Huawei RRU3203 Users Guide

RRU3203 V100R001C01

Installation Guide

Issue: 01
Date: 2010-04-13

HUAWEI TECHNOLOGIES CO., LTD.

Contents

Installation Tools ……………………………………
Space Requirements …………………………………
Installation Modes ……………………………………
Installation Procedure ………………………………
Components Delivered with the RRU ……………
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 Wall …………………………
Installing the RRU Cables …………………………

2
3
4
6
6

7
11
11
12
14

RRU Hardware Installation Checklist ……………
Powering On the RRU ………………………………
Appendix………………………………………………
Change History …………………………………...…

20
20
21
26

1

Copyright © Huawei Technologies Co., Ltd. 2010. All rights reserved.

Installation Tools

Hammer drill (with bit 14)

Heat gun

Claw hammer

ESD gloves

Phillips screwdriver

(M3~M6)

Knife

Torque socket

Vacuum cleaner

Flat-head screwdriver

(M3~M6)

Wire stripper

Power cable crimping pliers

Torque wrench

Level

Multimeter

Wire cutter

Torque screwdriver

Marking pen

(with the diameter of no more

than 10 mm [0.4 in.])

2

Adjustable wrench

(with the diameter of at least 32 mm [1.3 in.])

Combination wrench

(21mm~21mm) for pole installation
(17mm~17mm) for wall installation

Measuring tape

Installation Options

On a metal pole

On a U-steel

On an angle steel

On a wall

The following figure describes the specificati ons for the metal pole, angle steel, a nd U-steel where the RRU is
installed.

60 mm [2.4 in.] to 114 mm [4.5 in.]

80mm

～

63mm

50 mm [2 in.] to 100 mm [3.9 in.]

30 mm [1.2 in.] to 50 mm [2.0 in.]

RRU

Metal pole

63 mm [2.5 in.] to 75 mm [3 in.]

63 mm [2.5 in.] to 75 mm [3 in.]

Angle steel U-steel

The angle between
the vertical and the
angle steel or U-

Angle steel
or U-steel

≤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.

z A maximum of two RRUs can be installed on a metal pole with a diameter of 60 mm [2.4 in.] to 75 mm [3 in.] ,
and the installation mode must be standard mode. Three or more RRUs must be installed on a metal pole with
a diameter of 76 mm [3 in.] to 114 mm [4.5 in.] in a centralized way.

z It is recommended that only one RRU be installed on a U-st eel or an angl e st eel .
z When installed on a tower, one RRU can be installed only in standard mode or reverse mode rather than

side-mounted. Two RRUs cannot be installed in back-to-back mode.

3

Dimensions and Installation Clearance

Dimensions of the RRU

a

≥3

b

381 mm [15.0 in.]

Recommended Clearance for a
Single RRU

≥300 mm [11.8 in.]

0

0

m

m

[

1

1

.

8

i

n

.

]

170 mm [6.7 in.]

485 mm [19.1 in.]

Minimum Clearance for a Single

c

RRU

1

0

0

m

m

[3

.9

200 mm [7.9 in.]

i

n

.

]

≥

]

.

n

i

5

.

≥

1

3

[

m

m

0

0

8

≥500 mm [19.7 in.]

≥

Recommended Clearance for

d

Multiple Centralized RRUs

≥300 mm [11.8 in.]

]

.

n

i

7

.

9

1

[

m

m

0

0

5

]

.

n

i

6

.

3

2

[

6

0

0

m

m

[

2

3

.

6

i

n

.

]

e

]

.

n

i

7

.

9

1

[

m

m

0

0

5

≥

≥

8

0

0

m

m

[

3

1

.

5

i

n

m

0

0

3

.

]

m

m

0

0

6

300 mm [11.8 in.]

Minimum Clearance for Multiple
Centralized RRUs

200 mm [7.9 in.]

]

.

n

i

8

.

1

1

[

m

4

0

0

m

m

[1

5

.

7

i

n

.

]

]

.

n

i

8

.

1

1

[

m

m

0

0

3

6

0

0

m

m

[

2

3

.

6

i

n

.

]

≥500 mm [19.7 in.]

300 mm [11.8 in.]

4

Dimensions and Installation Clearance

Recommended Horizontal Spacing for

f g

Two RRUs Installed in Parallel

≥300 mm

[11.8 in.]

≥600 mm

[23.6 in.]

≥600 mm

[23.6 in.]

Recommended Vertical Spacing for

h

Two RRUs Installed in Parallel

Minimum Horizontal Spacing for Two
RRUs Installed in Parallel

100 mm
[3.9 in.]

400 mm
[15.7 in.]

Minimum Vertical Spacing for Two

i

RRUs Installed in Parallel

400 mm
[15.7 in.]

≥300 mm [11.8 in.]

≥500 mm [19.7 in.]

200 mm [7.9 in.]

300 mm [11.8 in.]

≥500 mm [19.7 in.]

300 mm [11.8 in.]

5

Installation Procedure

Start

Prepare the

installation

Install the RRU on a

metal pole

Install the RRU on a

U-steel

Install the RRU

Checking the RRU

Hardware Installation

Power on the RRU

Preparing the Installation

Install the RRU on an

angle steel

cables

End

Install the RRU on a

wall

Auxiliary bracket

Dual-nut bolt

Main bracket

Main and auxiliary brackets for the RRU

6

Cover plate

Front Back

Attachment plate

Installing the RRU on a Metal Pole

a

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 [47.2 in.]～

1600 mm [63 in.]

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 [354
lbf•in.]. In this way, the main and auxiliary brackets are secured on the pole.

40 N•m

[354 lbf•in.]

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.

3. Install the RRU on the main bracket. When you hear click sound, you can infer that
the RRU is in position.

z The weight-bearing capacity of the RF
ports at the bottom of th e RRU is low. Do
not place the RRU at its bott om.

z 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 RRU on a Metal Pole

Installing Two RRUs Back-To-Back on a Metal Pole

b

1. Install an RRU. For details, see page 7

Installing a Single RRU on a Metal Pole.

3. Reinstall the attachment plate and cover plate on the second RRU by interchanging

their positions.

2. Install the main fixture for another RRU.

4. Install the second RRU on the main bracket.

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

M6X16

4.8 N•m

[42.5 lbf•in.]

In reverse mode

In standard mode

8

Cabling cavity

Installing the RRU on a Metal Pole

Installing Multiple RRUs in Centralized Mode

c

1. Install the main fixture and the auxiliary fixture. For details, see page 7

Installing a Single RRU in Ordinary Mode.

2. Relocate the attachment plate.

4. Install the second main fixture.3. Fit the tabs on the attachment plate of the

RRU into the anchor slots on the main fixture.

M6X16

4.8 N•m

[42.5 lbf•in.]

5. Fit the tabs on the attachment plate of
the second RRU into the anchor slots on
the second main fixture.

6. Install the third RRU.

9

Installing the RRU on a Metal Pole

Installing Multiple RRUs in Centralized Mode

c

7. Install the fourth main fixture.

8. Fit the tabs on the attachment plate of
the fourth RRU into the anchor slots on
the fourth main fixture.

9. Four RRUs installed in centralized mode. 10. Six RRUs installed in centralized mode.

10

Installing the RRU on a U-Steel

U-steel

Plan view

z The procedure for installing the RRU on a U-steel is the same as t hat for installing the RRU on a metal pole.
z It is recommended that only one RRU be installed on a U-steel.

Installing the RRU on an Angle Steel

Plan view

Angle steel

z The procedure for installing t he RRU o n an a ngl e st eel is th e sam e as tha t f or i nst allin g t h e RRU on a met a l
pole.

z It is recommended that only one RRU be installed on an angle steel.

11

Installing the RRU on a Wall

1. Place the auxiliary bracket at the installation position. Use a level to check that the
auxiliary bracket is placed horizontally. Then, mark the anchor points by using a
marking pen.

≥650 mm

[25.6 in.]

Level

1200 mm [47.2 in.]

to 1600 mm [63.0 in.]

≥650 mm

[25.6 in.]

126.5 mm
[5 in.]

128 mm

[5 in.]

126.5 mm
[5 in.]

RRU

z It is recommended that the auxiliary bracket be 1,200 mm [47.2 in.] to 1,600 mm [63.0 in.] above the ground.
z The RRUs cannot installed on a wall in centralized mode. Therefore, expansion bolt assemblies should be

prepared for each RRU.

2. Drill holes at the anchor points and then install the expansion bolt assemblies.

M10x65 bolt
Spring washer 10
Plastic tube
Flat washer 10
Expansion tube

Do not hammer the bolt entirely into the
wall. Instead, leave 20 mm to 30 mm of
the bolt outside the wall.

20 mm [0.8 in.]

to 30mm [1.2 in.]

55 mm [2.2 in.]

to 60mm [2.4 in.]

Ø14

90°

After the expansion bolt is removed,
dispose of the plastic tube.

When the RRU is installed on a wall, the requirements are as follows:

z For one RRU, the wall has a weight-bearing capacity of 96 kg [211.7 lb].
z The fastening torque of the expansion bolt reaches 30 N•m [265.5 lbf•in.] the expansion bolt works properly,

and no damages such as cracks are on the wall.

12

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 [0.7 in.].

M10

30 N•m

[265.5 lbf•in.]

Arrows are upwards

4. Install the main bracket.

5. Install the RRU.

13

Installing the RRU on a Wall

6. Install multiple RRUs.

Recommended Clearance :

≥855 mm

[33.7 in.]

Minimum Clearance:

≥655 mm

[25.8 in.]

≥855 mm

[33.7 in.]

≥655 mm

[25.8 in.]

≥70 mm

[2.8 in.]

≥70 mm

[2.8 in.]

Installing the RRU Cables

a

Cable List

RRU Cable Connections

Connector to…Connector TypeCable

Grounding bolt on the RRUOT terminal (M6)PGND cable

2

(16 mm

(North American standard:

3.3 mm
European standard:
4 mm

)

DIN male connectorRRU RF jumper

DC RRU power cable

2

2

)

CPRI optical cable The connectors labeled 1A and 1B are connected to the optical

Two OT terminals
(M4）

DLC connector

DLC connector

Nearest grounding barOT terminal
Ports labeled ANT_TX/RXA and ANT_TX/RXB on the RRU

(Only the ANT_TX/RXA port supports the OOK signal).
Feeder or antennaDIN male connector
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.

External power supplyBare wire

module on the port labeled CPRI_W on the RRU
The connectors labeled 2A and 2B are connected to port labeled

CPRI0 to CPRI5 on the LBBP board of the BBU.

between the RRU and the
RCU

AISG extended cable
between the RRU and the
RCU

Standard AISG female connector

Port labeled RET/MON on the RRUWaterproof DB9 connectorAISG multi-wire cable
Standard AISG male connector of the AISG extension cable or

RCU
Standard AISG female connector of the AISG multi-wire cableStandard AISG male connector
Standard AISG male connector of the RCUStandard AISG female connector

14

Installing the RRU Cables

a

RRU Cable Connections

Single RRU

z When the length of the AISG multi-wire cable
between the RRU and the RCU is not enough, you
can choose the optional AISG extended cable
between the RRU and the RCU.

z If the coaxial cable is used for the RET antenna
when the STMA or Smart Bias-Tee (SBT) is used,
the OOK signals are required. Therefore, the port for
the RET antenna needs to use the ANT_TX/RXA
port.

PGND cable
RRU RF jumper

DC RRU power
cable

CPRI optical cable
AISG multi-wire cable between

the RRU and the RCU
AISG extended cable between

the RRU and the RCU

External power
system

BBU

RCU

Start

Install PGND cable

Install RRU RF

jumper

Antenna

Install feeder

(optional)

Install DC RRU

power cable

Install CPRI optical cable

Install AISG multi-wire

cable between the RRU

and the RCU (optional)

Install AISG extended

cable between the RRU

and the RCU (optional)

End

Multiple RRUs

PGND cable
RRU RF jumper

DC RRU power
cable

CPRI optical cable
AISG multi-wire cable

between the RRU and
the RCU

AISG extended cable
between the RRU and
the RCU

Antenna

Antenna

External power
system

Antenna

For detail information of the cable, see Cable List on Page 14.

15

Installing the RRU Cables

Opening the Cover Plate

b c

of the RRU Cabling Cavity

M4

Cover plate of the

cabling cavity

Cabling cavity

Label for preparing
the power cable

d Cable Connections on the RRU

Cabling Cavity of the RRU

Cable troughs for

power cables

Cable troughs for

optical cables

Cable troughs for

power cables

cable clip

Waterproofing filler

z Before connecting a power cable,
ensure that other end of the power cable
not connected to any power supply.

z Use the DC RRU power cable clip t o
press the shielding layer tightly and
ensure that the lower part of the
shielding layer does not exceed the
position shown in the preceding figure.

z Ground the shielding layer at the
other end of the power cable.

z Do not remove the dustproof cap from
the idle antenna port, and use the
waterproof tape to wrap the joint.

z For details on how to add OT
terminals to the DC RRU power cable of
the RRU, see page 22 " Adding OT
Terminals by Using a Wire Stripper."

z When wrapping the waterproof tape,
apply even force to extend the tape until
the width of the tape is 1/2 of the
original width.

z Wrap the joint spirally upward,
downward, and then upward again. In
other words, the joint is wrapped by
three layers of the tape. Ensure that the
two immediate layers overlap with each
other about half the width of the tape.
For details, see page 24 “Waterproofing
Outdoor Cables.”

z Install the optical module before
installing the optical cables. For details,
see page 25 “Installing the Optical
Module.”

CPRI optical cable

Shielding
layer of the
power cable

DC RRU
power cable

RRU RF
jumper

After the cables
are installed on
the RRU, insert
the waterproofing
fillers into the idle
cable troughs.

First wrap the joint
with the waterproof
tape, and then
wrap the joint with
the PVC insulating
tape.

16

Installing the RRU Cables

e

Closing the Cover Plate of the RRU Cabling Cavity

M4

z The screws on the cover plate should
be tightened until the fastening torque is

1.4 N·m [12.4 lbf•in.].
z Tighten the screws on the cover plate

1.4 N•m

[12.4 lbf•in.]

of the cabling cavity in the sequence
shown in the figure.

f

RRU+APM30H

Grounding the shielding layer
of the power cable:

DC RRU power cable

a

CPRI optical cable

b

RRU1

DC RRU
power
cable

Metal Shielding layer
(25 mm [1 in.])

PGND cable

z The DC RRU power cable is connected to one of the RRU0 to RRU5 terminals of the PDU.
z Strip the jacket of th e DC RRU power cable for a small part, press the exposed shielding layer in the power

cable clip, and then connect the PGND cable on the clip to the nearest grounding bolt on the side of the cabinet.

17

Installing the RRU Cables

g

RRU+BBU Installed Against the Wall

LOAD6

LOAD0

DC RRU power cable
CPRI optical cable
BBU power cable
PGND cable

DCDU panel facing
the side, and the
BBU panel facing
downward

z The DC RRU power cable is connected to one group of the LOAD0 to LOAD5 terminals of the DCDU-03B.
z When the BBU and RRU are installed indoors, the DC RRU power cables need not to be grounded.

RRU+19-Inch Cabinet

h

LOAD0

DC RRU power cable
CPRI optical cable

z At the end of the DC RRU power cable connected to the DCDU-03B, you need to make the shielding
layer of the power cable into an OT terminal, and then connect the OT terminal to the PGND terminal of the
corresponding port on the DCDU-03B. For details about making an OT terminal, see pages 22 and 23.

z The DC RRU power cable is connec t e d t o L OAD 0 to L OAD 5 on th e DCDU-03B.

18

Installing the RRU Cables

RRU+TMC/TMC11H

i

Grounding the shielding layer
of the power cable:

DC RRU power cable

a

CPRI optical cable

b

LOAD0

DC RRU
power
cable

Metal Shielding layer
(25 mm [1 in.])

PGND cable

z At the end of the DC RRU power cable connected to the DCDU-03B, you need to make the shielding layer
of the power cable into an OT terminal, and then connect the OT terminal to the PGND terminal of the
corresponding port on the DCDU-03B. For details about making an OT terminal, see pages 22 and 23.

z The DC RRU power cable is connec t e d t o L OAD 0 to L OAD 5 on th e DCDU-03B.

19

RRU Hardware Installation Checklist

ItemsNo.

1

4

8

9

All self-made PGND cables are copper-based with the proper wire diameters. No breaking device such as switch and
fuse is allowed for the electric connection of the grounding system. No short circuit is allowed. Each terminal on the
grounding bar can be connected with only one wiring terminal of the PGND cable.

The RRU and the installation parts are securely installed.2
The cover plate is securely installed on the cabling cavity of the RRU.3
Waterproof fillers are installed in the idle cable troughs of the cabling cavity of the RRU, and the cover plate of the

cabling cavity is securely installed. In addition, the idle RF ports are covered with waterproof caps and waterproofed.
There are no connectors or joints on the power cable or PGND cable.5
The terminals at both ends of the power cable or PGND cable are securely soldered or crimped.6
The flat washer and the spring washer are well mounted on all OT terminals.7
All the power cables and PGND cables are not short-circuited or reversely connected. In addition, no damaged or

broken parts exist.
The power cable, PGND cable, feeder, optical cable and the E1/T1/FE signal cable are bound separately with a

spacing of larger than 30 mm [1.2 in.] .
The connector of the signal cable is intact, and no damaged or broken parts exist on the cable.10
Labels are correct, legible, and complete on both ends of each cable.11

Powering on the RRU

Start

a

Check

whether the input

voltage of the RRU is

normal?

Yes

Power on the RRU

b

Check

whether the status of

the LEDs on the RRU

is normal?

No

No

Rectify the fault

Rectify the fault

a

Normal input voltage of the
RRU:
If the BBU is supplied with

-48 V DC power, the
external input power
voltage ranges from -57 V

DC to -36 V DC.

b

Normal status of the
LEDs on the RRU:

RUN LED: ON for 1s
and OFF for 1s
ALM LED: OFF

Yes

End

When the RRU is unpacked, it must
be powered on within 24 hours.

20

Appendix

a Binding the RRU and Installation Components

1. Bind the RRU by leading the lifting rope along the low er part of the adaptin g 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 fig ures.

Lifting rope

Steering rope

Lower part of the
adapting piece

z When lifting the RRU and installation components to the tower,
prevent the RRU from colliding with the tower.

z Lift the RRU to the tower before it is installe d on th e met al p ol e,
angle steel, or U-steel.

2. Lift the RRU and installation components to the tower.

Pulley

A

z 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.

Lifting rope

B C

Steering rope

z 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.

z 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.

z Installer A holds the RRU and installation
components and untie the ropes.

Do not bind the lifting rope
only on the handle when
lifting the RRU.

21

Appendix

b

Adding OT Terminals by Using a Wire Stripper (Recommended)

Adding the OT terminals to the power cable invo lves adding OT terminals to the RRU
power cable and adding OT terminals to the shielding la yer of the RRU power cable.

Label for preparing

-48V DC power cable

Shielding layer

-48V DC power wire

OT terminals

GND wire

Determine lengths of power cables for
different operations according to the scales on
the inner side of the cover plate of the cabling
cavity.

the power cable

010203040

14mm

8mm

Based on the determined length, remove the
jacket and shielding layer off the power cable.

Remove the jacket from each wire.

Add an OT terminal to each wire.

Strip a 15 mm jacket off the power cable to
reveal the shielding layer o f t he p o wer ca bl e

15mm

The OT terminals must be added to the power cable before the RRU is installed on a metal pole.

22

Appendix

c

Adding OT Terminals to the Shielding Layer of the DC RRU Power Cable

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.

Lead the wires
made of the
shielding layers
through heat­shrinkable tubes.

OT terminal on
the shielding
layer

23

Appendix

Waterproofing Outdoor Cables

d

z The waterproof tape should be wrapped for an extra length of 20
mm [0.8 in.] away from the connectors at both ends.

z 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.

z When wrapping the waterproof tape, apply even force to extend
the tape until the width of the tape is 1/2 of the original width.

z When wrapping the waterproof tape, ensure that the upper layer
of the tape covers at least 50% of the lower layer.

z The insulating tape should be wrapped for an extra length of 20
mm [0.8 in.] away from the connectors at both ends.

z 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.

1. Wrap three layers of waterproof tape.

Waterproof tape

Insulating tape

2. Wrap three layers of insulating tape.

Tightly pressing the tape

Installing the Optical Module

e

Tightly pressing the tape

tie

tie

Binding cable ties at both
ends of the tape

24

Appendix

f

Pin Assignment of the RRU AISG Extension cable

Pin of the AISG
male connector

InstructionWire TypeWire ColorPin of the AISG

female connector

+12VTwisted pairWhite/blueX2.1X1.1

Blue

DC Return ATwisted pairWhite/orangeX2.7X1.7

Orange

RS485 BTwisted pairWhite/greenX2.3X1.3

RS485 AGreenX2.5X1.5

+24VTwisted pairWhite/brownX2.6X1.6

Brown

25

Change History

This describes the changes in the RRU3203 Installation Guide.

z01 (2010-04-13)
This is the commercial issue.

26

HUAWEI TECHNOLOGIES CO., LTD.

Huawei Industrial Base Bantian Longgang

Shenzhen 518129

People’s Republic of China

www.huawei.com