RRU3201 Installation Guide

V100R001

Issue: 01
Part Number: 31504691
Date: 2009-03-15
HUAWEI TECHNOLOGIES Co., Ltd.
Contents

Safety Information …………………….….…………………… 1

Installation Tools ………………….………….……………….. 2
Space Requirements ………………….……..……………….. 3
Installation Modes …………………………………………...... 4
Installation Procedure ………….…………………………….. 5
Components Delivered with the RRU ……………………… 5
Installing the RRU on a Metal Pole …………………………. 6
Installing the RRU on a Wall ………………………………....11
Installing the RRU on a U-Steel …………….………………..12
Installing the RRU on an Angle Steel ……………………....12
Installing the RRU Cables …………………………………….13
RRU Hardware Installation Checklist ……………………….22
Powering On the RRU ………………...……………………….23
Reference ……………………………….………………………..24
Safety Information
Following All Safety Precautions
Before any operation, read the instructions and precautions in this document carefully to minimize the possibility
of accidents.
The Danger, Caution, and Note items in the documents do not cover all the safety precautions that must be
followed. They only provide the generic safety precautions for operations.

When operating Huawei products and equipment, you must comply with safety precautions and special safety
instructions related to corresponding equipment provided by Huawei. The safety precautions in the document
are related to only Huawei products. Huawei is not liable for any consequence that results from the violation of
universal regulations for safety operations and safety codes on design, production, and equipment use.

Complying with the Local Safety Regulations

When operating the device, comply with the local safety regulations. The safety precautions provided in the
documents are supplementary. You must comply with the local safety regulations.

Qualified Personnel Only

The personnel in charge of installation and maintenance must be trained and master the correct operating
methods and safety precautions before beginning work.

Symbols

This symbol indicates that casualty or serious accident may occur if you ignore
the safety instruction.

This symbol indicates that serious or major injury may occur if you ignore the
safety instruction.

This symbol indicates that the operation may be easier if you pay attention to the
safety instruction.

Safety of Personnel
• The high voltage power supply provides power for running the system. Direct contact with the high voltage
power supply or contact through damp objects may result in fatal danger.
• Non-standard and improper high voltage operations may result in fire and electric shock.
• In a thunderstorm, do not perform operations on high voltage and AC power supply facilities or on a steel
tower and mast.
• Ground the device before powering on the device. Otherwise, the personnel and device are in danger.
• Power off the device before performing operations on the power supply equipment.
• High power radio-frequency signals are harmful to human body. Before installing or maintaining an antenna
on a steel tower or mast with a large number of transmitter antennas, the operator should coordinate with all
parties to ensure that the transmitter antennas are shut down.
• When handling optical fibers, do not stand close to, or look into the optical fiber outlet with unaided eyes.
• Protect yourself when drilling holes. Flying dust may hurt your eyes or you may inhale the dust.
• Power off the batteries before connecting the cables to the batteries. Otherwise, casualties may occur.
• When working at a height, be cautious about falling objects.

Device Safety
• Check the electrical connection of the device before operation and ensure that the device is reliably grounded.
• The static electricity generated by the human body may damage the electrostatic sensitive components on
the circuit board, such as the large-scale integrated circuit (LIC). Wear an ESD wrist strap or ESD gloves when
performing the operation.
• When working on batteries, take measures to prevent short circuits in the batteries and electrolyte spill/loss.
The electrolyte may erode metal and boards, or even cause rust of the equipment or short circuits in the boards.

1 Copyright © Huawei Technologies Co., Ltd. 2009. All rights reserved.

Installation Tools

Percussion drill（Ø14） ESD gloves Vacuum cleaner

Cross screwdriver（M3~M6) Straight screwdriver（M3~M6)

Heat gun

Claw hammer Knife Cable peeler

Adjustable wrench
Power cable crimping pliers Wire cutter (with the diameter of at least 32mm)

Combination wrench
(21mm~21mm)for pole installation
Level bar Torque screwdriver (17mm~17mm) for wall installation

Power cable crimping pliers

Multimeter Marking pen
Wire cutter ESD gloves
(with the diameter of no more than 10mm) Long measuring tape

2
Space Requirements (Unit: mm)
a RRU Dimensions
285 170

485

b Recommended Clearance c Minimum Clearance for a

for a Single RRU Single RRU
≥300 200

00 400
≥6

00 100
≥3
≥ 60
0
80
0

≥500 300

d Recommended Clearance for e Minimum Clearance for

Multiple Centralized RRUs Multiple Centralized RRUs

562 562
≥300 200

00 300
≥5

≥ 80
00 80 0
≥5 0 300

≥500 300

3
Installation Modes

On a metal pole On a wall On an angle steel On a U-steel

The following figure shows the specifications of the metal pole, angle steel, and U-steel where the RRU is installed.

60mm～114mm

m
0
8

m
0
5

m
3
6

m
0
3

50mm～100mm
63mm～80mm
Metal pole Angle steel U-steel
The RRU can be installed on the tower. For details, see page 24 Lifting the RRU and
Installation Components to the Tower
The following figures show the installations of multiple RRUs on the metal poles.

4
 Installation Procedure
Start

Prepare the
installation
(slide5)

Install the RRU on a Install the RRU on a Install the RRU on Install the RRU on a
metal pole wall an angle steel U-steel
(slide6~10) (slide11) (slide12) (slide12)

Install the cables of

the RRU
(slide13~21)

Check the
installation
(slide22)

Power on the RRU

(slide23)

End

Components Delivered with the RRU

expansion
bolt Cover plate Attachment plate

M10x110
Bolt

Main
fixture

Auxiliary
fixture

Fixture assembly for Front of the RRU Back of the RRU

installing the RRU

5
Installing the RRU on a Metal Pole
a Installing a Single RRU in Ordinary Mode

Install the main fixture.

1. Before installing the main fixture, ensure that the contact piece
on the fixture is fixed.
2. When installing the main fixture, keep the arrow on the main
fixture upward.

It is recommended that the bottom of the main fixture be 1200

mm to 1600 mm above the ground for easy maintenance.

Arrow

Install the auxiliary fixture between the nuts of the dual-nut bolt assembly on the main fixture.

Ensure that the

arrow on the
Installation position
auxiliary fixture is
for the auxiliary
upward.
fixture.

You may fit one end of the auxiliary fixture on one dual-nut bolt assembly before installation. And then fit the other end
on the other dual-nut bolt assembly during the installation.

6
Installing the RRU on a Metal Pole
Use an adjustable wrench (21 mm) to tighten the nut. In this way, the main and auxiliary
fixtures are securely mounted on the pole.

When tightening the nuts, ensure that the two dual-nut bolt assemblies are tightened simultaneously. The fastening
torque is 35 N• m to 40 N• m.

Install the RRU on the main fixture.

The screw is a non-fixed
one and is for removing
the RRU.

The RF port at the bottom of the RRU does not have load bearing capacity.
Do not place the RRU on the ground on its bottom during the installation.

7
Installing the RRU on a Metal Pole
b Installing Two RRUs in Back-To-Back Mode

Install an RRU first. For details, see Install the main fixture of another RRU.
page 6 Installing a Single RRU in Ensure that the main and auxiliary fixtures
Ordinary Mode. are perfectly fitted.

Reinstall the cover plate and attachment plate on

the second RRU to interchange their positions.

M6x16 M6x16

Install the second RRU on the

Ensure that the cabling cavities of the two RRUs face the same
main fixture.
direction when installing the RRUs.

RRU installed in
reverse mode

Cabling
RRU installed in cavity
ordinary mode

8
Installing the RRU on a Metal Pole
c Installing Multiple RRUs in Centralized Mode

Reinstall the attachment plate on the back and cover

plate on one side to interchange their positions.

M6x16 M6x16

Install an RRU on a main Install another main fixture.

fixture.

Install another RRU on the second main fixture.

The screw is a non-

fixed one and is for
removing the RRU.

9
Installing the RRU on a Metal Pole
c Installing Multiple RRUs in Centralized Mode

Install a third main fixture.

The screw is a non-

Install a third RRU on the third main fixture. fixed one and is for
removing the RRU.

The following figures show the installation positions for a fourth RRU.

10
Installing the RRU on a Wall
Place the auxiliary fixture Drill holes at the anchor points and then install the
on the wall at the expansion bolt assemblies.
installation position and
M10x65 bolt
then mark the anchor Spring washer 10
points by using a marking
Plastic tube
pen. Flat washer 10
Expansion tube

After the expansion bolt is removed,

dispose of the plastic tube.

It is recommended that the bottom of the

Do not hammer the bolt entirely into the expansion tube, and leave 20
auxiliary fixture be 1200 mm to 1600 mm
mm to 30 mm of the bolt outside the wall.
above the ground.

When RRUs are installed on a wall, the specifications of the wall are as follows:
1. When a single RRU is installed on the wall at the back, the wall must have the load capacity of 1.25 kN bolt stress；
2. When a single RRU is installed on the wall at the side, the wall must have the load capacity of 2.0 kN bolt stress.
3. When three RRUs are installed on the wall at the side, the wall must have the load capacity of 6.0 kN bolt stress.

Fit the auxiliary fixture on the Install the main Install the RRU.
expansion bolts downward, and fixture.
then tighten the bolts by using a
combination wrench (17 mm).

11
Installing the RRU on a U-Steel

U-steel

Four installation modes

The procedure for installing the RRU on a U-steel is the same as that for installing the RRU on a metal pole.

Installing the RRU on an Angle Steel

Angle steel

The procedure for installing the RRU on an angle steel is the same as that for installing the RRU on a metal pole.

12
Installing the RRU Cables
a Cable Connections of a Single RRU

PGND cable

Antenna
Feeder jumper
Power cable
CPRI optical cable
Alarm cable
AISG multi-wire cable
Feeder
AISG extension cable

BBU

The RET/MON port on the RRU is multi-functional, and can be installed with either AISG multi-wire cable or
alarm cable. When the length of the AISG multi-wire cable is not enough, you can choose the optional AISG
extension cable.

13
Installing the RRU Cables
b Cable Connections of Multiple RRUs

PGND cable
Feeder jumper
Power cable
CPRI optical cable

Antenna

Antenna
Antenna

BBU

For detail information of the cable, see Cable List on Page 15 and 16.

14
Installing the RRU Cables
c Cable List

Cable Connector Type Connected to…

PGND cable OT terminal Grounding bolt on the RRU

OT terminal Nearest grounding bar

Antenna jumper DIN male connector Ports labeled ANT_TX/RXA and

ANT_RXB on the RRU

DIN male connector Feeder or antenna

Power cable Two OT terminals The blue OT terminal is connected to

socket labeled NEG(-)0 in the RRU
cabling cavity. And the black OT
terminal is connected to socket labeled
RTN(+)0.

Bare wire External power supply

CPRI optical cable DLC connector The connectors labeled 1A and 1B are
connected to port labeled CPRI_W on
the RRU

DLC connector The connectors labeled 2A and 2B are

connected to port labeled CPRI0,
CPRI1 or CPRI2 on the LBBP board of
the BBU.

15
Installing the RRU Cables
c Cable List

Cable Connector Type Connected to…

AISG Standard AISG male Standard AISG female connector of the AISG
extension connector multi-wire cable
cable
Standard AISG Standard AISG male connector of the RCU
female connector

AISG multi- Waterproof DB9 Port labeled RET/MON on the RRU

wire cable connector

Standard AISG Standard AISG male connector of the AISG

female connector extension cable or RCU

Alarm cable DB9 male connector Port labeled RET/MON at the bottom of the RRU

Eight cord end External alarm devices

terminals

16
Installing the RRU Cables

d Opening and Closing the Cover Plate of the RRU Cabling Cavity

• Open the cover plate of the RRU • Close the cover plated of the RRU cabling
cabling cavity cavity

1. The screw on the cover plate is tightened until the fastening torque is 14 N.m.
2. The screws on the cover plate are tightened in the order shown in the preceding figure.

e Cabling Cavity of the RRU

Cable trough for
the optical cable

Cabling Cable trough for the

cavity Power cable

Cover plate of
The cabling
cavity
Waterproof filler

17
安装RRU线缆

f Cable Connections of the RRU

Grounding
bolt
OT terminal
PGND cable
Shielding layer of Strap First wrap the joint
the power cable with the waterproof
tape, and then wrap
the joint with the
PVC insulating tape.
PGND cable
Feeder jumper
Power cable
CPRI optical cable
AISG extension cable

1. Press the strap on the exposed shielding layer of the The tape is wrapped spirally upwards, downwards,
power cable tightly. Ensure that the lower edge of the and then upwards again in three layers. For every two
exposed shielding layer does not exceed the position adjacent tape layers, the tape on the upper layer
shown in the figure. overlaps about half the width of the tape on the lower
2. The shielding layer of the power cable at the end layer.
connecting to the power

For details on how to add the OT terminals to the power cable, see pages 26 to 27
Adding OT Terminals to the Power Cable of the RRU.

18
Installing the RRU Cables
g RRU+APM30/APM30H

Shielding layer

RRU Power PGND

cable cable

RRU power cable

CPRI optical cable

1. The RRU power cable is connected to one group of the LOAD4 to LOAD9 terminals of the PDU.
2. Strip the jacket off the 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/APM30H.

19
Installing the RRU Cables
h RRU+APM30（+24V）

Shielding layer

RRU Power PGND

cable cable

RRU power cable

CPRI optical cable

1. Strip the jacket off the 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.
2. The RRU power cable is connected to one group of the LOAD0 to LOAD5 terminals of the DCDU-03C.

20
Installing the RRU Cables
i RRU+TMC

LOAD0

Shielding layer of the RRU

power cable

RRU power cable

CPRI optical cable

1. When connecting the RRU power cable to the DCDU-03C, you must add an OT terminal to the shielding layer.
Then, fix the OT terminal to the corresponding PGND terminal of the DCDU-03C. For details on how to add an OT
terminal, see pages 26 to 27 Adding OT Terminals to the Power Cable of the RRU.
2. The RRU power cable is connected to one group of the LOAD0 to LOAD5 terminals of the DCDU-03C.

21
RRU Hardware Installation Checklist

No. Items

1 The position for each equipment conforms to the engineering design and meets
the space requirement. Sufficient space is reserved for equipment maintenance.

2 The RRU is properly installed.

3 The cover plate is fastened to the RRU cabling cavity.

4 Waterproof check: The empty cable troughs in the cabling cavity of the RRU are
waterproofed. The cover plate is tightly buckled on the cabling cavity of the RRU.
The RF ports that are not connected with RF cables are capped and
waterproofed.

5 No joint lies in the middle of the power cable or the PGND cable.

6 The lugs at both ends of the power cable or the PGND cable are securely
soldered or crimped.

7 The power cable and PGND cable are not short-circuited or reversely connected
and are not damaged or broken.

8 The working grounding and protection grounding of the base station and the
lightning protection grounding of the building share one group of grounding
conductors.

9 The connectors of signal cables are intact.

10 All labels, tags, and nameplates are correct, legible, and complete. All the labels
at both ends of the cables, jumpers and feeders are legible.

11 Set the power switch to OFF and check the input voltage (-48 V DC power supply:
-36 V DC to -57 V DC. AC power supply: 150 V AC to 300 V AC). Set the power
switch to ON and check the RUN LED (the RUN LED is ON for 1s and OFF for
1s).

22
Powering On the RRU

The RRU should be powered on in 24 hours after being unpacked. The power off duration of the RRU cannot
exceed 24 hours during maintenance.

23
Reference
a Lift the RRU and installation components to the tower.

Tie one end of a rope to the installation components and the other end to the rope for
binding the RRU.

Lifting rope

Steering rope

24
Reference
a Lift the RRU and installation components to the tower.
Lift the RRU and installation components to the tower.

Pulley

Steering
Lifting rope
rope

B C

1. Installer A climbs onto the tower. Then, fixes the pulley to the support of the tower platform and leads the lifting
rope through the pulley.
2. 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.
3. Installer B pulls the lifting rope downwards, 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.
4. Installers A holds the RRU and installation components and unties the ropes

25
Reference
b Adding OT Terminals to the Power Cable of the RRU
OT terminals on the power cable:

-48V DC power cable -48V power wire

OT terminals

Shielding layer GND wire

To assemble the OT terminals, perform the following steps:

Determine lengths of power cables for

different operations according to the
scales on the inner side of the cover
plate of the cabling cavity.

Based on the determined length,

remove the jacket and shielding layer
off the power cable.

Remove the jacket of a specified

length from each wire.

Add an OT terminal to each wire.

Remove about 15 mm jacket off the

power cable to expose the shielding
layer.

26
Reference
b Adding OT Terminals to the Power Cable of the RRU
Assemble an OT terminal on the power cable at the end connecting to the power supply
device.

OT terminal on the
Heat-shrinkable tube PVC insulating tape shielding layer

27
Reference
c Pin Assignment of the RRU AISG Extension cable

Pin of the AISG Pin of the AISG female Wire Color Wire Type Instruction
male connector connector

X1.1 X2.1 White/blue Twisted pair +12V

Blue

X1.7 X2.7 White/orange Twisted pair DC Return A

Orange

X1.3 X2.3 White/green Twisted pair RS485 B

X1.5 X2.5 Green RS485 A

X1.6 X2.6 White/brown Twisted pair +24V

Brown

d Pin Assignment for the Wires of the RRU Alarm Cable

DB9 waterproof Pin Name Wire Color Wire Type Cord End Label
Connector Terminal

X1.2 SWITCH_INPUT0+ White/blue Twisted pair X2 SWITCH_INPUT0+

X1.4 GND Blue X3 GND

X1.7 SWITCH_INPUT1+ White/orange Twisted pair X4 SWITCH_INPUT1+

X1.4 GND Orange X5 GND

X1.6 RS485_TX- White/green Twisted pair X6 APM RX-

X1.8 RS485_TX+ Green X7 APM RX+

X1.3 RS485_RX- White/brown Twisted pair X8 APM TX-

X1.5 RS485_RX+ Brown X9 APM TX+

28
HUAWEI TECHNOLOGIES CO., LTD.
Huawei Industrial Base Bantian Longgang
Shenzhen 518129
People’s Republic of China
www.huawei.com

Issue: 01
Part Number: 31504691
Date: 2009-03-15