Attachment A Telecommunications Design Manual Revision 14 July 5, 2011 Columbus State University Telecommunications Design Manual July 5, 2011 Table of Contents 1 GENERAL __________________________________________________ 5 1.1 Introduction ___________________________________________________ 5 1.2 Design Manual Scope ___________________________________________ 5 1.3 Purpose of This Manual _________________________________________ 6 1.4 Designer and Installer Qualifications ______________________________ 6 1.4.1 1.4.2 1.4.3 1.4.4 1.4.5 1.4.6 Telecommunications Designer __________________________________________ 6 Telecommunications Installer ___________________________________________ 6 Overall Quality Assurance _____________________________________________ 6 Submittals and Document Review _______________________________________ 7 Project Record Documents _____________________________________________ 7 Post Construction Warranties and Other Requirements ______________________ 7 1.5 Designer and Installer Selection __________________________________ 7 1.6 The Role of University Information and Technology Services (UITS) ____ 7 1.7 Project Management ____________________________________________ 8 1.7.1 1.7.2 1.7.3 2 Construction/Renovation Projects _______________________________________ 8 Telecommunications Projects ___________________________________________ 8 Deliverables ________________________________________________________ 8 INTRABUILDING DESIGN ELEMENTS ___________________________ 9 2.1 Data Closets ___________________________________________________ 9 2.1.1 2.1.2 2.1.3 2.1.4 2.1.5 2.1.6 2.1.7 2.1.8 2.1.9 2.1.10 2.1.11 2.1.12 2.1.13 2.1.14 2.1.15 2.1.16 2.1.17 2.1.18 2.1.19 2.1.20 2.2 2.2.1 2.2.2 2.2.3 Entrance Pathways ___________________________________________________ 9 Location ___________________________________________________________ 9 Size _______________________________________________________________ 9 Layout ____________________________________________________________ 10 Provisioning _______________________________________________________ 10 Flooring ___________________________________________________________ 10 Ceilings ___________________________________________________________ 10 Lighting ___________________________________________________________ 10 Entrance Door ______________________________________________________ 10 Interior Finishes __________________________________________________ 10 Water Infiltration __________________________________________________ 10 Electromagnetic Interference ________________________________________ 11 Vibration ________________________________________________________ 11 Fire Suppression Sprinklers _________________________________________ 11 Auxiliary Fire Extinguishers _________________________________________ 11 Environmental Conditioning _________________________________________ 11 Rack Systems ____________________________________________________ 12 Electrical Power __________________________________________________ 12 Uninterruptible Power Supplies ______________________________________ 12 Equipment Grounding ______________________________________________ 13 Other Telecommunications Spaces _______________________________ 13 Audio/Video Equipment Rooms/Spaces__________________________________ 13 Computer Rooms ___________________________________________________ 13 Shallow Telecommunications Rooms ____________________________________ 13 2.3 Backbone Pathways ___________________________________________ 13 2.4 Horizontal Pathways ___________________________________________ 14 2 Columbus State University Telecommunications Design Manual July 5, 2011 2.4.1 2.4.2 2.4.3 2.4.4 2.4.5 2.4.6 2.5 2.5.1 2.5.2 2.5.3 2.5.4 2.6 2.6.1 2.6.2 2.6.3 2.6.4 2.6.5 2.6.6 2.6.7 2.7 2.7.1 2.7.2 2.8 2.8.1 3 Intra-building Backbone Cabling _________________________________ 17 Backbone Cabling to Support Voice Systems _____________________________ 17 Backbone Cabling to Support Data Systems ______________________________ 17 Backbone Cabling to Support Video/CATV _______________________________ 17 Backbone Cabling to Support Other Low Voltage Systems ___________________ 18 Horizontal Cabling _____________________________________________ 18 General ___________________________________________________________ 18 Horizontal Distribution Cabling to Support Voice or Data _____________________ 18 Horizontal cabling to support Video/CATV ________________________________ 18 Cabling to Support Other Low Voltage Systems ___________________________ 18 Removal of Abandoned cables _________________________________________ 18 Work Area Outlet Configurations _______________________________________ 19 Grounding, Bonding, and Electrical Protection _____________________________ 19 Administration and Labeling ____________________________________ 19 As-built Drawings ___________________________________________________ 20 Labeling and Color Coding ____________________________________________ 20 Design Recommendations for Wireless Systems ___________________ 21 Horizontal Cabling Design Considerations for Wireless LANs _________________ 21 OUTSIDE PLANT DESIGN ELEMENTS __________________________ 22 3.1 3.1.1 3.1.2 3.2 3.2.1 3.2.2 3.2.3 3.3 3.3.1 3.3.2 3.4 3.4.1 3.4.2 3.4.3 3.4.4 3.4.5 4 Conduit Systems____________________________________________________ 14 Cable Tray ________________________________________________________ 14 Conduit ___________________________________________________________ 14 Outlet Boxes, Junction Boxes, and Pull Boxes ____________________________ 15 In-floor Systems ____________________________________________________ 16 Modular Furniture Raceway/ Furniture Pathways and Spaces ________________ 16 Cable ________________________________________________________ 22 Abandoned Cables __________________________________________________ 22 Cable Types Allowed ________________________________________________ 22 Safety Issues _________________________________________________ 22 General ___________________________________________________________ 22 Trenching and Excavation ____________________________________________ 22 Confined Spaces ___________________________________________________ 23 Service Entrance Conduit _______________________________________ 23 General ___________________________________________________________ 23 Allowable Conduit Types _____________________________________________ 23 Maintenance Holes, Handholes and Vaults_________________________ 23 Maintenance Holes and Vaults _________________________________________ 23 Telecommunications Handholes _______________________________________ 24 Cables and Labeling _________________________________________________ 25 Underground Conduit ________________________________________________ 25 Aerial Distribution ___________________________________________________ 26 MATERIALS LIST ___________________________________________ 28 4.1 Inside Plant Horizontal Cable ____________________________________ 28 4.2 Inside Plant Backbone Cable ____________________________________ 28 4.3 Workstation Outlets____________________________________________ 30 4.4 Wiring Closet _________________________________________________ 30 3 Columbus State University Telecommunications Design Manual July 5, 2011 4.4.1 4.4.2 4.4.3 4.4.4 Patch Panels _______________________________________________________ 30 Patch Cords _______________________________________________________ 30 Cable Management _________________________________________________ 32 Rack Systems ______________________________________________________ 33 4.5 Outside Plant Cable ____________________________________________ 34 4.6 Active Components ____________________________________________ 36 4.6.1 4.6.2 Data Switches ______________________________________________________ 36 Uninterruptible Power Supply: _________________________________________ 36 APPENDIX A- Glossary _________________________________________ 38 4 Columbus State University Telecommunications Design Manual July 5, 2011 1 GENERAL 1.1 Introduction This manual is written to provide information regarding the telecommunications standards adopted by Columbus State University (CSU). University Information and Technology Services (UITS) is the institutional department responsible for all campus telecommunications. This manual is based upon the most current available literature, codes, standards and industry accepted practice available at the time of publication. This is a living document that has as its basis the State of Georgia Telecommunications Design Manual A properly designed and constructed telecommunications system should be adaptable to change over the life of the building. The criteria contained within this manual are subject to revisions and updates due to technological advances within the telecommunications industry. Telecommunications has a financial impact on all construction and renovation of CSU buildings. It is expensive and time-consuming to continually change cabling systems to support different network configurations, computer systems and the relocation of employees. Therefore, it is very important that the design and construction of new or renovated buildings effectively avoids obsolescence. National and international standards organizations have developed standards for the various elements of telecommunications cabling systems. CSU’s implementation of these standards will ensure a flexible, uniform telecommunications environment and: 1.2 Provide telecommunications architecture based on recognized standards to support efficient, long-lasting, cost-effective operations. Reduce the amount of time required to install new networks or to reconfigure existing local area networks. Provide the flexibility to operate multiple high bandwidth technologies on a single structured cabling system. Eliminate the cost of installing non-standard, proprietary, vendor-specific cabling by providing standards-based cabling systems that will support a wide variety of equipment. Improve network manageability and facilitate automated cabling system management through the use of uniform and industry standard identification and numbering schemes. Allow for the growth of anticipated high speed, high bandwidth Local Area Networks (LANs), Metropolitan Area Networks (MANs) and Wide Area Networks (WANs) that may be required by future specialized applications. Design Manual Scope This manual is intended to provide telecommunications design and installation information for all new buildings and renovations owned by CSU and/or Foundation Properties. This manual should also be used for all outside plant projects that include telecommunications and all inside cable retrofitting or re-cabling unless there is a strong business case for not doing so. 5 Columbus State University Telecommunications Design Manual July 5, 2011 This manual should be considered a starting point for all telecommunication projects or projects that include telecommunications. Any CSU requirements that differ from this manual will be clearly communicated in the given project’s Statement of Work. Existing data closets or other telecommunications components that are found to be inadequate with respect to this manual must be retrofitted as part of the surrounding renovation project. 1.3 Purpose of This Manual Effective telecommunications and networking cannot be accomplished without adherence to standards. Additionally, cabling infrastructure costs cannot be contained without adherence to sound installation and management practices. The purpose of this manual is to ensure that the future telecommunications and connectivity needs of Columbus State University are met in a cost-effective manner and in accordance with ANSI/ANSI/TIA/EIA and IEEE standards for telecommunications. 1.4 Designer and Installer Qualifications 1.4.1 Telecommunications Designer The telecommunications design firm should have a Building Industry Consulting Services International (BICSI) Registered Communications Distribution Designer (RCDD) on staff or available for consultation. In most circumstances, all drawings and specifications should be reviewed by the design firm’s RCDD and carry the RCDD stamp of approval. 1.4.2 Telecommunications Installer The telecommunications installation contractor must be licensed in the State of Georgia as a Telecommunications Class or Unrestricted Class Low-Voltage Contractor (LVL). The installation of all cable, equipment, terminations and associated services should be performed by a company that is currently a Manufacturer’s Certified Structured Cabling System installer in good standing with minimum of (5) years of experience on similar systems. The installation company should have an RCDD on staff performing the role of Project Manager and be available for consultation and to attend project meetings. A BICSI certified installer should be employed by the contractor and be on site as the installation manager. 1.4.3 Overall Quality Assurance The designer should design in accordance with the latest revision of the BICSI Telecommunications Distributions Methods Manual and ANSI/ANSI/TIA/EIA standards. The Licensed Low Voltage Telecommunications Contractor (LVLTC) should install work in accordance with the BICSI Cabling Installation Manual. Periodic inspections will be part of the quality assurance. 6 Columbus State University Telecommunications Design Manual July 5, 2011 1.4.4 Submittals and Document Review Before installation of any cable or support equipment the designer will submit shop drawings and product data for review and approval by the CSU Construction Manager and UITS. The drawings must indicate installation details, cable routing, system configuration, and outlet numbering. 1.4.5 Project Record Documents Prior to acceptance, the installer shall submit to the owner three copies of a complete, bound project record manual consisting of the following: Test reports for horizontal cabling Test reports for backbone cabling Manufacturer’s warranties 14”x24” As-built drawings that include both inside and outside plant Project record documents shall be provided in both a hard copy binder and a soft copy on CD capable of being viewed and edited in AutoCAD. As-built drawings will include building and floor layouts with outlet locations and outlet labeling, main and intermediate distribution frame locations, cable routes, interconnect locations, riser locations, a table or chart showing all labeling, and all other information pertinent to the installation. CSU will retain ownership of the editable AutoCAD files. 1.4.6 Post Construction Warranties and Other Requirements The installer shall furnish a manufacturer’s warranty of products, applications and workmanship for 25 years from the date of acceptance by CSU. Any defects which may occur as the result of faulty materials or workmanship shall be promptly corrected by the installer at no additional cost to CSU. The installer should obtain and submit materials warranties to CSU to the extent such warranties are reasonably obtainable. 1.5 Designer and Installer Selection The designer and installer selection process differs based on the nature of the project. The construction or renovation project manager is responsible for selection on projects that involve telecommunications as part of the larger project. However, the UITS project manager is responsible for selection on pure telecommunications projects or projects that originate in UITS. 1.6 The Role of University Information and Technology Services (UITS) The designer is reminded that CSU is the owner of all property and completed projects, unless otherwise specified in the project. UITS is responsible for all telecommunications systems in all CSU owned or leased buildings and as such will provide input to the design and implementation of the telecommunications infrastructure. UITS will provide final approval for all telecommunications projects and the telecommunications segment of construction or 7 Columbus State University Telecommunications Design Manual July 5, 2011 renovation projects. Thus, UITS shall be included in all phases of the project from the first preliminary meeting to the final walk-through, including each architectural, engineering, and construction phase. UITS reserves the right to send a representative to inspect the job site(s) during construction to ensure compliance with this telecommunications manual and all associated telecommunications codes and standards. 1.7 Project Management Project management is the whole range of activities necessary to efficiently achieve a set of goals. Project management includes: calendar and project planning; communication with clients/vendors/contractors; coordination of team members' work; cost control; monitoring progress of a project; paperwork and accounting; status updates of project progress; problem recognition and elimination. Project teams should meet on a regular basis to aid in these activities and to assure that all team members are well-informed. 1.7.1 Construction/Renovation Projects Every CSU or Foundation Properties construction/renovation project will have a construction project manager who is the ultimate authority and responsible for the overall success of the project. UITS will assign a telecommunications project manager to manage the telecommunications segment of the project and to provide telecommunications support to the construction project manager. 1.7.2 Telecommunications Projects Every CSU or Foundation Properties telecommunications project will have a UITS project manager who is the ultimate authority and responsible for the overall success of the project. A construction or facilities project manager will be called upon when necessary to manage the facilities segment of the project and to provide facilities support to the telecommunications project manager. 1.7.3 Deliverables Certain construction/renovation project deliverables are necessary to aid in network documentation, troubleshooting, and future project planning. In addition to the official project record documents, the following deliverables are required by UITS: Keys and key codes to all lockable doors leading from the outside of a building to the data closet AutoCAD drawings of all outside plant fiber runs with GPS coordinates clearly marked 8 Columbus State University Telecommunications Design Manual July 5, 2011 2 INTRABUILDING DESIGN ELEMENTS 2.1 Data Closets All rooms used for telecommunications should be dedicated to the sole use of telecommunications. No other building facility equipment should be housed in any telecommunications room including, but not limited to, fire alarm systems, monitoring systems, security systems, janitorial services, supply storage, departmental storage, etc. Data closets should be vertically stacked and strategically placed so that horizontal cabling will not exceed 250’ from the termination panel in the data closet to the Work Area Outlet (WAO) location. This manual will also refer to a data closet as an MDF or IDF. The MDF is the main data closet for a building where telecommunications cables enter the building from the outside plant. The IDF is a data closet located strategically to provide service to surrounding sections of the building. Typically, there will be one IDF on each floor of a building. In most cases, the MDF will also serve as an IDF for that section of the building. 2.1.1 Entrance Pathways Outside plant cables will enter the room from the nearest manhole, utility pole, or other service provider location. There should be a minimum of three (3) 4” conduits installed from the MDF to the utility pole, manhole, hand-hole or duct bank for each service being provided to the facility (Voice/Telephone Service, Data/LAN Service and Video/CATV/SMATV Service). In some cases fewer conduits may be allowed based on the building usage. 2.1.2 Location Without exception the MDF should always be located in a dry area, not subject to flooding, on the ground floor and on an exterior wall. Equipment not related to the support of the MDF (e.g., piping, ductwork, pneumatic tubing, etc.) should not be installed in, enter or pass through the room. IDF locations that limit expansion such as near elevators should be avoided. Accessibility for the delivery of large equipment should be provided. MDF and IDF should be located in such a manner as to provide access from a hallway and should not have an outside door. 2.1.3 Size The minimum size should be 150 square ft. If it is expected that the density of work areas will be higher, then the size should be increased accordingly to accommodate additional equipment. Establish a single UPS room per building for all new building construction and for major renovation projects. 9 Columbus State University Telecommunications Design Manual July 5, 2011 2.1.4 Layout Telecommunications equipment layouts within the data closet should be verified with the equipment providers for weight and distance limitations between equipment racks. Clearances should be sufficient (typically 3’ 4” from walls) and capacity for future expansion should be considered. 2.1.5 Provisioning A minimum of one wall should be covered with rigidly fixed, ¾ inch A-C grade, void-free plywood installed 6 inches above the finished floor (AFF) to 8 feet 6 inches AFF capable of supporting wall mounted telecommunications devices. The Plywood should be fire-rated and covered with two coats of white "fire retardant" paint on all sides prior to installation. 2.1.6 Flooring Room flooring should be light colored antistatic vinyl and capable of the following load ratings: Minimum distributed load rating: 100 lbf/ft2 Minimum concentrated load rating: 2,000 lbf If heavy equipment is anticipated these figures should be increased. 2.1.7 Ceilings MDF/IDF rooms should not have false ceilings. Minimum clear height in the room should be 8 feet without obstructions. 2.1.8 Lighting Lighting should be a minimum of 50 foot-candles measured 3 feet AFF and mounted 8 feet 6 inches AFF and controlled by a switch adjacent to the entrance door. At least one lighting fixture within the room should be on the emergency lighting circuit for the facility. 2.1.9 Entrance Door The entrance door should be a minimum of 36 inches wide and 80 inches high, fitted with a keypad lock, and open into and be accessible from the hallway inside the facility. If a double door is provided there should not be a center post. Entrance doors should not open to the exterior of the facility. 2.1.10 Interior Finishes The floors, walls, and ceilings should be sealed to reduce dust. Finishes should be light in color to enhance room lighting. 2.1.11 Water Infiltration The room should not be located below water level unless preventative measures against water infiltration are provided. The room should be free of water or drain pipes not directly required in support of the equipment within the room. A floor drain should be provided within the room if a risk of water ingress exists. 10 Columbus State University Telecommunications Design Manual July 5, 2011 2.1.12 Electromagnetic Interference The room should be located away from sources of electromagnetic interference i.e., electrical power supply transformers, electric motors and generators, x-ray equipment, magnetometers, radio or radar transmitters and induction sealing devices. 2.1.13 Vibration Potential vibration problems should be considered since excessive vibration can lead to loosened connections. 2.1.14 Fire Suppression Sprinklers If sprinklers are required by fire code, the heads should be protected with wire cages to prevent accidental operation. Drainage troughs should be placed under the sprinkler pipes to prevent leakage onto the equipment within the room. Consideration should be given to the installation of alternate fire-suppression systems or a dry pipe system. 2.1.15 Auxiliary Fire Extinguishers Portable fire extinguishers should be provided and maintained within the data closet per applicable code. 2.1.16 Environmental Conditioning HVAC should be provided on a 24 hours-per-day, 365 days-per-year basis. If the building HVAC system cannot assure continuous operation in the equipment room then a stand-alone unit should be provided. If a standby power source is provided for the facility, consideration should be given to connecting the HVAC serving the telecommunications equipment room to the standby supply. Temperature and humidity should be controlled to provide continuous operating ranges of 64°F TO 75°F with 30% to 55% relative humidity measured. The ambient room temperature and humidity should be measured at a distance of 5’ AFF, after the equipment is in operation, at any point along a telecommunications equipment aisle. 11 Columbus State University Telecommunications Design Manual July 5, 2011 2.1.17 2.1.18 Rack Systems A 4-post rack shall be placed within the room so as to provide adequate clearance (usually 3’ 4” from wall and as far away from the door as possible) for access to the equipment to be installed in the racks as well as to existing or new backboards on the walls. Additional racks may be required where work area density is higher. Racks shall be securely attached to the floor and wall using hardware as appropriate for the material. A standard ladder rack shall be mounted perpendicular to the wall, resting on the 4-post rack, and securely attached to the wall. Racks shall be grounded to the nearest building ground suitable for communications grounding using a minimum of 6 AWG grounding wire. Rack mounting screws not used for installing patch panels and other hardware shall be bagged and left with the rack upon completion of the installation. Electrical Power Each data closet shall be equipped with a minimum of two (2) dedicated earth grounded 20 AMP circuits feeding power to two (2) NEMA 5-20 outlets. Data closets with 121 to 264 total voice/data patch panel ports shall be equipped with a minimum of four (4) dedicated earth grounded 20 AMP circuits feeding power to four (4) NEMA 5-20 outlets. Data closets with 265 to 384 total voice/data patch panel ports shall be equipped with a minimum of six (6) dedicated earth grounded 20 AMP circuits feeding power to six (6) NEMA 5-20 outlets. The outlets should be located at standard height (18” AFF) near the back of the rack system for easy accessibility. Additional convenience duplex electrical receptacles should be placed along the wall, spaced every 6’ at standard height. All receptacles in the MDF/IDF should be isolated grounding type. If a standby power source is provided for the facility the data closet panel should be connected to the standby power. 2.1.19 Uninterruptible Power Supplies The building Uninterruptible Power Supply should be connected to a standby power source feeding power to all building data closet NEMA 5-20 outlets. A minimum of two uninterruptible power supplies (UPS) shall be installed in each data closet. Data closets with 121 to 264 total voice/data patch panel ports shall be equipped with a minimum of four (4) uninterruptible power supplies (UPS). Data closets with 265 to 384 total voice/data patch panel ports shall be equipped with a minimum of six (6) uninterruptible power supplies (UPS). The UPS rails shall be mounted at the bottom of the rack system, the UPS slid into place, and the UPS attached to the front of the rack system using the UPS mounting brackets. Each UPS has two power supplies. To provide redundancy, one power supply should be plugged into one of the two dedicated circuits with a NEMA 520 outlet and the other power supply should be plugged into the other dedicated circuit with a NEMA 5-20 outlet. 12 Columbus State University Telecommunications Design Manual July 5, 2011 2.1.20 Equipment Grounding Access should be made available to the telecommunications grounding system specified by ANSI/ANSI/TIA/EIA – 607 - Commercial Building Grounding and Bonding Requirements for Telecommunications (1994) 2.2 Other Telecommunications Spaces 2.2.1 Audio/Video Equipment Rooms/Spaces Depending upon the requirements of the facility for Audio/Video (A/V) equipment it may be necessary to provide dedicated spaces/rooms for this equipment. As with data closets, A/V rooms should be located in such a manner as to provide access from a hallway and should not have an outside door. A/V equipment should only be housed in telecommunications rooms if adequate additional space is provided. If a large quantity of A/V equipment is required then rooms dedicated to A/V should be provided. It may be beneficial to hire an A/V consultant to design this type of space. 2.2.2 Computer Rooms Typically the main computer room is space dedicated solely to housing multiple file servers, large PBXs, and other computer equipment. While it may be necessary to install network equipment in this room for connectivity to the computer equipment, design of this room is beyond the scope of this document. There should, however be sufficient conduit and backbone cabling interconnecting the main computer room to the MDF. Access floors in computer rooms should be installed in accordance with ANSI/ANSI/TIA/EIA -569-a, Commercial Building Telecommunications Pathways and Spaces – Addendum 3 –Access Floors. 2.2.3 Shallow Telecommunications Rooms In existing or renovated buildings, minimum IDF sizes may not be possible. If the use of a shallow room is approved by UITS, the minimum dimensions shall be 6’ deep by 8’6” wide by 8’ high. The door to the room should be a minimum of 36 inches wide. If a double door is used, the center post should be eliminated. Due to space limitations, and safety concerns, no equipment other than punch down blocks and wall-mounted equipment with support posts should be housed in this size room. 2.3 Backbone Pathways In multi-level structures, the MDF and IDF should be designed in a stacked configuration, i.e., one room above the other. A minimum quantity of 4, 4” sleeved holes should be provided between the rooms. In buildings with more than 4 floors, the number of sleeved holes may have to increase. The requirements for the vertical riser system should include the following: An extra minimum 1” metallic sleeve should be provided for the vertical riser ground system. A continuous length of properly sized insulated copper ground 13 Columbus State University Telecommunications Design Manual July 5, 2011 2.4 wire should run through all satellite closets on each floor starting from the Telecommunications Main Grounding Bus Bar (TMGBB) in the MDF. Conduits in the room should extend below the ceiling and above the floor 4” with a 2” clearance from the finished wall. Fire stop material should be installed in all sleeves. All conduits used for fiber optic cabling should also require innerduct if the conduit is sized for other cables in the future. Horizontal Pathways 2.4.1 Conduit Systems All cable should be enclosed in conduit or cable tray for protection. Two types of conduit systems are acceptable. One type is called the Zoned Home Run System. The other is the Cable Tray System. In the Zoned Home Run System, all conduits are "home-run" from the Work Area Outlet (WAO) to the appropriate IDF serving that zone. The Cable Tray System uses cable tray in conjunction with conduit. The cable tray should be installed in the ceiling space above the major hallways in a configuration that provides the occupants with the most efficient and productive use of communications services. Radiating conduits are then provided from the cable tray to each WAO. 2.4.2 Cable Tray Cable trays should be installed and filled in accordance with ANSI/ANSI/TIA/EIA -569-A-7, Commercial Building Standard for Telecommunications Pathways and Spaces – Addendum 7, Cable Trays and Wire-ways. The cable tray should be mounted above the finished ceiling in the main corridor. To insure that the cable tray is accessible, it should be installed 4” to 8” above the ceiling tile and have no less than a 24" horizontal clearance along one side and 6" above the tray. No foreign conduit, pipes, or HVAC ducts should rest on or extend through the cable tray. Supporting hangers should be attached along the cable tray sides and not within the cable tray bed. Because the cable tray requires ceiling spaces that are accessible, cable tray should not be placed above permanent type ceilings or above office or classroom space. 2.4.3 Conduit The conduit may consist of two types: rigid metallic and/or electrical metallic tubing. PVC is allowed only in wet and/or corrosive environments. 2.4.3.1 Rigid Metallic Conduit Rigid metallic conduit (RMC) should be industry standard, heavy wall steel conduit and should have galvanized finish throughout. 14 Columbus State University Telecommunications Design Manual July 5, 2011 2.4.3.2 RMC conduit installation should be made in accordance with industry standards for installation. Running-threads, split couplings and threadless couplings will not be accepted. Install metallic bushings at all terminations in cable trays, freestanding conduits, and within boxes, enclosures and cabinets. During installation, cap all runs left unfinished or unattended overnight. Cap all terminations of finished runs with manufactured fittings to prevent ingress of moisture until wire and cable are pulled in. No more than two 90 degree sweep bends are permitted between junction boxes, pull boxes, cabinets, or cable access points. The sweep bend radius should be at least 12". Electrical Metallic Tubing (EMT) All EMT conduits should be cold rolled steel tubing with zinc coating on the outside and protected on the inside with zinc enamel or equivalent corrosion-resistant coating. EMT may be installed in dry construction in sheltered spaces, in partitions other than concrete, and in solid plaster-work. EMT should not be installed where: o it will be exposed to view below 8’ above finished floor, o it may be subject to severe physical damage, o it may be subject to severe corrosive influence, o trade size is larger than 2", or o tubing, elbows, couplings, and fittings would be in concrete or in direct contact with the earth. EMT couplings should be all steel, hexagonal, compression type with all joints made tight. All empty conduit runs should have a nylon pulling tape, string, or wire installed from outlet to IDF. This tape should be continuous through all junction boxes and the pulling strength should not be less than 200 pounds. 2.4.4 Outlet Boxes, Junction Boxes, and Pull Boxes Except as noted, all boxes should be manufactured from galvanized industry standard gauge sheet steel. The standard mounting height should be 18" above the finished floor or 6” above a backsplash in a countertop area. For classrooms, lecture halls, auditoriums, or designated multi-media rooms, a double-gang electrical box should be equipped with a double-gang plaster ring with 1" radial conduit. Each outlet box should have 2-1” conduits and each conduit should have no more than two 90° bends between the outlet and the designated communications room or cable tray. The sweep bend radius should be at least 12". If more than two 90 degree bends are required, a pull box should be installed and the locations of pull boxes should be shown on the drawings. The use of LB, LL, and LR fittings should not be used without approval by UITS. Outlets should not be looped in the same run of conduit. 15 Columbus State University Telecommunications Design Manual July 5, 2011 Flush wall mount telephone outlets mounting height should be 48" above the finished floor, and conduit entry from the top. Interior surface mounted devices and raceways (exposed to view) should be metal type and should be painted to match wall surface. 2.4.5 In-floor Systems In floor Systems should be installed in accordance with ANSI/ANSI/TIA/EIA -569A-5, Commercial Building Standard for Telecommunications Pathways and Spaces – Addendum 5 – In Floor Systems. Fixed “In-floor Systems” are generally not recommended due to the inflexibility of such systems. Access floor systems provide a much better solution in computer laboratories, computer rooms and other open spaces that may be rearranged frequently. Tiered lecture halls may be designed to use in-floor systems but should be carefully planned if utilized to insure coordination with electrical and structural disciplines. During construction the in-floor systems should be sealed watertight to prevent moisture from accumulating in the conduits, boxes or raceway. Floor boxes should not be “daisy-chained”. A minimum 1” conduit should serve each floor box and extend to the cable tray in the hallway or homerun to the nearest IDF. In-floor boxes should be large enough to prevent the cable-bending radius from being exceeded. 2.4.6 Modular Furniture Raceway/ Furniture Pathways and Spaces When modular type furniture is to be installed the fill recommendations of ANSI/ANSI/TIA/EIA -569-A-2, Commercial Building Standard for Telecommunications Pathways and Spaces – Addendum 2 – Furniture Pathways and Spaces should be followed. The following items should be addressed well before construction of the facility begins or before the furniture is specified: Pathway fill factor Furniture pathway capacity Access to the furniture pathway Furniture pathway bend radius Power and telecommunications separation 16 Columbus State University Telecommunications Design Manual July 5, 2011 2.5 Intra-building Backbone Cabling 2.5.1 Backbone Cabling to Support Voice Systems Voice (telephone) backbone cable will typically originate at the location of the facilities telephone system. The backbone cables will route to the various buildings on the campus, and/or the various floors of the building to distribute telephone service to the telecommunications rooms. Voice backbone cables should meet the following requirements: Voice backbone cables should be minimum Category 6 cables. Voice backbone cables installed in underground conduits should be gel filled cables. The shield of all backbone cables must be bonded to the Telecommunications Main Grounding Bus bar. Voice backbone cables should be sized to support 2 pairs per each voice station, plus 25% growth. When calculating size, voice stations should also include fax machines and dial-up modems. 2.5.2 Backbone Cabling to Support Data Systems The standard for intra-building fiber optic backbone is 12-strand single-mode to each IDF from the MDF. Strand count may be adjusted to meet specific requirements with UITS approval. All strands of a fiber optic cable must be terminated with SC connectors (unless otherwise specified by UITS) and tested. The installation of “dark fiber” is not allowed. Each fiber cable shall be stripped upon entering the termination panel and the individual fibers routed into the termination panel. Each cable shall be clearly labeled at the entrance to the termination panel. Cables labeled within the bundle are not acceptable. Dust caps must be placed on all loose (disconnected) connectors. 10 AWG or 12 AWG wire locators must be installed where groups of nonarmored fiber optic cables follow a single conduit path between sites. Each end must be labeled with the name of the other end’s building or site. Fiber termination is only allowed inside wiring closets. Fiber splicing is not permitted unless required by local codes or requested by UITS. Fiber optic cables should always have a minimum 15-foot service loop at the terminating ends. 2.5.3 Backbone Cabling to Support Video/CATV For video and broadband (CATV) applications to 2 GHz, 75-ohm coaxial cable has traditionally been utilized. Multimode and single mode fiber optic cable may also be used for CATV and video backbone cabling. A certified CATV engineer should design the system. If it is desired to use fiber optic cable in lieu of the 75ohm coaxial cable then additional capacity/more strands of fiber should be provided over and above the minimum of 12 single mode strands to each IDF from the MDF. 17 Columbus State University Telecommunications Design Manual July 5, 2011 2.5.4 Backbone Cabling to Support Other Low Voltage Systems During planning for backbone cable installations, consideration should be given to migration of other low voltage systems such as fire alarm systems, facility control, and monitoring systems. 2.6 Horizontal Cabling 2.6.1 General Horizontal cabling should be installed in accordance with ANSI/ANSI/TIA/EIA 568. One exception to that standard is to limit the horizontal distance of all cabling to 250 feet in order to provide an additional margin of reliability over and above the 295’ specified by ANSI/ANSI/TIA/EIA 568. 2.6.2 Horizontal Distribution Cabling to Support Voice or Data Horizontal distribution cable is the cable that extends from the data closet to the work area. The standard configuration is to route a minimum of one cable for voice and two cables for data to each work-area. In all new installations, Category 6 UTP cable should be used for both voice and data. Where additions are made to existing installations, Category 5E UTP cable may NOT be used and existing CAT5E patch panels will NOT be utilized. Configurations may be adjusted to meet individual needs, provided that any adjustments comply with all codes, standards, and requirements of this manual and the manufacturer’s recommendations. Splitting cable pairs from one cable to two or more outlets to avoid adding an additional 4-pair cable is not allowed – no exceptions. 2.6.3 Horizontal cabling to support Video/CATV Horizontal Video/CATV cable should be RG-6 quad shield 75-ohm coaxial cable. All cable should be run within conduit. Each outlet should be home run to the nearest IDF. 2.6.4 Cabling to Support Other Low Voltage Systems During planning for horizontal cable installations, consideration should be given to migration of other low voltage systems such as fire alarm systems, facility control, and monitoring systems. 2.6.5 Removal of Abandoned cables In retrofit or renovation scenarios all cable that is not to be reused must be completely removed by the installer. Communications cables that will be used in the future must be tagged “for future use”. 18 Columbus State University Telecommunications Design Manual July 5, 2011 2.6.6 Work Area Outlet Configurations Typically, the recommended minimum standard Work Area Outlet (WAO) should include two cables to each outlet, each of which will be used for either data or voice. Drawings should be specific when indicating voice and data cables required at each location. It is recommended that WAOs be provided in the following locations as indicated. Additional WAOs may be required depending upon the size or special needs of room. Recommended minimum configurations are as follows: Two WAO – one near furniture and one on opposing wall Two WAO One WAO for each eight feet of wall length on each wall. A minimum of one WAO A minimum of one data-only connection for each computer and printer A minimum of one WAO near instructor’s station and one WAO in ceiling for projection and one WAO in ceiling for wireless equipment One analog-only connection per location One analog-only connection per phone One analog-only connection per location One data-only connection per location One standard WAO in each bedroom and living area One data-only connection per location One data-only connection per location A minimum of one standard WAO to be installed at the location of any equipment requiring a telephone or data network connection. Offices Receptionist Areas Conference Room Lounges/Break Rooms Computer Labs Classrooms Emergency Phones Pay Phones Elevator Phones Monitoring Systems Residence Apartments Wireless LAN Access Point Data Projector Other Systems 2.6.7 Grounding, Bonding, and Electrical Protection All telecommunications grounding, bonding, and electrical protection at CSU facilities should comply with the requirements of NEC, ANSI/ANSI/TIA/EIA-607 2.7 Administration and Labeling Administration of the telecommunications infrastructure includes documentation of cables, termination hardware, patching and cross-connection facilities, conduits, other cable pathways, telecommunications closets, and other telecommunications spaces. ANSI/ANSI/TIA/EIA-606, the Administration Standard for the Telecommunications Infrastructure of Commercial Buildings is the industry standard for administering and documenting the telecommunications infrastructure. 19 Columbus State University Telecommunications Design Manual July 5, 2011 2.7.1 As-built Drawings The as-built drawings graphically document the installed telecommunications infrastructure through floor plan, elevation, and detail drawings. In many cases, these drawings will differ from the installation drawings because of changes made during construction and specific site conditions. In the as-built drawings, the identifiers for major infrastructure components must be recorded. The pathways, spaces, and wiring portions of the infrastructure each may have separate drawings if warranted by the complexity of the installation, or the scale of the drawings. CSU requires the installer to provide a complete and accurate set of as-built drawings. 2.7.2 Labeling and Color Coding To be consistent with ANSI/ANSI/TIA/EIA standards and industry practices, it is important that both labeling and color coding be applied to all telecommunications infrastructure components. Labeling with the unique identifier will identify a particular component. Proper color-coding will quickly identify how that component is used in the overall telecommunications infrastructure of the facility. 2.7.2.1 Labeling Labels are generally of either the adhesive or insert type. All labels must be legible, resistant to defacement, and maintain adhesion to the application surface. Outside plant labels should be totally waterproof, even when submerged. All labels should be machine printed, with the exception of insert labels. Insert labels may be hand written, although machine printed is preferred. Installers shall create labels according to the following scheme: Outside Plant SbbbSrrrSpppSource Source Source patch Building Room panel name & # port # CCT120PanelA1RICH121PanelB1- DbbbDrrrDestination Destination building room # RICHCCT- 121120- DpppDestination patch panel name & port # PanelB1PanelA1- Room 120 in CCT is the MDF for that building Room 121 in RICH is the MDF for that building Interior Backbone SrrrSource Room # 120220- SpppSource patch panel name & port # PanelA1PanelB1- DrrrDestination room # 220120- Room 120 is the IDF for the first floor Room 220 is the IDF for the second floor 20 DpppDestination patch panel name & port # PanelB1PanelA1- T V (Voice) D (Data) D D T V (Voice) D (Data) D D Columbus State University Telecommunications Design Manual July 5, 2011 Horizontal Cabling DrrrDestination room # DpppDestination patch panel name & port # or wall jack # 101120- 1PanelA1- T V (Voice) D (Data) D D Room 101 is an office with 1 data jack. Room 120 is the IDF. *Use final room numbers that have been approved by CSU facilities. DO NOT use room numbers that appear on construction documents without prior approval. 2.7.2.2 Color-scheme Color-coding may also be used to identify specific cables in a pathway or the function of specific equipment racks or equipment. The same color is always applied to both ends of any given cable. The following color code should be used in all CSU facilities: 2.8 Blue is used to identify data cabling and terminations. White is used to identify voice cabling and terminations. Where Voice over IP is specified the voice and data will converge on the same blue cable. Design Recommendations for Wireless Systems This manual is not intended to address the design of Wireless LAN systems. In general Wireless LANs should be installed only as extensions or additions to hardwired LANs and not as a replacement for cabled voice, data or video networks. Allowable distances for a wireless system depend heavily upon the site where the system is to be installed. The design of the wireless network is guided by inspections and tests performed at the site, also referred to as a site survey, site verification, or environmental analysis. Both physical and environmental barriers should be identified and accommodated in the design. 2.8.1 Horizontal Cabling Design Considerations for Wireless LANs In general, one data outlet should be provided for each access point. Power for the access point should be obtained through the data connection. Standard outlet boxes as provided for data outlets should be provided for access points and should be mounted flush in the suspended ceiling or 18 inches below the finished ceiling in walls. 21 Columbus State University Telecommunications Design Manual July 5, 2011 3 OUTSIDE PLANT DESIGN ELEMENTS The customer owned outside plant telecommunications infrastructure includes the backbone pathways and backbone cabling required for voice, data, and video between buildings. All customer-owned outside plant telecommunications infrastructure must be installed in accordance with ANSI/ANSI/TIA/EIA -758, Customer-Owned OSP Telecommunications Standard (April 1999) 3.1 Cable Prior approval and coordination with the CSU Facilities Manager and other concerned parties is necessary when the situation requires pulling cable through a conduit occupied by other cables. All cables associated with campus telecommunications networks (telephone, fiber optics, and cable television) should be connected and disconnected by CSU. Only those cables specified within this document will be installed in any communications facility. There should be no cable with voltages higher than 48 volts in communications duct banks except electrical feeders for sump pumps and lights and electrical outlets in vaults. 3.1.1 Abandoned Cables Whenever possible, all abandoned cable should be removed from tunnels, manholes and conduit. If it is not feasible to remove abandoned cable, it should be clearly tagged at both ends as abandoned with appropriate labeling. 3.1.2 Cable Types Allowed Most low voltage cabling is installed underground in duct banks. No aerial cable should be installed unless pre-approved by the CSU Facilities Manager. 3.2 Safety Issues 3.2.1 General This manual does not specifically address safety issues associated with its use. It is the responsibility of the user of this manual to determine and use the applicable safety and health practices of OSHA, NEC, NESC and any other life/safety standard. CSU should not be liable with respect to any liability, loss or damage caused directly or indirectly by application of this manual. No project is so important, nor any completion deadline so critical, to justify the noncompliance with industry codes and standards. 3.2.2 Trenching and Excavation The contractor should contact the one-call locating service in the area of the construction prior to commencement of any trenching activities. College and university campuses may have utilities that the locating service will not locate. It should be the responsibility of the contractor to contact CSU and arrange for customer-owned utilities to be located by the customer prior to commencement of any trenching. Any and all costs incurred for damage to any utilities should be born by the excavation contractor. 22 Columbus State University Telecommunications Design Manual July 5, 2011 3.2.3 Confined Spaces The Occupational Safety and Health Administration (OSHA) requirements CFR 1910.268 (0) address telecommunications work performed on underground lines in maintenance holes and un-vented vaults. It is the designer and the contractor’s responsibility to determine if any spaces requiring entry are defined as confined spaces, or as permit-required confined spaces, and to follow all related OSHA procedures. 3.3 Service Entrance Conduit 3.3.1 General When conduits pass through exterior concrete walls of any facility, the entrance should be watertight. Wall sleeves at service entrance points must be sized to provide a minimum of ½ inch clearance around the conduit to allow for proper sealing of the penetration. All campus buildings should be connected to the nearest manhole or new manhole if one is to be installed. 3.3.2 Allowable Conduit Types 3.3.2.1 Rigid Galvanized Steel Conduit with Threaded Fittings This conduit should be installed with reinforced concrete casing. When not encased in concrete, conduit should be painted with two coats of coal tar base paint or have an epoxy coating applied by the manufacturer. 3.3.2.2 Schedule 40 PVC Conduit This conduit should be installed with reinforced concrete casing. PVC conduit is not acceptable without reinforced concrete. 3.4 Maintenance Holes, Handholes and Vaults 3.4.1 Maintenance Holes and Vaults Maintenance holes are concrete, steel or cast iron units provided with a removable lid that permits access via a ladder. Telecommunications vaults are typically constructed in pre-fabricated cast concrete, and contain a floor section, wall section, and top section. Key requirements for maintenance hole and vault installation include: The minimum interior dimensions should be 6' wide x 8’ long x 7’ high. The maximum allowable depth is ten (10) feet unless otherwise approved by the CSU Facilities Manager. Telecommunications maintenance holes and vaults should not be adjacent to nor share any walls with electrical manholes. The maximum distance between maintenance holes or vaults connected in any one run is 400’. All materials used should be resistant to corrosion. All steel should be galvanized or zinc coated. 23 Columbus State University Telecommunications Design Manual July 5, 2011 Racking equipment and cable supports are mandatory and should be galvanized or zinc coated. Maintenance holes and vaults should have pulling rings cast into the wall opposite to each conduit entrance. All metal components should be grounded. All maintenance holes and vaults should have cast-iron steps or ladders for climbing in and out. All conduits entering a maintenance hole or vault will be sealed from the outside prior to back filling. All conduits must be extended into the maintenance hole or vault 4 inches and be clearly tagged. Any joints are required to be watertight. The cover must be a minimum of 1” above the finished grade after all landscaping is completed. If located in paved areas, the pavement must be tapered up to the cover. All maintenance holes should be equipped with a frame and cover. The maintenance hole cover opening should be a minimum of 27” in diameter and should be cast with the word "TELEPHONE" or “FIBER OPTICS” and the maintenance hole number assigned by the CSU Facilities Manager. 3.4.2 Telecommunications Handholes Handholes should be provided at building entrances, both sides of road or parking lot crossings, at tie-ins to existing conduits and where multiple cable runs intersect. A handhole is similar to a miniature vault that is used solely as a pulling point to expedite the installation of cable in conduit runs over 400’ or with more than two 90° bends. The following rules apply to the use of handholes: Handholes should be 60”x36” and at least 36” deep with a heavy-duty cover labeled “Fiber Optics”. Conduit entering the handhole should be aligned on opposite walls of the handhole at the same elevation. Handholes should be pre-cast polymer concrete type (Quazite). Handholes should be installed no more than 400’ apart to maintain proper cable pulling tension. A handhole should not be used if the requirements exceed the capacity of two 4” conduits. Where more than two 4” conduits are used in a duct bank, vaults must be used in lieu of handholes. A handhole should not be utilized for splicing cables together. 24 Columbus State University Telecommunications Design Manual July 5, 2011 3.4.3 Cables and Labeling All cables entering a maintenance hole, vault, or handhole must loop around the hole to allow for expansion of the cable. Looped cable should be kept at least 6” above the floor. All cables should be labeled at both ends using aluminum or stainless steel tags with the following information: The owner of the cable Cable number Cable type Pairs utilized Termination point. 3.4.4 Underground Conduit Direct burial of telecommunications cable is not desired, and therefore, underground telecommunications distribution to permanent facilities should always be placed in conduit to facilitate the easy installation of additional future cables. All outside plant substructure installations should comply with ANSI/ANSI/TIA/EIA-569. Key requirements for underground conduit installation include: Conduit quantity and size should be determined based on the requirements for the initial installation of cable and a realistic prediction of future expansion in the area. Always provide at least 25% spare capacity. Conduit quantities should be based on a maximum of 40% cable fill per conduit. All conduit installations should use 4” conduits, with a minimum of one spare conduit. All conduits should be Schedule 40 or Schedule 80 Polyvinyl Chloride (PVC) pipe. All conduit sections should be glued with PVC pipe glue to form a watertight joint. Spacers are required to maintain proper separation between multiple conduits in a run. The PVC conduit should transition to rigid metal conduit a minimum of 10-feet from the building foundation. Rigid metal conduit should route from that point to the building entrance point. The rigid metal conduit is required to compensate for the shearing effect of excavated ground settling around the building foundation, and to provide protection from any future landscaping activities near the building. The conduit system should be encased in hard-tamped sand or fine granular earth at least 3” above and below the conduits. The conduit system should be encased in 2,500-PSI concrete when the conduit passes under roads or driveways. All conduits should be installed with a slight drain slope (0.125-inches-perfoot) to prevent the accumulation of water in the conduit. All conduits must be buried at least 24” deep, with preferred depth of 36” Conduit placed for routing of entrance cables from the service provider to the building entrance point should be installed per the service provider’s 25 Columbus State University Telecommunications Design Manual July 5, 2011 requirements, generally 36 to 48-inches deep. Prior consultation with the service provider is required. All conduit and duct bank runs must have an orange colored, metal detectable warning ribbon installed ½ the distance between the top of the conduit and the finished grade. All cable should be installed in the lowest available conduit in a duct bank, working up as additional cables are installed. All spare conduits, and all conduits not filled to capacity, should have 1/4-inch polypropylene pull ropes installed. The pull ropes must be re-pulled each time an additional cable is installed. All conduits, used and spare, should be plugged at both ends to prevent the intrusion of water, gasses, and rodents. In new construction, fiber optic backbone cables should always be installed in fiber optic innerduct. Normally, three innerduct can be placed in a 4” conduit. Where fiber optic cable is installed into existing conduits, the use of fiber optic innerduct is preferred if space is available. 3.4.5 Aerial Distribution Aerial distribution of telecommunications cabling at CSU is not authorized or recommended for new construction unless specific approval is granted due to unique circumstances, or as specified in a statement of work. Approved aerial distribution cabling should adhere to the following guidelines: 3.4.5.1 General Guidelines 3.4.5.2 Cable must have UV protected sheath to minimize effects from sunlight Cable must be metallic armored to minimize damage from external sources such as small animals Manufacturer recommendations should always be adhered to for selfsupporting cable installations. Consultation with the manufacturer should take place if there is a need to vary from the recommendations, and a written account of the manufacturer’s alternate recommendations should be provided to the UITS project manager. Allow for storage of sufficient slack loops to address problems associated with cable breaks and pole damage resulting from severe weather or vehicular accidents. Fiber lines must be placed a minimum of 10 feet from any electrical lines. Cable Pull-box / Splice-box Placement Every street (up to 50 feet wide) crossing – one (1) box located within 10 linear feet of the crossing, unless a traffic device (signal, DMS, video detector, etc.) is located near (within 50 linear feet) of the crossing. Every freeway, railroad, or bridge crossing – two (2) boxes located (one each) at the terminal points of the crossing. All mid-span splices must be placed in a splice box and secured in an appropriate cable tray. All splice boxes used for aerial cable installations should be mounted on a convenient utility pole. If no space exists on the pole, then a suitable in- 26 Columbus State University Telecommunications Design Manual July 5, 2011 ground splice/pull box must be installed near the utility pole. All cable leaving the aerial installation must be installed in conduit. All splice points must contain sufficient slack (50 foot minimum) to allow for future addition of communication devices, cable and splice repairs, or additional runs of “drop” cable. All splice boxes must be properly grounded according to NEC, EIA/TIA and Bellcor (Telcordia) standards. Aerial mounted splice boxes should only be used for temporary repairs. Mid-span cable meets (points where ends of cable reels meet) must be fusion-spliced and enclosed in a splice box. Mechanical splices must never be used to connect cable reel ends. c. Pulling Tension Contractor must follow the cable manufacturer’s specifications and recommendations regarding proper pulling tension during fiber installation procedures. Contractor must use proper construction techniques and proper tension monitoring equipment, such as Dynamometers and break-away swivels. Correctly sized Kellems or crimp-on grips must be used when pulling the fiber optic cable. When Aramid yarn is part of the cable structure, it must be tied to the grip to further distribute the pulling force. Adequate cable blocks must be placed along the cable route to ensure that cable sag is kept at a minimum. Contractor must ensure that during cable pull, the cable does not ride over the reel flange which may result in scuffing or tearing of the jacket. If at all possible, use little to no braking during the pay-off of the cable from the reel to avoid excessive cable tension. d. Cable Bending Radius Contractor must follow all pulling tension and minimum bending radii instructions and specifications issued by the cable manufacturer, loaded and unloaded. Cable paths should be planed to eliminate as many curves and bends as possible. 27 Columbus State University Telecommunications Design Manual July 5, 2011 4 MATERIALS LIST Vendors must quote and install the parts specified below or, in the case that a specific part is not mentioned, industry standard parts. 4.1 Inside Plant Horizontal Cable CAT6 cabling is required for all new construction and those renovations where new patch panels are required. CAT6 (Data & Voice): o Part # PUP6004BU-UY Blue Panduit TX6000™ CAT6 UTP cable (Category 6 plenum cable with separator. Conductors are 23 AWG construction) <OR> o Part # M57193 Blue Mohawk Brand AdvanceNet CAT6 UTP cable (Category 6e plenum cable with Flex-Web separator. Conductors are 23 AWG construction) <OR> o 4.2 Part # 7131800 Blue General Cable GenSPEED6 Category 6 UTP (Category 6 plenum cable with separator. Conductors are 23 AWG construction) Inside Plant Backbone Cable Single mode fiber optic for data and voice: Exact strand count to be determined by project scope Part # {xxx}EUZ-T4101DAN Corning Cable Systems Industrial LSZH™ Loose Tube, Gel-Free, Indoor/Outdoor Single-mode (OS2) Interlocking Armored Cable, 12-288 Fibers {xxx} in part # equals the number of strands Fiber Part Number Product Details Fiber Category Count 012EUZ-T4101DAN 12 F, Single-mode (OS2) Single-mode (OS2) 12 024EUZ-T4101DAN 24 F, Single-mode (OS2) Single-mode (OS2) 24 048EUZ-T4101DAN 48 F, Single-mode (OS2) Single-mode (OS2) 48 096EUZ-T4101DAN 96 F, Single-mode (OS2) Single-mode (OS2) 96 144EUZ-T4101DAN 144 F, Single-mode (OS2) Single-mode (OS2) 144 192EUZ-T4101DAN 192 F, Single-mode (OS2) Single-mode (OS2) 192 288EUZ-T4101DAN 288 F, Single-mode (OS2) Single-mode (OS2) 288 28 Columbus State University Telecommunications Design Manual July 5, 2011 Use Grounding, Bonding, and Pigtails as required to obtain Corning Warranty Part# F9B3-NM1Y Corning SC Single-Mode Pigtails Part# FDC-CABLE-GRND Armored Cable Grounding Kit; contains armored grounding clip and ground strap Fiber Terminations Single-Mode fiber terminations shall be completed with SC type connectors unless otherwise specified in the Scope of Work for a given project. All strands of Single-Mode fiber shall be terminated between data closets unless otherwise specified in the Scope of Work for a given project. Part # 95-200-41 Corning Cable Systems UniCam® SC/FC/ST® Compatible Single-Mode Connectors (UniCam® High-Performance Connector, SC, Single-mode (OS2), No-Epoxy/No-Polish, ceramic ferrule, logo, single pack, blue housing, blue boot) Fiber Patch Panels: Enclosures shall accommodate up to 12 duplex SC fibers (24 single mode fibers) per rack space, be constructed of steel material, and have removable front and rear covers. Part # CCH-01U Closet Connector Housing (CCH), 1 rack units, holds 2 CCH connector panels Part # CCH-02U Closet Connector Housing (CCH), 2 rack units, holds 4 CCH connector panels Part # CCH-03U Closet Connector Housing (CCH), 3 rack units, holds 6 CCH connector panels Part # CCH-04U Closet Connector Housing (CCH), 4 rack units, holds 12 CCH connector panels Part # CCH-CP12-59 Closet Connector Housing (CCH) Panel, SC adapters, duplex, 12 F, Single-mode (OS2) Multi-pair Analog Telephone Cable: Exact wire count to be determined by project scope Mohawk Brand Power Sum Backbone Cables. (Category 5e Plenum Rated, High Pair Count) Part # M58142 Plenum – 25 Pair 24 AWG UTP Part # M56126 Plenum – 50 Pair 24 AWG UTP Part # M56128 Plenum – 100 Pair 24 AWG UTP 29 Columbus State University Telecommunications Design Manual July 5, 2011 Part # M56129 Plenum – 200 Pair 24 AWG UTP Part # M57211 Plenum – 300 Pair 24 AWG UTP Part # M58349 Plenum – 400 Pair 24 AWG UTP 4.3 Workstation Outlets Faceplates: Part # CFPE4IWY Panduit Mini-Com© Executive Series Faceplates (Single gang, 4-port wall plate, off white) CAT6 (Data & Voice): Part # CJ6X88TGBU Panduit CAT6 Mini-Com© TX6™ 10Gig™ UTP Jack Module (Category 6, 8 position, 8 wire universal module, blue) Blank Modules: Part # CMBIW-X Panduit Mini-Com® Blank Module (One position, reserves space for future use, off-white) 4.4 Wiring Closet 4.4.1 Patch Panels Additional usage of traditional CAT5E punch down style patch panels shall not be accepted in existing wiring closets. CAT6 patch panels shall be used for all new patch panel installations. Do not terminate CAT6 cable into existing non-CAT6 patch panels. Patch Panels: Part # CPPL24WBLY (24-port) or CPPL48WBLY (48-port) Panduit Mini-Com© Modular Patch Panel with Labels (patch panel with labels, supplied with 6 or 12 factory installed CFFPL4 type snap-in faceplates) Replacement Label/Label Cover Kit: Part # C4PPLK Panduit Replacement Labels for Mini-Com© Modular Patch Panels (Each kit contains 6 labels and 6 clear label covers per bag) CAT6 (Data & Voice): Part # CJ6X88TGBU Panduit CAT6 Mini-Com© TX6™ 10Gig™ UTP Jack Module (Category 6, 8 position, 8 wire universal module, blue) 4.4.2 Patch Cords Use CAT6 UTP patch cords from CAT5E & Panduit Mini-Com© Modular patch panels to data switch. Additional purchases are no longer permitted for traditional CAT5E UTP patch cords from CAT5E patch panels to data switch. Formula: To determine the total number of colorful CAT6 patch cords to order, divide the total number of patch panel ports installed by six then add one. Purchase 30 Columbus State University Telecommunications Design Manual July 5, 2011 complete sets of white, red, green, blue, yellow, and black CAT6 UTP patch cords even if there is only one more patch panel port to connect to the data switch to allow for growth. CAT6 Data Patch Cord 1: Part # UTPSP7Y Panduit CAT6 patch cord with TX6 PLUS Modular Plug on both ends, 7 foot, White CAT6 Data Patch Cord 2: Part # UTPSP7RDY Panduit CAT6 patch cord with TX6 PLUS Modular Plug on both ends, 7 foot, Red CAT6 Data Patch Cord 3: Part # UTPSP7GRY Panduit CAT6 patch cord with TX6 PLUS Modular Plug on both ends, 7 foot, Green CAT6 Data Patch Cord 4: Part # UTPSP7BUY Panduit CAT6 patch cord with TX6 PLUS Modular Plug on both ends, 7 foot, Blue CAT6 Data Patch Cord 5: Part # UTPSP7YLY Panduit CAT6 patch cord with TX6 PLUS Modular Plug on both ends, 7 foot, Yellow CAT6 Data Patch Cord 6: Part # UTPSP7BLY Panduit CAT6 patch cord with TX6 PLUS Modular Plug on both ends, 7 foot, Black CAT6 Wireless Radio Data Patch Cords: Part # UTPSP1Y Panduit CAT6 patch cord with TX6 PLUS Modular Plug on both ends, 1 foot, White Part # UTPSP3Y Panduit CAT6 patch cord with TX6 PLUS Modular Plug on both ends, 3 foot, White CAT6 End User Data Patch Cords: Part # UTPSP7BUY Panduit CAT6 patch cord with TX6 PLUS Modular Plug on both ends, 7 foot, Blue Part # UTPSP10BUY Panduit CAT6 patch cord with TX6 PLUS Modular Plug on both ends, 10 foot, Blue Part # UTPSP14BUY Panduit CAT6 patch cord with TX6 PLUS Modular Plug on both ends, 14 foot, Blue Part # UTPSP20BUY Panduit CAT6 patch cord with TX6 PLUS Modular Plug on both ends, 20 foot, Blue Part # UTPSP30BUY Panduit CAT6 patch cord with TX6 PLUS Modular Plug on both ends, 30 foot, Blue Purchase Fiber Data Patch Cords four at a time to allow for link aggregation trunk compatibility. SC to LC Fiber Data Patch Cords: Part# F9E3-10M1Y 31 Columbus State University Telecommunications Design Manual July 5, 2011 1 Meter SC to LC singlemode duplex patch cord, 1.6mm jacketed cable (two SC connectors on one end and one duplex LC connector on other end) Part# F9E3-10M2Y 2 Meter SC to LC singlemode duplex patch cord, 1.6mm jacketed cable (two SC connectors on one end and one duplex LC connector on other end) Part# F9E3-10M3Y 3 Meter SC to LC singlemode duplex patch cord, 1.6mm jacketed cable (two SC connectors on one end and one duplex LC connector on other end) Part# F9E3-10M5Y 5 Meter SC to LC singlemode duplex patch cord, 1.6mm jacketed cable (two SC connectors on one end and one duplex LC connector on other end) SC to SC Fiber Data Patch Cords: Part # F9D3-3M1Y 1 Meter SC to SC singlemode duplex patch cord, 3mm jacketed cable (two SC connectors on each end) Part # F9D3-3M2Y 2 Meter SC to SC singlemode duplex patch cord, 3mm jacketed cable (two SC connectors on each end) Part # F9D3-3M3Y 3 Meter SC to SC singlemode duplex patch cord, 3mm jacketed cable (two SC connectors on each end) Part # F9D3-3M5Y 5 Meter SC to SC singlemode duplex patch cord, 3mm jacketed cable (two SC connectors on each end) LC to LC Fiber Data Patch Cords: Part# F9E10-10M1Y 1 Meter LC to LC singlemode duplex patch cord, 1.6mm jacketed cable (one duplex LC connector on each end) Part# F9E10-10M2Y 2 Meter LC to LC singlemode duplex patch cord, 1.6mm jacketed cable (one duplex LC connector on each end) Part# F9E10-10M3Y 3 Meter LC to LC singlemode duplex patch cord, 1.6mm jacketed cable (one duplex LC connector on each end) Part# F9E10-10M5Y 5 Meter LC to LC singlemode duplex patch cord, 1.6mm jacketed cable (one duplex LC connector on each end) 32 Columbus State University Telecommunications Design Manual July 5, 2011 4.4.3 Cable Management Vertical: Part # WMPV45E Panduit Standard Vertical Slotted Duct (Includes duct on front and rear. Dimensions 4"W x 5"D x 83"H) Require two WMPV45 per every 2 post rack Not compatible with enclosed data cabinets Horizontal: Part # WMP1E Panduit PatchLink™ Horizontal Cable Managers (Front pathway 3"H x 3"D, rear pathway 2"H x 5"D, width 19") Require minimum three WMP1E per every rack or rack system Require minimum three per AR3100 rack system Require WMP1E above and below each Patch panel Ladder Rack: Part # AR8165ABLK APC Power Cable Ladder 12” (30cm) wide w/ Bracket Kit Cable Ties: Part # HLS-75R0 3/4 Inch Black Velcro Tape 75ft Use of over tightened traditional plastic cable ties will damage cables Use traditional plastic cable ties only when Velcro tape wont work 4.4.4 Rack Systems Part # AR3100, APC NetShelter SX 42U 600mm Wide x 1070mm Deep Enclosure Black Standard enclosure for low to medium density server and networking applications. Compact width to optimize data center space. 42U height to easily roll through doorways. Includes: Baying hardware, Documentation CD, Key(s), Keyed-alike doors and side panels, Leveling feet, Mounting Hardware, Preinstalled casters, Side Panels Part # AR8210BLK, APC Roof Fan Tray 120VAC Black Part # AP7900, APC Rack PDU, Switched, 1U, 15A, 100/120V, (8) 5-15 Require one AP7900 per every two (2) data switches Part # AR7702, APC Cable Containment Brackets for Netshelter SX Require six AR7702 per AR3100 33 Columbus State University Telecommunications Design Manual July 5, 2011 4.5 Outside Plant Cable Single mode fiber optic for data and voice: Exact strand count to be determined by project scope Part # {xxx}EUZ-T4101DAN Corning Cable Systems Industrial LSZH™ Loose Tube, Gel-Free, Indoor/Outdoor Single-mode (OS2) Interlocking Armored Cable, 12-288 Fibers {xxx} in part # equals the number of strands Fiber Part Number Product Details Fiber Category Count 012EUZ-T4101DAN 12 F, Single-mode (OS2) Single-mode (OS2) 12 024EUZ-T4101DAN 24 F, Single-mode (OS2) Single-mode (OS2) 24 048EUZ-T4101DAN 48 F, Single-mode (OS2) Single-mode (OS2) 48 096EUZ-T4101DAN 96 F, Single-mode (OS2) Single-mode (OS2) 96 144EUZ-T4101DAN 144 F, Single-mode (OS2) Single-mode (OS2) 144 192EUZ-T4101DAN 192 F, Single-mode (OS2) Single-mode (OS2) 192 288EUZ-T4101DAN 288 F, Single-mode (OS2) Single-mode (OS2) 288 Use Grounding, Bonding, and Pigtails as required to obtain Corning Warranty Part# F9B3-NM1Y Corning SC Single-Mode Pigtails Part# FDC-CABLE-GRND Armored Cable Grounding Kit; contains armored grounding clip and ground strap Fiber Terminations Single-Mode fiber terminations shall be completed with SC type connectors unless otherwise specified in the Scope of Work for a given project. Only the first 48 strands of Single-Mode fiber shall be terminated between buildings unless otherwise specified in the Scope of Work for a given project. Remaining strands are to be left ready for future termination. Part # 95-200-41 Corning Cable Systems UniCam® SC/FC/ST® Compatible Single-Mode Connectors (UniCam® High-Performance Connector, SC, Single-mode (OS2), No-Epoxy/No-Polish, ceramic ferrule, logo, single pack, blue housing, blue boot) Fiber Patch Panels: Enclosures shall accommodate up to 48 duplex SC fibers (96 single mode fibers) per rack space, be constructed of steel material, and have removable front and rear covers. Part # CCH-01U Closet Connector Housing (CCH), 1 rack units, holds 2 CCH connector panels 34 Columbus State University Telecommunications Design Manual July 5, 2011 Part # CCH-02U Closet Connector Housing (CCH), 2 rack units, holds 4 CCH connector panels Part # CCH-03U Closet Connector Housing (CCH), 3 rack units, holds 6 CCH connector panels Part # CCH-04U Closet Connector Housing (CCH), 4 rack units, holds 12 CCH connector panels Part # CCH-CP12-59 Closet Connector Housing (CCH) Panel, SC adapters, duplex, 12 F, Single-mode (OS2) Multi-pair Analog Telephone Cable: Exact wire count to be determined by project scope Mohawk Brand Power Sum Backbone Cables. (Category 5e Plenum Rated, High Pair Count) Part # M58142 Plenum – 25 Pair 24 AWG UTP Part # M56126 Plenum – 50 Pair 24 AWG UTP Part # M56128 Plenum – 100 Pair 24 AWG UTP Part # M56129 Plenum – 200 Pair 24 AWG UTP Part # M57211 Plenum – 300 Pair 24 AWG UTP Part # M58349 Plenum – 400 Pair 24 AWG UTP 35 Columbus State University Telecommunications Design Manual July 5, 2011 4.6 Active Components 4.6.1 Data Switches UITS will create parts configurations for HP Networking E5412zl data switches based on Single-Mode fiber uplink downlink connectivity, CAT6 port counts per wiring closet and other requirements. Allocate 4 data ports in each data closet for UPS, NetBotz, & data capture. Factor in four or more ports for immediate unexpected growth in the first 2 months. (i.e., add 8 or more to your building’s CAT6 patch panel(s) total port count.) Contractors must work closely with UITS to determine final configurations. 4.6.2 Uninterruptible Power Supply: Establish a single UPS room per building for all new building construction and for major renovation projects. o UPS Equipment Per Building: 1 data switch: (1) Part # SYA8K16PXR, APC Symmetra LX 8kVA 2 or 3 data switches: (1) Part # SYA8K16PXR, APC Symmetra LX 8kVA (4) Part # SYBT5, APC Symmetra LX Battery Module 4, 5 or 6 data switches: (1) Part # SYA16K16PXR, APC Symmetra LX 16kVA (4) Part # SYBT5, APC Symmetra LX Battery Module (1) Part # SYAXR9B9, APC Symmetra LX Extended Run Tower Wiring closets for buildings without a single UPS room o UPS Equipment Per wiring closet: 1 data switch with 2 power supplies: (2) Part # SMX2000RMLV2U, APC Smart-UPS X 2000 Rack/Tower LCD, UPS - AC 120 V - 1.8 kW 1920 VA - RS-232, USB - 7 output connector(s) - 2U (1) Part # AP9631, APC Network Management Card 2 with Environmental Monitoring (1) Part # AP9630, APC Network Management Card 2 (2) Part # P6B, APC SurgeArrest Essential 1 data switch with 4 power supplies or 2 data switch with 4 power supplies: (4) Part # SMX2000RMLV2U, APC Smart-UPS X 2000 Rack/Tower LCD, UPS - AC 120 V - 1.8 kW 1920 VA - RS-232, USB - 7 output connector(s) - 2U (1) Part # AP9631, APC Network Management Card 2 with Environmental Monitoring (3) Part # AP9630, APC Network Management Card 2 36 Columbus State University Telecommunications Design Manual July 5, 2011 (2) Part # P6B, APC SurgeArrest Essential 2 data switch with 6 power supplies: (6) Part # SMX2000RMLV2U, APC Smart-UPS X 2000 Rack/Tower LCD, UPS - AC 120 V - 1.8 kW 1920 VA - RS-232, USB - 7 output connector(s) - 2U (1) Part # AP9631, APC Network Management Card 2 with Environmental Monitoring (5) Part # AP9630, APC Network Management Card 2 (2) Part # P6B, APC SurgeArrest Essential Environmental and Physical Access Monitoring Part # NBWL0320, APC Netbotz 320 Wall Appliance Part # NBFD0100B, APC NetBotz Fluid Detector FD100-15ft/4.6m 37 Columbus State University Telecommunications Design Manual July 5, 2011 APPENDIX A- Glossary AEC – Architects, Engineers, and Consultants AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI) - ANSI is the umbrella organization in the United States for the repository and definition of standards. ANSI represents the U.S. in the International Standards Organization (ISO). AMERICAN WIRE GAUGE (AWG) - The standard gauge for measuring the diameter of copper, aluminum, and other conductors ANSI/EIA/TIA 568 - Approved in 1991, this document specifies the standards for commercial building telecommunications wiring in North America. The standard specifically addresses the type of wiring to use, wiring practices, terminations and connections, and cable performance standards. The current version of this standard is 568-B (April 2002) ANSI/EIA/TIA 569 - North American commercial building standard for telecommunications, pathways and spaces. Its purpose is to standardize specific design and construction practices within and between buildings which are in support of telecommunications media and equipment. The current version of this standard is 569-A. BACKBONE - The part of a premises distribution system that carries the heaviest traffic. Includes a main cable route and facilities for supporting the cabling infrastructure. BEND RADIUS - The radius a cable can bend before the risk of breakage or increase in attenuation occurs. Or, the allowable radius a cable can be bent per a particular Standard. BICSI - Building Industry Consulting Services International - BICSI, a not-for-profit telecommunications association, is a world-wide resource for technical publications, training, conferences, and registration programs for low-voltage cabling distribution design and installation. BICSI has over 20,000 members residing in 85 nations. BROADBAND - A network in which the bandwidth can be shared by multiple simultaneous signals that are encoded with radio frequency modulations. CATV (COMMUNITY ANTENNA TELEVISION) - A method of delivering high quality television reception by transmitting signals from a central antenna throughout the community via coaxial cable. CATV is a broadband transmission facility which generally uses a 75W coaxial cable to carry numerous frequency-divided TV channels simultaneously. CCTV (CLOSED CIRCUIT TELEVISION) - In general, a video channel which is broadcast to a limited number of locations. Often used in security applications. COAXIAL CABLE - A type of communication transmission cable in which a solid center conductor is surrounded by an insulating spacer which in turn is surrounded by a tubular outer conductor (usually a braid, foil or both). The entire assembly is then covered with an insulating and protective outer layer. Coaxial cables have a wide bandwidth and can carry many data, voice and video conversations simultaneously. Commonly used for Cable TV (CATV) or older computer networks. CONDUIT - A rigid or flexible metallic or nonmetallic raceway of circular cross section in which cables are housed for protection and to prevent burning cable from spreading flames or smoke in the event of a fire. CONNECTOR – A device that connects wire or fiber in cable to equipment, other wires or fibers. CONNECTING BLOCK - A plastic block that houses metal wiring terminals to provide a connection between two groups of wires. Connecting blocks have Insulation 38 Columbus State University Telecommunications Design Manual July 5, 2011 Displacement Connectors so insulation removed prior to termination is not required. Major block types are 110 and 66. DEMARCATION - A point at which two services may interface and identify the division of responsibility, such as the point of interconnection between telephone company facilities and the user’s terminal equipment. EIA (ELECTRONIC INDUSTRIES ASSOCIATION) - A consultative group of manufacturers recognized as the standards writing group in the United States for electronic equipment. ETHERNET - A baseband local area network used for connecting computers and terminals, etc., within the same building. Ethernet is the basis for the IEEE Standard 802.3. It employs CSMA/CD as the network access method, and is popularly deployed as 10BASET, 100BASET, and 1000BASET, where 10, 100, or 1000 is the data transfer rate in megabits/second, BASE indicates baseband transmission, and T signifies Twisted Pair as the medium. FIBER OPTICS - The technology in which communication signals in the form of modulated light beams are transmitted over a glass or plastic fiber transmission medium, and then demodulated to electrical signals by a light sensitive receiver. FLOOR BOX - A cast iron, stamped steel or nonmetallic box placed in the concrete floor (prior to pouring the concrete slab) of a building which is fed via conduit and used to house voice, data, power and video connections. GSFIC - Georgia State Finance and Investment Commission GTA – Georgia Technology Authority HOME RUNS - A pathway or cable between two locations without a point of access in between. Characterized in star topologies. HORIZONTAL CABLING - The cabling between and including the telecommunications outlet/connector and the horizontal cross connect. HORIZONTAL CROSS CONNECT (HC) - A cross connect of horizontal cabling to other cabling, i.e., horizontal, backbone, equipment. IEEE - Institute of Electrical and Electronics Engineers ISO - International Standards Organization - The body which promotes the development of worldwide standards INTERMEDIATE CROSS CONNECT (IC) - A cross connect between first level and second level backbone cabling. JACK - A receptacle used with a plug to make electrical connection between communication circuits. Jacks are considered the female component of a jack/plug connector. Jacks are typically used at the work area. JACKET - The flexible covering of a cable, used to protect the color-coded conductors inside. Also referred to as a cable's "sheath". JUMPER - An assembly of twisted pairs without connectors used to join telecommunications circuits/links at the cross connect. LOCAL AREA NETWORK (LAN) - A non-public data communications network confined to a limited geographic area used to provide communication between computers and peripherals. MAIN CROSS CONNECT (MC) - A cross connect for first level backbone cables, entrance cables, and equipment cables. METROPOLITAN AREA NETWORK (MAN) - An extended LAN operating within a metropolitan area and provides an integrated set of services for real-time data, voice and image transmission. MULTIMODE OPTICAL FIBER - An optical fiber that will allow many bound modes to propagate. The fiber may be either a grade-index or step-index fiber. Typically used in 39 Columbus State University Telecommunications Design Manual July 5, 2011 premise environments only. Multimode Fiber cores are typically either 62.5 or 50 microns in diameter. See Single Mode Fiber. NATIONAL ELECTRICAL CODE (NEC) - A nationally recognized safety standard for the design, construction, and maintenance of electrical circuits. NETWORK - A formalized definition of the structure and protocols of a computer network. NETWORK INTERFACE - The point of interconnection between telephone company communications facilities and terminal equipment, protective apparatus or wiring at a subscriber’s premises. NODE - In general, any point of interconnection to a network where service is provided, used or communication channels are interconnected. OPTICAL TIME-DOMAIN REFLECTOMETER (OTDR) - An instrument that characterizes cable loss by measuring the backscatter and reflecting of injected light as a function of time. It is most useful for locating splices, connections, and breaks. It is not as useful as a Fiber Optic Test Set for accurately measuring cable attenuation, and should therefore not be used to certify an optical link. PATCH CORD - A short length of copper wire or fiber optic cable with connectors on each end used to join communications circuits as a cross connect. PATCH PANEL - A cross connect system of mateable connectors, utilizing patch cords, that facilitates administration. PATHWAY - A facility for the placement of telecommunications cable. PLENUM – In building construction, the space that is used for air circulation in heating and air conditioning systems, typically between the structural ceiling and the suspended ceiling or under a raised floor. The plenum space is often used to house the communication cables for the building's telecommunications network... In those instances, Plenum cable must be used. PLENUM CABLE - Plenum cable is coated with a fire-retardant coating (usually Teflon) so that in case of a fire it does not give off toxic gasses and smoke as it burns. Required for use in plenum areas. PORT - A functional unit of a node through which data can enter or leave a data network. POWER/COMMUNICATIONS POLE - A raceway placed between the ceiling and floor used in conjunction with a ceiling distribution system for the purpose of distributing communication and power service to a work area. Also called Utility Pole, Service Pole or Ceiling Drop Pole. PRIVATE BRANCH EXCHANGE (PBX) - A private telephone switching system, usually located on a customer’s premises connecting a common group of lines from one or more central offices to provide service to a number of individual phones. Now used interchangeably with PABX (Private Automatic Branch Exchange). PVC - Polyvinyl Chloride. A type of plastic commonly used for cladding telecommunications cable. PUBLIC SWITCHED NETWORK - Any common carrier network that provides circuit switching between public users, such as the public telephone network, telex or MCI’s Execunet. RACEWAY - Any channel designed for holding wires, cables or busbars such as conduit, surface raceways, cellular floors or cable troughs. RCDD - The Registered Communications Distribution Designer is a professional status granted by BICSI based on knowledge of the telecommunications wiring industry. RISER - The conduit or path between floors of a building into which telephone and other utility cables are placed to bring service from one floor to another. 40 Columbus State University Telecommunications Design Manual July 5, 2011 SC - Designation for an optical connector featuring a 2.5mm physically contacting ferrule with a push-pull mating design. This connector is recommended in the ANSI/TIA/EIA568-A Standard for structured cabling. SFF (SMALL FORM FACTOR) - An ANSI/TIA/EIA approved fiber adapter/connector system that provides two fiber strands in a surface area similar to UTP (RJ-style) connection. SHIELD (SCREEN) - A metallic layer usually in the form of a braid or foil surrounding one or more electrical conductors to insulate them from electromagnetic interference. SINGLEMODE OPTICAL FIBER - An optical fiber that will allow only one mode to propagate. This fiber is typically a step index fiber and typically has a core diameter of 8.3 microns. SLEEVES - Short lengths of rigid metal pipe, approximately 4 in. (10.1 cm) in diameter, located in the telecommunications room (IDF), which allow cables to pass from floor to floor when IDFs are vertically aligned. Sleeves also provide for easy pulling of cable. SPLICE - The joining of two or more cables by connecting the conductors pair to pair. Not allowed with twisted pair cables per the 568B Standard. ST - Designation for the “straight tip” connector developed by AT&T. This optical connector features a physically contacting non-rotating 2.5mm ferrule design and bayonet connector-to-adapter mating. STAR - A physical point to point network topology. SURFACE RACEWAY - A cable distribution method in which channels containing cables are run along or within the baseboards of a building. TELECOMMUNICATIONS - For the purposes of this Glossary, a term encompassing voice, audio/visual, and data communications in the form of coded signals transmitted over media. TELECOMMUNICATIONS OUTLET - A device where the horizontal cable terminates in the Work Area (WA). The telecommunications outlet provides the interface to the work area cabling. TELECOMMUNICATIONS ROOM (IDF) - A Telecommunication Room is an enclosed space for housing telecommunications equipment, cable terminations and cross-connect cabling. Typically, this room is used as the location of the horizontal cross-connect and serves a floor. TERMINATION - The act of attaching connectors to bare cabling. In the case of data cabling, terminations must be in accordance with standard wiring codes and standards. TOPOLOGY - The geometric description of the physical or logical connections of a telecommunications system. Typically described as bus, ring or star. TWISTED PAIR CABLE - A type of communication transmission cable in which two individually insulated wires are twisted around each other to reduce induction (thus interference) from one wire to the other. The pair may be surrounded by a shield, insulating jacket or additional pairs of wires. USOC - Universal Service Ordering Codes (USOC) are a series of Registered Jack (RJ) wiring configurations developed by the Bell System for connection of customer premises equipment to the public network. UTP – Unshielded twisted pair copper cable. WIDE AREA NETWORK (WAN) - A communications network designed to serve hundreds or thousands of miles using common carrier-provided lines, such as the nationwide telephone network. Compare with LAN. WORK AREA / WORK STATION (WA) - A building space where the occupants interact with telecommunications equipment. 41