RRU3008 V1
Installation Guide
Issue: 24
Date: 2012-10-20
HUAWEI TECHNOLOGIES Co., Ltd.
 This document is applicable to
GSM V100R009C00/V100R012C00/V100R012C02
SRAN V100R002C00/V100R003C00/V100R003C01
 In this document, the actual equipment may differ from what is shown in the figures. The color or the
appearance of the equipment are for reference only.
Contents
1. Installation Tools ………………………………………………………………………………………………….......
2
2. Installing the DC RRU ………………………………………………………………………………………….. ……
3
Installation Modes …………………………………………………………………......... …………................
3
Space Requirements………………………………………………………………….. ………………………
4
Installation Procedure …………………………………………………………………………………………..
6
Preparing for the Installation …………………………………………………………………………………..
6
Installing the RRU on a Metal Pole ………………………………………………………………………….
7
Installing Two RRUs in Back-To-Back Mode ……………………………………………………………….
8
Installing the RRU on U-Steel …………………………………………………………………………………
9
Installing the RRU on Angle Steel ……………………………………………………………………….. ……
9
Installing the RRU on a Wall ………………………………………………………………………………….
10
Installing the RRU on an H-shaped Stand …………………………………………………………………..
12
Cable Connections of a Single RRU …………………………………………………………………………
15
Cable Connections of Multiple RRUs ………………………………………………………………………..
15
Cable List ……………………………………………………………………………………………………….
16
Installing the RRU Cables …………………………………………………………………………………….
18
RRU Cable Installation Scenarios ……………………………………………………………………………
20
3. Installing the AC RRU ………………………………………………………………………………. ………………
36
Space Requirements..………………………………………………………………... ………………………
36
Installation Modes …………………………………………………………………………………………….
36
Installing the Surge Protection Box (for Outdoor Scenarios) ……………………………………………...
37
Cable Connections of a Single RRU …………………………………………………………………………
40
Cable Connections of Multiple RRUs ………………………………………………………………………..
40
List of Cables (No Surge Protection Box Configured) ……………………………………………………..
41
List of Cables (Surge Protection Box Configured) ………………………………………………………….
42
Installing the RRU Cables …………………………………………………………………………………….
44
Installation Checklist ………………………………………………………………………………………….
46
4. Powering On the RRU ………………………………………………………………………………………………
47
5. Appendix ………………………………………………………………………………………………………………
47
Binding the RRU and Installation Components ……………………………………………………………..
47
Making OT Terminals by Using a Cable Peeler (Recommended) ………………………………………...
49
Making OT Terminals at the Input End of the Power Cable by Using a Knife ……………………………
50
Waterproofing Outdoor Cables ……………………………... …………………………………………………
51
Installing the Optical Module ……………………………………………………………………………………
52
Installing the Corrugated Pipes of AC Power Cable ………………………………………………………..
52
Pin Assignment for the Wires of the RRU Alarm Cable (DC) ………………………………………………
52
Mapping Relationship between the Pins in the Input and Output Ports on the USLP2……………………
53
6. Changes History ……………………………………………………………..………..…………….………………….
1
54
Copyright © Huawei Technologies Co., Ltd. 2012. All rights reserved.
Installation Tools
Hammer drill (with bit 14)
Heat gun
Rubber hammer
ESD gloves
Vacuum cleaner
Phillips screwdriver
Flat-head screwdriver
(M3~M6)
(M3~M6)
Crimping pliers
Wire stripper
Adjustable wrench
Guarded blade utility knife
Wire cutter
(with the diameter of at least 32 mm)
Torque wrench
5mm
M3~M6
Combination wrench
(21mm~21mm) for pole installation
Level
Torque screwdriver
(17mm~17mm) for wall installation
Marking pen
Multimeter
(with the diameter of no more
than 10 mm)
2
Measuring tape
Installing the DC RRU
a
Installation Modes
On a metal pole
On U-steel
On angle steel
On a wall
On an H-shaped stand
63 mm to 80 mm
60 mm to 114 mm
(The recommended value is 80 mm.)
30 mm to 50 mm
The following figure describes the specifications for the metal pole, angle steel, and U-steel where the RRU is
installed.
50 mm to 100 mm
63 mm to 80 mm
Metal pole
Angle steel
U-steel
RRU
Angle steel
or U-steel
The angle between
the vertical and the
angle steel or U≤10° steel or angle steel
where the RRU is
installed must be
less than or equal
to 10 degree.
The brackets cannot be
combined when the RRUs
are installed on the wall.
WARNING
 Only one RRU can be installed on a U-steel or an angle steel at the back.
 When installed on a tower, only one RRU can be installed in standard mode or reverse mode. Two RRUs
cannot be installed one a pole in back-to-back mode, and the brackets for more than two RRUs cannot be
combined.
 A single DC RRU can be bound and lifted to a tower. For details, see page 47 "Binding the RRU and
Installation Components".
3
Installing the DC RRU
b
Dimensions and Installation Clearance
Recommended Clearance for a Single
RRU.
RRU Dimensions.
380 mm
170 mm
≥300 mm
The recommended installation
clearance meets the requirements
of the equipment for normal
running and OM. When the
installation space is sufficient, the
recommended installation
clearance can be adopted.
485 mm
500 mm to 10,000 mm
Minimum Clearance for a Single
RRU.
Minimum clearance for the RRU
installed on a tower.
200 mm
The minimum installation clearance meets the
requirements of the equipment for normal running and
heat dissipation, but does not meet the requirements for
Operation and Maintenance (OM) such as checking the
status of the LEDs and opening the maintenance cavity.
When the installation space is restricted, the minimum
installation clearance can be adopted.
200 mm
300 mm
Top view
Auxiliary metal pole
400 mm
Side view
280 mm
300 mm
Top view
100 mm
400 mm
280 mm
600 mm
Main metal pole
4
Main metal
pole
Auxiliary
metal pole
Installing the DC RRU
b
Dimensions and Installation Clearance
Recommended Horizontal Spacing
for Two RRUs Installed in Parallel.
≥300 mm
≥600 mm
Minimum Horizontal Spacing for
Two RRUs Installed in Parallel.
≥600 mm
Recommended Vertical Spacing for
Two RRUs Installed in Parallel.
100 mm
400 mm
400 mm
Minimum Vertical Spacing for Two
RRUs Installed in Parallel.
≥300 mm
200 mm
≥500 mm
300 mm
≥500 mm
300 mm
5
Installing the DC RRU
c
Installation Procedure
Start
Prepare the
installation
Install the RRU
on a metal pole
Install the RRU
on U-steel
Install the RRU
on angle steel
Install the RRU
on a wall
Install the RRU on
an H-shaped stand
Install the RRU
cables
Check the RRU
hardware installation
Power on the RRU
End
d
Preparing for the Installation
Cover plate
Attachment plate
Auxiliary bracket
Dual-nut bolt
Main bracket
Front
Main and auxiliary brackets for the RRU
6
Back
Installing the DC RRU
e
Installing a Single RRU on a Metal Pole
1. Install the main bracket.
When installing the
main bracket,
ensure that the
contact piece on
the bracket is fixed.
1200 mm to 1600 mm
You may fit one end of the auxiliary bracket on one dual-nut bolt assembly and then the other end on the
other dual-nut bolt assembly during the installation.
2. Use an adjustable wrench to tighten the nut until the fastening torque is
40 N·m. In this way, the main and auxiliary brackets are secured on the pole.
Fasten the two dual-nut bolt assemblies
alternatively. After the brackets are secure,
use a tape to measure the spacing between
the main bracket and the auxiliary bracket at
the two sides and ensure that the spacing is
the same.
40 N•m
3. Install the RRU on the main bracket. When you hear click sound, you
can infer that the RRU is in position.
 The weight-bearing capacity of the RF
ports at the bottom of the RRU is low. Do
not place the RRU at its bottom.
 During the operation, place the foam
pad or cardboard under the RRU to
prevent any damage to the housing of
the RRU.
7
Installing the DC RRU
f
Installing Two RRUs Back-To-Back on a Metal Pole
1. Install an RRU. For details, see
page 7 Installing a Single RRU on a
Metal Pole.
2. Install the main fixture for another
RRU.
3. Reinstall the attachment plate and cover plate on the second RRU by
interchanging their positions.
M6X16
5 N•m
4. Install the second RRU on the main bracket.
In reverse mode
In standard mode
Ensure that the cabling
cavities of the two RRUs
face the same direction
when installing the RRUs.
Cabling cavity
8
Installing the DC RRU
g
Installing the RRU on U-Steel
Plan view
U-steel
 The procedure for installing the RRU on U-steel is the same as that on a metal pole.
 Only one RRU can be installed on U-steel.
h
Installing the RRU on Angle Steel
Plan view
Angle steel
 The procedure for installing the RRU on angle steel is the same as that on a metal pole.
 Only one RRU can be installed on angle steel.
9
Installing the DC RRU
i
Installing the RRU on a Wall
1. Place the auxiliary fixture on the wall at the installation position and then
mark the anchor points by using a marking pen.
128 mm
Auxiliary bracket
126 mm
It is recommended that the auxiliary bracket be
1,200 mm to 1,600 mm above the ground.
126 mm
RRU
1,200 mm to 1,600 mm
2. Drill holes at the anchor points and then install the expansion bolt
assemblies.
M10x65 bolt
Spring washer 10
Plastic tube
Ø14
Flat washer 10
Expansion tube
90°
55 mm to 60 mm
Do not hammer the bolt entirely into the
wall. Instead, leave 20 mm to 30 mm of
the bolt outside the wall.
20 mm to 30 mm
After the expansion bolt is removed,
dispose of the plastic tube.
When the RRU is installed on a wall, the requirements are as follows:
 For one RRU, the wall has a weight-bearing capacity of 92 kg.
 The fastening torque of the expansion bolt reaches 30 N·m, the expansion bolt works properly, and no
damages such as cracks are on the wall.
10
Installing the DC RRU
i
Installing the RRU on a Wall
3. Fit the auxiliary bracket on the expansion
bolts downward, and then tighten the bolts
by using a combination wrench 17 mm.
M10
30 N•m
Arrows are upwards
5. Install the RRU.
11
4. Install the main bracket.
Installing the DC RRU
j
Installing the RRU on an H-shaped Stand
2. Adjust the levelness of the stand.
1. Secure the stand.
12
Installing the DC RRU
j
Installing the RRU on an H-shaped Stand
3. Install the horizontal beam.
Pretightening
Tightening
The horizontal beam on the other
side is installed in the same way.
13
Installing the DC RRU
j
Installing the RRU on an H-shaped Stand
4. Install the main bracket.
5. Mount the RRU on the main bracket
M10
30 N•m
Expansion bolt
 Use expansion bolts to fasten the main bracket. Ensure that the expansion tubes and plastic tubes must be
removed before the expansion bolts are installed.
 Use the expansion bolts in the installation kit delivered with the RRU. Do not use other types of expansion
bolts.
 When the RRU is installed on a wall, the angle between the wall and the RRU should not exceed two
degrees.
6. Install the RRU.
Do not install three or four
RRUs on a single H-shaped
stand.
14
Installing the DC RRU
k
Cable Connections of a Single RRU
DC RRU alarm cable
Install the PGND cable
CPRI optical cable
Antenna
DC RRU power cable
Inter-RRU RF cable
AISG multi-wire cable between the
RRU and the RCU
Install the RF jumper
(Inter-RRU RF cable is optional)
Install the DC RRU power cable
RRU RF jumper
RCU
Feeder
Install the CPRI optical cable
AISG extended cable between the
RRU and the RCU
PGND cable
Install the DC RRU alarm
cable(optional)
Install the AISG multi-wire cable
between the RRU and the RCU
(optional)
Install the AISG multi-wire cable
between the RRU and the RCU
(optional)
External power supply
External alarm device
 Two RRUs are connected using an inter-RRU RF cable when these two RRUs share one dual-polarized antenna in
one sector. More than two RRUs cannot be interconnected in one sector.
 On AC-powered electric railways, such as high speed railways, when leaky cables are connected to RRUs installed in
tunnels, high-voltage-resistance DC blocks must be installed between RRU RF jumpers and the leaky cables to protect
the RRUs against damage.
Antenna
Antenna
Cable Connections of Multiple RRUs
Antenna
l
CPRI optical cable
DC RRU power cable
RRU RF jumper
PGND cable
SFP high-speed cable for
cascading
External
power supply
DC RRU alarm cable
External
alarm device
 The RRU does not support the cascading of power cables.
 When two or more RRUs need to be cascaded in the same cell (or in the scenario for capacity
expansion), the alarm cables need to be connected to the RRU in the lowest level for alarm reporting.
15
Installing the DC RRU
m
Cable List
Cable
Connector Type
Connected to…
PGND cable
OT terminal ( M6 )
Grounding bolt on the RRU
(16 mm²)
OT terminal ( M8 )
Nearest grounding bar
RRU RF jumper
DIN male connector
Ports labeled ANT-A and ANT-B on the RRU
DIN male connector
Feeder or antenna
Two OT terminals ( M4 )
 North American standard:
DC RRU power cable
( North American
The OT terminal on the blue wire is connected
standard: 12AWG
to the NEG(-) port on the cabling cavity of the
RRU. The OT terminal on the black wire is
European standard:
connected to the RTN(+) port on the cabling
4 mm² )
cavity of the RRU
 European standard:
The OT terminal on the blue wire is connected
to the NEG(-) port on the cabling cavity of the
RRU. The OT terminal on the brown wire is
connected to the RTN(+) port on the cabling
cavity of the RRU
Bare wire
External power supply
North American standard:
European standard:
CPRI optical cable
DLC connector
Connect the fiber tails labeled 1A and 1B to the
CPRI_W port on the RRU
DLC connector
Connect the fiber tails labeled 2A and 2B to one
of the CPRI0 to CPRI5 ports on the GTMU
16
Installing the DC RRU
m
Cable List
Cable
Connector Type
Connected to…
AISG multi-wire
Waterproof DB9 connector
Port labeled RET on the RRU
Standard AISG female connector
Standard AISG male connector of the AISG
cable between the
RRU and the RCU
extension cable or RCU
AISG extended
Standard AISG male connector
Standard AISG female connector of the AISG
cable between the
multi-wire cable
RRU and the RCU
Inter-RRU RF
Standard AISG female connector
Standard AISG male connector of the RCU
2W2 connector
Port labeled RX_IN/OUT on the upper-level RRU
2W2 connector
Port labeled RX_IN/OUT on the lower-level RRU
SFP200 male connector
the CPRI_E port on the upper-level RRU
SFP200 male connector
the CPRI_W port on the lower-level RRU
DB15 male connector
Port labeled EXT_ALM in the RRU cabling cavity
Eight cord end terminals
External alarm devices
cable
SFP high-speed
cable for
cascading
DC RRU alarm
cable
17
Installing the DC RRU
n
Installing the RRU Cables
1. Opening the Cover Plate of the RRU Cabling Cavity.
M4
2. The Cabling Cavity of the RRU.
Cable trough for the
power cable
Cable trough for the
optical cable
Cable trough for the
power cable
Reference for making
the power cable
Cabling cavity
Cover plate of
the cabling cavity
Waterproofing filler
18
Installing the DC RRU
n
Installing the RRU Cables
3. Cable Connections of RRU.
DC RRU alarm cable
Case 2
Case 1
CPRI optical cable
DC RRU power cable
PGND cable
RRU RF jumper
Shielding layer of
the power cable
Waterproofed
alarm cable
Keep the dustproof caps on vacant feeder connectors. Wrap the feeder
connectors with waterproof tapes for outdoor scenarios, as shown in the
figure.
Dustproof
cap
Waterproof
tape
4. Closing the Cover Plate of
the RRU Cabling Cavity.
Insulating
tape
 Press the strap on the exposed shielding layer of the power cable
tightly. Ensure that the lower edge of the exposed shield layer does not
exceed the position shown in the figure.
 The alarm cable is preferably led out of the RRU from the narrower
cable trough in the middle of the cabling cavity. If the cable trough is
used by the CPRI optical cable, the alarm cable is led from the wider
cable trough near the middle one. In this case, the alarm cable must be
wrapped with 10 to 17 layers of waterproof tape so that the diameter of
the cable reaches 10 mm to 12 mm.
 To avoid sharp bending, the optical cable must be pressed by the
strap next to the power cable during the optical cable installation.
 Waterproof fillers should be installed in the unused cable trough.
 The tape is wrapped spirally upwards, downwards, and then upwards
again in three layers. For every two adjacent tape layers, the tape on the
upper layer overlaps about half the width of the tape on the lower layer.
 For details on how to add the OT terminals to the DC RRU power cable,
see page 49.
19
M4
1.4 N•m
 The screw on the cover plate is tightened
until the fastening torque is 1.4 N•m.
 The screws on the cover plate are tightened
in the order shown in the preceding figure.
Installing the DC RRU
o
RRU Cable Installation Scenarios
1.1 RRU+APM30.
RRU and BBU are on the same site, and the BBU monitors the APM30.
shielding layer (40 mm)
DC RRU power cable
CPRI optical cable
 The DC RRU power cable is connected to one of the LOAD4 to LOAD9 terminals of the PDU.
 Strip the jacket of the DC RRU power cable for a small part, press the exposed shielding layer on the
strap, and then connect the PGND cable on the strap to the nearest grounding bolt on the side in the
APM30.
20
Installing the DC RRU
o
RRU Cable Installation Scenarios
1.1 RRU+APM30.
The RRU and BBU are not on the same site, and the RRU monitors the APM30.
Grounding the shielding layer of the cable:
DC RRU power cable
CPRI optical cable
DC RRU alarm cable
shielding layer (40 mm)
X8 X9 X6 X7
Wire Color
of the Alarm
Cable
Wire
Type
Pins
Port
on the
APMI
Brown
Twisted
X9
TX+
X8
TX-
X7
RX+
X6
RX-
White/brown
Green
White/green
pair
Twisted
pair
PGND cable
 The DC RRU power cable is connected to one of the LOAD4 to LOAD9 terminals of the PDU.
 Strip the jacket of the DC RRU power cable for a small part, press the exposed shielding layer on the strap,
and then connect the PGND cable on the strap to the nearest grounding bolt on the side in the APM30.
 A shielded RRU alarm cable must be used, and a grounding clip must be installed on the cable before the
cable is routed out of the cabinet.
21
Installing the DC RRU
o
RRU Cable Installation Scenarios
1.2 RRU+APM30H(Ver.A).
RRU and BBU are on the same site, and the BBU monitors the
APM30H(Ver.A).
Please see the "RRU+APM30(AC)" on the page20.
The RRU and BBU are not on the same site, and the RRU monitors the
APM30H(Ver.A).
Grounding the shielding layer of the cable:
DC RRU power cable
CPRI optical cable
RRU alarm cable
Surge protection transfer cable between
the HEUA and the USLP2
shielding layer (40 mm)
PGND cable
COM_IN
LOAD4
 The DC RRU power cable is connected to one of the LOAD4 to LOAD9 terminals of the PDU.
 Strip the jacket of the DC RRU power cable for a small part, press the exposed shielding layer on the
strap, and then connect the PGND cable on the strap to the nearest grounding bolt on the side in the
APM30H(Ver.A).
 About mapping relationship between the pins in the input and output ports on the USLP2, see page 53.
 A shielded RRU alarm cable must be used, and a grounding clip must be installed on the cable before
the cable is routed out of the cabinet.
22
Installing the DC RRU
o
RRU Cable Installation Scenarios
1.3 RRU+APM30H(Ver.B).
RRU and BBU are on the same site, and the BBU monitors the
APM30H(Ver.B).
Grounding the shielding layer of the power cable:
DC RRU power cable
shielding layer (40 mm)
CPRI optical cable
PGND cable
RRU0
 The DC RRU power cable is connected to one of the RRU0 to RRU5 terminals of the EPS.
 Strip the jacket of the DC RRU power cable for a small part, press the exposed shielding layer on the
strap, and then connect the PGND cable on the strap to the nearest grounding bolt on the side in the
APM30H(Ver.B).
23
Installing the DC RRU
o
RRU Cable Installation Scenarios
1.3 RRU+APM30H(Ver.B).
The RRU and BBU are not on the same site, and the RRU monitors the
APM30H(Ver.B).
Grounding the shielding layer of the cable:
DC RRU power cable
CPRI optical cable
RRU alarm cable
shielding layer (40 mm)
PGND cable
Surge protection transfer cable between
the CMUA and the USLP2
RRU0
 The DC RRU power cable is connected to one of the RRU0 to RRU5 terminals of the EPS.
 Strip the jacket of the DC RRU power cable for a small part, press the exposed shielding layer on the
strap, and then connect the PGND cable on the strap to the nearest grounding bolt on the side in the
APM30H(Ver.B).
 About mapping relationship between the pins in the input and output ports on the USLP2, see page 53.
 A shielded RRU alarm cable must be used, and a grounding clip must be installed on the cable before
the cable is routed out of the cabinet.
24
Installing the DC RRU
o
RRU Cable Installation Scenarios
1.4 RRU+APM30H(Ver.C).
RRU and BBU are on the same site, and the BBU monitors the
APM30H(Ver.C).
Grounding the shielding layer of the power cable:
DC RRU power cable
shielding layer (40 mm)
CPRI optical cable
PGND cable
RRU0
 The DC RRU power cable is connected to one of the RRU0 to RRU5 terminals of the EPU.
 Strip the jacket of the DC RRU power cable for a small part, press the exposed shielding layer on the
strap, and then connect the PGND cable on the strap to the nearest grounding bolt on the side in the
APM30H(Ver.C).
25
Installing the DC RRU
o
RRU Cable Installation Scenarios
1.4 RRU+APM30H(Ver.C).
The RRU and BBU are not on the same site, and the RRU monitors the
APM30H(Ver.C).
Grounding the shielding layer of the cable:
DC RRU power cable
CPRI optical cable
shielding layer (40 mm)
RRU alarm cable
PGND cable
Surge protection transfer cable between
the CMUE and the USLP2
RRU0
 The DC RRU power cable is connected to one of the RRU0 to RRU5 terminals of the EPU.
 Strip the jacket of the DC RRU power cable for a small part, press the exposed shielding layer on the
strap, and then connect the PGND cable on the strap to the nearest grounding bolt on the side in the
APM30H(Ver.C).
 About mapping relationship between the pins in the input and output ports on the USLP2, see page 53.
 A shielded RRU alarm cable must be used, and a grounding clip must be installed on the cable before
the cable is routed out of the cabinet.
26
Installing the DC RRU
o
RRU Cable Installation Scenarios
2. RRU+19-Inch Stand.
BBU
DCDU-03B
LOAD0
Shielding layer
of DC RRU
power cable
(1) DC RRU power cable
(2) CPRI optical cable
 The DC RRU power cable is connected to one of the LOAD0 to LOAD5 terminals of the DCDU-03B.
 When connecting the DC RRU power cable to the DCDU-03B, you must add an OT terminal to the shielding
layer. Then, fix the OT terminal to the corresponding PGND terminal of the DCDU-03B. For details on how
to add an OT terminal, see page 50.
27
Installing the DC RRU
o
RRU Cable Installation Scenarios
3. RRU+Wall-Mounted BBU.
LOAD0
Shielding layer
of DC RRU
power cable
The DCDU panel must
face right side and the
BBU panel must face
downwards.
(1) DC RRU power cable
(2) CPRI optical cable
 The DC RRU power cable is connected to one of the LOAD0 to LOAD5 terminals of the DCDU-03B.
 When connecting the DC RRU power cable to the DCDU-03B, you must add an OT terminal to the shielding
layer. Then, fix the OT terminal to the corresponding PGND terminal of the DCDU-03B. For details on how to
add an OT terminal, see page 50.
28
Installing the DC RRU
o
RRU Cable Installation Scenarios
4. RRU+H-shaped stand +RRU3004 Rack (-48 V power supply ).
LOAD0
Shielding layer
of DC RRU
power cable
(1) CPRI optical cable
(2) DC RRU power cable
(3) DCDU power cable
(4) RRU RF jumper
The DC RRU power cable is connected to one of the LOAD0 to LOAD5 terminals of the DCDU-03B.
29
Installing the DC RRU
o
RRU Cable Installation Scenarios
5. RRU+H-shaped stand+RRU3004 Rack (220 V power supply ).
(1) CPRI optical cable
(2) DC RRU power cable
(3) 4815 power cable
The DC RRU power cable is connected to the OUTPUT RRU terminal of 4815.
30
(4) RRU RF jumper
Installing the DC RRU
o
RRU Cable Installation Scenarios
6. RRU+PS4890.
LOAD0
Shielding layer
of DC RRU
power cable
(1) DC RRU power cable
(2) CPRI optical cable
 The DC RRU power cable is connected to one of the LOAD0 to LOAD5 terminals of the DCDU-03B.
 When connecting the DC RRU power cable to the DCDU-03B, you must add an OT terminal to the shielding
layer. Then, fix the OT terminal to the corresponding PGND terminal of the DCDU-03B. For details on how
to add an OT terminal, see page 50.
31
Installing the DC RRU
o
RRU Cable Installation Scenarios
7.1. 220 V AC input (4815 installed in the OMB cabinet).
shielding layer (40 mm)
PGND
 The DC RRU power cable is connected to
terminals of the 4815 power system for RRU.
 Strip the jacket of the DC RRU power
cable for a small part, press the exposed
shielding layer on the strap, and then connect
the PGND cable on the strap to the nearest
grounding bolt on the side in the OMB
cabinet.
(1) DC RRU
power cable
(2) CPRI optical
cable
7.2. -48 V DC input (DCDU-03C installed in the OMB cabinet).
shielding layer (40 mm)
PGND
(1) DC RRU
(2) CPRI optical
power cable
cable
The DC RRU power cable is
connected to one of the LOAD0 to
LOAD5 terminals of the DCDU-03B.
32
Installing the DC RRU
o
RRU Cable Installation Scenarios
8.1. RRU+TMC.
LOAD0
Shielding layer
of DC RRU
power cable
(1) DC RRU power cable
(2) CPRI optical cable
 The DC RRU power cable is connected to one of the LOAD0 to LOAD5 terminals of the DCDU-03B.
 When connecting the DC RRU power cable to the DCDU-03B, you must add an OT terminal to the shielding
layer. Then, fix the OT terminal to the corresponding PGND terminal of the DCDU-03B. For details on how
to add an OT terminal, see page 50.
8.2. RRU+TMC11H(Ver.A).
Please see the "RRU+TMC".
33
Installing the DC RRU
o
RRU Cable Installation Scenarios
8.3. RRU+TMC11H(Ver.B).
LOAD0
Shielding layer
of DC RRU
power cable
(1) DC RRU power cable
(2) CPRI optical cable
 The DC RRU power cable is connected to one of the LOAD0 to LOAD5 terminals of the DCDU-03B.
 Strip the jacket of the DC RRU power cable for a small part, press the exposed shielding layer on the strap.
34
Installing the DC RRU
o
RRU Cable Installation Scenarios
8.4. RRU+TMC11H(Ver.C).
Grounding the shielding layer of the power cable:
DC RRU power cable
shielding layer (40 mm)
PGND cable
CPRI optical cable
 The DC RRU power cable is connected to one of the LOAD0 to LOAD5 terminals of the DCDU-11B.
 Strip the jacket of the DC RRU power cable for a small part, press the exposed shielding layer on the strap.
35
Installing the AC RRU
a
Space Requirements
380 mm
250 mm
The recommended/minimal clearance for the
AC RRU/clearance for Two Combined RRUs is
the same as that for the DC RRU. For details,
see page 4 and page 5.
485 mm
The AC RRU cannot be installed at a height of
more than 10 m.
bb
Installation Modes
On a metal pole
On a U-steel
On an angle steel
On a wall
On an H-shaped
stand
The AC RRU cannot be installed at the side. When it is installed in other modes, the procedure is the same as
that of the DC RRU.
For details, see page 7.
Do not install the AC RRU on the tower.
36
Installing the AC RRU
c
Installing the Surge Protection Box (for Outdoor Scenarios)
Installation of the surge protection box.
Dimensions of the surge protection
box.
140 mm
75 mm
305 mm
240 mm
Hoop
iron
Recommended clearance for the surge
protection box.
≥100 mm
Minimal clearance for the surge
protection box.
50 mm
≥500 mm
300 mm
37
Installing the AC RRU
c
Installing the Surge Protection Box (for Outdoor Scenarios)
1. Install the surge protection box on the metal pole.
As shown in the figure, unfasten the screw on
the loop iron with the torque of 4.8 N•m.
Installing the surge protection
box on the wall
Lead the loop iron through the opening
between the back plate of the surge protection
box and the surge protection box.
Circle the loop iron around the metal pole, and
then tighten the screw on the loop iron.
If the pole has a small diameter, there
is a long extra part of the hoop. It is
recommended that the extra part be cut.
 when installing the surge protection box,
you need to dispose of the plastic tube on
the expansion bolt.
 The procedure for installing the surge
protection box on the wall is the same as
that for installing the RRU on the wall. For
details, see page 10.
2. Open the cover of the surge protection box
(by unfastening the screws with the torque of 4.8 N•m).
38
Installing the AC RRU
c
Installing the Surge Protection Box (for Outdoor Scenarios)
3. Connect the power cable
between the surge protection
box and the RRU.
Lead the external AC power cable through the PG connector labeled
IN. The L, N, and PE wires of the power cable are connected to the
Lin, Nin, and PE terminals on the surge protection box.
Lead the power cable between the RRU and the surge protection
box through the PG connector labeled OUT. The Lin, Nin, and PE
wires of the power cable are connected to the Lout, Nout, and PE
terminals on the surge protection box.
Tighten the thread-lock sealing nut, and then use a wrench to further
tighten the connector for one or two laps to ensure its waterproofing
capability.
Insulating
layer
OUT
OUT
IN
 The cable led through the PG connector labeled OUT is the
power cable between the RRU and the surge protection box,
and the cable led through the PG connector labeled IN is the
external AC power cable.
 Install the corrugated pipes for the AC power cables before
installing the AC RRU power cables. For details, see page 52.
4. Close the cover of the surge
protection box.
AC IN
PG connector
Thread-lock
sealing nut
 Lead the cable through the removed thread-lock
sealing nut, and then lead the cable through the PG
connector.
 The removed thread-lock sealing nut of the PG
connector cannot be replaced with the thread-lock
sealing nuts of other surge protection boxes.
 Ensure that the case of the cable insulating layer is
tightly pressed by the strap.
5. Connect the PGND cable.
PGND cable
Equipotential cable
1.4 N•m
39
Installing the AC RRU
d
Cable Connections of a Single RRU
AC RRU monitoring signal cable
Antenna
CPRI optical cable
Inter-RRU RF cable
AISG multi-wire cable between
the RRU and the RCU
RRU RF jumper
Feeder
AISG extended cable between
the RRU and the RCU
PGND cable
AC RRU power cable
Equipotential cable
External
power supply
The AC RRU monitoring signal
cable, equipotential cable
between the power module and
the RRU are installed before
delivery.
Sequence of Installing the Cables: PGND cable → RRU RF jumper → AC RRU power cable→ CPRI optical
cable → AISG multi-wire cable between the RRU and the RCU ( optional ) →AISG extended cable between
the RRU and the RCU ( optional )
e
Cable Connections of Multiple RRUs
CPRI optical cable
RRU RF jumper
External power
supply
40
Antenna
Antenna
PGND cable
Antenna
AC RRU power cable
Installing the AC RRU
f
List of Cables (No Surge Protection Box Configured)
Cable
Connector Type
Connected to…
PGND cable
OT terminal (M6)
Grounding bolt on the RRU
OT terminal (M8)
Nearest grounding bar
DIN male connector
Ports labeled ANT-A and ANT-B on the RRU
DIN male connector
Feeder or antenna
Round connector
Port labeled AC_in on the RRU
To be made depending on
External power supply
(16 mm²)
RRU RF jumper
AC RRU power
cable
(1.5mm²)
field requirements
CPRI optical
DLC connector
cable
Connect the fiber tails labeled 1A and 1B to the CPRI_W
port on the RRU
DLC connector
Connect the fiber tails labeled 2A and 2B to one of the
CPRI0 to CPRI5 ports on the GTMU
AISG multi-wire
Waterproof DB9 connector
Port labeled RET on the RRU
the RRU and the
Standard AISG female
Standard AISG male connector of the AISG extension
RCU
connector
cable or RCU
cable between
41
Installing the AC RRU
f
List of Cables (No Surge Protection Box Configured)
Cable
Connector Type
Connected to…
AISG extended
Standard AISG male
Standard AISG female connector of the AISG multi-wire
cable between
connector
cable
Standard AISG female
Standard AISG male connector of the RCU
the RRU and the
RCU
connector
Inter-RRU RF
cable
SFP high-speed
cable for
cascaded RRUs
g
2W2 connector
Port labeled RX_IN/OUT on the RRU
2W2 connector
Port labeled RX_IN/OUT on the RRU
SFP200 male connector
the CPRI_E port on the upper-level RRU
SFP200 male connector
the CPRI_W port on the lower-level RRU
List of Cables (Surge protection box Configured)
Cable
Connector Type
Connected to…
PGND cable
OT terminal (M6)
Grounding bolt on the surge protection box
(16 mm²)
OT terminal (M8)
Nearest grounding bar
CPRI optical
DLC connector
Connect the fiber tails labeled 1A and 1B to the CPRI_W
cable
port on the RRU
DLC connector
Connect the fiber tails labeled 2A and 2B to one of the
CPRI0 to CPRI5 ports on the GTMU
RRU RF jumper
DIN male connector
Ports labeled ANT-A and ANT-B on the RRU
DIN male connector
Feeder or antenna
42
Installing the AC RRU
g
List of Cables (Surge protection box Configured)
Cable
Connector Type
Connected to…
Power cable between
Round connector
Port labeled AC IN on the RRU
OT terminal
The Lout, Nout, and PE terminals on the surge
RRU and the surge
protection box
protection box
(1.5 mm²)
External AC input
power cable
(4 mm²)
OT terminal
The Lin, Nin, and PE terminals on the surge
protection box
To be made depending on
External power supply
field requirements
AISG extended cable
Standard AISG male
Standard AISG female connector of the AISG multi-
between the RRU and
connector
wire cable
Standard AISG female
Standard AISG male connector of the RCU
the RCU
connector
Inter-RRU RF cable
AISG multi-wire cable
between the RRU and
the RCU
SFP high-speed cable
for cascaded RRUs
2W2 connector
Port labeled RX_IN/OUT on the upper-level RRU
2W2 connector
Port labeled RX_IN/OUT on the lower-level RRU
Waterproof DB9 connector
Port labeled RET/PWR_SRXU on the RRU
Standard AISG female
Standard AISG male connector of the AISG extension
connector
cable or RCU
SFP200 male connector
the CPRI_W port on the upper-level RRU
SFP200 male connector
the CPRI_E port on the lower-level RRU
43
Installing the AC RRU
h
Installing the RRU Cables
The cabling cavity of the AC RRU is the same as that of the DC RRU.
The procedures for opening and closing the cover for the cabling cavity of the AC RRU are the same as
those for opening and closing the cover for the cabling cavity of the DC RRU.
Cable Connections of RRU
CPRI optical cable
AC RRU monitoring signal cable
AC RRU power cable
Equipotential cable
RRU RF jumper
PGND cable
Keep the dustproof caps on vacant feeder connectors. Wrap the feeder
connectors with waterproof tapes for outdoor scenarios, as shown in the
figure.
Dustproof
cap
Waterproof
tape
Insulating
tape
Wrap the RF jumper for the RRU with the waterproof tape, and then wrap it with the PVC insulating tape.
Install the corrugated pipes for the AC power cables before installing the AC RRU power cables. For details,
see page 52.
44
Installing the AC RRU
h
Installing the RRU Cables
CPRI optical cable
Power cable between RRU and the surge protection box
External AC input power cable
Equipotential cable
PGND cable
 for Outdoor Scenarios
 for Indoor Scenarios
External power
supply system
External power
supply system
The maximum length of the external AC input power cable is 70 m for the 110 V AC single-phase
power cable and 100m for the 220 V AC single-phase power cable.
45
Installing the AC RRU
i
Installation Checklist
1. The PG connectors labeled IN and OUT on the surge protection box are securely
installed and cannot be rotated with the cables.
2. The waterproof gaskets on the door of the cabling cavity of the surge protection box are
not stripped or broken.
3. The OT terminals of the cables connected to the surge protection box are securely
linked. The jackets of the cables are not damaged, and there are no uneven edges on the
cables.
4. The PG connectors are tightened, and the waterproof rings are secure.
5. The six screws on the cabling cavity of the surge protection are tightened according to
the required fastening torque.
6. The axis for the door of the cabling cavity of the surge protection box is not broken, and
the surface of the protection box is not scratched.
7. The cables in the surge protection box are correctly connected by referring to the
operation guide. The OT terminals are tight linked before the door of the cabling cavity is
closed.
8. The power supply to the surge protection box is cut off before installation and
maintenance.
9. The installation and maintenance of the surge protection box is not performed in rainy
or damp weather.
46
Powering On the RRU
Start
Power on the RRU
Rectify the fault
Check whether
the status of the RUN LED
is 1s ON, 1s OFF and that of
ALM LED is OFF.
Yes
End
No
When the RRU is unpacked, it must be powered on
within 24 hours. Each time the RRU is maintained after
being put into use, the power-off duration cannot
exceed 24 hours.
Appendix
a
Binding the RRU and Installation Components
1. Bind the RRU by leading the lifting rope along the lower part of the adapting piece
and through the handle, bind the main and auxiliary brackets with the lifting rope, and
then bind the steering rope with the handle of the RRU, as shown in the following
figures.
Lifting rope
Steering
rope
Lower part of the
adapting piece
 When lifting the RRU and installation components to the tower,
prevent the RRU from colliding with the tower.
 The cross-sectional area of the lifting rope and steering rope is
around 20 mm, not more than 25 mm. In addition, the ropes can bear
the weight four times more than that of the RRU.
 Do not install the AC RRU on the tower.
47
Do not bind the lifting rope
only on the handle when
lifting the RRU.
Appendix
a
Binding the RRU and Installation Components
2. Lifting the RRU and Installation Components to the Tower
Pulley
Steering rope
Lifting rope
 Installer A climbs onto the tower. Then, installer
A fixes the pulley to the support of the tower
platform and leads the lifting rope through the
pulley.
 Installer C uses a lifting rope to bind the RRU
and installation components as shown in the
preceding figure and then ties a knot in the steering
rope at the handle of the RRU.
 Installer B pulls the lifting rope, and at the same
time, installer C pulls the steering rope away from
the tower to prevent the RRU and installation
components from colliding with the tower.
 Installer A holds the RRU and installation
components and untie the ropes.
 The procedure for hoisting the RRU and
auxiliary components onto the tower is for your
reference only.
3. Lifting the CPRI Optical Cable up to the Tower
 Cut off a 200 mm long corrugated pipe with the
diameter of 25 mm.
 Lead the fiber tails labeled 1A and 1B of the
optical cable into the corrugated pipe by 160 mm.
 Wrap up the corrugated pipe and optical cable
with the color tape.
 For the tower made of steel pipes, tie the black
jacket to the corrugated pipe at the position 150 mm
away from the color tape, and then lift the optical
cable up to the tower.
 For the tower made of angle steel girders, carry
the optical cable onto the tower when climbing up to
the tower.
 After the optical cable is lifted up to the tower,
remove the color tape and corrugated pipe before
installing the optical cable.
48
Corrugated pipe
Color tape
Appendix
b
Making OT Terminals by Using a Cable Peeler (Recommended)
Add two OT terminals to the end of the power cable connecting to the RRU.
-48V DC power cable
NEG (-)
OT terminals
Label for preparing
the power cable
Shielding layer RTN (+)
Determine lengths of power cables for different
operations according to the scales on the inner
side of the cover plate of the cabling cavity.
0
10 20 30 40
Based on the determined length, remove the
jacket and shielding layer off the power cable.
14mm
Remove the jacket from each wire.
8mm
Add an OT terminal to each wire.
Strip a 15 mm jacket off the power cable to
reveal the shielding layer of the power cable
15mm
The assembling of OT terminals to the power cable must be complete before the RRU is installed on a
metal pole.
49
Appendix
c
Adding OT Terminals to the Power Cable on the DCDU side
Lead the wires
made of the
shielding layers
through heatshrinkable tubes.
Wrap the PVC
insulating tape
at the joint
where the three
wires meet.
WARNING
Do not damage the shielding layer of the power cable when cutting around the jacket.
50
OT terminal on
the shielding
layer
Appendix
d
Waterproofing Outdoor Cables
 The waterproof tape should be wrapped for an extra length of 20 mm away from the
connectors at both ends.
 The tapes should be wrapped around the connector from the lower part to the upper
part. When wrapped for another layer, the tapes may not be cut.
 When wrapping the waterproof tape, apply even force to extend the tape until the length
of the tape is twice its original length. Stretch an press the tape tightly to avoid wrinkles or
spaces. Ensure that the tape is tightly wrapped and stuck and will not fall off.
 When wrapping the waterproof tape, ensure that the upper layer of the tape covers at
least 50% of the lower layer.
 The insulating tape should be wrapped for an extra length of 20 mm away from the
connectors at both ends.
 The last layer of the waterproof tape should be wrapped from the lower part to the
upper part to prevent rainwater from infiltrating into the tape.
Waterproof tape
Insulating tape
1. Wrap three layers of waterproof tape.
Tightly pressing the tape
2. Wrap three layers of insulating tape.
tie
tie
Tightly pressing the tape
e
Binding cable ties at both
ends of the tape
Installing the Optical Module
Before installing the optical fiber, check that
the optical module is the single-mode optical
module or the multi-mode module.
 The single-mode optical module is labeled
"SM" and the multi-mode optical module is
labeled "MM".
 If the puller of an optical module is blue,
the module is a single-mode optical module. If
the puller of an optical module is black or grey,
the module is a multi-mode optical module.
51
Appendix
f
Installing the corrugated pipes of AC power cable
 After the corrugated pipe is installed, wrap both ends of the power
cable with waterproof tapes by referring to the following figure.
 Wrap the joint spirally upward, downward, and then upward again.
That is, the joint is wrapped by three layers of the tape. Ensure that two
adjacent layers overlap with each other about half the width of the tape.
Waterproof
tapes
Waterproof
tapes
Connector for corrugated pipes
Power
system
Corrugated pipes
Corrugated pipes
Corrugated pipes
g
Pin Assignment for the Wires of the RRU Alarm Cable (DC)
DB15
connector
Signal name of
DB15 connector
Cord End
Terminal
Wire
Color
Wire Type
Label
X1.2
SWITCH_INPUT0+
X2
White/blue
Twisted pair
SWITCH_INPUT0+
X1.3
GND
X3
Blue
X1.6
SWITCH_INPUT1+
X4
White/orange
X1.7
GND
X5
Orange
X1.10
RX485_TX-
X6
White/ green
X1.11
RX485_TX+
X7
Green
X1.13
RX485_RX-
X8
White/ brown
X1.14
RX485_RX+
X9
Brown
52
GND
Twisted pair
SWITCH_INPUT1+
GND
Twisted pair
APM RXAPM RX+
Twisted pair
APM TXAPM TX+
Appendix
h
Mapping Relationship between the Pins in the Input and
Output Ports on the USLP2
Table1 Mapping relationship between the input ports and the output ports
on the USLP2
Input
Output
Label
Pin
Label
Pin
IN0
IN0.1
OUT1
OUT1.1
IN1
IN0.2
OUT1.2
IN0.3
OUT1.4
IN0.4
OUT1.5
IN1.1
OUT1.3
IN1.2
OUT1.6
IN1.3
OUT1.7
IN1.4
IN2
IN3
IN2.1
OUT1.8
OUT0
OUT0.1
IN2.2
OUT0.2
IN2.3
OUT0.4
IN2.4
OUT0.5
IN3.1
OUT0.3
IN3.2
OUT0.6
IN3.3
OUT0.7
IN3.4
OUT0.8
Table 2 Mapping relationship between the cord end terminals on the RRU
monitoring signal cable and the pins in the input and output ports on the
USLP2
USLP2
Monitoring Signal Cable for the
RRU
OUT1 IN0
OUT1 IN0.1
Label on the cord end terminals
TX+
IN0.2
TX-
IN0.3
RX+
IN0.4
RX-
The four unused cord end terminals must be cut off
and the wires must be wrapped with insulating tape
so that short circuit does not occur.
53
Change History
This describes the changes in the RRU3008 V1 Installation Guide.
24 (2012-10-20)
This is the twenty-fourth official release.
Compared with issue 23 (2012-09-10), this issue
1.Added the product versions that are related to this document.
2.Modified the caution in the Appendix d.
23 (2012-09-10)
This is the twenty-third official release.
Compared with issue 22 (2011-12-30), this issue added a table in the Appendix h.
22 (2011-12-30)
This is the twenty-second official release.
Compared with issue 20 (2011-10-20),
1. Changed the method for wrapping waterproof tape around feeder connectors.
2. Added the product versions that are related to this document.
3. Modified the information about stripping an RRU power cable before installing a ground clip
on the APM or TMC side.
4. Added the information about the RRU alarm cable.
21 (2011-10-20)
This is the twenty-first official release.
Compared with issue 20 (2011-08-30), modified some figures in the sections
"RRU+APM30H(Ver.C)" and "RRU+TMC11H(Ver.C)".
20 (2011-08-30)
This is the twentieth official release.
Compared with issue 19(2011-06-10),
1. Add the caution "Do not install the AC RRU on the tower".
2. Add the caution "The AC RRU cannot be installed at a height of more than 10 m".
3. Add the caution about routing AC power cables through pipes.
4. The installation scenarios of APM30H(Ver.C), TMC11H(Ver.C) are added.
5. Add the Appendix h "Mapping Relationship between the Pins in the Input and Output Ports
on the USLP2".
19 (2011-06-10)
This is the nineteenth official release.
Compared with issue 18 (2011-03-30) , this issue modified some descriptions.
18 (2011-03-30)
This is the eighteenth official release.
Compared with issue 17 (2011-01-20) , this issue modified some descriptions.
17 (2011-01-20)
This is the seventeenth official release.
Compared with issue 16 (2010-12-15) , this issue modified some descriptions.
54
HUAWEI TECHNOLOGIES CO., LTD.
Huawei Industrial Base Bantian Longgang
Shenzhen 518129
People’s Republic of China
www.huawei.com