Connect the blower connector. Figure 97: Connecting the blower connector 11 Insert the blower assembly carefully into AMOB. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 91 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 98: Inserting the blower assembly 12 Tighten the four M4 captive screws to 2.2 Nm (19.5 in-lb). Figure 99: Tightening the captive screws 13 Install the AMOB rear cover. Tighten the 16 M4 security captive screws to 0.8 Nm (7.1 in-lb) firstly, re-tighten to 1.8 Nm (15.9 in-lb). 92 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 100: Tightening the captive security screws 6.3.5 Replacing GNSS module for AMOB subrack Information on how to replace FYGM/AYGM module in AMOB subrack. Purpose If the GNSS module fails or becomes degraded replace it with a new one. Before you start NOTICE: Electrostatic discharge (ESD) can damage the plug-in units. Wear an ESD wrist strap or use a corresponding method when handling the hardware units. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 93 Note: If the BTS does not support the LTE3459: Synchronization Holdover feature, the operational status of the BTS decreases during the GNSS replacement. After replacing the GNSS module it performs a self-survey procedure during which the BTS might not be fully operational. Note: This instruction shows FYGM as an example, but is the same for both FYGM and AYGM modules. Figure 101: FYGM and AYGM Equipment preconditions You need the following: FYGM/AYGM GNSS Receiver (473394A/475705A) Key to the AMOB front door Torque screwdriver Torx bits T10, T25 Torque wrench 8 mm open end crowfoot wrench 7 mm socket Procedure 1 94 Unscrew the two M4 flange nuts. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure: Unscrewing the two flange nuts 2 Lightly pull out the module about 10 cm (4 in.). 3 Disconnect all cables from the front interface. 3.1 Issue 22. Unscrew and disconnect the RF cable. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 95 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 102: Disconnecting the RF cable 3.2 Unscrew and disconnect the synchronization cable. Note: For AYGM module simply pull out the cable. Figure 103: Removing the grounding cable 3.3 96 Unscrew the grounding cable. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 104: Unscrewing the grounding cable 4 Pull out the module. 5 Remove the faulty module from the bracket by unscrewing the four screws. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 97 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 105: Removing the bracket screws 6 Unscrew the four screws to remove the factory-installed adapter plate from the new module. Note: This step is valid for FYGM only. AYGM module does not come with the adapter plate. Figure 106: Removing the factory-installed adapter plate 98 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 7 Install the new module to the bracket by tightening the four screws to 0.8 Nm (7.1 inlb). Figure 107: Tightening the screws 8 Connect all cables to the front interface. 8.1 Tighten the grounding screw to 4.3 Nm (38.1 in-lb) Figure 108: Tightening the grounding cable screw 8.2 Issue 22. Connect the synchronization cable. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 99 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units NOTICE: FYGM connector guide pin and synchronization cable connector slot must be aligned carefully. Turn the cable connector tightening gland until there is resistance. The gland must not be loosened. Figure 109: Synchronization cable connector Note: For AYGM module simply plug in the 19PIN cable. Figure 110: Connecting the synchronization cable 8.3 100 Connect the RF cable and tighten it to 0.8 Nm (7.1 in-lb). © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 111: Tightening the RF cable 9 Insert the module into the subrack. Figure 112: Inserting the module 10 Tighten the two M4 flange nuts to 2.2 Nm (19.5 in-lb). Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 101 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 113: Tightening the nuts 6.4 Replacing Nokia AirScale System Module Outdoor AMOD submodules Information on replacing individual elements of Nokia AirScale AMOD subrack. There are currently two versions of AMOD: 102 and 203. The main differences that affect the replacing instructions are: Different inlet and outlet blower module housing Different rear cover Inlet air filter is now replaced from the front Instructions affected by these changes are divided into separate sections. Replacing instructions for PDU, heater and GNSS modules are the same for both versions. For additional information on installing AMOD, see Single RAN BTS Site Solutions/Nokia AirScale BTS/Installing Nokia AirScale System Modules/Nokia AirScale System Module — AMOD Installing and Cabling Manual. 102 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units 6.4.1 Replacing air filter for AMOD subrack (version 102) Air filter in AMOD version 102 is replaced from the rear. Purpose If the filter becomes clogged it must be replaced with a new one. An alarm is raised to inform the user about the replacement need. Before you start NOTICE: Air filter replacement is crucial for proper AMOD functioning. Always remember to: Inspect the cabinet to ensure there are no openings in the chassis that could lead to contamination. Ensure that AMOD air inlet and outlet are not blocked. Do not touch the air filter membrane. Do not bend or twist the filter. Visually inspect the new filter for any defects. Ensure the gasket is undamaged. Do not try to clean the filter as it is not designed for it. Note: Do not turn off the outlet blower during air filter replacement. Note: The rear cover of AMOD may come with an optional muffler. Graphics in this instruction include the muffler. Note: Clear any debris accumulated on top of the subrack before opening or closing the door. Equipment preconditions You need the following: Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 103 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Air filter (475210A) Torque screwdriver Torx bits T20, T25 Security torx bit T20 Soft cloth or brush Procedure 1 Open the front door using the key. Figure 114: Opening the front door 2 Unscrew the two M5 screws. Figure 115: Unscrewing the M5 screws. 3 Unscrew the two captive screws and slightly pull out the module so the fan stops rotating. 104 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 116: Pulling out the module 4 Unscrew the 24 captive screws and put the rear cover on top of the subrack. Note: The rear cover module is secured by a grounding cable. Figure 117: Removing the rear cover 5 Remove the service lid by unscrewing the three hex nuts and eight captive screws. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 105 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 118: Removing the lid 6 Unlock the two butterfly locks and lift up the fixing bracket. Figure 119: Lifting the bracket 106 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Note: Use the small hook to secure the fixing bracket. Figure 120: Bracket hook 7 Pull out the air filter. Figure 121: Pulling out the air filter 8 Remove the filter mat bracket from the old filter. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 107 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 122: Removing the bracket 9 Put the adhesive tape on the bracket. Figure 123: Fixing adhesive tape 10 108 Put the bracket on the new filter. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 124: Installing the bracket 11 Clean the filter installation surface using a soft cloth or brush. 12 Insert the new air filter. NOTICE: The air filter has a sticker with an arrow representing the airflow. Install the new filter so that the arrow is pointing in the right direction. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 109 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 125: Inserting the new air filter 13 Lower down the fixing bracket and lock the butterfly locks. Figure 126: Lowering the fixing bracket 14 Assemble the service lid by tightening the captive screws and hex nuts to 2.2 Nm (19.5 in-lb). 110 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 127: Assembling the service lid 15 Install the rear cover by fixing the 24 captive screws and then tightening them to 1.2 Nm (10.6 in-lb). Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 111 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 128: Tightening the captive screws 16 Insert the blower and tighten the two captive screws to 2.2 Nm (19.5 in-lb). Figure 129: Inserting the blower 112 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 17 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Tighten the two M5 screws to 4 Nm (35.4 in-lb). Figure 130: Tightening the M5 screws. 18 Press and hold the reset button on the PDU for at least two seconds. NOTICE: Monitor the LED status on the front panel of the PDU for three minutes to ensure there are no errors. If there are any, try reconnecting the cables. Figure 131: Resetting the PDU Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 113 19 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Close and lock the front door. Note: Before closing the door clean the dust off the door's gasket and edge. Figure 132: Closing the door 6.4.2 Replacing air filter for AMOD subrack (version 203) In AMOD version 203 air filter replacement is possible only from the front. Purpose If the filter becomes clogged it must be replaced with a new one. An alarm is raised to inform the user about the replacement need. The filter should not be replaced in advance, before the filter alarm is raised. Before you start NOTICE: Air filter replacement is crucial for proper AMOD functioning. Always remember to: Inspect the cabinet to ensure there are no openings in the chassis that could lead to dirt contamination of the AMOD interior. Ensure that AMOD air inlet and outlet are not blocked by anything. Do not touch the air filter membrane. Do not bend or twist the filter. Visually inspect the new filter for any defects. Ensure the gasket is undamaged. Do not try to clean the filter as it is not designed for it. 114 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Note: Clear any debris accumulated on top of the subrack before opening or closing the door. Equipment preconditions You need the following: Air filter (475210A) Torque screwdriver Torx bit T20 Flat-head screwdriver Key to the AMOD front door Side cutters Soft cloth or brush Procedure 1 Open the front door using the key. Figure 133: Opening the front door 2 Cut the cable tie binding the power cables together and move the cables aside. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 115 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 134: Removing the cable tie 3 Unscrew the M4 screw. Figure 135: Unscrewing the maintenance cover screw 4 116 Slide up and pull out the filter maintenance cover. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Tip: You can use a flat-head screwdriver and pry it for easier removal. Figure 136: Removing the cover 5 Pull out the blower support plate. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 117 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 137: Removing the support plate 6 Secure the filter maintenance cover and the support plate with a rope by attaching it to one of the handles. 118 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 138: Securing the cover and plate 7 Unscrew the two M4 screws and slightly pull out the inlet blower so the fan stops rotating. CAUTION! Risk of personal injury. Do not touch the fan blades when they are rotating. Note: It is possible to replace the air filter without completely removing the inlet blower module. In such case it only needs to be slightly pulled out so that the fan stops rotating. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 119 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 139: Slightly sliding out the inlet blower 8 Open the two buckle locks and remove the air filter with the fixing bracket. Tip: Filter might get stuck after working for a long time. Use a flat-head screwdriver to pry it open. Figure 140: Prying the air filter 120 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 141: Removing the air filter 9 Clean the filter installation surface using a soft cloth or brush. 10 Install the new air filter and close the two buckle locks. Note: Use the fixing bracket from the old filter. NOTICE: The air filter has a sticker with an arrow representing the airflow. Install the new filter so that the arrow is pointing up. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 121 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 142: Installing the new air filter 122 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units NOTICE: Use the mark lines on the cabinet to align the new air filter correctly. Figure 143: Aligning the air filter. 11 Install the blower module and tighten the two M4 screws to 2.2 Nm (19.5 in-lb). Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 123 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 144: Installing the inlet blower 12 Install the blower support plate. Figure 145: Installing the support plate 124 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units NOTICE: Make sure the support plate is installed properly. 13 Install the filter maintenance cover. Figure 146: Installing the maintenance cover 14 Tighten the M4 screw to 2.2 Nm (19.5 in-lb). Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 125 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 147: Tightening the maintenance cover screw 15 Use a cable tie to bind the power cables together. Figure 148: Binding the cables 16 126 Press and hold the reset button on the PDU for at least two seconds. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units NOTICE: Monitor the LED status on the front panel of the PDU for three minutes to ensure there are no errors. If there are any, try reconnecting the cables. Figure 149: Resetting the PDU 17 Close and lock the front door. Note: Before closing the door clean the dust from the door's gasket and edge. Also make sure that there are no cables touching the heater. Figure 150: Closing the door Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 127 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units 6.4.3 Replacing inlet blower for AMOD subrack (version 102) Replace faulty fans to avoid temperature rise. Purpose If the inlet blower fails or becomes degraded it must be replaced with a new one. Before you start CAUTION! Risk of personal injury Since the inlet blower is inside a casing there should be no risk of touching the blades. Nevertheless caution is advised. NOTICE: Replacing the fan assembly while the module is operational increases the heat and causes performance degradation of the module. NOTICE: Ensure that both blowers are running before leaving the site. Note: Clear any debris accumulated on top of the subrack before opening or closing the door. Note: The inlet blower module in AMOD version 102 has a different housing than in version 203. In version 102 you must replace the fan and keep the old housing. 128 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Equipment preconditions You need the following: Inlet blower module (091320A) Key to the AMOD front door Torque screwdriver Torx bit T20 Soft cloth or brush Procedure 1 Open the front door using the key. Figure 151: Opening the front door 2 Unscrew the two captive screws from the inlet blower module. Figure 152: Unscrewing the captive screws 3 Pull out the inlet blower module. Note: If power cables block the blower, move them aside first. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 129 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 153: Pulling out the module 4 Push the fan connector inside the housing in the old and new blower module. Figure 154: Pushing the connector inside 5 130 Remove the fan from the old and new module by unscrewing the nine screws. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 155: Removing the fan 6 Insert the new fan connector inside the old housing. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 131 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 156: Inserting the connector 7 Fix the new fan to the old housing by tightening the nine screws to 1 Nm (8.8 in-lb). NOTICE: Make sure you don't press any cable with the fan bracket. Figure 157: Installing the new fan 132 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 8 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Insert the blower module into the chassis. Figure 158: Inserting the module 9 Tighten the two captive screws to 2.2 Nm (19.5 in-lb). Figure 159: Tightening the captive screws 10 Press and hold the reset button on the PDU for at least two seconds. NOTICE: Monitor the LED status on the front panel of the PDU for three minutes to ensure there are no errors. If there are any, try reconnecting the cables. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 133 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 160: Resetting the PDU 11 Close and lock the front door. Note: Before closing the door clean the dust off the door's gasket and edge. Figure 161: Closing the door 6.4.4 Replacing inlet blower for AMOD subrack (version 203) Replace faulty fans to avoid temperature rise. 134 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Purpose If the inlet blower fails or becomes degraded it must be replaced with a new one. Before you start CAUTION! Risk of personal injury Since the inlet blower is inside a casing there should be no risk of touching the blades. Nevertheless caution is advised. NOTICE: Replacing the fan assembly while the module is operational increases the heat and causes performance degradation of the module. NOTICE: Ensure that both blowers are running before leaving the site. Note: Clear any debris accumulated on top of the subrack before opening or closing the door. Equipment preconditions You need the following: Inlet blower module (091320A) Key to the AMOD front door Torque screwdriver Torx bit T10, T20 Soft cloth or brush Side cutters Procedure 1 Open the front door using the key. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 135 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 162: Opening the front door 2 Cut the cable tie binding the power cables together and move the cables aside. Figure 163: Removing the cable tie 3 Unscrew the two captive screws from the inlet blower module. Figure 164: Unscrewing the captive screws 136 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 4 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Pull out the inlet blower module. Figure 165: Pulling out the module 5 Unscrew the four screws from the handle. Figure 166: Unscrewing the four screws 6 Assemble the handle on the new blower module and tighten the screws to 0.8 Nm (7.1 in-lb). Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 137 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 167: Tightening the screws 7 Insert the blower module into the chassis. Figure 168: Inserting the module 8 138 Tighten the two captive screws to 2.2 Nm (19.5 in-lb). © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 169: Tightening the captive screws 9 Use a cable tie to bind the power cables together. Figure 170: Binding the cables 10 Press and hold the reset button on the PDU for at least two seconds. NOTICE: Monitor the LED status on the front panel of the PDU for three minutes to ensure there are no errors. If there are any, try reconnecting the cables. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 139 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 171: Resetting the PDU 11 Close and lock the front door. Note: Before closing the door clean the dust off the door's gasket and edge. Figure 172: Closing the door 6.4.5 Replacing outlet blower for AMOD subrack (version 102) Replace faulty fans to avoid temperature rise. 140 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Purpose If the outlet blower fails or becomes degraded it must be replaced with a new one. Before you start NOTICE: Replacing the fan assembly while the module is operational increases the heat and causes performance degradation of the module. NOTICE: Ensure that both blowers are running before leaving the site. NOTICE: AMOD front door should be closed when replacing the outlet blower. Note: The rear cover or AMOD may come with an optional muffler. Graphics in this instruction include the muffler. Equipment preconditions You need the following: Outlet blower module (091320A) Torque screwdriver Torx bit T20 Security torx bit T20 Key to the AMOD front door Procedure 1 Unscrew the 24 captive screws and put the rear cover on top of the subrack. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 141 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Note: The rear cover module is secured by a grounding cable. Figure 173: Removing the rear cover 2 142 Unscrew the six captive screws, pull down and pull out the blower module. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 174: Unscrewing the captive screws 3 Push the fan connector inside the housing in the old and new blower module. Figure 175: Pushing the connector inside 4 Remove the fan from the old and new module by unscrewing the nine screws. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 143 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 176: Removing the fan 5 144 Insert the new fan connector inside the old housing. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 177: Inserting the connector 6 Fix the new fan to the old housing by tightening the nine screws to 1 Nm (8.8 in-lb). NOTICE: Make sure you don't press any cable with the fan bracket. Figure 178: Fixing the new fan Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 145 7 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Tighten the six captive screws to 2.2 Nm (19.5 in-lb). Figure 179: Tightening the captive screws Note: Make sure that the module is seated correctly by checking the marking on the bracket. Figure 180: Blower correct position marking 8 Install the rear cover by fixing the 24 captive screws and then tightening them to 1.2 Nm (10.6 in-lb). 146 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 181: Tightening the captive screws 9 Open the front door using the key. Figure 182: Opening the front door 10 Press and hold the reset button on the PDU for at least two seconds. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 147 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units NOTICE: Monitor the LED status on the front panel of the PDU for three minutes to ensure there are no errors. If there are any, try reconnecting the cables. Figure 183: Resetting the PDU 11 Close and lock the front door. Note: Before closing the door clean the dust off the door's gasket and edge. Figure 184: Closing the door 148 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units 6.4.6 Replacing outlet blower for AMOD subrack (version 203) Replace faulty fans to avoid temperature rise. Purpose If the outlet blower fails or becomes degraded it must be replaced with a new one. Before you start NOTICE: Replacing the fan assembly while the module is operational increases the heat and causes performance degradation of the module. NOTICE: Ensure that both blowers are running before leaving the site. NOTICE: AMOD front door has to be closed when replacing the outlet blower. Note: The rear cover or AMOD may come with an optional muffler. Graphics in this instruction include the muffler. Note: Clear any debris accumulated on top of the subrack before opening or closing the door. Equipment preconditions You need the following: Outlet blower module (091320A) Torque screwdriver Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 149 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Torx bit T20 Key to the AMOD front door Rope or a maintenance strap Procedure 1 Unscrew the 12 captive screws and remove the muffler. Figure 185: Removing the muffler 2 Secure the muffler by placing it on top of AMOD or hanging on one of the handles using a rope or a maintenance strap. 3 150 Unlock and open the rear cover. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 186: Opening the cover 4 Move the cover to the right to release the hinges. Figure 187: Removing the hinges 5 Put the rear cover on top of the subrack. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 151 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 188: Placing the rear cover 6 152 Unscrew the six captive screws, pull down and remove the blower module. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 189: Unscrewing the captive screws 7 Install the new module and tighten the six captive screws to 2.2 Nm (19.5 in-lb). Figure 190: Tightening the captive screws 8 Install the rear cover on the hinges. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 153 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 191: Fixing the hinges 9 Close and lock the cover with four latches. Figure 192: Closing the cover 10 154 Install the muffler by tightening the 12 captive screws to 2.2 Nm (19.4 in-lb). © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 193: Installing the muffler Postrequisites NOTICE: Monitor the LED status on the front panel of the PDU for three minutes to ensure there are no errors. If there are any, try reconnecting the cables. 6.4.6.1 Replacing outlet blower for AMOD subrack (version 203) installed inside FCOA If AMOD is installed inside FCOA it has to be pulled out first to access the rear side. Purpose If the outlet blower fails or becomes degraded it must be replaced with a new one. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 155 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Before you start NOTICE: Replacing the fan assembly while the module is operational increases the heat and causes performance degradation of the module. NOTICE: AMOD front door has to be closed when replacing the outlet blower. Equipment preconditions You need the following: Outlet blower module (091320A) Torque screwdriver Torx bit T20, T25 AMOD key A block to support AMOD after pulling it out (minimum 130 mm (5.1 in.) height) Side cutters Procedure 1 156 Remove the two brackets. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 194: AMOD three brackets 1.1 Unscrew the two M5 screws from the top left bracket. Figure 195: Unscrewing the top left bracket Note: This bracket does not need to be completely removed. Only unscrew the two screws that connect the bracket to AMOD. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 157 1.2 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Unscrew the five M5 screws from the side bracket. Figure 196: Removing the side bracket 2 Carefully pull out AMOD from FCOA and put it on a support. NOTICE: Prepare a wooden block or other tool to support AMOD's weight after pulling it out from FCOA. NOTICE: Before pulling AMOD out make sure that cables are long enough for this operation. Be careful not to damage any cables. 158 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 197: Pulling AMOD out 3 Remove the rear bracket by unscrewing the 12 M4 screws. Figure 198: Removing the rear bracket 4 Unlock and open the rear cover using AMOD key. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 159 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 199: Opening the rear cover 5 Move the cover to the right to release the hinges. Figure 200: Removing the hinges 6 160 Put the rear cover on top of the subrack. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 201: Placing the rear cover 7 Unscrew the six captive screws, pull down and remove the blower module. Figure 202: Unscrewing the captive screws 8 Install the new module and tighten the six captive screws to 2.2 Nm (19.5 in-lb). Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 161 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 203: Tightening the captive screws 9 Install the rear cover on the hinges. Figure 204: Fixing the hinges 10 162 Closing the rear cover. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 205: Closing the rear cover 11 Fix the rear bracket by tightening the 12 M4 screws to 2.2 Nm (19.5 in-lb). Figure 206: Tightening the rear bracket screws 12 Put AMOD inside FCOA. NOTICE: Be careful not to damage any cables. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 163 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 207: Inserting AMOD 13 Fix the two brackets. 13.1 Tighten the two M5 top left bracket screws to 4.3 Nm (38 in-lb). Figure 208: Fixing the top left bracket 13.2 Tighten the five M5 side bracket screws to 4.3 Nm (38 in-lb). 164 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 209: Fixing the side bracket 14 Route all cables as they were before pulling AMOD out of FCOA to avoid damaging them when closing the cabinet front door. Postrequisites NOTICE: Ensure that both blowers are running before leaving the site. 6.4.7 Replacing PDU (Power Distribution Unit) for AMOD subrack If the PDU fails, replace it with a new one. Purpose If the PDU fails or becomes degraded it must be replaced with a new one. Before you start Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 165 CAUTION! Risk of personal injury Switch off the DC power breaker before you start. NOTICE: Electrostatic Discharge (ESD) can damage the plug-in units. Wear an ESD wrist strap or use a corresponding method when handling the plug-in units. NOTICE: Perform a commissioning file backup and switch off the BTS before performing this procedure. Note: Clear any debris accumulated on top of the subrack before opening or closing the door. Equipment preconditions You need the following: PDU (091112A) Key to the AMOD front door 8 mm socket wrench Torque screwdriver Torx bit T20 Procedure 1 Disconnect the DC mains power breaker. 2 Open the front door using the key. 166 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 210: Opening the door 3 Disconnect all cables from the front interface in left to right direction. NOTICE: Because it is necessary to power down the unit for a PDU replacement, first disconnect the DC connector, then proceed with other cables. Figure 211: Disconnecting the cables 4 Unscrew the nut and detach the PDU grounding cable. Figure 212: Unscrewing the grounding cable Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 167 5 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Unscrew the two captive screws. Figure 213: Unscrewing the screws 6 Use the handle to pull out the PDU. Figure 214: Pulling out the PDU 7 Insert the new PDU. Figure 215: Inserting the PDU 8 168 Tighten the two captive screws to 2.2 Nm (19.5 in-lb). © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 216: Tightening the screws 9 Fix the grounding cable and tighten the nut to 4.3 Nm (38.1 in-lb). Figure 217: Connecting the grounding cable 10 Connect all cables from the front interface in left to right direction. Figure 218: Connecting the cables 11 Power up AMOD and monitor the LED status on the front panel of the PDU for two minutes to ensure there are no errors. 12 Close the front door. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 169 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Note: Before closing the door clean the dust off the door's gasket and edge. Figure 219: Closing the door 6.4.8 Replacing heater for AMOD subrack If the heater fails, replace it with a new one. Purpose If the heater fails or becomes degraded it must be replaced with a new one. Before you start CAUTION! Risk of personal injury Surface of the heater might be hot. Do not remove the heater until it is cool. NOTICE: Electrostatic Discharge (ESD) can damage the plug-in units. Wear an ESD wrist strap or use a corresponding method when handling the plug-in units. Note: Both heater and the heater fan must be replaced at the same time. 170 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Note: Clear any debris accumulated on top of the subrack before opening or closing the door. Equipment preconditions You need the following: Heater module (091109A) Key to the AMOD front door Side cutters Cable ties 7 mm socket wrench Procedure 1 Open the front door. Figure 220: Opening the front door 2 Disconnect the cables from the PDU and cut the cable ties. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 171 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 221: Disconnecting the heater cables 3 Unscrew the three nuts and remove the heater module. Figure 222: Removing the heater 4 172 Fix the new heater module in place and tighten the three nuts to 2.2 Nm (19.5 in-lb). © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 223: Fixing the module 5 Plug in the connectors to the PDU and tie them with cable ties. Figure 224: Connecting the cables 6 Press and hold the reset button on the PDU for at least two seconds. NOTICE: Monitor the LED status on the front panel of the PDU for three minutes to ensure there are no errors. If there are any, try reconnecting the cables. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 173 NOTICE: After a PDU reset or power up, the LED status for heater should stay green for three minutes and then turn off. 7 Close the front door. Note: Before closing the door clean the dust off the door's gasket and edge. Figure 225: Closing the door 6.4.9 Replacing GNSS module for AMOD subrack Information on how to replace FYGM/AYGM module in AMOD subrack. Before you start NOTICE: Electrostatic discharge (ESD) can damage the plug-in units. Wear an ESD wrist strap or use a corresponding method when handling the hardware units. Note: Clear any debris accumulated on top of the subrack before opening or closing the door. 174 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Note: This instruction shows FYGM as an example, but is the same for both FYGM and AYGM modules. Figure 226: FYGM and AYGM Equipment preconditions You need the following: FYGM/AYGM GNSS Receiver (473394A/475705A) Key to the AMOD front door Torque screwdriver Torx bit T10, T20, T25 Torque wrench 8 mm open end crowfoot wrench Procedure 1 Open the front door using the key. Figure 227: Opening the door 2 Disconnect all cables from the front interface. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 175 2.1 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Unscrew and disconnect the RF cable. Figure 228: Disconnecting the RF cable 2.2 Unscrew and disconnect the synchronization cable. Note: For AYGM module simply pull out the cable. Figure 229: Disconnecting the synchronization cable 2.3 176 Unscrew and disconnect the grounding cable. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 230: Disconnecting the grounding cable 3 Unscrew the two screws. Figure 231: Unscrewing the screws 4 Pull out the GNSS module. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 177 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 232: Pulling out the module 5 Remove the faulty module from the bracket by unscrewing the four screws. Figure 233: Unscrewing the screws 6 Unscrew the four screws to remove the factory-installed adapter plate from the new module. 178 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Note: This step is valid for FYGM only. AYGM module does not come with the adapter plate. Figure 234: Removing the factory-installed adapter plate 7 Install the new module to the bracket and tighten the four screws to 0.8 Nm (7.1 inlb). Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 179 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 235: Fixing the new GNSS 8 Insert the module into the subrack. Figure 236: Inserting the module 9 180 Tighten the two screws to 2.2 Nm (19.5 in-lb). © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 237: Tightening the screws 10 Connect all cables to the front interface. 10.1 Fix and tighten the grounding screw to 4.3 Nm (38.1 in-lb). Figure 238: Tightening the grounding screw 10.2 Connect the synchronization cable. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 181 NOTICE: FYGM connector guide pin and synchronization cable connector slot must be aligned carefully. Turn the cable connector tightening gland until there is resistance. The gland must not be loosened. Figure 239: Synchronization cable connector Note: For AYGM module simply plug in the cable. Figure 240: Connecting the synchronization cable 10.3 Connect the RF cable and tighten it to 0.8 Nm (7.1 in-lb). 182 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 241: Tightening the RF cable 11 Close the front door. Note: Before closing the door clean the dust off the door gasket and edge. Figure 242: Closing the door Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 183 7. Hardware replacement and/or upgrade Information about faulty hardware impact on license files and a pool substitute process. License files are tied to certain target identifiers of network elements. Broken Hardware (HW) might have an impact on the license files, depending on whether the unit stores the license files or the target identifier of the network element: If a unit that does not store the license files and does not contain the target identifier of the network element is swapped, there is no impact on the licenses. If a unit that stores the license files is swapped, copies of the old license files must be redistributed to the network element. If a unit that contains the target identifier of the network element is swapped, new license files must be created and distributed to the network element. The old licenses are not needed anymore and can be released back to the pool by using the pool substitute process. License pools must always be available so that new license files can be delivered to the network element immediately when HW has been replaced. Pool substitute process Pool substitute process releases the license files that were tied to a broken target identifier back to the pool for further usage. Changing a transmission submodule does not affect licensing. If the system module is broken, perform the pool substitute process. It includes the following steps: 1. Pool Substitute Request File including a reason code is generated by using the NetActTM Network License Manager application. 2. Substitute Request File is imported to the Nokia License Generator. 3. Pool Substitute Permission File is created with the Nokia License Generator. 4. Pool Substitute Permission File is imported to the NetActTM Cluster of the broken HW. 5. Licenses related to the broken HW are released. The same substitute processes are also applied in case of a typing error in target identifier information in NetActTM (that is, when a wrong target for the license is selected). The broken HW and error cases are separated by reason codes in the NetActTM Network License Manager application as well as in the files that are generated in the NetActTM Regional Cluster and delivered to License Generator. 184 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units 8. Returning faulty units Packaging and handling principles for returning faulty units. This section describes the general packing/shipping principles that you need to follow when sending units for repair. The purpose of these instructions is to avoid transportation damages, which easily occur with wrongly packed units. A minor problem with the unit packaging can lead to a major damage and an expensive repair, or warranty voidance. See the respective chapter in this document for more information on how to remove and replace the faulty unit. 8.1 How to handle units properly Take extreme care when handling Nokia units without the Nokia supplied package. Tip: Nokia packaging materials are re-usable and can be stored for returning faulty units. Handling the units Keep equipment in a Nokia-supplied package during storage and transportation at all times and only remove equipment from its packing right before installation or replacement. This reduces the risk of damage by mechanical or environmental factors and maintains traceability of the product and its accessories. Re-pack the faulty unit immediately to a Nokia replacement product packing with care to protect it from further damage from environmental and mechanical factors. Follow these principles: Electrostatic discharge (ESD) can damage the units with an open PCB. Wear an ESD wrist strap or use a corresponding method when handling the plug-in units. Wear suitable gloves to ensure a good grip when handling products. Ensure dry and clean conditions before handling units with an open PCB. Always put units with an open PCB in an ESD plastic package directly after their removal. If possible, use a handle to carry the unit. Units without a handle should be handled with extra care and any moving or carrying should always be done using both hands. Do not place the unit with the fan assembly resting on the ground and/or supporting the unit's weight. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 185 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Always carefully lay down the unit on its even side, never directly on a wet or dirty surface (use unit packing or suitable cover). Figure 243: Wrong handling of the unit Figure 244: Placing the unit on the ground on its even side 186 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 245: Putting the unit in an ESD-compliant plastic packing 8.2 Hardware items to be removed prior to shipping a unit for repair A list of parts you need to remove prior to shipping a unit for repair. Tip: Always compare the new unit with the faulty one to make sure what needs to be returned and what not. NOTICE: Ensure dry and clean conditions before handling units with an open PCB. Handle Cover/enclosure (for example AMIA, EMHA) Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 187 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Mounting brackets (for example FPKA/FPKC) Cable strain relief bracket Fan assembly (for example ASFA, ASFC) Optical transceivers (SFPs, QSFPs) 8.3 Packing the faulty unit Pack the faulty unit into the box in which the spare unit arrived. Before you start See the respective chapter in this document for more information on how to remove and replace the faulty unit. Procedure 1 Disassemble the faulty unit and carefully place it on a dry and clean surface. 2 Take the new unit out of the box. 3 Install the new unit. 4 Pack the faulty unit into the box. NOTICE: Insert rubber seals or plastic dust plugs into empty interface ports of the unit you are returning. 8.4 Recommended packing materials Use the recommended packing material to avoid unit damage. 188 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Table 4: Recommended packing material Straps • 16 x 0.8 mm PET strap, green • 15.5 x 0.58 mm PET strap, green • 12 x 0.55 mm PP strap, white Package Tapes Filling material Wrapping material • Single delivery package • Nokia unit package • Heavy duty box • 100 mm (4 in.) wide paper tape • 75 mm (3 in.) wide paper tape • 50 mm (2 in.) wide clear tape • Bubble film • Air pad film • Air cushion • Packing foam • Kraft paper • Stretch foil • ESD bags 8.5 General packing guidelines Follow these guidelines to avoid transportation damages. Packing labels To return a unit, use Nokia single delivery package, if available, with the correct return documents. Labels on Nokia boxes provide guidance on packing and shipping the unit. Unit boxes with ATTENTION!!! warning labels must always be packed into additional shipping boxes or shipped in a container/on a pallet. Figure 246: ATTENTION!!! warning labels variants You can ship unit boxes with DELIVERY BOX labels without any extra packaging or pallet. Figure 247: Delivery box label Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 189 Note: Take extreme care when returning a Nokia unit in a packaging not supplied by Nokia. Single delivery package Usage of single delivery package is the most preferred option. Single delivery package can be shipped without any extra overpack or pallet. Primary source for a single delivery package is the package in which a spare unit arrived. Alternatively, you can source packages separately from Nokia packaging suppliers. Figure 248: Using spare part packaging to return faulty units Units with an open printed circuit board (PCB) must be protected against electrostatic shocks. Use ESD-compliant plastic packing over the bare units and do the packing in ESDsafe environment. Consult your ESD coordinator. 190 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 249: Packing units with an open PCB Nokia unit package The second best option, if a single delivery package is not available, is to use a Nokia unit package. Unit boxes with ATTENTION!!! warning labels must always be packed into additional shipping boxes or shipped in a container/on a pallet. Place the unit package into a shipping box and use cushioning for protection. Package cushioning must cover all sides of the unit package. NOTICE: Remember to use at least 5 cm (2 in.) of cushioning material at the bottom, sides and top. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 191 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 250: Correct procedure for packing a shipping box WARNING! Risk unit damage Do not place units directly on the bottom of the shipping box with only some protecting material filling the rest of space. Figure 251: Example of a wrongly packed shipping box 192 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Heavy duty boxes Third and least favorable option is to pack the unit in a heavy duty box with sufficient protection. Use this method only when the first two options are unavailable. NOTICE: Remember to use at least 5 cm (2 in.) of cushioning material at the bottom, sides and top. Figure 252: Correct procedure of packing a heavy duty box Figure 253: Example of a wrongly-packed heavy duty box Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 193 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Examples of transportation damage Figure 254: Flexi Multiradio RF module damaged during transportation Figure 255: Flexi Multiradio system module damaged during transportation Figure 256: AirScale system module PCB damaged because of misuse 194 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 257: AirScale remote radio head bracket damaged because of misuse 8.6 How to load units into a container Good quality wooden, plywood or corrugated containers are recommended. For larger or heavier shipments, using containers for packing several units into one shipment provides the best protection possible. Secure the units to prevent any unwanted movement inside the container. Use only one type of filling material for each container. NOTICE: Each unit must be packed separately, also for consolidated container shipments. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 195 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 258: Container for larger shipments WARNING! Risk unit damage Do not pack units directly into a container without separate unit packages. Figure 259: Example of a wrongly-packed container 8.7 How to load units onto a pallet Palletized loads are preferred for heavy boxes, but for smaller items you should use containers. You can use any pallet size as long as the units are securely placed on the pallet and the pallet can being moved by a pallet truck. 196 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 NOTICE: The load must sit straight and be secured well to ensure stability. Securing with stretch film binds the load and protects it against dirt and rain. The recommended maximum height for a pallet shipment is 1.6 m (5.24 ft). Stack items in a uniform way; heavier items on lower levels, light/small items on top. Do not leave any units overhanging or misaligned. Figure 260: Example of a correctly-loaded pallet Figure 261: Example of a wrongly -oaded pallet Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 197 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units 9. Appendix A: Optical cable and SFP or QSFP cleaning Basic optical cables, SFPs, and QSFPs cleaning methods and tools Preparation Optical cable ends and transceivers are susceptible to dirt during transportation, storage, or handling. As a result, they can stop functioning correctly. Dirty optical cable ends or transceivers have an impact on the service quality of Nokia products. That is why it is important to maintain them properly. Nokia optical cable ends and transceivers are always pre-cleaned and protected with dust caps to minimize any risks. NOTICE: You should always clean optical cables and transceivers prior to inserting and reinserting, as you cannot confirm the cleanliness of a 125 µm diameter glass ferrule after the visual inspection with the naked eye. Tip: Remove dust caps from the optical cable end and transceiver only prior to cleaning and connecting. Tip: Make sure that the cable ends do not come into contact with anything else besides cleaning equipment before they are connected. For more information, see Dry and wet cleaning. 198 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 262: Example of fiber contamination Figure 263: Example of SFP contamination Fault detection You can determine the condition of optical cables and transceivers (SFP, SFP+, or QSFP) through visual inspection or by analyzing the cable loss. To complete fiber testing, check the condition of the cable and transceiver and clean them properly. You can use the following tools to inspect fibers and transceivers. Figure 264: Fiber testing tools Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 199 WARNING! Risk of eye damage! Do not look directly into a fiber-optic transceiver or into the ends of fiber-optic cables. Fiber-optic transceivers and fiber-optic cables connected to transceivers emit laser light that can damage your eyes. Always cover open fibers or fiber sockets with protective caps. Never look inside the fiber or the fiber sockets. For inspection of fiber ends or fiber sockets always use a special camera. Never use a magnifying glass for inspection. The wavelength of the emitted light might be invisible to your eyes. Treat every open fiber as an illuminated one, until you confirm it does not emit any light. NOTICE: Do not bend fiber-optic cables below their minimum bend radius that should not be less than ten times the outer diameter (OD) of the fiber cable (example: 5 mm (0.2 in.) diameter cable should never be bent beyond 50 mm (2 in.) bending radius). Bending the cables below their minimum bend radius can damage the cables and cause problems that are difficult to diagnose – it will increase optical insertion loss and affect Nokia products service quality. Note: If a cable does not work at the first try, inspect the cable using a light source and a power meter. For more information on testing procedures, see the following industry standards: ANSI / EIA / TIA-568-C.0 ISO / IEC 14763-3 IEC / EN 61300-3-35 ITU-TG.650.3 EN 50346 Dry and wet cleaning There are two cleaning methods: dry and wet cleaning. For types of equipment needed for 200 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units both types of cleaning, see the following table. Table 5: Cleaning methods Cleaning type Equipment Fiber SFP/QSFP Dry cleaning Reel-based cassette cleaner Yes No Pen-style cleaners Yes Yes Compressed air No Yes* Cleaning wipes Yes No Cleaning sticks Yes Yes Cleaning agent Yes No Wet cleaning * Compressed air is not a recommended method for the first try. Use it only when other methods fail and always use product suitable for the purpose to ensure air supply cleanliness. Note: Use dry cleaning methods for regular cleaning of the cables. Use wet cleaning methods if multiple dry cleaning attempts failed to clear the issue. NOTICE: After using any wet cleaning equipment, immediately clean again ferrule ends with dry cleaning equipment. Note: Cleaning tools can vary between the manufacturers. Always refer to the specific tool manual. When fibers, connectors, or transceivers fail the inspection, they should be cleaned in sequence shown in Figure: Optical cable cleaning diagram or Figure: SFP or QSFP cleaning diagram. Inspect the connector again, and make the connection when the plug passes inspection. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 201 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 265: Basic cleaning and mating rule Optical cable cleaning 202 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 266: Optical cable cleaning diagram Note: The following instructions are exemplary only. Always refer to the instructions provided by the manufacturer of the specific tool. Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 203 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 267: Dry cable cleaning with a cleaning pen Figure 268: Dry cable cleaning with a reel-based cartridge tool Figure 269: Wet cable cleaning with a cleaning stick 204 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 270: Wet cable cleaning with a wipe SFP and QSFP cleaning Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 205 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 271: SFP or QSFP cleaning diagram Note: The following instructions are exemplary only. Always refer to the instructions provided by the manufacturer of the specific tool. Note: For more information on cleaning connectors, adaptors, or receptacles, see technical report IEC TR 62627-01. 206 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 272: Transceiver cleaning with a cleaning pen Figure 273: Transceiver cleaning with a dry cleaning stick Figure 274: Transceiver cleaning with a wet cleaning stick Issue 22. © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. 207 Copyrighted material licensed to pepenal.foutou@cg.airtel.com on 20-04-2023. No further reproduction or networking is permitted. Distributed by Nokia. Replacing Nokia AirScale System Module Units Figure 275: Transceiver cleaning with compressed air 208 © 2023 Nokia. Nokia Confidential Information Use subject to agreed restrictions on disclosure and use. Issue 22
