Huawei RRU3262 User Manual

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RRU3262

Installation Guide

Issue 01

Date 2014-11-20

HUAWEI TECHNOLOGIES CO., LTD.

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: http://www.huawei.com

Email: support@huawei.com

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RRU3262 Installation Guide

Purpose

This document describes the process of installing a DC blade RRU3262 (referred to as RRU in this document).

Product Versions

The following table lists the product versions related to this document.

About This Document

Product Name Solution Version Product Version

DBS3900

Intended Audience

This document is intended for:

Base station installation engineers

Organization

1 Changes in RRU3262 Installation Guide

This section describes the changes in the RRU3262 Installation Guide.

l SRAN8.0 and later

versions

l eRAN6.0 and later

versions

V100R008C00 and later versions

2 Installation Preparations

This chapter describes the reference documents, tools, and instruments that must be ready before the installation. In addition, it specifies the skills and prerequisites that installation engineers must have.

3 Information About the Installation

Before installing an RRU, you must be familiar with its exterior, ports, indicators, installation options and installation clearance requirements.

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4 Unpacking the Equipment

This chapter describes how to unpack and check the delivered equipment to ensure that all the materials are included and intact.

5 Installation Process

The installation process involves installing an RRU and RRU cables, checking the RRU hardware installation, and powering on an RRU.

6 (Optional) Installing the Plastic Shells of the RRU

This section describes the procedure for installing the plastic shells of the RRU.

7 Hoisting an RRU and Related Cables onto a Tower

This section describes the procedure for hoisting an RRU and related cables onto a tower and the precautions that must be taken.

8 Installing the RRU

This chapter describes the procedure for installing the RRU. The procedure for installing the RRU varies depending on installation options.

Conventions

9 Installing RRU Cables

This chapter describes the procedure for installing RRU cables.

10 Checking the RRU Hardware Installation

After an RRU is installed, check the hardware installation.

11 Powering On an RRU

After all the devices are installed, check the power-on status of an RRU.

12 Appendix

This section describes the procedure for adding an easy power receptacle (pressfit type) connector.

Symbol Conventions

The symbols that may be found in this document are defined as follows.

Symbol Description

Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.

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Symbol Description

Indicates a potentially hazardous situation which, if not avoided, could result in equipment damage, data loss, performance deterioration, or unanticipated results.

NOTICE is used to address practices not related to personal injury.

Calls attention to important information, best practices and tips.

NOTE is used to address information not related to personal injury, equipment damage, and environment deterioration.

General Conventions

The general conventions that may be found in this document are defined as follows.

Convention Description

Times New Roman Normal paragraphs are in Times New Roman.

Boldface Names of files, directories, folders, and users are in

boldface. For example, log in as user root.

Italic Book titles are in italics.

Courier New

Examples of information displayed on the screen are in Courier New.

Command Conventions

The command conventions that may be found in this document are defined as follows.

Convention Description

Boldface The keywords of a command line are in boldface.

Italic Command arguments are in italics.

[ ] Items (keywords or arguments) in brackets [ ] are optional.

{ x | y | ... } Optional items are grouped in braces and separated by

vertical bars. One item is selected.

[ x | y | ... ] Optional items are grouped in brackets and separated by

vertical bars. One item is selected or no item is selected.

{ x | y | ... }

Optional items are grouped in braces and separated by vertical bars. A minimum of one item or a maximum of all items can be selected.

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Convention Description

[ x | y | ... ]

Optional items are grouped in brackets and separated by vertical bars. Several items or no item can be selected.

GUI Conventions

The GUI conventions that may be found in this document are defined as follows.

Convention Description

Boldface Buttons, menus, parameters, tabs, window, and dialog titles

are in boldface. For example, click OK.

> Multi-level menus are in boldface and separated by the ">"

signs. For example, choose File > Create > Folder.

Keyboard Operations

The keyboard operations that may be found in this document are defined as follows.

Format Description

Key Press the key. For example, press Enter and press Tab.

Key 1+Key 2 Press the keys concurrently. For example, pressing Ctrl+Alt

+A means the three keys should be pressed concurrently.

Key 1, Key 2 Press the keys in turn. For example, pressing Alt, A means

the two keys should be pressed in turn.

Mouse Operations

The mouse operations that may be found in this document are defined as follows.

Action Description

Click Select and release the primary mouse button without moving

the pointer.

Double-click Press the primary mouse button twice continuously and

quickly without moving the pointer.

Drag Press and hold the primary mouse button and move the

pointer to a certain position.

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Contents

About This Document.....................................................................................................................ii

1 Changes in RRU3262 Installation Guide..................................................................................1

2 Installation Preparations..............................................................................................................3

2.1 Reference Documents.....................................................................................................................................................4

2.2 Tools and Instruments....................................................................................................................................................4

2.3 Skills and Requirements for Onsite Personnel...............................................................................................................6

3 Information About the Installation...........................................................................................7

3.1 RRU Exterior..................................................................................................................................................................8

3.2 RRU Ports.......................................................................................................................................................................8

3.3 RRU Indicators.............................................................................................................................................................10

3.4 Installation Scenarios....................................................................................................................................................12

3.5 Installation Clearance Requirements of an RRU..........................................................................................................23

3.5.1 Clearance for a Single RRU......................................................................................................................................23

3.5.2 Clearance for Three or More RRUs...........................................................................................................................27

3.5.3 Installation Spacing Between RRUs..........................................................................................................................31

4 Unpacking the Equipment.........................................................................................................34

5 Installation Process.....................................................................................................................36

6 (Optional) Installing the Plastic Shells of the RRU..............................................................37

7 Hoisting an RRU and Related Cables onto a Tower............................................................40

7.1 Hoisting an RRU onto a Tower....................................................................................................................................41

7.2 Hoisting Fiber Optic Cables onto a Tower...................................................................................................................45

7.3 Hoisting Power Cables onto a Tower...........................................................................................................................47

8 Installing the RRU.......................................................................................................................50

8.1 Mounting Kits for an RRU...........................................................................................................................................51

8.2 Installing the RRU on a Pole........................................................................................................................................52

8.2.1 Installing a Single RRU.............................................................................................................................................52

8.2.2 Installing Two RRUs.................................................................................................................................................55

8.2.3 Installing Three or More RRUs.................................................................................................................................59

8.3 Installing an RRU on U-steel .......................................................................................................................................64

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8.4 Installing an RRU on Angle Steel................................................................................................................................69

8.5 Installing an RRU on a Wall.........................................................................................................................................74

8.6 Installing an RRU on an IFS06.....................................................................................................................................79

9 Installing RRU Cables................................................................................................................86

9.1 Cabling Requirements..................................................................................................................................................88

9.2 RRU Cable Connections...............................................................................................................................................94

9.3 Installing RRU Cables..................................................................................................................................................96

9.4 RRU Cables..................................................................................................................................................................97

9.5 Installing an RRU PGND Cable...................................................................................................................................98

9.6 Installing an RRU RF Jumper....................................................................................................................................100

9.7 Installing an RRU AISG Multi-Wire Cable and AISG Extension Cable...................................................................103

9.8 Installing an RRU Alarm Cable..................................................................................................................................105

9.9 Opening the Cover Plate of an RRU Cabling Cavity.................................................................................................107

9.10 Installing a CPRI Optical Cable...............................................................................................................................108

9.11 Installing an RRU Power Cable................................................................................................................................110

9.12 Closing the Cover Plate of an RRU Cabling Cavity................................................................................................112

10 Checking the RRU Hardware Installation..........................................................................115

11 Powering On an RRU.............................................................................................................116

12 Appendix...................................................................................................................................118

12.1 Adding a Tool-Less Female Connector (Pressfit Type) to the RRU Power Cable on the RRU Side......................119

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1 Changes in RRU3262 Installation Guide

01 (2014-11-20)

1 Changes in RRU3262 Installation Guide

This section describes the changes in the RRU3262 Installation Guide.

This is the first official release.

Compared with draft C (2014-11-10), this issue does not include any new information.

Compared with draft C (2014-11-10), this issue does not includes any change.

Compared with draft C (2014-11-10), no information is deleted from this issue.

Draft C (2014-11-10)

This is a draft.

Compared with Draft B (2014-10-24), this issue includes the following change:

Topic Change Description

9.11 Installing an RRU Power Cable Modified the precautions in the background

12.1 Adding a Tool-Less Female Connector (Pressfit Type) to the RRU Power Cable on the RRU Side

information.

Added the precaution that do not reversely connect the positive and negative poles in the procedure.

Compared with Draft B (2014-10-24), this issue does not include any new information and no information is deleted from this issue.

Draft B (2014-10-24)

This is a draft.

Compared with Draft A (2014-09-30), this issue includes the following change:

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RRU3262 Installation Guide 1 Changes in RRU3262 Installation Guide

Topic Change Description

3.4 Installation Scenarios Optimized the description of restrictions.

8 Installing the RRU Optimized the description of the distance

between the mounting kit and the ground.

Compared with Draft A (2014-09-30), this issue does not include any new information and no information is deleted from this issue.

Draft A (2014-05-30)

This is a draft.

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RRU3262 Installation Guide 2 Installation Preparations

2 Installation Preparations

About This Chapter

2.1 Reference Documents

Before the installation, you must be familiar with reference documents.

2.2 Tools and Instruments

You must prepare the following tools and instruments before the installation.

2.3 Skills and 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.

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2.1 Reference Documents

Before the installation, you must be familiar with reference documents.

The following reference documents are required during RRU installation:

l RRU3262 Hardware Description

l DBS3900 Installation Guide

l OCB User Guide

l OCB-01M User Guide

2.2 Tools and Instruments

You must prepare the following tools and instruments before the installation.

Hammer drill (a bit)

Heat gun Phillips screwdriver (M3 to

Rubber mallet COAX crimping tool Wire stripper

ESD gloves Vacuum cleaner

Flat-head screwdriver (M3 to

M6)

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Utility knife Cable cutter

Level

Torque screwdriver

5 mm

Adjustable wrench (size ≥ 32 mm [1.26 in.])

Torque wrench

Size: 16 mm (0.63 in.) and 32 mm (1.26 in.)

Combination wrench

Size: 16 mm (0.63 in.) and 32 mm (1.26 in.)

Torque socket

5 mm

(M3 to M6)

Multimeter

Marker (diameter ≤ 10 mm

Measuring tape

[0.39 in.])

Inner hexagon wrench Fixed pulley Lifting sling

Hydraulic pliers - -

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2.3 Skills and 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 items:

l The customer's technical engineers must be trained by Huawei and be familiar with the

proper installation and operation methods.

l The number of onsite personnel depends on the engineering schedule and installation

environment. Generally, only three to five onsite personnel are necessary.

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RRU3262 Installation Guide 3 Information About the Installation

3 Information About the Installation

About This Chapter

Before installing an RRU, you must be familiar with its exterior, ports, indicators, installation options and installation clearance requirements.

3.1 RRU Exterior

This section describes the exterior and dimensions of an RRU.

3.2 RRU Ports

This section describes ports on the RRU panels. An RRU has a bottom panel, cabling cavity panel, and indicator panel.

3.3 RRU Indicators

This section describes six indicators on an RRU. They indicate the running status of the RRU.

3.4 Installation Scenarios

An RRU can be installed on a pole, U-steel, angle steel, wall, or IFS06. Installation scenarios must meet heat-dissipation and waterproofing requirements of the RRU.

3.5 Installation Clearance Requirements of an RRU

This section describes the requirements for the installation clearance of a single RRU and multiple RRUs and the requirements for the installation spacing between RRUs.

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3.1 RRU Exterior

This section describes the exterior and dimensions of an RRU.

Figure 3-1 shows the exterior of an RRU.

Figure 3-1 RRU exterior

3 Information About the Installation

Figure 3-2 shows RRU dimensions.

Figure 3-2 RRU dimensions

3.2 RRU Ports

This section describes ports on the RRU panels. An RRU has a bottom panel, cabling cavity panel, and indicator panel.

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Figure 3-3 shows the ports on the RRU panels.

Figure 3-3 Ports on the RRU panels

Table 3-1 describes ports and indicators on the RRU panels.

Table 3-1 Ports and indicators on the RRU panels

Item Silkscreen Remarks

(1) Ports in the cabling

RTN(+) Power supply socket

cavity

NEG(-)

CPRI0 Optical/electrical port 0, connected to the

BBU

CPRI1 Optical/electrical port 1, connected to the

BBU

(2) Bottom ports ANT_TX/RXA TX/RX port A, supporting RET signal

transmission

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Item Silkscreen Remarks

ANT_TX/RXB TX/RX port B, supporting RET signal

transmission

ANT_RXC TX/RX port C

ANT_RXD TX/RX port D

EXT_ALM Alarm monitoring port used for monitoring

one RS485 signal and two dry contact signals

RET Communication port for the RET antenna,

supporting RET signal transmission

(3) Indicator RUN For details, see 3.3 RRU Indicators.

ALM

ACT

VSWR

NOTE

l The port for transmitting RET signals is determined by the software.

l Connect the CPRI0 port to the BBU by default in the single-mode scenario.

3.3 RRU Indicators

This section describes six indicators on an RRU. They indicate the running status of the RRU.

For detailed positions of RRU indicators, see 3.2 RRU Ports.

Table 3-2 describes RRU indicators.

Table 3-2 RRU Indicators

Indicator Color Status Meaning

CPRI0

CPRI1

RUN Green Steady on The power input is available, but the board is

faulty.

Steady off No power input is available or the board is

faulty.

Blinking (on for

The board is running properly.

1s and off for 1s)

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Indicator Color Status Meaning

Blinking (on for

0.125s and off for

The board software is being loaded or the board is not working.

0.125s)

ALM Red Steady on Alarms are generated, and the module must

be replaced.

Blinking (on for 1s and off for 1s)

Alarms are generated. The alarms may be caused by faults on the related board or ports. Therefore, you need to locate the fault before deciding whether to replace the module.

Steady off No alarms are generated.

ACT Green Steady on The board is working properly when TX

channels are enabled or software is being loaded to a board that is not started.

Blinking (on for 1s and off for 1s)

The board is running with TX channels disabled.

VSWR Red Steady off No voltage standing wave ratio (VSWR)

alarm is generated.

Blinking (on for 1s and off for 1s)

VSWR alarms are generated on the ANT_TX/RXB port.

CPRI0 Red and

green

CPRI1 Red and

green

Steady on VSWR alarms are generated on the

ANT_TX/RXA port.

Blinking (on for

0.125s and off for

VSWR alarms are generated on the ANT_TX/RXA and ANT_TX/RXB ports.

0.125s)

Steady green The CPRI link is running properly.

Steady red An optical module fails to receive or transmit

signals possibly because the optical module is faulty or the optical fiber is broken.

Blinking red (on for 1s and off for 1s)

The CPRI link is out of lock because of faults on the mutual lock of dual-mode clock sources or mismatched data rates on CPRI ports.

Steady off The optical module cannot be detected or is

powered off.

Steady green The CPRI link is running properly.

Steady red An optical module fails to receive or transmit

signals possibly because the optical module is faulty or the optical fiber is broken.

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Indicator Color Status Meaning

Blinking red (on for 1s and off for 1s)

Steady off The optical module cannot be detected or is

3.4 Installation Scenarios

An RRU can be installed on a pole, U-steel, angle steel, wall, or IFS06. Installation scenarios must meet heat-dissipation and waterproofing requirements of the RRU.

Requirements for the Installation Scenarios

Application scenarios:

To ensure proper heat dissipation of the RRU, the following requirements must be met:

l The RRU cannot be installed in an enclosed cabinet without a cooling system.

l The RRU cannot be installed in an enclosed camouflage box.

The CPRI link is out of lock because of faults on the mutual lock of dual-mode clock sources or mismatched data rates on CPRI ports.

powered off.

l The RRU cannot be installed in an enclosed equipment room without a cooling system.

l When multiple RRUs are installed in centralized mode, the minimum clearance

requirements must be met. For details about the minimum clearance requirements, see 3.5.2

Clearance for Three or More RRUs and 3.5.3 Installation Spacing Between RRUs.

l RRU mounting kits in assembled installation mode are not allowed in indoor scenarios.

NOTICE

If the RRU is inappropriately installed, heat dissipation of the RRU deteriorates and the RRU may not work properly, as shown in Figure 3-4.

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Figure 3-4 inappropriately installed RRU

Correct installation methods:

l The installation supports' specifications described in this document are only based on the

exterior and dimensions of the mounting kits. Before installing equipment, assess the strength and reliability of the installation support to determine whether it can bear the weight of the equipment.

l To ensure the heat dissipation of the RRU and waterproofing of the ports at the bottom of

the RRU, the vertical deviation angle of an RRU must be less than or equal to 10 degrees, as shown Figure 3-5.

l On a tower, an RRU can be installed on a pole, angle steel, or U-steel. The side-mounted

installation mode (one side instead of the rear of an RRU is mounted on the support) is recommended for RRUs on the main pole secured on a tower. This installation mode allows multiple RRUs to be installed next to each other at the same level on a pole. When the horizontal distance between the main and auxiliary poles on a tower is equal to or greater than 810 mm (23.62 in.), the side-mounted mode is recommended for installing RRUs on the auxiliary pole to meet the minimum clearance requirements. Otherwise, the standard mode is recommended for installing RRUs on the auxiliary pole.

Figure 3-5 Requirements for the vertical deviation angle of an RRU

(1) RRU

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(2) Installation support (pole, U-steel, angle steel, or wall)

RRU3262 Installation Guide 3 Information About the Installation

Installing an RRU on a Pole

Figure 3-6 shows the diameter of a pole for installing an RRU.

Figure 3-6 Diameter of a pole

NOTICE

l The diameter of a pole for installing an RRU ranges from 60 mm (2.36 in.) to 114 mm (4.49

in.). The recommended diameter is 80 mm (3.15 in.).

l When the diameter of a pole ranges from 60 mm (2.36 in.) to 76 mm (2.99 in.), a maximum

of three RRUs can be installed on the pole and the side-mounted installation is recommended.

l Only a pole whose diameter ranges from 76 mm (2.99 in.) to 114 mm (4.49 in.) supports

more than three RRUs.

l The recommended thickness of the pole wall is 3.5 mm (0.14 in.) or above.

Figure 3-7 shows a single RRU installed on a pole.

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Figure 3-7 A single RRU installed on a pole

Figure 3-8 shows two RRUs installed on a pole.

Figure 3-8 Two RRUs installed on a pole

Figure 3-9, Figure 3-10, and Figure 3-11 show multiple RRUs installed on a pole.

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Figure 3-9 Three RRUs installed on a pole

Figure 3-10 Four RRUs installed on a pole

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Figure 3-11 Six RRUs installed on a pole

Installing an RRU on U-Steel

Figure 3-12 shows U-steel specifications.

Figure 3-12 U-steel specifications

NOTICE

U-steel only supports the standard or reverse installation of a single RRU.

Figure 3-13 shows an RRU installed on U-steel.

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Figure 3-13 RRU installed on U-steel

Installing an RRU on Angle Steel

Figure 3-14 shows angle steel specifications.

Figure 3-14 Angle steel specifications

NOTICE

Angle steel only supports the standard or reverse installation of a single RRU.

Figure 3-15 shows an RRU installed on angle steel.

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Figure 3-15 RRU installed on angle steel

Installing an RRU on a Wall

The wall for installing RRUs must meet the following requirements:

l For each RRU, the wall must be able to bear a weight four times heavier than the RRU's

weight and the bolts' pulling force of 1.25 kN (281.25 lbf) vertical to the wall.

l Expansion bolts must be tightened to 30 N•m to ensure that the bolts work properly and

the wall remains intact.

NOTICE

l The standard installation is recommended for RRUs installed on a wall.

l When RRUs are installed on a wall in side-mounted mode, do not combine mounting brackets

for multiple RRUs, as shown in Figure 3-16.

Figure 3-16 Correct installation of mounting brackets for multiple RRUs installed on a wall in side-mounted mode

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Figure 3-17 shows an RRU installed on a wall.

Figure 3-17 RRU installed on a wall

Installing an RRU on an IFS06

l The upper and lower adjustable beams on an IFS06 can be moved up and down to fit for

heights of RRUs.

l The IFS06 supports at least three RRUs when the ambient temperature is higher than or

equal to the lowest operating temperature of the RRUs and at least 5°C (41°F) lower than the highest operating temperature of the RRUs. The IFS06 supports a maximum of six RRUs when the ambient temperature is higher than or equal to the lowest operating temperature of the RRUs and at least 10°C (50°F) lower than the highest operating temperature of the RRUs.

NOTE

For details about the operating temperature of the RRUs, see section "Technical Specifications of RRUs" in 3900 Series Base Station Technical Description.

NOTICE

The mounting brackets for multiple RRUs cannot be combined when the RRUs are installed on an IFS06, as shown in Figure 3-18.

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Figure 3-18 Correct installation of mounting brackets for RRUs installed on an IFS06

Figure 3-19 and Figure 3-20 show RRUs installed on an IFS06.

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Figure 3-19 Three RRUs installed on an IFS06

(1) Height-restricted scenario (2) Height-unrestricted scenario

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Figure 3-20 Six RRUs installed on an IFS06

(1) Height-restricted scenario (2) Height-unrestricted scenario

3.5 Installation Clearance Requirements of an RRU

This section describes the requirements for the installation clearance of a single RRU and multiple RRUs and the requirements for the installation spacing between RRUs.

3.5.1 Clearance for a Single RRU

This section describes the recommended and minimum clearances for a single RRU.

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NOTICE

If an RRU is installed on the bitumen ground, the RRU must be at least 500 mm (700 mm or more as recommended) away from the bitumen ground. The following describes the space requirements for installing a single RRU on the non-bitumen ground.

NOTE

l The recommended clearances ensure normal running and provide appropriate space for operation and

maintenance (O&M). If the installation space is sufficient, leave the recommended clearances after installing the equipment.

l The minimum clearance ensures normal running and heat dissipation, but O&M activities such as

checking indicator status and opening the cabling cavity cannot be properly conducted. If the installation space is restricted, leave the minimum clearance after installing the equipment.

Clearance for a Single RRU in Side-Mounted Mode

Figure 3-21 shows the clearance for a single RRU in side-mounted mode.

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Figure 3-21 Clearance for a single RRU in side-mounted mode

Clearance for a Single RRU in Standard or Reverse Mode

Figure 3-22 shows the clearance for a single RRU in standard or reverse mode.

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Figure 3-22 Clearance for a single RRU in standard or reverse mode

Clearance for a Single Tower-Mounted RRU

Figure 3-23 and Figure 3-24 show the minimum clearances for a single RRU in side-mounted

mode and standard or reverse mode on a tower.

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Figure 3-23 Minimum clearance for a single RRU in side-mounted mode on a tower

Figure 3-24 Minimum clearance for a single RRU in standard or reverse mode on a tower

3.5.2 Clearance for Three or More RRUs

This section describes the recommended and minimum clearances for three or more RRUs.

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NOTICE

NOTE

l The recommended clearances ensure normal running and provide appropriate space for operation and

maintenance (O&M). If the installation space is sufficient, leave the recommended clearances after installing the equipment.

l The minimum clearance ensures normal running and heat dissipation, but O&M activities such as

checking indicator status and opening the cabling cavity cannot be properly conducted. If the installation space is restricted, leave the minimum clearance after installing the equipment.

Recommended Clearances for Three or More RRUs Installed in Centralized Mode

Figure 3-25 shows the recommended clearances for three or more RRUs installed in centralized

mode.

Figure 3-25 Recommended clearances for three or more RRUs installed in centralized mode

Minimum Clearances for Three or More RRUs Installed in Centralized Mode

Figure 3-26 shows the minimum clearances for three or more RRUs installed in centralized

mode.

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RRU3262 Installation Guide 3 Information About the Installation

Figure 3-26 Minimum clearances for three or more RRUs installed in centralized mode

Recommended Clearances for Three or More RRUs Installed in Standard Mode on a Wall

Figure 3-27 shows the recommended clearances for three or more RRUs installed in standard

mode on a wall.

Figure 3-27 Recommended clearances for three or more RRUs installed in standard mode on a wall

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RRU3262 Installation Guide 3 Information About the Installation

Minimum Clearances for Three or More RRUs Installed in Standard Mode on a Wall

Figure 3-28 shows the minimum clearances for three or more RRUs installed in standard mode

on a wall.

Figure 3-28 Minimum clearances for three or more RRUs installed in standard mode on a wall

Recommended Clearances for Three or More RRUs Installed in Side-Mounted Mode on a Wall

Figure 3-29 shows the recommended clearances for three or more RRUs installed in side-

mounted mode on a wall.

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3 Information About the Installation

Figure 3-29 Recommended clearances for three or more RRUs installed in side-mounted mode on a wall

3.5.3 Installation Spacing Between RRUs

This section describes the horizontal and vertical spacing between RRUs.

Recommended Horizontal Spacing Between RRUs

Figure 3-30 shows the recommended horizontal spacing between RRUs.

Figure 3-30 Recommended horizontal spacing between RRUs

Minimum Horizontal Spacing Between RRUs

Figure 3-31 shows the minimum horizontal spacing between RRUs.

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Figure 3-31 Minimum horizontal spacing between RRUs

Recommended Vertical Spacing Between RRUs

Figure 3-32 shows the recommended vertical spacing between RRUs.

Figure 3-32 Recommended vertical spacing between RRUs

3 Information About the Installation

Minimum Vertical Spacing Between RRUs

Figure 3-33 shows the minimum vertical spacing between RRUs.

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Figure 3-33 Minimum vertical spacing between RRUs

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Context

4 Unpacking the Equipment

This chapter describes how to unpack and check the delivered equipment to ensure that all the materials are included and intact.

Procedure

Step 1 Check the total number of articles in each case according to the packing list.

NOTE

When transporting, moving, or installing the equipment, components, or parts, you must:

l Prevent them from colliding with doors, walls, shelves, or other objects.

l Wear clean gloves, and avoid touching the equipment, components, or parts with bare hands, sweat-

soaked gloves, or dirty gloves.

NOTICE

l After a cabinet or an BBU is unpacked, it must be powered on within 7 days.

l After an RRU is unpacked, it must be powered on within 24 hours.

If ... Then ...

The total number tallies with the packing list

The total number does not tally with the packing list

Step 2 Check the exterior of the packing case.

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Go to Step 2.

Find out the cause and report any missing articles to the local Huawei office.

RRU3262 Installation Guide 4 Unpacking the Equipment

If ... Then ...

The outer packing is intact Go to Step 3.

The outer packing is severely damaged or soaked

Step 3 Check the type and quantity of the equipment in the cases according to the packing list.

If ... Then ...

Types and quantity of the article tally with those on the packing list

Either shipment shortage, wrong shipment or damaged articles.

Find out the cause and report it to the local Huawei office.

Sign the Packing List with the customer.

Report to the local Huawei office.

CAUTION

l To protect the equipment and prevent damage to the equipment, you are advised to keep the

unpacked equipment and packing materials indoors, take photos of the stocking environment, packing case or carton, packing materials, and any rusted or eroded equipment, and then file the photos.

l Verify that the insulation layers of all RRU cables are intact. If the insulation layers are

damaged or broken, water will penetrate into the cables, which may cause damages to RRUs or human injury.

----End

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RRU3262 Installation Guide 5 Installation Process

5 Installation Process

The installation process involves installing an RRU and RRU cables, checking the RRU hardware installation, and powering on an RRU.

Figure 5-1 shows the installation process.

Figure 5-1 Process of installing an RRU

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6 (Optional) Installing the Plastic Shells of the RRU

6 (Optional) Installing the Plastic Shells of the

RRU

This section describes the procedure for installing the plastic shells of the RRU.

Context

Procedure

Step 1 Use an M6 Phillips screwdriver to loosen the two screws on the metal sheet of the RRU and

An RRU is equipped with a plastic shell only when necessary.

remove the metal sheet, as shown in Figure 6-1.

Figure 6-1 Removing the metal sheet

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RRU3262 Installation Guide 6 (Optional) Installing the Plastic Shells of the RRU

(1) Screw (2) Metal sheet

Step 2 Install a buckle on each side at the bottom of the RRU, and use an M4 torque wrench to tighten

the screws on the buckles to 1.4 N·m (12.39 lbf·in.), as shown in Figure 6-2.

Figure 6-2 Installing buckles at the bottom

(1) Buckle

(2) Screw

Step 3 Use four hex screws to secure the plastic shells onto the RRU and use an M6 hex key wrench

to tighten the screws to 2.8 N·m (24.78 lbf·in.), as shown in Figure 6-3.

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RRU3262 Installation Guide 6 (Optional) Installing the Plastic Shells of the RRU

Figure 6-3 Installing the plastic shells of the RRU

----End

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RRU3262 Installation Guide 7 Hoisting an RRU and Related Cables onto a Tower

7 Hoisting an RRU and Related Cables onto a

Tower

About This Chapter

This section describes the procedure for hoisting an RRU and related cables onto a tower and the precautions that must be taken.

7.1 Hoisting an RRU onto a Tower

This section describes the procedures and precautions for hoisting an RRU and its mounting kits onto a tower. In tower-mounted scenarios, the RRU can be installed on a pole, U-steel, or angle steel.

7.2 Hoisting Fiber Optic Cables onto a Tower

This section describes the procedure for hoisting fiber optic cables onto a tower and the precautions that must be taken.

7.3 Hoisting Power Cables onto a Tower

This section describes the procedure for hoisting power cables onto a tower and the precautions that must be taken.

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7.1 Hoisting an RRU onto a Tower

This section describes the procedures and precautions for hoisting an RRU and its mounting kits onto a tower. In tower-mounted scenarios, the RRU can be installed on a pole, U-steel, or angle steel.

Prerequisites

When the RRU is powered by an AC/DC power module, you need to install the AC/DC power module onto the RRU before hoisting them onto a tower. For detailed operations, see AC/DC Power Module User Guide or OPM15M User Guide.

NOTICE

l Do not stand the RRU upright because the RF ports cannot support the weight of the RRU.

Procedure

Step 1 After climbing up to the tower, technician A secures the fixed pulley to the tower platform

Step 2 Technician C binds the mounting kits using the lifting sling and traction sling on the ground, as

l Place a foam pad or cardboard under the RRU to protect the RRU housing from damage

during the installation.

support and leads the lifting sling through the fixed pulley.

shown in Figure 7-1. Then technician B pulls the lifting sling downwards, and technician C pulls the traction sling outwards to protect the mounting kits from colliding with the tower.

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Figure 7-1 Binding mounting kits for the RRU

(1) Lifting sling (2) Traction sling

Step 3 Technician A catches the mounting kits and then unties the slings.

Step 4 Install the mounting kits. For detailed operations, see steps 1 to 3 in 8.2.1 Installing a Single

RRU.

Step 5 Technician C binds the RRU using the lifting sling and traction sling, as shown in Figure 7-2.

The binding methods in Figure 7-3 and Figure 7-4 are incorrect.

Figure 7-2 Binding the RRU

(1) Handle

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(2) Lifting sling (3) Traction eye (4) Traction sling

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7 Hoisting an RRU and Related Cables onto a Tower

Figure 7-3 Incorrect binding method (1)

Figure 7-4 Incorrect binding method (2)

Step 6 Hoist the RRU onto the tower, as shown in Figure 7-5. Technician B pulls the lifting sling

downwards, and technician C pulls the traction sling outwards to protect the RRU from colliding with the tower.

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Figure 7-5 Hoisting the RRU onto the tower

(1) Lifting sling (2) Fixed pulley (3) Traction sling

NOTICE

l The load-bearing capacity of each sling must be greater than 200 kg (441 lb) and the diameter

of each sling must be less than 25 mm (0.98 in.).

l When hoisting each device onto a tower, protect them from colliding with the tower.

l Hoist the RRU onto the tower before it is installed on a pole, angle steel, or U-steel.

l Do not hoist any thing by the traction eye.

Step 7 Technician A catches the RRU hoisted onto the tower.

Step 8 Technician A installs the RRU onto the main bracket and uses an inner hexagon torque

screwdriver to tighten the captive screw into the hole of the attachment plate and main bracket to 5 N·m (44.25 lbf·in.). For detailed operations, see steps 4 and 5 in 8.2.1 Installing a Single

RRU.

Step 9 Untie the lifting sling and traction sling.

NOTE

The procedure for hoisting the RRU and its mounting kits onto the tower is for your reference only.

----End

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7 Hoisting an RRU and Related Cables onto a Tower

7.2 Hoisting Fiber Optic Cables onto a Tower

This section describes the procedure for hoisting fiber optic cables onto a tower and the precautions that must be taken.

Context

Cabling requirements for power cables are met. For details, see 9.1 Cabling Requirements.

Procedure

Step 1 Hoist the fiber optic cables onto the tower, as shown in Figure 7-6.

Figure 7-6 Hoisting fiber optic cables onto the tower

(1) Lifting sling

(2) Fixed pulley (3) Traction sling

NOTICE

Before hoisting fiber optic cables onto the tower, connect the fiber optic cables to the RRU or BBU based on the labels on both ends of the cables and determine the hoisting direction.

1. After climbing up to the tower, installation engineer A secures the fixed pulley to the tower platform support and leads the lifting sling through the fixed pulley.

2. Installation engineer B places the fiber coiler for coiling fiber optic cables on the fiber spools, and installation engineer D lead the lifting sling through the stretch sling of the fiber

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optic cables and use the other sling as a traction sling to secure the cables 4 m (13.12 ft) away from the lifting sling, as shown in Figure 7-7.

Figure 7-7 Binding fiber optic cables

(1) Lifting sling (2) Stretch sling (3) Traction sling

NOTICE

Do not remove the stretch sling and protection pipe or bind fiber optic cables using one sling, as shown in Figure 7-8.

Figure 7-8 Incorrect binding method

3. Installation engineer B rotates the fiber spools at the speed of 5 m (16.4 ft) to 15 m (49.21 ft) per minute to coil the fiber optic cables.

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4. Installation engineer C pulls the lifting sling downwards, and installation engineer D pulls the traction sling outwards to protect the fiber optic cables from colliding with the tower.

Step 2 Secure the fiber optic cables to the tower vertically using cable clips.

Step 3 Remove the lifting sling, traction sling, and protection pipe.

NOTE

The procedure for hoisting the fiber optic cables onto the tower is for your reference only.

----End

7.3 Hoisting Power Cables onto a Tower

This section describes the procedure for hoisting power cables onto a tower and the precautions that must be taken.

Context

Cabling requirements for power cables are met. For details, see 9.1 Cabling Requirements.

Procedure

Step 1 Hoist the power cables onto the tower, as shown in Figure 7-9.

The procedure for adding a connector to the RRU power cable on the RRU side is done under the tower.

Figure 7-9 Hoisting power cables onto the tower

(1) Lifting sling

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(2) Fixed pulley

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7 Hoisting an RRU and Related Cables onto a Tower

1. After climbing up to the tower, installation engineer A secures the fixed pulley to the tower platform support and leads the lifting sling through the fixed pulley.

2. Installation engineer B secures three cable ties to the power cable connector, and then secures the power cable to the lifting sling, as shown in Figure 7-10.

NOTE

The connector on the power cable in the figure is only an example. The actual connector may vary according to the situation.

Figure 7-10 Binding cable ties

3. Installation engineer B wraps the power cable connector with a layer of PVC insulation tape, as shown in Figure 7-11.

NOTE

Wrap the PVC insulation tape from 30 mm (1.18 in.) away from one end of the connector until it reaches the other end of the connector. The total length of the wrapped connector is 100 mm (3.94 in.).

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Figure 7-11 Wrapping the PVC insulation tape

4. Installation engineer C pulls the lifting sling downwards, and installation engineer B pulls the other end of the lifting sling outwards to protect the power cables from colliding with the tower.

Step 2 Secure the power cables to the tower vertically using cable clips.

Step 3 Remove the cable ties, PVC insulation tape, and lifting sling.

NOTE

The procedure for hoisting the power cables onto the tower is for your reference only.

----End

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RRU3262 Installation Guide

About This Chapter

8 Installing the RRU

This chapter describes the procedure for installing the RRU. The procedure for installing the RRU varies depending on installation options.

8.1 Mounting Kits for an RRU

This section describes the bracket assembly and the attachment plate for an RRU.

8.2 Installing the RRU on a Pole

One or more RRUs can be installed on a pole.

8.3 Installing an RRU on U-steel

This section describes the procedure and precautions for installing an RRU on U-steel. An RRU can be installed on U-steel secured on the ground or a tower. Each piece of U-steel allows only one RRU to be installed in standard or reverse mode.

8.4 Installing an RRU on Angle Steel

This section describes the procedure and precautions for installing an RRU on angle steel. An RRU can be installed on angle steel secured on the ground or a tower. Each piece of angle steel allows only one RRU to be installed in standard or reverse mode.

8.5 Installing an RRU on a Wall

This section describes the procedure and precautions for installing an RRU on a wall.

8.6 Installing an RRU on an IFS06

This section describes the procedure and precautions for installing an RRU on an IFS06.

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RRU3262 Installation Guide 8 Installing the RRU

8.1 Mounting Kits for an RRU

This section describes the bracket assembly and the attachment plate for an RRU.

Figure 8-1 shows the front and side of an RRU.

Figure 8-1 Front and side view of an RRU

(1) Front view (2) Side view (3) Attachment plate

Figure 8-2 shows the bracket assembly for an RRU.

Figure 8-2 12 L blade RRU mounting kit

(1) Plastic cap

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(2) Standard M10 nut (3) Spring washer (4) Thick flat washer (5) Square-neck bolt

RRU3262 Installation Guide 8 Installing the RRU

(6) Hoist clamp on the main bracket

(7) Main bracket (8) Inner hexagon

screw

8.2 Installing the RRU on a Pole

One or more RRUs can be installed on a pole.

8.2.1 Installing a Single RRU

This section describes the procedure and precautions for installing a single RRU on a pole.

Prerequisites

Before you install an RRU on a pole secured on a tower, the RRU and its mounting brackets are hoisted onto the tower. For details, see 7.1 Hoisting an RRU onto a Tower.

The hoist clamp on the main bracket is secured properly.

(9) Pole installation bracket

(10) Auxiliary bracket

Procedure

Step 1 Determine a position for installing the mounting brackets.

NOTICE

l Do not stand an RRU upright because the RF ports cannot support the weight of the RRU.

l Place a foam pad or cardboard under an RRU to protect the RRU housing from damage

during the installation.

l If the RRU is installed on a tower, determine a position for installing the mounting brackets

according to the instructions in 3.5.1 Clearance for a Single RRU.

l If the RRU is installed on the ground, determine a position for installing the mounting

brackets according to Figure 8-3.

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8 Installing the RRU

Figure 8-3 Distance between the mounting brackets and the ground

NOTE

As shown in the figure above, it is recommended that the mounting kits be installed at a position 1200 mm (47.24 in.) to 1600 mm (59.06 in.) high above the ground. If the space is insufficient, only the 3.5 Installation Clearance Requirements of an RRU needs to be provided.

Step 2 Install the RRU mounting brackets, as shown in Figure 8-4.

Figure 8-4 Installing the RRU mounting brackets

NOTE

Ensure that the arrows on the mounting brackets are pointing up.

1. Adjust the position of the nut and remove the square-neck bolt at the open end from the slot on the auxiliary bracket.

2. Slide the mounting brackets onto the pole horizontally and insert the square-neck bolt into the slot.

Step 3 Use a 16 mm (0.63 in.) M10 torque wrench to tighten the nuts to 40 N·m (354.03 lbf·in.) so that

the mounting brackets are secured onto the pole, as shown in Figure 8-5.

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8 Installing the RRU

NOTICE

Tighten the nuts on the two square-neck bolts simultaneously. After the main and auxiliary brackets are secured properly, measure the spacing between the brackets on both sides and ensure that the spacing is the same on the two sides.

Figure 8-5 Securing the RRU mounting brackets

Step 4 Install the RRU onto the main bracket, as shown in Figure 8-6.

Figure 8-6 Installing the RRU onto the main bracket

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RRU3262 Installation Guide

Step 5 Use an inner hexagon torque screwdriver to tighten the captive screw into the holes on the top

8 Installing the RRU

of the attachment plate and main bracket to 5 N·m (44.25 lbf·in.) so that the attachment plate and main bracket are firmly secured, as shown in Figure 8-7.

Figure 8-7 Securing the captive screw into the connection hole

----End

8.2.2 Installing Two RRUs

This section describes the procedure and precautions for installing two RRUs on a pole.

Prerequisites

The hoist clamp on the main bracket is secured properly.

NOTICE

l Do not stand an RRU upright because the RF ports cannot support the weight of the RRU.

l Place a foam pad or cardboard under an RRU to protect the RRU housing from damage

during the installation.

Procedure

Step 1 Install the first RRU onto the main bracket, as shown in Figure 8-8. For details, see 8.2.1

Installing a Single RRU.

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8 Installing the RRU

Figure 8-8 Installing the first RRU onto the main bracket

Step 2 Use an M6 inner hexagon screwdriver to loosen the four hex socket screws from the main bracket

and pole installation brackets on the second set of mounting brackets, and remove the main bracket, as shown in Figure 8-9.

Figure 8-9 Removing the RRU main bracket

(1) Main bracket

(2) Pole installation bracket

Step 3 Install the removed main bracket on one side of the first main bracket, as shown in Figure

8-10.

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8 Installing the RRU

NOTICE

The second main bracket must be installed, with the open ends of U-shaped slots on both sides facing downwards.

Figure 8-10 Installing the second main bracket

(1) Removed main bracket

NOTE

The main mounting bracket for installing a blade RRU can connect to the main mounting bracket for installing a common RRU in the scenarios of adding RRUs, as shown in Figure 8-11.

Figure 8-11 Connect to the main mounting bracket for installing a common RRU

(1) Main mounting bracket for a blade RRU

(2) Main mounting bracket for a common RRU

Step 4 Install the second RRU onto the main bracket, as shown in Figure 8-12.

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Figure 8-12 Installing the second RRU onto the main bracket

NOTICE

After installing each RRU on its main bracket, use an inner hexagon torque screwdriver to tighten the captive screw into the holes of the attachment plate and main bracket to 5 N·m (44.25 lbf·in.) so that the attachment plate and main bracket are firmly secured, as shown in Figure 8-13

Figure 8-13 Securing the captive screw into the connection hole

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Step 5 Install the sheet metal tab for fixing the neighboring RRUs, as shown in Figure 8-14.

8 Installing the RRU

Figure 8-14 Installing the sheet metal tab

(1) Screw (2) Sheet metal tab

1. Use an M6 Phillips screwdriver to loosen the screw on the sheet metal tab farther from the handle of the second RRU and remove the screw.

2. Use an M6 Phillips screwdriver to loosen the screw on the sheet metal tab closer to the handle of the second RRU. Then, rotate the sheet metal tab to align the vacant hole in the sheet metal tab with a hole on the top of the first RRU.

3. Insert the removed screw into the hole on the top of the first RRU and use an M6 torque screwdriver to tighten the screw to 5 N·m (44.25 lbf·in.).

----End

8.2.3 Installing Three or More RRUs

This section describes the procedure and precautions for installing three or more RRUs on a pole.

Prerequisites

The hoist clamp on the main bracket is secured properly.

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Context

Procedure

Step 1 Install two RRUs, as shown in Figure 8-15. For detailed installation process, see 8.2.2 Installing

8 Installing the RRU

NOTICE

l Do not stand an RRU upright because the RF ports cannot support the weight of the RRU.

l Place a foam pad or cardboard under an RRU to protect the RRU housing from damage

during the installation.

A pole supports three, four, or six RRUs. The procedures for installing them are the same. The following provides an example for the procedure of installing four RRUs on a pole.

Two RRUs.

Figure 8-15 Two RRUs installed on a pole

Step 2 Use an M6 inner hexagon screwdriver to loosen the four hex socket screws from the main bracket

and pole installation brackets on the second set of mounting brackets, and remove the main bracket, as shown in Figure 8-16.

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Figure 8-16 Removing the RRU main bracket

(1) Main bracket (2) Pole installation bracket

Step 3 Install the third main bracket and install the third RRU onto the third main bracket. Then, use

an inner hexagon torque screwdriver to tighten the captive screw into the holes on the top of the attachment plate and main bracket for the RRU to 5 N·m (44.25 lbf·in.), as shown in Figure

8-17.

NOTICE

The third main bracket must be installed, with the open ends of U-shaped slots on both sides facing downwards.

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8 Installing the RRU

Figure 8-17 Installing the third RRU onto the third main bracket

NOTE

The main mounting bracket for installing a blade RRU can connect to the main mounting bracket for installing a common RRU in the scenarios of adding RRUs, as shown in Figure 8-18.

Figure 8-18 Connect to the main mounting bracket for installing a common RRU

(1) Main mounting bracket for a blade RRU

(2) Main mounting bracket for a common RRU

Step 4 Install the sheet metal tab for fixing the neighboring RRUs, as shown in Figure 8-19.

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RRU3262 Installation Guide 8 Installing the RRU

Figure 8-19 Installing the sheet metal tab

(1) Screw (2) Sheet metal tab

1. Use an M6 Phillips screwdriver to loosen the screw on the sheet metal tab farther from the handle of the first RRU and remove the screw.

2. Use an M6 Phillips screwdriver to loosen the screw on the sheet metal tab closer to the handle of the first RRU. Then, rotate the sheet metal tab to align the vacant hole in the sheet metal tab with a hole on the top of the third RRU.

3. Insert the removed screw into the hole on the top of the third RRU and use an M6 torque screwdriver to tighten the screw to 5 N·m (44.25 lbf·in.).

Step 5 Install the second set of RRU mounting brackets at least 80 mm (3.15 in.) above or below the

first set of RRU mounting brackets, as shown in Figure 8-20.

Figure 8-20 Installing the second set of RRU mounting brackets

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RRU3262 Installation Guide

Step 6 Install the fourth RRU onto the fourth main bracket, use an inner hexagon torque screwdriver

8 Installing the RRU

to tighten the captive screw into the holes on the top of the attachment plate and main bracket to 5 N·m (44.25 lbf·in.) so that the attachment plate and main bracket are firmly secured, as shown in Figure 8-21.

Figure 8-21 Installing the fourth RRU on the fourth main bracket

----End

8.3 Installing an RRU on U-steel

Prerequisites

Before you install an RRU on U-steel secured on a tower, the RRU and its mounting brackets are hoisted onto the tower. For details, see 7.1 Hoisting an RRU onto a Tower.

The hoist clamp on the main bracket is secured properly.

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Context

8 Installing the RRU

NOTICE

l Do not stand an RRU upright because the RF ports cannot support the weight of the RRU.

l Place a foam pad or cardboard under an RRU to protect the RRU housing from damage

during the installation.

Figure 8-22 shows the top view of an RRU installed on U-steel.

NOTICE

When the width of the narrower edges of the U-steel is less than 40 mm (1.57 in.), only the a and b modes are supported.

Figure 8-22 Top view of an RRU

(1) U-steel

Procedure

Step 1 Determine a position for installing the mounting brackets.

l If the RRU is installed on a tower, determine a position for installing the mounting brackets

according to the instructions in 3.5.1 Clearance for a Single RRU.

l If the RRU is installed on the ground, determine a position for installing the mounting

brackets according to the instructions in Figure 8-23.

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8 Installing the RRU

Figure 8-23 Distance between the mounting brackets and the ground

NOTE

Step 2 Install the RRU mounting brackets, as shown in Figure 8-24.

Figure 8-24 Installing the RRU mounting brackets

NOTE

Ensure that the arrows on the mounting brackets are pointing up.

1. Adjust the position of the nut and remove the square-neck bolt at the open end from the slot on the auxiliary bracket.

2. Slide the mounting brackets onto the U-steel horizontally and insert the square-neck bolt into the slot.

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RRU3262 Installation Guide 8 Installing the RRU

Step 3 Use a 16 mm (0.67 in.) M10 torque wrench to tighten the nuts to 40 N·m (354.03 lbf·in.) so that

the mounting brackets are secured onto the U-steel, as shown in Figure 8-25.

NOTICE

Figure 8-25 Securing the RRU mounting brackets

Step 4 Use an inner hexagon torque screwdriver to remove the attachment plate from one side of the

RRU, reinstall the attachment plate onto the rear of the RRU, and tighten the four stainless screws to 5 N·m (44.25 lbf·in.), as shown in Figure 8-26.

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8 Installing the RRU

Figure 8-26 Installing the attachment plate onto the rear of the RRU

Step 5 Install the RRU onto the main bracket, as shown in Figure 8-27.

Figure 8-27 Installing the RRU onto the main bracket

Step 6 Use an inner hexagon torque screwdriver to tighten the captive screw into the holes on the top

of the attachment plate and main bracket to 5 N·m (44.25 lbf·in.) so that the attachment plate and main bracket are firmly secured, as shown in Figure 8-28.

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8 Installing the RRU

Figure 8-28 Securing the captive screw into the connection hole

----End

8.4 Installing an RRU on Angle Steel

Prerequisites

Before you install an RRU on U-steel secured on a tower, the RRU and its mounting brackets are hoisted onto the tower. For details, see 7.1 Hoisting an RRU onto a Tower.

The hoist clamp on the main bracket is secured properly.

NOTICE

l Do not stand an RRU upright because the RF ports cannot support the weight of the RRU.

l Place a foam pad or cardboard under an RRU to protect the RRU housing from damage

during the installation.

Context

Figure 8-29 shows the top view of an RRU installed on angle steel.

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Procedure

Step 1 Determine a position for installing the mounting brackets.

8 Installing the RRU

Figure 8-29 Top view of an RRU

(1) Angle steel

l If the RRU is installed on angle steel secured on a tower, determine a position for installing

the mounting brackets according to the instructions in 3.5.1 Clearance for a Single

RRU.

l If the RRU is installed on angle steel secured on the ground, determine a position for

installing the mounting brackets according to Figure 8-30.

Figure 8-30 Distance between the mounting brackets and the ground

NOTE

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Step 2 Install the RRU mounting brackets, as shown in Figure 8-31.

Figure 8-31 Installing the RRU mounting brackets

NOTE

Ensure that the arrows on the mounting brackets are pointing up.

1. Adjust the position of the nut and remove the square-neck bolt at the open end from the slot on the auxiliary bracket.

2. Slide the mounting brackets onto the angle steel horizontally and insert the square-neck bolt into the slot.

Step 3 Use a 16 mm (0.67 in.) M10 torque wrench to tighten the nuts to 40 N·m (354.03 lbf·in.) so that

the mounting brackets are secured onto the angle steel, as shown in Figure 8-32.

NOTICE

Tighten the nuts on the two square-neck bolts synchronously. After the main and auxiliary brackets are secured properly, measure the spacing between the brackets on both sides and ensure that the spacing is the same on the two sides.

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8 Installing the RRU

Figure 8-32 Securing the RRU mounting brackets

Step 4 Use an inner hexagon torque screwdriver to remove the attachment plate from one side of the

RRU, reinstall the attachment plate onto the rear of the RRU, and tighten the four stainless screws to 5 N·m (44.25 lbf·in.), as shown in Figure 8-33.

Figure 8-33 Installing the attachment plate onto the rear of the RRU

Step 5 Install the RRU onto the main bracket, as shown in Figure 8-34.

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Figure 8-34 Installing the RRU onto the main bracket

Step 6 Use an inner hexagon torque screwdriver to tighten the captive screw into the holes on the top

of the attachment plate and main bracket to 5 N·m (44.25 lbf·in.) so that the attachment plate and main bracket are firmly secured, as shown in Figure 8-35.

Figure 8-35 Securing the captive screw into the connection hole

----End

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8.5 Installing an RRU on a Wall

This section describes the procedure and precautions for installing an RRU on a wall.

Prerequisites

The hoist clamp on the main bracket is secured properly.

NOTICE

l Do not stand an RRU upright because the RF ports cannot support the weight of the RRU.

l Place a foam pad or cardboard under an RRU to protect the RRU housing from damage

during the installation.

Context

Procedure

Step 1 Disassemble the RRU mounting brackets, as shown in Figure 8-36.

The wall on which RRUs are installed must meet the following requirements:

l For each RRU, the wall must be able to bear a weight four times heavier than the RRU's

weight and the bolts' pulling force of 1.25 kN (281.25 lbf) vertical to the wall.

l Expansion bolts must be tightened to 30 N·m to ensure that the bolts work properly and the

wall remains intact.

Figure 8-36 Disassembling the RRU mounting brackets

(1) Main bracket

(5) Flat washer (6) Spring washer (7) Nut (8) Plastic screw cap

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(2) Square-neck bolt (3) Pole installation bracket (4) Auxiliary bracket

RRU3262 Installation Guide

Step 2 Place the pole installation bracket against the wall, use a level to verify that the pole installation

8 Installing the RRU

1. Use an M6 inner hexagon torque screwdriver to remove the four inner hexagon screws on the pole installation bracket, and remove the main bracket from the pole installation bracket.

2. Use an M10 torque wrench to loosen the nuts on the two square-neck bolts, and remove the plastic screw cap, nuts, spring washers, flat washers, square-neck bolts, and pole installation bracket from the auxiliary bracket.

bracket is placed horizontally, and then mark anchor points with a marker, as shown in Figure

8-37.

Figure 8-37 Marking anchor points

(1) Level

(2) Pole installation bracket (3) RRU

NOTE

As shown in the figure above, it is recommended that the pole installation bracket be installed at a position 1200 mm (47.24 in.) to 1600 mm (59.06 in.) high above the ground. If the space is insufficient, only the

3.5 Installation Clearance Requirements of an RRU needs to be provided.

Step 3 Drill holes at the anchor points, and then insert expansion anchor bolts, as shown in Figure

8-38.

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8 Installing the RRU

Figure 8-38 Drilling holes and inserting expansion anchor bolts

(1) M10×80 bolt (2) Nut (3) Spring washer (4) Flat washer (5) Expansion sleeve

1. Use a hammer drill with a Ф12 bit to drill holes vertically at the marked anchor points with the depth ranging from 55 mm (2.17 in.) to 60 mm (2.36 in.), use a vacuum cleaner to clear the dust out from inside and around the holes, and measure the distances between holes. If any of the hole is beyond the acceptable range, mark a new anchor point and drill a new hole.

NOTICE

Take proper safety measures to protect your eyes and respiratory tract against the dust before drilling holes.

2. Tighten the expansion anchor bolts slightly and place one vertically into each hole.

3. Use a rubber mallet to pound the expansion anchor bolt until it goes into the hole completely.

4. Tighten and then loosen the expansion bolt, and remove the M10 bolt, spring washer, and flat washer in sequence.

NOTICE

After dismantling an expansion anchor bolt, ensure that the top of the expansion sleeve is on the same level as the wall. Otherwise, the device cannot be installed on the wall evenly and securely.

Step 4 Install the pole installation bracket on the expansion anchor bolts, place the flat washers, spring

washers, and nuts through the expansion anchor bolts in sequence, and then use a 16 mm (0.63 in.) torque socket to tighten the nuts to 30 N·m (265.52 lbf·in.), as shown in Figure 8-39.

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Figure 8-39 Installing the pole installation bracket on the expansion anchor bolts

NOTICE

Ensure that the arrows on the pole installation bracket are pointing up.

Step 5 Install the main bracket onto the pole installation bracket using four M6x16 inner hexagon

screws, and use an inner hexagon torque screwdriver to tighten the inner hexagon screws to 5 N·m (44.25 lbf·in.) so that the main bracket and pole installation bracket are firmly secured, as shown in Figure 8-40.

Figure 8-40 Installing the main bracket

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(1) Main bracket (2) Pole installation bracket

Step 6 Use an inner hexagon torque screwdriver to remove the attachment plate from one side of the

RRU, reinstall the attachment plate onto the rear of the RRU, and tighten the four stainless screws to 5 N·m (44.25 lbf·in.), as shown in Figure 8-41.

Figure 8-41 Installing the attachment plate onto the rear of the RRU

Step 7 Install the RRU onto the main bracket, as shown in Figure 8-42.

Figure 8-42 Installing the RRU onto the main bracket

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Step 8 Use an inner hexagon torque screwdriver to tighten the captive screw into the holes on the top

8 Installing the RRU

of the attachment plate and main bracket to 5 N·m (44.25 lbf·in.) so that the attachment plate and main bracket are firmly secured, as shown in Figure 8-43.

Figure 8-43 Securing the captive screw into the connection hole

----End

8.6 Installing an RRU on an IFS06

This section describes the procedure and precautions for installing an RRU on an IFS06.

Prerequisites

The hoist clamp on the main bracket is secured properly.

NOTICE

l Do not stand an RRU upright because the RF ports cannot support the weight of the RRU.

l Place a foam pad or cardboard under an RRU to protect the RRU housing from damage

during the installation.

Context

l The upper and lower adjustable beams on an IFS06 can be moved up and down to fit for

heights of RRUs.

l RRUs can be installed on an IFS06 when the ambient temperature is higher than or equal

to the lowest operating temperature of the RRUs and at least 5°C (41°F) lower than the

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Procedure

8 Installing the RRU

highest working temperature of the RRU. In this scenario, the IFS06 supports at least three RRUs. The IFS06 supports a maximum of six RRUs when the ambient temperature is higher than or equal to the lowest operating temperature of the RRUs and at least 10°C (50°F) lower than the highest operating temperature of the RRU.

NOTE

For details about the operating temperature of the RRUs, see section "Technical Specifications of RRUs" in 3900 Series Base Station Technical Description.

l Install RRUs in the sequence from bottom to top and from left to right.

l This section describes how to install an RRU in height-unrestricted scenarios. The

procedure for installing an RRU in height-restricted scenarios is the same as that in heightunrestricted scenarios.

l When installing the pole installation bracket, you need to use the M10x50 bolts delivered

with the IFS06.

l Rubber washers are easily compressed or broken, whereas do not need to be replaced.

Step 1 Disassemble the RRU mounting brackets, as shown in Figure 8-44.

Figure 8-44 Disassembling the RRU mounting brackets

(1) Main bracket

(2) Square-neck bolt (3) Pole installation bracket (4) Auxiliary bracket

(5) Flat washer (6) Spring washer (7) Nut (8) Plastic screw cap

1. Use an M6 inner hexagon torque screwdriver to remove the four inner hexagon screws on the pole installation bracket, and remove the main bracket from the pole installation bracket.

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Step 2 Use the M10x50 bolts delivered with the IFS06 to secure the pole installation bracket to the

8 Installing the RRU

IFS06, and then use an M10 torque socket wrench to secure the bolts to 30 N·m (265.52 lbf·in.).

NOTICE

Ensure that the arrows on the pole installation bracket are pointing up.

Install the pole installation bracket, as shown in Figure 8-45.

Figure 8-45 Installing the pole installation bracket in height-unrestricted scenarios

(1) Spring washer

(2) Rubber washer

Step 3 Attach the main bracket to the pole installation bracket, and use an inner hexagon screwdriver

to tighten four M6x16 screws to 5 N·m (44.25 lbf·in.) so that the main bracket and pole installation bracket are firmly secured, as shown in Figure 8-46.

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Figure 8-46 Installing the main bracket

(1) Main bracket (2) Pole installation bracket

Step 4 Attach the RRU to the main bracket, and then use an inner hexagon screwdriver to tighten the

captive screw into the holes of the attachment plate and main bracket to 5 N·m (44.25 lbf·in.) so that the attachment plate and main bracket are firmly secured, as shown in Figure 8-47.

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Figure 8-47 Installing the RRU onto the main bracket

Step 5 Install the RRUs on the lower level from left to right, as shown in Figure 8-48.

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Figure 8-48 Installing RRUs on the lower level

Step 6 Optional: Optional: When the ambient temperature is equal to or higher than the lowest

operating temperature of the RRU and at least 10°C (10°F) lower than the highest operating temperature of the RRU, repeat the preceding steps to install the RRUs on the higher level, as shown in Figure 8-49.

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Figure 8-49 Installing RRUs on the higher level

----End

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About This Chapter

9 Installing RRU Cables

This chapter describes the procedure for installing RRU cables.

9.1 Cabling Requirements

Cables must be routed according to the specified cabling requirements to prevent signal interference.

9.2 RRU Cable Connections

This section describes RRU cable connections.

9.3 Installing RRU Cables

This chapter describes the procedure for installing RRU cables.

9.4 RRU Cables

This section describes RRU cable connections.

9.5 Installing an RRU PGND Cable

This section describes the procedure for installing an RRU PGND cable.

9.6 Installing an RRU RF Jumper

This section describes the procedure for installing an RRU RF jumper.

9.7 Installing an RRU AISG Multi-Wire Cable and AISG Extension Cable

This section describes the procedures for installing an RRU AISG multi-wire cable and AISG extension cable.

9.8 Installing an RRU Alarm Cable

This section describes the procedure for installing an RRU alarm cable.

9.9 Opening the Cover Plate of an RRU Cabling Cavity

This section describes the procedure for opening the cover plate of an RRU cabling cavity.

9.10 Installing a CPRI Optical Cable

This section describes the procedure for installing a CPRI optical cable.

9.11 Installing an RRU Power Cable

This section describes the procedure for installing an RRU power cable.

9.12 Closing the Cover Plate of an RRU Cabling Cavity

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RRU3262 Installation Guide 9 Installing RRU Cables

This section describes the procedure for closing the cover plate of an RRU cabling cavity.

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RRU3262 Installation Guide

9.1 Cabling Requirements

Cables must be routed according to the specified cabling requirements to prevent signal interference.

NOTE

If a cable listed below is not required, skip the routing requirements of the cable.

General Cabling Requirements

Requirements for Bending Radius

l The bending radius of the 7/8'' feeder must be more than 250 mm (9.84 in.), and the bending

radius of the 5/4'' feeder must be more than 380 mm (14.96 in.).

l The bending radius of the 1/4'' jumper must be more than 35 mm (1.38 in.). The bending

radius of the super-flexible 1/2'' jumper must be more than 50 mm (1.97 in.), and the bending radius of the ordinary 1/2'' jumper must be more than 127 mm (5 in.).

l The bending radius of the power cable or PGND cable must be at least three times the

diameter of the cable.

9 Installing RRU Cables

l The bending radius of a fiber optic cable is at least 20 times the diameter of the fiber optic

cable, and the minimum bending radius of the breakout cable at each end of the fiber optic cable is 30 mm (1.18 in.).

l The bending radius of the E1/T1 cable must be at least three times the diameter of the cable.

l The bending radius of the signal cable must be at least five times the diameter of the cable.

Requirements for Cable Binding

l The same types of cable must be bound together.

l Different types of cable must be separately routed with the minimum spacing of 30 mm

(1.18 in.) and cannot be entangled.

l The cables must be bound tightly and neatly. The sheaths of the cables must not be damaged.

l Cable ties are installed in the same direction, and those at the same horizontal line must be

in a straight line.

l The excess of indoor cable ties is trimmed off, and the excess of outdoor cable ties allows

about 5 mm (0.2 in.), without remaining rough edges.

l Labels or nameplates must be attached to both ends, joints, or turns of cables after they are

installed.

Security Requirements

l Cables should be placed away from sharp objects or wall burrs. If these positions are

inevitable, protect the cables with protection pipes.

l Cables must be routed away from heat sources, or heat-insulation materials are added

between cables and heat sources.

l Sufficient slack (recommended for about 0.1 m [0.33 ft]) is provided in cables at turns or

the position close to a device, facilitating cable and device maintenance.

Indoor Cabling Requirements

l Cables are routed indoors through the feeder window.

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l Drip loops must be made outside the feeder window, and the requirements for the minimum

bending radius are met.

l When cables are routed indoors, engineers are required indoors for cooperation.

l The feeder window must be waterproofed.

Outdoor Cabling Requirements

l Cables routed outdoors must be led through a pipe when they may be damaged.

l AC power cables, transmission cables, and cables buried in the ground must be protected.

l If cables at the cabinet bottom need to be routed through a pipe along the ground, lead the

pipe into the cabinet base for about 30 mm (1.18 in.) to 50 mm (1.97 in.), not into the cabinet. Block the pipe with waterproof tape or silicon gel, and secure the pipe to the cable hole at the cabinet bottom with metal piece.

l If cables at the cabinet bottom need to be routed through a pipe along the metal cable trough,

do not lead the pipe into the cabinet base. The cable trough must be sealed and routed through the cable hole at the cabinet bottom.

l When routing RRU cables, ensure that the highest positions of the routes of all RRU cables

(except RF cables and AISG cables) must be lower than the bottom of the RRU.

l Cables are secured with cable clips.

l Cables are routed neatly along the specified cabling direction and secured with cable clips.

l The positions for cable clips are determined onsite. For example, the cable clips for the

7/8" feeder are installed at the spacing of 1.5 m (4.92 ft) to 2 m (6.56 ft) in the same direction, and the cable clips for the power cables are installed at the spacing of 1.5 m (4.92 ft) to 2 m (6.56 ft) in the same direction.

l Cable clips must be vertical with cables, and the cables in a cable clip must be parallel.

l After routing cables neatly and correctly, tighten the screws on cable clips.

Secure cables on the cable tray, as shown in Figure 9-1.

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Figure 9-1 Securing cables on the cable tray

Secure cables on the tower, as shown in Figure 9-2.

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9 Installing RRU Cables

Figure 9-2 Securing cables on the tower

Special Cabling Requirements

Cabling Requirements for Power Cables

l Power cables must be installed in the position specified in engineering design documents.

l If the length of power cables is insufficient, replace the cables rather than adding connectors

or soldering joints to lengthen the cables.

l Cables must be routed by only qualified and trained personnel before all preparations are

made.

l Cables are routed in an untangled and orderly fashion.

l If DC power cables need to be routed on the tower platform, lay out the cables on the

guardrail with the shortest distance and route the cables along the guardrail.

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9 Installing RRU Cables

l If DC power cables need to be routed close to a device on the tower, secure the cables to

the guardrail or pole with cable clips. The device cannot be far away from the position for securing the cables.

Cabling Requirements for PGND Cables

l PGND cables for the base station must be connected to the same ground bar.

l PGND cables must be buried in the ground or routed indoors. They should not be routed

overhead before they are led into the equipment room.

l The exterior 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.

l PGND cables and signal cables must be installed in an untangled and orderly fashion. A

certain distance must be reserved between them to prevent interference from each other.

l Fuses or switches must not be installed on the PGND cables.

l Other devices must not be used for electrical connections of the PGND cables.

l All the metal parts in the housing of the equipment must be reliably connected to the ground

terminal.

Cabling Requirements for E1 Cables

l E1 cables must not cross power cables, PGND cables, or RF cables when routed. 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.).

l E1 cables are routed straightly and bound neatly with cable ties.

l Sufficient slack is provided in E1 cables at turns.

l E1 cables cannot be squeezed by the cabinet door when routed through the cabinet, as

shown in Figure 9-3.

Figure 9-3 E1 cables routed through the cabinet

Cabling Requirements for Fiber Optic Cables

l Fiber optic cables must be routed by at least three qualified and trained personnel before

all preparations are made.

l Fiber optic cables are used within the temperature range of -40°C to 60°C. If the current

temperature is out of the range, make protection measures or route the cables again.

l Cables are routed in an untangled and orderly fashion.

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Huawei RRU3262 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

About This Document

Contents

1 Changes in RRU3262 Installation Guide

2 Installation Preparations

2.1 Reference Documents

2.2 Tools and Instruments

2.3 Skills and Requirements for Onsite Personnel

3 Information About the Installation

3.1 RRU Exterior

3.2 RRU Ports

3.3 RRU Indicators

3.4 Installation Scenarios

3.5 Installation Clearance Requirements of an RRU

3.5.1 Clearance for a Single RRU

3.5.2 Clearance for Three or More RRUs

3.5.3 Installation Spacing Between RRUs

4 Unpacking the Equipment

5 Installation Process

6 (Optional) Installing the Plastic Shells of the RRU

RRU3262 Installation Guide 7 Hoisting an RRU and Related Cables onto a Tower

7.1 Hoisting an RRU onto a Tower

7.2 Hoisting Fiber Optic Cables onto a Tower

7.3 Hoisting Power Cables onto a Tower

8 Installing the RRU

8.1 Mounting Kits for an RRU

8.2 Installing the RRU on a Pole

8.2.1 Installing a Single RRU

8.2.2 Installing Two RRUs

8.2.3 Installing Three or More RRUs

8.3 Installing an RRU on U-steel

8.4 Installing an RRU on Angle Steel

8.5 Installing an RRU on a Wall

8.6 Installing an RRU on an IFS06

9 Installing RRU Cables

9.1 Cabling Requirements