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AAU5636 (2300-2600 MHz)
Installation Guide
Issue 03
Date 2022-10-25
HUAWEI TECHNOLOGIES CO., LTD.
 
 
Copyright © Huawei Technologies Co., Ltd. 2022. All rights reserved.
No part of this document may be reproduced or transmitted in any form or by any means without prior
written consent of Huawei Technologies Co., Ltd.
 
Trademarks and Permissions
 and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.
All other trademarks and trade names mentioned in this document are the property of their respective
holders.
 
Notice
The purchased products, services and features are stipulated by the contract made between Huawei and
the customer. All or part of the products, services and features described in this document may not be
within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements,
information, and recommendations in this document are provided "AS IS" without warranties, guarantees
or representations of any kind, either express or implied.
The information in this document is subject to change without notice. Every effort has been made in the
preparation of this document to ensure accuracy of the contents, but all statements, information, and
recommendations in this document do not constitute a warranty of any kind, express or implied.
 
 
 
 
 
 
Huawei Technologies Co., Ltd.
Address: Huawei Industrial Base
Bantian, Longgang
Shenzhen 518129
People's Republic of China
Website: https://www.huawei.com
Email: support@huawei.com
Issue 03 (2022-10-25) Copyright © Huawei Technologies Co., Ltd. i
https://www.huawei.com
mailto:support@huawei.com
Contents
1 AAU5636 Installation Guide................................................................................................. 1
1.1 Changes in AAU5636 Installation Guide......................................................................................................................... 2
1.2 Installation Preparations....................................................................................................................................................... 3
1.2.1 Documents............................................................................................................................................................................. 3
1.2.2 Tools and Instruments........................................................................................................................................................ 3
1.2.3 Requirements for Onsite Personnel............................................................................................................................... 5
1.3 Installation Scenarios............................................................................................................................................................. 6
1.3.1 Requirements for the Pole................................................................................................................................................ 6
1.3.2 Installation Clearance Requirements............................................................................................................................ 9
1.4 Unpacking Check.................................................................................................................................................................. 12
1.5 Installation Process...............................................................................................................................................................14
1.6 Installing an Optical Module............................................................................................................................................ 15
1.7 Preparing PGND and Power Cables................................................................................................................................17
1.8 Assembling Mounting Kits................................................................................................................................................. 17
1.9 Installing an Upper Main Bracket onto a Pole........................................................................................................... 23
1.10 Lifting an AAU..................................................................................................................................................................... 25
1.10.1 Binding an AAU............................................................................................................................................................... 26
1.10.2 Lifting an Assembled AAU onto a Tower................................................................................................................27
1.10.2.1 Lifting an AAU onto a Tower...................................................................................................................................27
1.10.2.2 Lifting Optical Fibers onto a Tower.......................................................................................................................30
1.10.2.3 Lifting Power Cables onto a Tower....................................................................................................................... 33
1.10.3 Lifting an Assembled AAU onto a Rooftop............................................................................................................ 36
1.10.4 Installing an AAU onto a Pole.................................................................................................................................... 38
1.11 Installing Cables.................................................................................................................................................................. 43
1.11.1 Cabling Requirements................................................................................................................................................... 43
1.11.2 Cables Connections........................................................................................................................................................ 51
1.11.3 Installing an AAU PGND Cable.................................................................................................................................. 51
1.11.4 Installing Power Cables................................................................................................................................................. 53
1.11.5 Installing a CPRI Optical Fiber.................................................................................................................................... 59
1.12 Adjusting the Mechanical Downtilt..............................................................................................................................68
1.13 Installation Checklist......................................................................................................................................................... 71
1.14 Powering On an AAU........................................................................................................................................................ 72
1.15 Appendix................................................................................................................................................................................ 73
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Installation Guide Contents
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1.15.1 Adding an Outdoor Quick-Lock Power Connector to the AAU Power Cable on the AAU Side...........74
AAU5636 (2300-2600 MHz)
Installation Guide Contents
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1 AAU5636 Installation Guide
Overview
This document describes the procedures for installing an active antenna unit 5636
(AAU5636, which is referred to as AAU in this document), its cables, and auxiliary
hardware. It also provides checklists for hardware installation.
Product VersionsThe following table lists the product versions related to this document.
Product Name Solution Version Product Version
AAU5636 SRAN16.1 and later V100R016C10 and later
 
Intended Audience
● System engineers
● Installation engineers
● Maintenance engineers
Organization
1.1 Changes in AAU5636 Installation Guide
This section describes the changes in AAU5636 Installation Guide.
1.2 Installation Preparations
This section describes the reference documents, tools, and instruments that must
be ready before the installation. In addition, it specifies the required skills and
qualifications for installation engineers.
1.3 Installation Scenarios
This section describes the information to be known before the AAU installation,
which includes the requirements for the pole where the AAU is installed and
installation clearance requirements.
1.4 Unpacking Check
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This section describes how to unpack the packages and check whether all the
materials are included and intact.
1.5 Installation Process
This section describes the process of installing an AAU.
1.6 Installing an Optical Module
1.7 Preparing PGND and Power Cables
This section describes how to prepare PGND and power cables for the AAU.
1.8 Assembling Mounting Kits
This section describes the procedure and precautions for assembling and installing
AAU mounting kits.
1.9 Installing an Upper Main Bracket onto a Pole
This section describes the procedure and precautions for lifting and installing an
upper main bracket onto a pole.
1.10 Lifting an AAU
This section uses the AAU with the downtilt supporting arm installed on the upper
handle as an example to describe the procedures and precautions for lifting and
installing an AAU onto a tower and a rooftop.
1.11 Installing Cables
This section describes the procedures and precautions for installing cables.
1.12 Adjusting the Mechanical Downtilt
This section describes the procedure and precautions for adjusting the mechanical
downtilt of an AAU.
1.13 Installation Checklist
This chapter describes the checklist for AAU hardware installation.
1.14 Powering On an AAU
This section describes the procedure and precautions for powering on an AAU.
1.15 Appendix
This section describes auxiliary operations during the installation process.
1.1 Changes in AAU5636 Installation Guide
This section describes the changes in AAU5636 Installation Guide.
03 (2022-10-25)
This is the second commercial release.
Compared with Issue 02 (2022-09-19), this issue does not include any new topics
or exclude any topics.
Compared with Issue 02 (2022-09-19), this issue includes the following changes.
Topic Change Description
1.3.2 Installation Clearance
Requirements
Updated the AAU installation
dimensions for reference.
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Issue 03 (2022-10-25) Copyright © Huawei Technologies Co., Ltd. 2
 
02 (2022-09-19)
This is the second commercial release.
Compared with Issue 01 (2021-06-30), this issue does not include any new topics
or exclude any topics.
Compared with Issue 01 (2021-06-30), this issue includes the following changes.
Topic Change Description
1.15.1 Adding an Outdoor Quick-
Lock Power Connector to the AAU
Power Cable on the AAU Side
Revised descriptions in this document.
 
01 (2021-06-30)
This is the first commercial release.
Compared with Draft A (2021-02-28), this issue does not include any new topics
or changes, or exclude any topics.
Draft A (2021-02-28)
This is a draft.
1.2 Installation Preparations
This section describes the reference documents, tools, and instruments that must
be ready before the installation. In addition, it specifies the required skills and
qualifications for installation engineers.
1.2.1 Documents
Before the installation, familiarize yourself with the information in the following
documents:
● Safety Information
● AAU5636 Hardware Description
● DBS3900 & DBS5900 Installation Guide
1.2.2 Tools and Instruments
The following primary and auxiliary installation tools must be ready before the
installation.
Primary Installation Tools
The primary installation tools must be provided for onsite installation, such as
tools for measuring dimensions, preparing cables, and fastening. The primary
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installation tools are classified into basic tools and extended tools, as listed in
Table 1-1 and Table 1-2, respectively.
Table 1-1 Basic tools
Multi-purpose wire
stripper (for stripping
wires, cutting wires, and
crimping OT terminals)
Torque screwdriver (1.4
N·m [12.39 lbf·in.] and
4.8 N·m [42.48 lbf·in.])
M3 and M6
Torque wrench (50 N·m
[442.54 lbf·in.])
M12
Heat gun Measuring tape Compass
Inclinometer Adjustable torque
wrench (size ≥ 32 mm
[1.26 in.])
-
 
Table 1-2 Extended tools
Pole-mounted Scenario Tower-mounted Scenario
Installation rope (load bearing
capacity > 500 kg [1102.50 lb])
Installation rope (load bearing
capacity > 500 kg [1102.50 lb])
Fixed pulley (load bearing capacity >
500 kg [1102.50 lb])
Fixed pulley (load bearing capacity >
500 kg [1102.50 lb])
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Pole-mounted Scenario Tower-mounted Scenario
- Winch
 
Auxiliary Installation Tools
The auxiliary installation tools provide protection or facilitate the installation, as
listed in Table 1-3.
Table 1-3 Auxiliary installation tools
Protective gloves ESD gloves Utility knife
Diagonal pliers - -
 
1.2.3 Requirements for Onsite Personnel
Onsite personnel must be qualified and trained. Before performing any operation,
onsite personnel must be familiar with correct operation methods and safety
precautions.
Before the installation, pay attention to the following:
● The customer's technical engineers must be trained by Huawei and be
familiar with the proper installation and operation methods.
● The number of installation personnel depends on the engineering schedule
and installation environment. Generally, four to five installation persons are
required. For a small and light AAU, for example, an Easy Macro, only two
persons are required.
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1.3 Installation Scenarios
This section describes the information to be known before the AAU installation,
which includes the requirements for the pole where the AAU is installed and
installation clearance requirements.
1.3.1 Requirements for the Pole
An AAU can be installed on a pole on the rooftop or tower.
Restrictions
To ensure safety performance such as heat dissipation and waterproof of an AAU,
the installation scenario must meet certain requirements. If the installation
scenario does not meet the requirements, contact Huawei engineers for
evaluation.
● An AAU cannot be installed in an enclosed camouflage box or a camouflage
cover.
● An AAU cannot be installed behind a device that can generate an
electromagnetic field, such as a motor.
● An AAU cannot be installed near an air vent that generates heat, such as an
air conditioner air vent or chimney vent.
● An AAU can only be installed on a pole that is vertical to the ground. It
cannot be installed on a diagonal pole or a horizontal pole.
● In general, no further beautification (for example, coating) is allowed to avoid
affecting the device performance.
● An AAU is a professional communication device and cannot be installed in
areas that are easily accessible to common people. The installation scenario
involves security-related features. For details about the requirements and
precautions, see Security Information.
Installation Scenario Description
An AAU5636 can be installed on a pole securedon a rooftop or tower, as shown in
the following figure.
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Figure 1-1 AAU installed on a pole
NO TE
Appearance is already considered in the AAU design, and in general no further
beautification is allowed in the installation process. Should you need further beautification,
contact Huawei engineers for evaluation.
Requirements for the Pole
The following table describes the requirements for the pole.
Table 1-4 Requirements for the pole
Installation
Scenario
Pole
Diameter
(Φ)
Pole
Wall
Thicknes
s
Pole Load
Bearing
Capacity
Number
of AAUs
Pole
Heightc
Main pole
scenarioa
70 mm ≤ Φ
≤ 100 mm
(2.76 in. ≤ Φ
≤ 3.94 in.)
4 mm
(0.16 in.)
300 kg
(661.50 lb)
1 ≥ 1500 mm
(59.06 in.)
100 mm ≤ Φ
≤ 114 mm
(3.94 in. ≤ Φ
≤ 4.49 in.)
4 mm
(0.16 in.)
300 kg
(661.50 lb)
2
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Installation
Scenario
Pole
Diameter
(Φ)
Pole
Wall
Thicknes
s
Pole Load
Bearing
Capacity
Number
of AAUs
Pole
Heightc
Auxiliary
pole
scenariob
50 mm ≤ Φ
≤ 60 mm
(1.97 in. ≤ Φ
≤ 2.36 in.)
4 mm
(0.16 in.)
300 kg
(661.50 lb)
1 ≥ 1000 mm
(39.37 in.)
60 mm ≤ Φ
≤ 114 mm
(2.36 in. ≤ Φ
≤ 4.49 in.)
3 mm
(0.12 in.)
300 kg
(661.50 lb)
1
a: In main pole scenarios, the bottom of the pole must be secured on a support.
b: In auxiliary pole scenarios, both the pole top and bottom must be secured on
the main pole or the tower.
c: The pole height refers to the minimum length of a pole required for installing
an AAU.
 
Figure 1-2 and Figure 1-3 show AAUs installed on main poles and auxiliary poles,
respectively.
Figure 1-2 Main pole scenario
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Figure 1-3 Auxiliary pole scenario
1.3.2 Installation Clearance Requirements
This section describes the clearance requirements for installing an AAU.
Figure 1-4 shows the installation clearance requirements and Figure 1-6 shows
the reference installation dimensions when no blocking exists between the AAU
and a passive antenna.
NO TE
Installation distances in the following figures meet the requirements on minimum
clearances and isolation between antennas. Contact local Huawei engineers in any of the
following scenarios:
● The installation space is limited and blocking exists between antennas.
● A TDD AAU is adjacent to an FDD antenna or FDD AAU. In this scenario, PIM
interference between antennas must be considered.
● The operating frequencies of adjacent antennas are 1.8 GHz and 3.5 GHz (for example,
LTE 1.8 GHz (band 3) + NR 3.5 GHz (n77/n78)). In this scenario, the secondary
harmonic interference must be considered.
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Figure 1-4 AAU installation clearance requirements
NO TICE
Keep the area within 2 m (6.56 ft), 30º upward and downward, and 60º leftward
and rightward away from the AAU front panel clear of any metal barriers to
ensure the AAU coverage, as shown by areas marked by dotted lines in the side
view and top view in Figure Affected AAU coverage scope.
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Figure 1-5 Affected AAU coverage scope
NO TE
After the downtilt supporting arm is installed, the dimensions when there is no mechanical
downtilt adjustment are the same as those in Figure 1-6.
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Figure 1-6 AAU installation dimensions for reference
1.4 Unpacking Check
This section describes how to unpack the packages and check whether all the
materials are included and intact.
Context
When transporting, moving, or installing the components, you must:
● Prevent them from colliding with doors, walls, shelves, or other objects.
● Wear clean gloves, and avoid touching any components with bare hands,
sweat-soaked gloves, or dirty gloves.
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● Do not place materials on the AAU.
NO TICE
Power on an AAU within 24 hours after unpacking it. Prevent water vapor from
entering the module, which may impact its performance.
Procedure
Step 1 Check the total number of articles in each packing case against the packing list.
If... Then...
The total number is consistent with
the packing list
Go to Step 2.
The total number is not consistent
with the packing list
Find out the cause and report it to the
local Huawei office.
 
Step 2 Check the exterior of the packing cases.
If... Then...
The outer packing is intact Go to Step 3.
The outer packing is severely
damaged or soaked
Find out the cause and report it to the
local Huawei office.
 
Step 3 Check the type and quantity of components in the packing cases against the
packing lists.
If... Then...
The type and quantity are consistent
with the packing list on each packing
case
Cosign the Packing List with the
customer.
There is any shortage, wrong delivery,
or damaged equipment
Report to the local Huawei office.
 
NO TICE
Keep the unpacked components and the packing materials indoors to protect the
components from damages and to facilitate cause analysis of damages, if any.
Take photos of the storage room, any rusted or eroded components, the packing
cases, and the packing materials, and file the photos.
Step 4 Take the record form out of the antenna packing case and fill in this form
according to the actual situation.
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NO TE
In AAU cascading scenarios, filling out the record form is required.
----End
1.5 Installation Process
This section describes the process of installing an AAU.
The following figure shows the process of installing an AAU.
NO TE
The process of lifting an AAU includes binding an AAU, lifting the AAU and related cables
onto a tower or rooftop, and installing the AAU. The process of installing cables includes
installing an AAU PGND cable, installing a power cable, and installing a CPRI optical fiber.
The operations must be implemented in sequence.
Figure 1-7 Installation process
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1.6 Installing an Optical Module
Before lifting an AAU, install an optical module on the connector at the bottom of
the AAU.
NO TE
The exterior of a module in this section is for reference only.
Procedure
Step 1 Push the dustproof cap lever to loosen the dustproof cap on the CPRI port of the
AAU.
Figure 1-8 Pushing the lever to loosen the dustproof cap
Step 2 Remove the dustproof cap from the CPRI port of the AAU.
Figure 1-9 Removing the dustproof cap
Step 3 Insert an optical module into the CPRI port of the AAU. Ensure that the optical
module is inserted in the correct direction. Slowly push it into the slot horizontally,
until it is in close contact with the slot and the connector is completely inserted, as
shown in Figure 1-10. The connector is properly fastened.
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Figure 1-10 Installing an optical module
NO TE
● When the optical connector is securely connected, you will hear a click.
● It is recommended that the optical module be installed on the ground, since there is no
anti-falling protection for installing the optical module on the tower.
● Ensure that the opticalmodule is installed in the correct direction to prevent damage to
the module or the CPRI port of the AAU.
NO TICE
The performance of an optical module may deteriorate if it is exposed to the air
for a long time. Therefore, keep the optical module plugged with a dustproof plug
before you connect an optical fiber to an optical module.
Step 4 Install a dustproof cap on the CPRI port of the AAU.
Figure 1-11 Installing a dustproof cap
Step 5 Pull the lever to tighten the dustproof cap on the CPRI port of the AAU.
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Figure 1-12 Pulling the lever to tighten the dustproof cap
----End
1.7 Preparing PGND and Power Cables
This section describes how to prepare PGND and power cables for the AAU.
Procedure
Step 1 Cut the cables to suit the actual cable routes.
Step 2 Add corresponding connectors to both ends of each cable.
Cable Type Reference
PGND cable Assembling the OT Terminal and the
Power Cable in Installation Reference
Power cable 1.15.1 Adding an Outdoor Quick-
Lock Power Connector to the AAU
Power Cable on the AAU Side
 
----End
1.8 Assembling Mounting Kits
This section describes the procedure and precautions for assembling and installing
AAU mounting kits.
Context
● The default mechanical downtilt of the AAU is 0°. If a mechanical downtilt of
a certain degree is required, a downtilt supporting arm needs to be
configured.
● A bolt on the upper auxiliary bracket and a bolt on the lower auxiliary bracket
have been pre-secured to the upper main bracket and lower main bracket
before delivery, respectively.
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● Figure 1-13 shows AAU mounting kits.
Figure 1-13 Mounting kits
No. Component Quantity Description
a Upper main
bracket
1 Secured to the handle of the AAU.
b Lower main
bracket
1 Secured to the handle of the AAU.
c Auxiliary bracket 2 Assembled with the main bracket
for pole-mounted installation.
d M10x150 bolt for
pole-mounted
installation
4 Used to assemble a main bracket
with an auxiliary bracket.
e Downtilt
supporting arm
1 Secured to the handle of the AAU. It
is used to adjust the mechanical
downtilt.
 
● The following table lists the weights of mounting kits and handles.
Component Weight
Upper and lower mounting kits 2.7 kg (5.95 lb)
Downtilt supporting arm 1.3 kg (2.87 lb)
Upper and lower handles (including
attachment plates)
1.2 kg (2.65 lb)
 
Procedure
Step 1 (Optional) Install the downtilt supporting arm onto the upper handle of the AAU.
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1. Remove the M10 bolt from the outer side of the AAU downtilt supporting
arm, as shown by illustration a in Figure 1-14.
2. Install the M10 bolt into the installation hole, and use a torque wrench to
tighten the bolt to 40 N·m (354.03 lbf·in.), as shown by illustration b in
Figure 1-14.
NO TE
– If the downtilt needs to range from 0° to 20°, the downtilt supporting arm must be
installed on the upper handle. If the downtilt needs to range from –20° to 0°, the
downtilt supporting arm must be installed on the lower handle.
– During the installation, the angle of the downtilt supporting arm must be 0°.
– After being secured to the handle, the downtilt supporting arm must be
perpendicular to the handle.
– The downtilt supporting arm is not mandatory. The upper and lower handles of the
AAU can be assembled with upper and lower brackets to install the AAU directly.
Figure 1-14 Installing a downtilt supporting arm onto the upper handle
(Optional) Install the downtilt supporting arm onto the lower handle of the AAU.
1. Remove two M10 bolts from the outer side of the AAU downtilt supporting
arm, as shown in Figure 1-15.
2. Install the M10 bolts into the installation holes on the upper handle, and use
a torque wrench to tighten the bolt to 40 N·m (354.03 lbf·in.), as shown in
Figure 1-16.
3. Remove the M10 bolt from the outer side of the AAU downtilt supporting
arm, as shown by step a in Figure 1-17.
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4. Install the downtilt supporting arm onto the lower handle of the AAU.
Specifically, install the M10 bolt into the installation hole, and use a torque
wrench to tighten the bolt to 40 N·m (354.03 lbf·in.), as shown by step b in
Figure 1-17.
Figure 1-15 Removing bolts
Figure 1-16 Installing bolts onto the upper handle
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Figure 1-17 Installing a downtilt supporting arm onto the lower handle
Step 2 Install the lower main bracket.
If... Then...
A downtilt supporting
arm has been
installed on the lower
handle of the AAU
(scenario 1)
1. Remove the M10 bolt from the main bracket.
2. Place the lower main bracket on the short arm of the
downtilt supporting arm, align the short arm end
with the holes of the lower main bracket.
3. Secure the M10 screw on the lower main bracket to
the handle of the AAU with a torque of 40 N·m
(354.03 lbf·in.), as shown in Figure 1-18.
No downtilt
supporting arm has
been installed on the
lower handle of the
AAU (scenario 2)
1. Remove the M10 bolt from the main bracket.
2. Place the lower main bracket on the lower handle of
the AAU, and align the lower handle with the holes
of the lower main bracket.
3. Secure the M10 screw on the lower main bracket to
the handle of the AAU with a torque of 40 N·m
(354.03 lbf·in.), as shown in Figure 1-19.
 
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NO TE
Pay attention to the direction of the brackets and avoid reverse installation, as shown in the
following figure.
Figure 1-18 Installing the lower main bracket onto the AAU (scenario 1)
Figure 1-19 Installing the lower main bracket onto the AAU (scenario 2)
----End
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1.9 Installing an Upper Main Bracket onto a Pole
This section describes the procedure and precautions for lifting and installing an
upper main bracket onto a pole.
Procedure
Step 1 The installation technician puts the fixed pulley into a tool kit and then climbs up
with the tool kit and a lifting sling. The assembled upper main and auxiliary
brackets can be taken by the installation technician or be lifted onto a tower, as
shown in the following figure.
Figure 1-20 Binding upper main and auxiliary brackets
(1) Lifting sling (2) Traction sling
Step 2 The installation technician marks the position on the pole for installing the upper
main bracket according to installation clearance requirements.
Step 3 The installation technician adjusts the positions of the M10 nuts on the two bolts
according to the diameter of the pole, and loosen one bolt. The installation
technician moves the auxiliary bracket, horizontally slides the upper main and
auxiliary brackets onto the pole, and moves the bolt in the slot of the auxiliary
bracket, as shown in the following figure.
NO TE
Ensure that the arrows on the main bracket are pointing up.
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Figure 1-21 Installing the upper main and auxiliary brackets onto the pole
Step 4 The installation technician standing in a proper position on the ground uses a
compass to determine the azimuth (the azimuth is set to 120° as an example in
this case), and the climber adjusts the azimuth according to the onsite
requirements, as shownin the following figure.
Figure 1-22 Adjusting the azimuth
(1) Compass
 
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Step 5 The installation technician uses a torque wrench to tighten the two M10 bolts on
the upper main bracket to 40 N·m (354.03 lbf·in.) to ensure that the upper main
and auxiliary brackets are secured to the pole, as shown in Figure 1-23.
Figure 1-23 Securing the upper main and auxiliary brackets onto the pole
(1) M10 nut
NO TE
Tighten the bolts on both sides of the bracket, and ensure that the spacing between the
upper main bracket and auxiliary bracket is the same on both sides.
NO TICE
Ensure that the top screws on both sides of the upper main bracket are raised to
prevent them from affecting subsequent lifting operations.
----End
1.10 Lifting an AAU
This section uses the AAU with the downtilt supporting arm installed on the upper
handle as an example to describe the procedures and precautions for lifting and
installing an AAU onto a tower and a rooftop.
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NO TICE
The climber must climb up the tower with the outdoor quick-lock optical fiber
connector.
1.10.1 Binding an AAU
This section describes the procedure and precautions for binding an AAU to be
lifted. An AAU can be bound using a cramp ring based on actual conditions.
Prerequisites
● The screws on the top of the upper main bracket are raised.
● A climber installs a fixed pulley onto the lifting eye of the upper main bracket
or at a position on the upper main bracket that can fix a fixed pulley.
● A lifting sling is routed through the fixed pulley and the two ends of the
lifting sling are thrown downward.
Procedure
Step 1 The installation technician on the ground binds the lifting sling and traction sling.
1. Route the lifting sling through the upper handle of the AAU and bind the
lifting sling, as shown by illustration 1 in Figure 1-24.
CA UTION
The lifting sling must be bound to the beam on the upper handle of the AAU
not the downtilt supporting arm.
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Figure 1-24 Binding the lifting sling and traction sling
(1) Lifting sling (2) Traction sling
2. Route the traction sling through the lower handle of the AAU and bind the
traction sling, as shown by illustration 2 in Figure 1-24.
----End
1.10.2 Lifting an Assembled AAU onto a Tower
This section describes the procedure and precautions for lifting an assembled AAU,
optical fibers, and power cables onto a tower.
1.10.2.1 Lifting an AAU onto a Tower
This section describes the procedure and precautions for lifting an assembled AAU
onto a pole on a tower.
Prerequisites
The upper main bracket for the AAU has been installed and the AAU has been
bound.
NO TICE
● Place a foam pad or cardboard under an AAU to protect the AAU housing from
damage.
● When installing an AAU onto a tower, use a lifting sling and a fixed pulley to
securely bind the AAU or a module. To prevent any personal injury caused by a
falling AAU or module, unfasten the lifting sling only after the AAU is securely
installed.
The lifting procedure described in this section is for reference only.
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Procedure
Step 1 Lift the AAU.
● If a winch is used, installation technician C operates the winch and installation
technician B controls the traction sling to prevent the AAU from colliding with
the tower, as shown in Figure 1-25.
● If no winch is used, installation technicians C and D pull the lifting sling
downwards, and installation technician B controls the traction sling to prevent
the AAU from colliding with the tower, as shown in Figure 1-26.
Figure 1-25 Lifting an assembled AAU (using a winch)
(1) Lifting sling (2) Traction sling (3) Winch
 
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Figure 1-26 Lifting an assembled AAU (not using a winch)
(1) Lifting sling (2) Traction sling
 
Step 2 When the upper handle is close to the fixed pulley, the climber gently holds the
AAU and hooks the AAU downtilt supporting arm into the slots of the upper main
bracket. Align the holes on the upper main bracket with those on the short arm of
the downtilt supporting arm. Push the nuts on both sides of the upper main
bracket inwards and tighten them to the recommended torque of 40 N·m (354.03
lbf·in.), as shown in Figure 1-27.
CA UTION
● When lifting an AAU using a winch, prevent the AAU from being stuck by the
fixed pulley while the upper handle is close to the pulley, avoiding human
injury in case that the AAU falls.
● Lean the groove of the lower main bracket against the pole to prevent the AAU
from swinging.
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Figure 1-27 Hooking the downtilt supporting arm into the slots of the upper main
bracket
(1) Groove
----End
1.10.2.2 Lifting Optical Fibers onto a Tower
This section describes the procedure and precautions for lifting optical fibers onto
a tower.
Context
Cabling requirements for optical fibers are met. For details, see 1.11.1 Cabling
Requirements.
Procedure
Step 1 Lift the optical fibers onto the tower, as shown in Figure 1-28.
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Figure 1-28 Lifting optical fibers onto the tower
(1) Lifting sling (2) Fixed pulley (3) Traction sling
 
NO TICE
Before lifting optical fibers onto the tower, determine the lifting direction based on
the labels on both ends indicating which ends connect to the AAU or BBU.
1. After climbing up to the tower, installation technician A secures the fixed
pulley onto the tower platform support and leads the lifting sling through the
fixed pulley.
2. Installation technician B places the fiber coiler for coiling optical fibers on the
fiber spools, and installation engineer D leads the lifting sling through the
stretch sling of the optical fibers and uses the other sling as a traction sling to
secure the optical fibers 4 m (13.12 ft) away from the lifting sling knot, as
shown in Figure 1-29.
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Figure 1-29 Binding optical fibers
(1) Lifting sling (2) Stretch sling (3) Traction sling
 
NO TICE
Do not remove the stretch sling and protection pipe or bind optical fibers
using one sling, as shown in Figure 1-30.
Figure 1-30 Incorrect binding method
3. Installation technician B rotates the fiber spools at the speed of 5 m (16.40 ft)
to 15 m (49.21 ft) per minute to coil the optical fibers.
4. Installation technician C pulls the lifting sling downwards, and installation
technician D pulls the traction sling outwards to prevent the optical fibers
from colliding with the tower.
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Step 2 Secure the optical fibers vertically onto the tower using cable clips.
Step 3 Remove the lifting sling, traction sling, and protection pipe.
NO TE
The preceding procedure is only for your reference.
----End
1.10.2.3 Lifting Power Cables onto a Tower
This section describes the procedure and precautions for lifting power cables onto
a tower.
Context
Cabling requirements for power cables on a tower are met. For details, see 1.11.1
Cabling Requirements.
A connector has been added to the AAU power cableon the AAU side under the
tower.
Procedure
Step 1 Lift the power cables onto the tower, as shown in Figure 1-31.
Figure 1-31 Lifting power cables onto a tower
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(1) Lifting sling (2) Fixed pulley
 
1. After climbing up to the tower, installation technician A secures the fixed
pulley onto the tower platform support and leads the lifting sling through the
fixed pulley.
2. Installation technician B secures three cable ties below the outdoor quick-lock
power connectors to secure the power cables onto the lifting sling, as shown
in Figure 1-32. Power cables are lifted with the lifting sling.
NO TE
The power cable connectors in the figure are only examples. The actual connectors
may vary according to the situation.
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Figure 1-32 Binding the cables with cable ties
3. Installation technician B wraps the power cable connectors with the PVC
insulation tape, as shown in Figure 1-33.
NO TE
Wrap the PVC insulation tape from the middle of the connectors until the connectors
are fixed to the lifting sling.
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Figure 1-33 Wrapping the connectors with the PVC insulation tape
4. Installation technician C pulls the lifting sling downwards, and installation
technician B pulls the lifting sling outwards to prevent the cables from
colliding with the tower.
Step 2 Secure the power cables onto the tower vertically using cable clips.
Step 3 Remove the cable ties, PVC insulation tape, and lifting sling.
NO TE
The preceding procedure is only for your reference.
----End
1.10.3 Lifting an Assembled AAU onto a Rooftop
This section describes the procedure and precautions for lifting an assembled AAU
onto a pole on a rooftop.
Prerequisites
The upper main bracket for the AAU has been installed and the AAU has been
bound.
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NO TICE
● Place a foam pad or cardboard under an AAU to protect the AAU housing from
damage.
● When installing an AAU onto a tower, use a lifting sling and a fixed pulley to
securely bind the AAU or a module. To prevent any personal injury caused by a
falling AAU or module, unfasten the lifting sling only after the AAU is securely
installed.
The lifting procedure described in this section is for reference only.
Procedure
Step 1 Installation technicians C and D pull the lifting sling downwards, and installation
technician B controls the traction sling to prevent the AAU from colliding with the
pole, as shown in the following figure.
Figure 1-34 Lifting an assembled AAU
(1) Lifting sling (2) Traction sling
 
Step 2 When the upper handle is close to the fixed pulley, the climber gently holds the
AAU and hooks the AAU downtilt supporting arm into the slots of the upper main
bracket. Align the holes on the upper main bracket with those on the short arm of
the downtilt supporting arm. Push the nuts on both sides of the upper main
bracket inwards and tighten them to the recommended torque of 40 N·m (354.03
lbf·in.), as shown in Figure 1-35.
NO TE
Lean the groove of the lower main bracket against the pole to prevent the AAU from
swinging.
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Figure 1-35 Hooking the downtilt supporting arm into the slots of the upper main
bracket
(1) Groove
----End
1.10.4 Installing an AAU onto a Pole
This section describes the procedure and precautions for installing an AAU onto a
pole.
Context
NO TICE
During the installation, do not adjust the horizontal azimuth while the bolts of the
main brackets are loosened if no anti-falling measure is taken for the equipment.
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Figure 1-36 Installation of downtilt supporting arms
(a) Downtilt supporting arm installed
on the upper handle of an AAU
(b) Downtilt supporting arm installed
on the lower handle of an AAU
 
This section uses the installation scenario (a) in the following figure to describe
the procedure for installing an AAU onto a pole.
Procedure
Step 1 Align the holes on the upper main bracket with those on the short arm of the
downtilt supporting arm, and use a torque wrench to tighten the M10 bolt to a
torque of 40 N·m (354.03 lbf·in.), as shown in the following figure.
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Figure 1-37 Tightening the AAU to the upper main bracket (with a downtilt
supporting arm)
Step 2 Secure the lower main and auxiliary brackets onto the pole, and rotate the
auxiliary bracket, as shown by illustration a in the following figure. Move an
M10x150 bolt to the slot, as shown by illustration b in the following figure. Use an
M10 torque wrench to tighten the two bolts to 40 N·m (354.03 lbf·in.), as shown
by illustration c in the following figure.
NO TICE
Tighten the bolts on both sides of the bracket, and ensure that the spacing
between the lower main bracket and auxiliary bracket is the same on both sides.
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Figure 1-38 Securing the lower main and auxiliary brackets
(1) M10 nut
----End
If angle adjustment is not required, an AAU can be installed without a downtilt
supporting arm.
Procedure
Step 1 Remove two M10 bolts from both sides of the downtilt supporting arm.
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Figure 1-39 Removing bolts
Step 2 Install the two removed M10 bolts onto the upper handle of the AAU.
Figure 1-40 Installing bolts onto the upper handle
Step 3 Install the AAU on the pole.
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Figure 1-41 AAU directly installed using handles
----End
1.11 Installing Cables
This section describes the procedures and precautions for installing cables.
1.11.1 Cabling Requirements
Cables must be routed according to specified cabling requirements to prevent
signal interference.
NO TE
If a cable listed below is not required, skip the cabling requirements of the cable.
General Cabling Requirements
Bending radius requirements
● The bending radius of a 7/8'' feeder must be greater than 250 mm (9.84 in.),
and the bending radius of a 5/4'' feeder must be greater than 380 mm (14.96
in.).
● The bending radius of a 1/4'' jumper must be greater than 35 mm (1.38 in.).
The bending radius of a super-flexible 1/2'' jumper must be greater than 50
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mm (1.97 in.), and the bending radius of an ordinary 1/2'' jumper must be
greater than 127 mm (5 in.).
● The bending radius of a power cable or PGND cable must be at least three
times the cable diameter.
● The bending radius of an optical fiber is at least 20 times of its diameter, and
the bending radius of a breakout cable is at least 30 mm (1.18 in.).
● The bending radius of an E1/T1 cable must be at least three times its
diameter.
● The bending radius of a signal cable must be at least five times its diameter.
Cable binding requirements
● Cables of the same type must be bound together.
● Different types of cables must be separatelyrouted and bound, with a
minimum distance of 30 mm (1.18 in.) from each other.
● The cables must be bound tightly and neatly. The sheaths of the cables must
not be damaged.
● The cable ties must face the same direction, and those at the same horizontal
line must be in a straight line.
● The excess of the indoor cable ties needs to be cut off. A 5 mm (0.2 in.)
excess needs to be reserved for each outdoor cable tie, without any sharp
edges.
● After cables are installed, labels or nameplates must be attached to the cables
at their ends, curves, and interconnection positions.
Security requirements
● When routing cables, avoid sharp objects, for example sharp edges on the
wall. If necessary, use tubes to protect the cables.
● When routing cables, keep the cables away from heat sources and use heat
insulation materials to insulate the cables from the heat sources.
● Reserve a proper distance (0.1 m or 0.33 ft is recommended) between
equipment and cables, especially at the cable curves to protect the cables and
equipment.
Indoor cabling requirements
● Cables are routed indoors through the feeder window.
● Reserve drip loops for all cables outside the feeder window before routing
them into the room. Ensure that the radiuses of the drip loops are greater
than or equal to the minimum bending radiuses of the cables.
● When routing a cable into the room, ensure that a person is assisting you in
the room.
● Apply waterproof treatment to the feeder window.
Outdoor Cabling Requirements
● Protect outdoor cables against potential damage. For example, put the cables
through tubes.
● The cables to be protected include AC power cables, transmission cables, and
cables routed underground.
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● When routing cables through tubes on the ground below the cabinet, put a
30 mm to 50 mm (1.18 in. to 1.97 in.) length of the tubes into the base of the
cabinet but do not put the tubes into the cabinet. Use waterproof tape or
waterproof silicon gel to block both ends of the tubes and use sheet metal
tabs to secure the tubes to the cable holes in the base.
● When routing cables through tubes along a metal cable trough below the
cabinet, do not put the tubes into the base of the cabinet but cover the cable
trough and connect the tubes to the cable holes in the base.
● Use clips to secure cables outdoors. For the method of installing a clip, see the
installation guide delivered with the clip.
● Arrange cables neatly along the routing direction and use clips to secure the
cables.
● Determine the positions where the clips are installed according to the actual
situation. For example, 7/8" feeders are secured with clips at an interval of 1.5
m to 2 m (4.92 ft to 6.56 ft), CPRI optical fibers and power cables are secured
with clips at an interval of 1 m to 1.5 m (3.28 ft to 4.92 ft). Ensure that the
clips are evenly spaced and face the same direction.
● When fastening cables with a clip, ensure that the cables are aligned neatly
and are routed through the holes in the clip. Do not stretch the cables too
tightly.
NO TE
There are two types of clips which are described as follows:
● A 3-hole clip is shown by illustration a in Figure 1-42. It is often used to fasten feeders.
● A 6-hole clip is shown by illustration b in Figure 1-42. It is often used to fasten power
cables and CPRI optical fibers.
Figure 1-42 Exterior of the clips
(1) Cable hole for a
feeder
(2) Cable hole for a CPRI
optical fiber
(3) Cable hole for a
power cable
 
Figure 1-43 shows the cables secured on a cable tray.
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Figure 1-43 Cables secured on a cable tray
(1) 3-hole clip (2) 6-hole clip
 
Figure 1-44 shows the cables secured on a tower.
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Figure 1-44 Cables secured on a tower
(1) 3-hole clip (2) 6-hole clip
 
Special Cabling Requirements
Cabling of power cables
● Power cables must be installed in the position specified in engineering design
documents.
● If the length of power cables is insufficient, replace the cables rather than
adding connectors or soldering joints to lengthen the cables.
● Cables can only be routed under well-planned instructions. The cabling
activities are allowed only when qualified personnel and communication
facilities are available.
● Do not circle or twist cables.
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● After routing a DC power cable onto the platform on a tower, route it along
the shortest path to the rails surrounding the platform, and route it along the
inside of the rails.
● After routing a DC power cable near the equipment on a tower, use clips to
secure the power cable onto a pole or the rails surrounding the platform.
Ensure that the distance between the equipment and the position where the
cable is secured is not too long.
Cabling of PGND cables
● PGND cables for a base station must be connected to the same group of
ground bars.
● PGND cables cannot be routed overhead outdoors. All PGND cables must be
buried in the ground or laid out indoors.
● The external conductor of the coaxial wire and the shield layer of the shielded
cable must have proper electrical contact with the metal surface of the
equipment to which they are connected.
● PGND cables and signal cables must be installed with a certain distance
reserved between them to prevent interference from each other.
● Switches or fuses must not be installed on the PGND cables.
● Other devices must not be used for electrical connections of the PGND cables.
● All the metal parts in the housing of the equipment must be reliably
connected to the ground terminal.
Cabling of E1 cables
● E1 cables cannot be crossed with power cables, PGND cables, or RF cables. If
transmission cables are routed with power cables, PGND cables, or RF cables
in parallel, the spacing between them must be greater than 30 mm (1.18 in.).
● E1 cables must be lined up straight and bound neatly with cable ties.
● Sufficient slack is provided in E1 cables at turns.
● E1 cables must not be pressed by the door of the cabinet when routed
through the cabinet, as shown in Figure 1-45.
Figure 1-45 E1 cables routed in the cabinet
Cabling of optical fibers
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● At least three people are required for routing optical fibers. The cabling
activities of optical fibers are allowed only when qualified personnel and
communication facilities are available.
● Optical fibers are used within the temperature range of –40°C (–40°F) to
+60°C (+140°F). If the current temperature is out of the range, make
protection measures or route the cables again.
● Do not circle or twist cables.
● Do not bind optical fibers at the position where they bend.
● Do not stretch, step on, or place heavy objects on optical fibers. Keep the
optical fibers away from sharp objects.
● When optical fibers are routed, the excess of the optical fibers must be coiled
around special devices, such as a fiber coiler.
● A patch cord must be bound using binding straps. If an optical fiber needs to
be secured in a cabinet or a piece of equipment, use binding straps to bind it
and then use cable ties to secure the binding straps to the cabinet or
equipment. Ensure that the optical fibers can flexibly move in the cable ties.
Right angle bending is not allowed. Figure 1-46 shows correct and incorrect
binding of optical fibers.
Figure 1-46 Binding optical fibers
● When coiling optical fibers, apply even strength. Do not bend the optical
fibers with force.● Unused optical connectors must be covered with dustproof caps.
● The optical fibers must not be pressed by the door of the cabinet when routed
through the cabinet, as shown in Figure 1-47, Figure 1-48, and Figure 1-49.
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Figure 1-47 CPRI optical fibers routed in the cabinet (1)
Figure 1-48 CPRI optical fibers routed in the cabinet (2)
Figure 1-49 FE/GE optical fibers routed in the cabinet
● After routing an optical fiber onto the platform on a tower, route it along the
shortest path to the rails surrounding the platform, and route it along the
inside of the rails.
● After routing an optical fiber near the equipment on a tower, use clips to
secure the optical fiber onto a pole or the rails surrounding the platform.
Ensure that the distance between the equipment and the position where the
optical fiber is secured is not too long.
● Coil the excess of the optical fibers near the equipment on the tower before
securing the cables onto the tower.
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1.11.2 Cables Connections
This section describes how to route and bind the cables according to the planned
cable routes.
The following figure shows the cable routes.
Figure 1-50 Cable routes
1.11.3 Installing an AAU PGND Cable
This section describes the procedure and precautions for installing an AAU PGND
cable.
Prerequisites
A PGND cable has been prepared.
Context
The following table lists the specifications of an AAU PGND cable.
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Table 1-5 Specifications of an AAU PGND cable
Cable One End
Connected to the
AAU
One End
Connected to the
Ground Bar
Color
AAU PGND cable OT terminal (M6,
16 mm2 or 0.025
in.2)
OT terminal (M8,
16 mm2 or 0.025
in.2)
Yellow and green
 
Procedure
Step 1 Connect one end of the AAU PGND cable with an M6 OT terminal to the ground
terminal on the mounting kits, and use a torque wrench to tighten the ground
bolt to 4.8 N·m (42.48 lbf·in.). Connect the other end of the cable with an M8 OT
terminal to the external ground bar, and use a torque wrench to tighten the
ground bolt to 12 N·m (106.21 lbf·in.).
Figure 1-51 Installing the AAU PGND cable (one AAU on a pole)
NO TE
Crimp OT terminals in correct directions when installing an AAU PGND cable, as shown in
the following figure.
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Figure 1-52 Correct and incorrect positions of OT terminals
Step 2 Route the cable by following the instructions in 1.11.1 Cabling Requirements.
Step 3 Attach labels to the cable by following the instructions in Attaching a Cable-Tying
Label.
----End
1.11.4 Installing Power Cables
This section describes the procedure and precautions for installing power cables.
NO TE
The exterior of a module in this section is for reference only.
Prerequisites
The power cable has been prepared. For details, see Preparing an AAU Power
Cable.
Context
The following table lists power cable connections.
Table 1-6 AAU power cable connections
Power
Equipment
Cable On the Power
Equipment Side
On the AAU Side
DCDU16D AAU power cable Bare wire Outdoor quick-
lock power
connector
 
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CA UTION
● Ensure that an AAU power cable is connected to the AAU first. The AAU power
cable can be connected to the power equipment only after the cable
connection on the AAU is complete and the AAU is to be powered on. An
incorrect sequence or reverse connection of the power cable will cause damage
to the AAU or injuries to the human body.
● Before connecting an AAU power cable, ensure that the power cable is not
connected to any power supply.
● A drip loop needs to be prepared for a cable near a port on the AAU. The cable
must not be routed higher than the corresponding port to prevent the AAU
from being damaged by rainwater flowing along the cable.
NO TE
● Colors and exteriors of cables may vary with countries and regions.
● The cables are black and blue in most regions, whereas blue and gray in the UK and red
and blue in China.
CA UTION
When installing an AAU power cable for a running base station, connect the cable
to the AAU before connecting it to the power equipment. An incorrect sequence or
reverse connection of the power cable will cause damage to the AAU or injuries to
the human body.
Procedure
Step 1 Push the dustproof cap lever of the power port to loosen the dustproof cap.
Figure 1-53 Pushing the lever to loosen the dustproof cap
Step 2 Remove the dustproof cap from the power port.
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Figure 1-54 Removing the dustproof cap
Step 3 Open the lever on the outdoor quick-lock power connector and connect the
connector to the power port on the AAU, as shown by step a in the following
figure. Close the lever completely until you hear a click, as shown by step b in the
following figure.
Figure 1-55 Installing the power cable with an outdoor quick-lock power
connector
Step 4 Connect the other end of the power cable to the port on the power equipment.
● The procedure for the DCDU16D power supply solution is as follows:
a. Before connecting cables, ensure that the circuit breaker is turned off.
When the circuit breaker is turned off, the handle is pulled out and the
indicator is green, as shown in the following figure.
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Figure 1-56 Circuit breaker status before cable connection
b. Strip the sheaths off cables based on the cable stripping ruler for the
circuit breaker. Figure 1-57 shows the inapplicable cable specifications.
Figure 1-58 shows the cable stripping ruler.
Figure 1-57 Inapplicable cable specifications
Figure 1-58 Cable stripping ruler
c. Connect the connectors on the AAU power cables on the AAU side to the
power ports on the AAUs. For details about the specifications of the wires
of a power cable, see the AAU hardware description document of the
corresponding model.
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CA UTION
▪ When installing an AAU power cable for a running base station,
connect the cable to the AAU before connecting it to the power
equipment. An incorrect sequence or reverse connection of the power
cable will cause damage to the AAU or injuries to the human body.
d. Connect the RTN and NEG power cables to the LOAD0 to LOAD2 ports on
the DCDU16D.
i. Insert the Φ3 flat-head screwdriver into the "+" and "-" tool holes of
the circuit breaker obliquely in sequence, and insert the prepared
power cables into the "+" and "-" connection holes. Ensure that the
core wires contact the bottom of the connection hole and do not
split. The following figure shows the positions of the "+" and "-" tool
holes and connection holes.
Figure 1-59 Installing the RTN and NEG power cables
ii. Remove the flat-head screwdriver from the tool hole of the circuit
breaker.
iii. Pull each power cable slightly to check whether it is securely
connected. If the power cable is pulled out a bit or the wires are
exposed outside the hole, remove the power cable, cut the split
wires, and then strip the sheath and install the power cable again.
e. After the cable connection, route the power cables through the cable
claw and secure the cables, as shown in the following figure.
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Figure 1-60 Securing power cables (scenario 1: 0 m to 70 m or 0 ft to
229.66 ft)
Figure 1-61 Securing power cables (scenario 2: 70 m to 100 m or 229.66
ft to 328.08 ft)
f. Press the handle of the circuit breaker and turn on the circuit breaker to
supply power to loads. When the circuit breaker is turned on, the handle
is pressed and the indicator is red, as shown in the following figure.
Figure 1-62 Circuit breaker status after cable connection
Step 5 Route the cables by following the instructions in 1.11.1 Cabling Requirements.
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Step 6 Attach labels to the cables by following the instructions in Attaching a Cable-Tying
Label.
----End
1.11.5 Installing a CPRI Optical Fiber
This section describes the procedure and precautions for installing a CPRI optical
fiber.
NO TE
The exterior of a module in this section is for reference only.
Prerequisites
The rate of the optical module to be installed must be the same as the rate of the
CPRI port.
Figure 1-63 Connector components
(1) Shell (2) Lever (3) Stop plane (4) Tongue
(5) Rubber plug (6) Rubber stopper (7) Nut -
Procedure
Step 1 Unscrew the nut of the outdoor quick-lock optical fiber connector and remove a
rubber stopper from the rubber plug. Pull the cord at the end of the plug to
remove the plug out of the connector shell, and place the plug on the side of the
connector, as shown in the following figure.
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Figure 1-64 Unscrewing the connector nut and removing a rubber stopper
NO TICE
● Gently remove the rubber plug and stopper to avoid breaking the anti-falling
tape.
● When installing one optical fiber, remove only one stopper and reserve the
other one.
● When installing two optical fibers, remove two stoppers.
Step 2 Cut off cable ties of the cable, remove the corrugated pipe, and cut off the
traction sling. Bind an anti-falling cable tie at the position about 500 mm (19.69
in.) away from the connector on the optical fiber.
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Figure 1-65 Binding an anti-falling cable tie
NO TICE
● The cable tie can prevent the outdoor quick-lock optical fiber connector from
sliding down along the optical fiber.
● Do not remove the dustproof cap from the outdoor quick-lock optical fiber
connector.
Step 3 Route the optical fiber through the nut and the shell of the outdoor quick-lock
optical fiber connector in sequence.
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Figure 1-66 Routing the optical fiber through the outdoor quick-lock optical fiber
connector
Step 4 Push the lever to loosen the dustproof cap on the CPRI port of the AAU.
Figure 1-67 Pushing the lever to loosen the dustproof cap
Step 5 Remove the dustproof cap from the CPRI port of the AAU and the dustproof plug
from the optical module.
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Figure 1-68 Removing the dustproof cap and dustproof plug
NO TICE
The performance of an optical module may deteriorate if it is exposed to the air
for a long time. Therefore, keep the optical module plugged with a dustproof plug
before you connect an optical fiber to an optical module.
Step 6 Connect the end labeled 1A and 1B on the optical fiber to the optical module on
the AAU side, as shown in the following figure.
NO TE
● If a two-fiber bidirectional optical module is used, install an optical fiber according to
Figure 1-69.
● If a single-fiber bidirectional optical module is used, install an optical fiber according to
Figure 1-70.
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Figure 1-69 Installing a CPRI optical fiber for a two-fiber bidirectional optical
module
Figure 1-70 Installing a CPRI optical fiber for a single-fiber bidirectional optical
module
NO TICE
Strictly follow the cable installation process to prevent optical fibers from being
severely bent.
Step 7 Insert the outdoor quick-lock optical fiber connector into the CPRI port and close
the lever.
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Figure 1-71 Inserting and fastening the outdoor quick-lock optical fiber connector
NO TICE
● When the lever is completely closed, you will hear a click.
● After the installation, cut off the anti-falling cable tie.
Step 8 Put the optical fiber into the plug through the opening of the plug on the side.
Push the rubber plug into the hole at the bottom of the connector.
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Figure 1-72 Putting the optical fiber into the rubber plug hole
CA UTION
● Push the rubber plug and hold the optical fiber to prevent it from being bent.
● Push the rubber plug until it cannot move.
Step 9 Push the rubber plug into the hole at the bottom of the outdoor quick-lock optical
fiber connector.
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Figure 1-73 Pushing the rubber plug
NO TICE
Ensure that the rubber plug is inserted completely and cannot move further.
Step 10 Use an adjustable wrench to tighten the nut to a recommended torque of 4 N·m
(35.40 lbf·in.), as shown by illustration a in the following figure. Ensure that the
nut is level with the stop plane of the connector lever, as shown by illustration b in
the following figure.
Figure 1-74 Tightening the nut by referring to the stop plane
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(1) Stop plane (2) Handle (3) Tongue
NO TICE
● The nut must completely cover the tongue at the bottom of the stop plane on
the lever.
● The nut must be tightened to be level with the stop plane of the lever. After
the tightening, the nut must closely contact the handles of the lever.
Step 11 Connect the end labeled 2A and 2B on the optical fiber to the SFP optical module
on a CPRI port on a BBP in the BBU3910/BBU5900.
NO TE
If a single-fiber bidirectional optical fiber is used, install the optical fiber according to the
following figure.
Figure 1-75 Installing a single-fiber bidirectional optical fiber
Step 12 Route the cable by following the instructions in 1.11.1 Cabling Requirements.
Step 13 Attach labels to the cable by following the instructions in Attaching a Cable-Tying
Label.
----End
1.12 Adjusting the Mechanical Downtilt
This section describes the procedure and precautions for adjusting the mechanical
downtilt of an AAU.
Context
● When the downtilt supporting arm is installed onto the upper handle, the
adjustable range is 0° to 20°.
● When the downtilt supporting arm is installed onto the lower handle, the
adjustable range is –20° to 0°.
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NO TE
The mechanical downtilt of an AAU ranges from –20° to +20°. If the required downtilt
is beyond this range, contact local Huawei engineers for evaluation.
● The following figure shows the installation of downtilt supporting arms.
Figure 1-76 Installation of downtilt supporting arms
(a) Downtilt supporting arminstalled
on the upper handle of an AAU
(b) Downtilt supporting arm installed
on the lower handle of an AAU
 
When the downtilt supporting arm is installed onto the upper handle, perform the
following steps.
Procedure
Adjusting the mechanical downtilt by using the inclinometer
Step 1 Loosen the six bolts (marked by the red dashed lines in Figure 1-77) on the
attachment plate of the downtilt supporting arm and AAU mounting kits to the
adjustable status. (Do not remove the bolts.)
Step 2 According to the scale plate, adjust the mechanical downtilt of the downtilt
supporting arm to an angle close to the required angle, as shown in Figure 1-77.
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Figure 1-77 Adjusting the mechanical downtilt by using the scale on the support
for the downtilt supporting arm
NO TE
Push the heat sink fins on both sides of the handle to increase the downtilt. Pull the lower
end of the handle to reduce the downtilt.
Step 3 Place the inclinometer on the AAU and check whether it is adjusted to the
required angle. If not, adjust the AAU until the angle displayed on the
inclinometer reaches the required angle.
Step 4 After the mechanical downtilt is adjusted, use a torque wrench to tighten the bolts
loosened in step 1 to 40 N·m (354.03 lbf·in.).
Step 5 Remove the inclinometer from the AAU and pack the inclinometer up.
----End
When the downtilt supporting arm is installed onto the lower handle, perform the
following steps.
Procedure
Adjusting the mechanical downtilt by using the inclinometer
Step 1 Loosen the six bolts (marked by the red dashed lines in Figure 1-78) on the
attachment plate of the downtilt supporting arm and AAU mounting kits to the
adjustable status. (Do not remove the bolts.)
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Step 2 According to the scale plate, adjust the mechanical downtilt of the downtilt
supporting arm to an angle close to the required angle, as shown in Figure 1-78.
Figure 1-78 Adjusting the mechanical downtilt by using the scale on the support
for the downtilt supporting arm
NO TE
Push the heat sink fins on both sides of the handle to increase the downtilt. Pull the lower
end of the handle to reduce the downtilt.
Step 3 Place the inclinometer on the AAU and check whether it is adjusted to the
required angle. If not, adjust the AAU until the angle displayed on the
inclinometer reaches the required angle.
Step 4 After the mechanical downtilt is adjusted, use a torque wrench to tighten the bolts
loosened in step 1 to 40 N·m (354.03 lbf·in.).
Step 5 Remove the inclinometer from the AAU and pack the inclinometer up.
----End
1.13 Installation Checklist
This chapter describes the checklist for AAU hardware installation.
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Table 1 describes the checklist for AAU hardware installation.
Table 1-7 Hardware installation checklist
No. Check Item
1 The installation position of each device strictly complies with the
engineering design and meets clearance requirements. Sufficient space
is reserved for device maintenance.
2 An AAU is securely attached to an attachment plate, and the
attachment plate is securely attached to mounting kits.
3 Waterproof check: If you install an optical fiber in the outdoor quick-
lock optical fiber connector, remove only one stopper and keep the
other stopper.
4 There are no connectors or joints on the power cable or PGND cable.
5 Terminals at both ends of the power cable or PGND cable are securely
crimped.
6 None of the power cables and PGND cables is short-circuited or
reversely connected. In addition, these cables are not damaged or
broken.
7 Power cables and PGND cables are separately bound.
8 The grounding system for the building must be separated from that for
the antenna.
9 The connectors of each signal cable are intact and securely connected,
and these cables are not damaged or broken.
10 Mounting kits are securely installed.
11 Labels are correct, legible, and complete at both ends of each cable,
such as the CPRI optical fiber.
 
1.14 Powering On an AAU
This section describes the procedure and precautions for powering on an AAU.
D ANGER
● Before power-on, check whether the positive and negative conducting wires of
all power cables are correctly connected. Any incorrect power cable connection
may cause damage to equipment or unexpected injuries of human body.
● Exercise caution when performing a power-on check, which involves high
voltage operations. Direct contact with the input voltage or indirect contact
with the input voltage using a damp object may be fatal.
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NO TICE
● An AAU must be powered on within 24 hours after being unpacked. During
maintenance, the power-off time of an AAU cannot exceed 24 hours.
● After the AAU is powered on and starts working, the personnel must keep a
distance from the front of the AAU. The distance must meet the requirements
of local laws and regulations.
The following figure shows the process for powering on an AAU.
Figure 1-79 Powering on an AAU
NO TE
● When –48 V DC power supply is used, the input voltage of an AAU ranges from –36 V
DC to –63 V DC.
● The RUN indicator on the AAU is on for 1s and off for 1s. The ALM indicator is steady
off.
1.15 Appendix
This section describes auxiliary operations during the installation process.
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1.15.1 Adding an Outdoor Quick-Lock Power Connector to the
AAU Power Cable on the AAU Side
Procedure
Step 1 Press the lever unlock button on the outdoor quick-lock power connector (as
shown by illustration 1 in the following figure), open the lever, press the unlock
button of the inner part (as shown by illustration 2 in the following figure), and
remove the inner part of the connector (as shown by illustration 3 in the following
figure).
Figure 1-80 Unlocking and removing the inner part of the connector
(1) Lever unlock button (2) Inner part unlock
button
(3) Inner part of the
power connector
Step 2 Unscrew the nut on the shell and insert the power cable into the shell of the
power connector. Do not let the nut fall off.
Figure 1-81 Routing the power cable
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(1) Inner waterproof rubber ring (2) Shell nut
NO TICE
The connector is configured with two layers of waterproof rubber rings. When the
cross-sectional area of the power cable is greater than or equal to 6 mm2 (0.009
in.2) or 7 AWG, remove and discard the inner waterproof rubber ring.
Step 3 Determine the length of the power cable for different operations based on the
cable diagram, as shown in the following figure.
Figure 1-82 Determine the cable length based on the cable diagram
Step 4 Strip the specified length of the sheath off the power cable, as shown in the
following figure.
Figure 1-83 Stripping the specified length of the sheath off the power cable
NO TICE
When stripping the sheath off the power cable, do not damage the shield layer.
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Step 5 Strip a specified length of sheath off each core wire. The length must be
consistent with the length of the notch in the outdoor quick-lock power connector,
as shown in the following figure.
Figure 1-84 Stripping the sheath off each core wire
Step 6 Open the cable lock lever (as shown by step a in the followingfigure) of the inner
part of the outdoor quick-lock power connector, loosen the screw (as shown by
the red dashed line in the following figure), and open the shielding clip (as shown
in step b in the following figure).
Figure 1-85 Opening the cable lock lever and shielding clip
(1) Cable lock lever (2) Shielding clip
Step 7 Connect the blue core wire labeled NEG(-) to the "-" port and the black/
brown/red core wire labeled RTN(+) to the "+" port on the connector. Observe the
contact between the spring and conductor through the windows, as shown in the
following figure.
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Figure 1-86 Observing the contact between the spring and conductor
(1) Spring (2) Conductor (3) Sheath
NO TICE
● Check the following items through the window: The conductor must be pressed
by the spring. The length of the wire inserted into the connector is proper. The
spring must not press the sheath of the wire. No copper wire is bent.
● If the wires are not properly locked, check the stripping length.
Step 8 Press the cable lock lever, slightly pull the power cable until it is straight and
cannot be moved, lock the shielding clip, and use an M3 Phillips screwdriver to
tighten the bolt (as shown by the red dashed line in the following figure) to 1.4
N·m (12.39 lbf·in.). Then, press the lever until it does not bounce back to ensure
that the wires are locked.
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Figure 1-87 Pressing the cable lock lever and locking the shielding clip
Step 9 Push the inner part back into the shell until you hear a click. Then, the inner part
is completely inserted.
Figure 1-88 Inserting the inner part into the connector shell
Step 10 Use an adjustable wrench to tighten the nut with a recommended torque of 9
N·m (79.66 lbf·in.) (as shown by step b in the following figure) until it is in close
contact with the stop plane (as shown by step a in the following figure).
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Figure 1-89 Completing the installation
(1) Stop plane
----End
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	Contents
	1 AAU5636 Installation Guide
	1.1 Changes in AAU5636 Installation Guide
	1.2 Installation Preparations
	1.2.1 Documents
	1.2.2 Tools and Instruments
	1.2.3 Requirements for Onsite Personnel
	1.3 Installation Scenarios
	1.3.1 Requirements for the Pole
	1.3.2 Installation Clearance Requirements
	1.4 Unpacking Check
	1.5 Installation Process
	1.6 Installing an Optical Module
	1.7 Preparing PGND and Power Cables
	1.8 Assembling Mounting Kits
	1.9 Installing an Upper Main Bracket onto a Pole
	1.10 Lifting an AAU
	1.10.1 Binding an AAU
	1.10.2 Lifting an Assembled AAU onto a Tower
	1.10.2.1 Lifting an AAU onto a Tower
	1.10.2.2 Lifting Optical Fibers onto a Tower
	1.10.2.3 Lifting Power Cables onto a Tower
	1.10.3 Lifting an Assembled AAU onto a Rooftop
	1.10.4 Installing an AAU onto a Pole
	1.11 Installing Cables
	1.11.1 Cabling Requirements
	1.11.2 Cables Connections
	1.11.3 Installing an AAU PGND Cable
	1.11.4 Installing Power Cables
	1.11.5 Installing a CPRI Optical Fiber
	1.12 Adjusting the Mechanical Downtilt
	1.13 Installation Checklist
	1.14 Powering On an AAU
	1.15 Appendix
	1.15.1 Adding an Outdoor Quick-Lock Power Connector to the AAU Power Cable on the AAU Side