Huawei RRU3908 V1 Manuale utente
HUAWEI TECHNOLOGIES Co., Ltd.
RRU3908 V1
V100R003
Installation Guide
Issue: 02
Date: 2010-07-20
1
Contents
Copyright © Huawei Technologies Co., Ltd. 2010. All rights reserved.
1. Installation Tools …………………………………………………………………………………………….
2. Installing the DC RRU ………………………………………………………………………………………
Installation Modes …………………………………………………………………………………….
Space Requirements …………………………………………………………………….. …………
Installation Procedure ………………………………………………………………………………….
Preparing for the installation ………………………………………………………………………….
Installing the RRU on a Metal Pole ………………………………………………………………….
Installing the RRU on a U-Steel …………………………………………………………………….
Installing the RRU on an Angle Steel ………………………………………………………………
Installing the RRU on a Wall …………………………………………………………………………
Cable Connections of a Single RRU ………………………………………………………………
Cable Connections of Multiple RRUs ………………………………………………………………
Cable List ……………………………………………………………………………………………...
Installing the RRU Cables ……………………………………………………………………………
RRU Cable Installation Scenarios …………………………………………………………………
3. Installing the AC RRU ………………………………………………………………………………... ……
Space Requirements ………………………………………………………………….. ……………
Installation Modes ……………………………………………………………………………………
Installing the Surge Protection Box (for Outdoor Scenarios) ……………………………………
Cable Connections of a Single RRU ……………………………………………………………….
Cable Connections of Multiple RRUs ………………………………………………………………
List of Cables (No Surge Protection Box Configured) ……………………………………………
List of Cables (Surge protection box Configured) ………………………………………………...
Installing the RRU Cables ……………………………………………………………………………
Installation Checklist ………………………………………………………………………………….
4. Powering On the RRU ………………………………………………………………………………………
5. Appendix ……………………………………………………………………………………………………
Binding the RRU and Installation Components …………………………………………………..
Making OT Terminals by Using a Cable Peeler (Recommended) ……………………………...
Making OT Terminals at the Input End of the Power Cable by Using a Knife …………………
Waterproofing Outdoor Cables ……………………………... ………………………………………
Installing the Optical Module …………………………………………………………………………
Installing the Corrugated Pipes of AC Power Cable ……………………………………………..
Pin Assignment for the Wires of the RRU Alarm Cable (DC) ……………………………………
6. Changes History ……………………………………………………………..………..…………..……….
2
3
3
4
6
6
7
9
9
10
13
13
14
16
18
23
23
23
24
27
27
28
29
31
33
34
34
34
36
37
38
38
39
39
40
2
Installation Tools
5mm
M3~M6
Multimeter
Guarded blade utility knife
Hammer drill (with bit 14) Vacuum cleaner
Rubber hammer
ESD gloves
Heat gun Flat-head screwdriver
(M3~M6)
Wire stripper
Wire cutter Adjustable wrench
(with the diameter of at least 32 mm)
Measuring tape
Level
Marking pen
(with the diameter of no more
than 10 mm)
Combination wrench
(21mm~21mm) for pole installation
(17mm~17mm) for wall installation
Phillips screwdriver
(M3~M6)
Torque wrench
Crimping pliers
Torque screwdriver
3
On a metal pole On a wall
On an angle steelOn a U-steel
aInstallation Modes
Installing the DC RRU
63mm
～
80mm
63 mm to 80 mm
63 mm to 80 mm
50 mm to 100 mm
30 mm to 50 mm
≤10°
RRU
Angle steel
or U-steel
The following figure describes the specifications for the metal pole, angle steel, and U-steel where the RRU is
installed.
Angle steel U-steel
The brackets cannot be
combined when the RRUs
are installed on the wall.
zA maximum of two RRUs can be installed on a metal pole with the diameter of 60 mm to 76 mm, and the
RRUs must be installed on the back.
zOnly one RRU can be installed on a U-steel or an angle steel at the back.
zWhen installed on a tower, only one RRU can be installed in standard mode or reverse mode, and two RRUs
cannot be installed in back-to-back mode, or the brackets cannot be combined when the RRUs are installed on
the tower.
zA single DC RRU can be bound and lifted to a tower. For details, see page 34 "Binding the RRU and
Installation Components."
WARNING
The angle between
the vertical and the
angle steel or U-
steel or angle steel
where the RRU is
installed must be
less than or equal
to 10 degree.
60 mm to 114 mm
(The recommended value is 80 mm.)
Metal pole
4
Installing the DC RRU
bDimensions and Installation Clearance
Minimum Clearance for a Single RRU
RRU Dimensions
≥300 mm
≥500 mm
≥800mm
≥600mm
≥300mm
380 mm 170 mm
485 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.
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.
Minimum clearance for the RRU installed on
a tower
200 mm
300 mm
400mm
100mm
600mm
400 mm
100 mm
600 mm
Top view
200 mm
300 mm
280mm
400mm
400 mm 280 mm
Auxiliary metal pole
Main metal pole
Side viewTop view
Main metal
pole Auxiliary
metal pole
Recommended Clearance for a Single RRU
280 mm
5
≥300 mm ≥600 mm ≥600 mm 100 mm 400 mm 400 mm
≥500 mm
≥500 mm
≥300 mm
Recommended Horizontal Spacing for
Two RRUs Installed in Parallel Minimum Horizontal Spacing for Two
RRUs Installed in Parallel
Recommended Vertical Spacing for Two
RRUs Installed in Parallel Minimum Vertical Spacing for Two
RRUs Installed in Parallel
Installing the DC RRU
300 mm
300 mm
200 mm
bDimensions and Installation Clearance
6
cInstallation Procedure
dPreparing for the Installation
Installing the DC RRU
Dual-nut bolt
Main bracket
Auxiliary bracket Cover plate Attachment plate
Main and auxiliary brackets for the RRU Front Back
7
1200 mm～1600 mm
40N•m
When installing the
main bracket,
ensure that the
contact piece on
the bracket is fixed.
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.
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.
zThe weight-bearing capacity of the RF
ports at the bottom of the RRU is low. Do
not place the RRU at its bottom.
zDuring the operation, place the foam
pad or cardboard under the RRU to
prevent any damage to the housing of
the RRU.
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.
1. Install the main bracket.
eInstalling a Single RRU on a Metal Pole
3. Install the RRU on the main bracket. When you hear click sound, you can infer that
the RRU is in position.
Installing the DC RRU
15
Installing the DC RRU
lCable List
External alarm devicesEight cord end terminals
Port labeled EXT_ALM in the RRU cabling
cavity
DB15 male connectorDC RRU alarm
cable
Port labeled RX_IN/OUT on the lower-level
RRU
2W2 connector
Port labeled RX_IN/OUT on the upper-level
RRU
2W2 connectorRF cable between
RRUs
the CPRI_W port on the lower-level RRUSFP200 male connector
the CPRI_E port on the upper-level RRUSFP200 male connectorSFP high-speed
cable for
cascading
Standard AISG male connector of the RCUStandard AISG female connector
Standard AISG female connector of the AISG
multi-wire cable
Standard AISG male connectorAISG extended
cable between the
RRU and the RCU
Standard AISG male connector of the AISG
extension cable or RCU
Standard AISG female connector
Port labeled RET on the RRUWaterproof DB9 connectorAISG multi-wire
cable between the
RRU and the RCU
Connected to…Connector TypeCable
16
Installing the DC RRU
mInstalling the RRU Cables
1. Opening the Cover Plate of the RRU Cabling Cavity
2. The Cabling Cavity of the RRU
Cover plate of
the cabling cavity
Cabling cavity
Reference for making
the power cable
M4
Waterproofing filler
Cable trough for the
power cable
Cable trough for the
optical cable
Cable trough for the
power cable
Indice
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