Huawei PRU11WIFI User Manual

DBS3900 LampSite

Installation Guide

Issue

08

Date

2016-05-30

HUAWEI TECHNOLOGIES CO., LTD.

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

i

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

DBS3900 LampSite Installation Guide

About This Document

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

ii

Overview

Product Name

Solution Version

Product Version

DBS3900 LampSite



SRAN10.1 and later versions



RAN17.1 and later versions



eRAN8.1 and later versions



eRAN TDD 8.1 and later versions

V100R010C10 and later versions

About This Document

This document describes how to install the modules and cables for the BBU, DCU3900, RHUB3908, pRRU3901, pRRU3902, pRRU3907, pRRU3911, and pRRU3911+WIFI. It also provides checklists for hardware installation.



Unless otherwise specified, BBU in this document refers to BBU3900 and BBU3910.



DCU3900 in this document refers to DCU.



RHUB3908 in this document refers to RHUB.



Unless otherwise specified, pRRU in this document refers to pRRU3901, pRRU3902, pRRU3907, pRRU3911, and pRRU3911+WIFI.

Product Version

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

Intended Audience

This document is intended for:



BTS installation personnel

DBS3900 LampSite Installation Guide

Contents

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

iii

Contents

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

1 Changes in DBS3900 LampSite Installation Guide ............................................................... 1

2 Installation Preparations ............................................................................................................. 5

2.1 Reference Documents ................................................................................................................................................... 5

2.2 Preparing Tools and Instruments................................................................................................................................... 5

2.3 Requirements for Installation Personnel ....................................................................................................................... 7

3 Unpacking and Checking ............................................................................................................ 8

4 Installing a BBU .......................................................................................................................... 10

5 Installing a DCU.......................................................................................................................... 11

6 Installing an RHUB .................................................................................................................... 12

6.1 Information About the Installation .............................................................................................................................. 12

6.1.1 Installation Scenarios ............................................................................................................................................... 13

6.1.2 Installation Clearance Requirements ....................................................................................................................... 18

6.1.3 Installation Environment .......................................................................................................................................... 21

6.2 Installation Process ..................................................................................................................................................... 23

6.3 Installing an RHUB .................................................................................................................................................... 24

6.3.1 Installing an RHUB in a 19-Inch Cabinet or Rack .................................................................................................. 24

6.3.2 Installing an RHUB in a 19-Inch Shelf .................................................................................................................... 27

6.3.3 Installing an RHUB on a Wall ................................................................................................................................. 30

6.4 Installing RHUB Cables ............................................................................................................................................. 34

6.4.1 Requirements for Cable Layout ............................................................................................................................... 34

6.4.2 Cable List ................................................................................................................................................................. 37

6.4.3 Cable Connections ................................................................................................................................................... 43

6.4.4 Cable Installation Process ........................................................................................................................................ 44

6.4.5 Installing PGND Cable ............................................................................................................................................ 45

6.4.6 Installing Ethernet Cable ......................................................................................................................................... 47

6.4.7 Installing CRPI Optical Cables ................................................................................................................................ 50

6.4.8 Installing Alarm Cable (Optional) ........................................................................................................................... 53

6.4.9 Installing Power Cable ............................................................................................................................................. 53

6.5 Checking the RHUB Hardware Installation................................................................................................................ 55

DBS3900 LampSite Installation Guide

Contents

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

iv

6.6 Power-on Check on an RHUB .................................................................................................................................... 56

7 Installing a pRRU3901................................................................................................................ 59

7.1 Information About the Installation .............................................................................................................................. 60

7.1.1 Product Family......................................................................................................................................................... 60

7.1.2 Installation Scenario ................................................................................................................................................ 60

7.1.3 Space Requirements ................................................................................................................................................. 64

7.1.4 Installation Environment Requirements................................................................................................................... 65

7.2 Obtaining the MAC Address (Optional) ..................................................................................................................... 66

7.3 Installation Process ..................................................................................................................................................... 67

7.4 Installing a pRRU3901 ............................................................................................................................................... 68

7.4.1 pRRU3901 Mounting Kits ....................................................................................................................................... 69

7.4.2 Installing a pRRU3901 on a Wall ............................................................................................................................ 70

7.4.3 Installing a pRRU3901 on a Ceiling ........................................................................................................................ 74

7.4.4 Installing a pRRU3901 on a Pole ............................................................................................................................. 77

7.4.5 Installing a pRRU3901 on a Plate ............................................................................................................................ 80

7.4.6 Installing a pRRU3901 on a Keel ............................................................................................................................ 83

7.4.7 Installing the Cabinet ............................................................................................................................................... 86

7.5 Installing pRRU3901 Cables ...................................................................................................................................... 93

7.5.1 Requirements for Cable Layout ............................................................................................................................... 93

7.5.2 pRRU3901 Cable List .............................................................................................................................................. 94

7.5.3 Cable Connections (Indoor) ..................................................................................................................................... 95

7.5.4 Cable Connections (Outdoor) .................................................................................................................................. 98

7.5.5 Cable Connections (LTE TDD) ............................................................................................................................... 99

7.5.6 pRRU3901 cable installation process .................................................................................................................... 101

7.5.7 Installing an Ethernet Cable ................................................................................................................................... 101

7.5.8 Installing an RF jumpers (Optional) ...................................................................................................................... 104

7.6 Checking the pRRU3901 Hardware Installation....................................................................................................... 106

7.7 Powering on the pRRU3901 ..................................................................................................................................... 107

8 Installing a pRRU3902 or pRRU3911 or pRRU3911+WIFI................................................ 109

8.1 Information About the Installation ............................................................................................................................ 110

8.1.1 Product Family....................................................................................................................................................... 110

8.1.2 Installation Scenario .............................................................................................................................................. 112

8.1.3 Space Requirements ............................................................................................................................................... 116

8.1.4 Installation Environment Requirements................................................................................................................. 117

8.2 Installation Process ................................................................................................................................................... 118

8.3 Installing a pRRU ..................................................................................................................................................... 119

8.3.1 Mounting Kits ........................................................................................................................................................ 119

8.3.2 Installing a pRRU on a Wall .................................................................................................................................. 120

8.3.3 Installing a pRRU on a Ceiling .............................................................................................................................. 124

8.3.4 Installing a pRRU on a Pole .................................................................................................................................. 127

8.3.5 Installing a pRRU on a Plate .................................................................................................................................. 129

DBS3900 LampSite Installation Guide

Contents

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

v

8.3.6 Installing a pRRUon a Keel ................................................................................................................................... 136

8.3.7 Installing a pRRU on Steel Hangers ...................................................................................................................... 140

8.3.8 Installing the Cabinet ............................................................................................................................................. 144

8.4 Installing pRRU Cables ............................................................................................................................................ 148

8.4.1 Requirements for Cable Layout ............................................................................................................................. 148

8.4.2 Cable List ............................................................................................................................................................... 149

8.4.3 Cable Connections ................................................................................................................................................. 150

8.4.4 Cable Installation Process ...................................................................................................................................... 154

8.4.5 Installing a pRRU3902 Ethernet Cable .................................................................................................................. 154

8.4.6 Installing a pRRU3911/pRRU3911+WIFI Ethernet Cable .................................................................................... 159

8.4.7 Installing a pRRU3902 RF Jumper (Optional) ...................................................................................................... 163

8.4.8 Installing a pRRU3911 RF Jumper (Optional) ...................................................................................................... 165

8.5 (Optional) Installing a Combiner .............................................................................................................................. 167

8.6 Checking the pRRU Hardware Installation .............................................................................................................. 169

8.7 Powering on the pRRU ............................................................................................................................................. 170

9 Installing a pRRU3907 or pRRU3916 .................................................................................... 172

9.1 Information About the Installation ............................................................................................................................ 172

9.1.1 pRRU Product Family ........................................................................................................................................... 173

9.1.2 Constraints and Limitations ................................................................................................................................... 173

9.1.3 Installation Clearance and Space Requirements .................................................................................................... 176

9.1.4 Installation Environment Requirements................................................................................................................. 179

9.2 Installation Process ................................................................................................................................................... 180

9.3 Installing a pRRU ..................................................................................................................................................... 180

9.3.1 pRRU Mounting Kits ............................................................................................................................................. 180

9.3.2 Installing a pRRU on a Wall .................................................................................................................................. 182

9.3.3 Installing a pRRU on a Pole .................................................................................................................................. 185

9.4 Installing pRRU Cables ............................................................................................................................................ 187

9.4.1 Cabling Requirements............................................................................................................................................ 187

9.4.2 pRRU Cable List .................................................................................................................................................... 189

9.4.3 pRRU3907 Cable Connections .............................................................................................................................. 190

9.4.4 pRRU3916 Cable Connections .............................................................................................................................. 190

9.4.5 pRRU cable installation process ............................................................................................................................ 191

9.4.6 Installing a PGND Cable ....................................................................................................................................... 192

9.4.7 Installing a pRRU3907 RF Jumper ........................................................................................................................ 193

9.4.8 Installing a pRRU3916 RF Jumper ........................................................................................................................ 197

9.4.9 Opening the Cover Plate of a pRRU Cabling Cavity ............................................................................................. 199

9.4.10 Installing an Ethernet Cable ................................................................................................................................. 200

9.4.11 Closing the Cover Plate of a pRRU Cabling Cavity ............................................................................................ 202

9.5 Checking the pRRU Hardware Installation .............................................................................................................. 204

9.6 Powering on the pRRU ............................................................................................................................................. 205

10 (Optional) Installing the Extender-PoE90 .......................................................................... 207

DBS3900 LampSite Installation Guide

Contents

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

vi

11 (Optional) Installing the EXD3902 and Cables ................................................................. 211

11.1 Installation Scenario................................................................................................................................................ 212

11.2 Installation Clearance and Space Requirements ..................................................................................................... 215

11.3 Installation Process ................................................................................................................................................. 218

11.4 Installing an EXD3902 ........................................................................................................................................... 218

11.4.1 EXD3902 Mounting Kits ..................................................................................................................................... 218

11.4.2 Installing an EXD3902 on a Wall ........................................................................................................................ 220

11.4.3 Installing an EXD3902 on a Pole ......................................................................................................................... 223

11.5 Installing EXD3902 Cables .................................................................................................................................... 225

11.5.1 Cabling Requirements .......................................................................................................................................... 225

11.5.2 EXD3902 Cable Connections .............................................................................................................................. 226

11.5.3 Installling a PGND cable ..................................................................................................................................... 227

11.5.4 Opening the Cover Plate of an EXD3902 Cabling Cavity ................................................................................... 229

11.5.5 Installing an Ethernet Cable ................................................................................................................................. 230

11.5.6 Closing the Cover Plate of an EXD3902 Cabling Cavity .................................................................................... 231

11.6 Checking the EXD3902 Hardware Installation ....................................................................................................... 232

11.7 Powering on the EXD3902 ..................................................................................................................................... 233

12 (Optional) Installing the PoE Surge Protector and Cables ............................................. 235

13 (Optional) Installing the RF Surge Protector and Cables ............................................... 237

14 (Optional) Installing the Cabinet and Cabinet Cables .................................................... 239

14.1 Installation Clearance Requirements ...................................................................................................................... 239

14.2 Mounting Bracket and Attachment Plate ................................................................................................................ 240

14.2.1 Mounting Bracket ................................................................................................................................................ 240

14.2.2 Attachment Plate .................................................................................................................................................. 242

14.3 Installing a Cabinet ................................................................................................................................................. 242

14.3.1 Installing the Cabinet on a Wall ........................................................................................................................... 242

14.3.2 Installing the Cabinet on a Pole ........................................................................................................................... 247

14.3.3 Installing the Cabinet on U-steel .......................................................................................................................... 250

14.3.4 Installing the Cabinet on Angle Steel ................................................................................................................... 254

14.3.5 Installing the Cabinet on Metal Grid.................................................................................................................... 257

14.3.6 Installing the Cabinet on the Floor ....................................................................................................................... 262

14.4 Installing Cabinet Cables ........................................................................................................................................ 266

14.4.1 Cable Connections ............................................................................................................................................... 266

14.4.2 Installing a PGND Cable for the Cabinet............................................................................................................. 269

15 Appendix .................................................................................................................................. 271

15.1 MAC Collection Template ...................................................................................................................................... 271

15.2 Assembling a Shielded RJ45 Connector and an Ethernet Cable ............................................................................. 272

15.3 DBS3900 LampSite Engineering Label .................................................................................................................. 276

15.4 Attaching an L-Shaped Label ................................................................................................................................. 278

15.5 Attaching a Sign Plate Label ................................................................................................................................... 280

DBS3900 LampSite Installation Guide

1 Changes in DBS3900 LampSite Installation Guide

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

1

08 (2016-05-30)

Content

Change Description

8.4.5 Installing a pRRU3902 Ethernet Cable

Renamed the outdoor Extender to Extender-PoE90.

8.4.6 Installing a pRRU3911/pRRU3911+WIFI Ethernet Cable

1 Changes in DBS3900 LampSite

Installation Guide

This chapter describes the changes in the DBS3900 LampSite Installation Guide.

This is the eighth commercial release.

07 (2015-12-30)

Compared with 07 (2015-12-30), this issue incorporates the following new topics:



8.3.4 Installing a pRRU on a Pole



10 (Optional) Installing the Extender-PoE90



11 (Optional) Installing the EXD3902 and Cables

Compared with 07 (2015-12-30), this issue incorporates the following changes:

Compared with 07 (2015-12-30), no information is deleted.

This is the seventh commercial release.

Compared with 06 (2015-10-30), this issue incorporates the following new topics:



8.4.6 Installing a pRRU3911/pRRU3911+WIFI Ethernet Cable



12 (Optional) Installing the PoE Surge Protector and Cables



13 (Optional) Installing the RF Surge Protector and Cables



14 (Optional) Installing the Cabinet and Cabinet Cables

Compared with 06 (2015-10-30), this issue incorporates the following changes:

DBS3900 LampSite Installation Guide

1 Changes in DBS3900 LampSite Installation Guide

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

2

Content

Change Description

Entire document

Added the information about pRRU3911 and the cabinet used in the outside scenario.

06 (2015-10-30)

Content

Change Description

6.4.7 Installing CRPI Optical Cables

Added the descriptions about the CPRI optical fiber connection in sharing BBUs with Macro Networks scenario.

Content

Change Description

Entire document

Added the RHUB that has no electrical transmission port.

05 (2015-08-30)

Compared with 06 (2015-10-30), no information is deleted.

This is the sixth commercial release.

Compared with 05 (2015-08-30), this issue includes the following new topics:



9 Installing a pRRU3907 or pRRU3916

Compared with 05 (2015-08-30), no information is changed.

Compared with 05 (2015-08-30), no information is deleted.

This is the fifth commercial release.

04 (2015-07-30)

Compared with 04 (2015-07-30), no information is added.

Compared with 04 (2015-07-30), this issue incorporates the following changes

Compared with 04 (2015-07-30), no information is deleted.

This is the fourth commercial release.

Compared with 03 (2015-06-30), no information is added.

Compared with 03 (2015-06-30), this issue incorporates the following changes.

Compared with 03 (2015-06-30), no information is deleted.

DBS3900 LampSite Installation Guide

1 Changes in DBS3900 LampSite Installation Guide

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

3

03 (2015-06-30)

Content

Change Description

Entire document

Added the descriptions about the DCU.

Content

Change Description

6.4.9 Installing Power Cable

Modified the RHUB configurations of upper-level circuit breakers.

8.1.2 Installation Scenario

Deleted the minimum space requirements of the pRRU3901.

8.1.3 Space Requirements

Deleted the minimum space requirements of the pRRU3902.

8.3.2 Installing a pRRU on a Wall

Added the step about locking the protection screw of pRRU3902.

8.3.3 Installing a pRRU on a Ceiling

8.3.5 Installing a pRRU on a Plate

8.3.6 Installing a pRRUon a Keel

Content

Change Description

02 (2015-05-08)

This is the third commercial release.

Compared with 02 (2015-05-08), this issue includes the following new topics:



5 Installing a DCU

Compared with 02 (2015-05-08), this issue incorporates the following changes:

Compared with 02 (2015-05-08), no information is deleted.

This is the second commercial release.

Compared with 01 (2015-03-23), no information is added.

Compared with 01 (2015-03-23), this issue incorporates the following changes:

Compared with 01 (2015-03-23), no information is deleted.

01 (2015-03-23)

This is the first commercial release.

Compared with draft B (2015-02-10), this issue includes the following new topics:



8 Installing a pRRU3902 or pRRU3911

Compared with draft B (2015-02-10), this issue incorporates the following changes:

DBS3900 LampSite Installation Guide

1 Changes in DBS3900 LampSite Installation Guide

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

4

Content

Change Description

Entire document

Added the descriptions about the pRRU3902.

Content

Change Description

6.1.1 Installation Scenarios

Added the descriptions about the RHUB panel must not face upwards.

Content

Change Description

Entire document

The base station in the LampSite solution is renamed DBS3900 LampSite.

Compared with draft B (2015-02-10), no information is deleted.

Draft B (2015-02-10)

This is a draft release.

Compared with draft A (2015-01-15), no information is added.

Compared with draft A (2015-01-15), this issue incorporates the following change:

Compared with draft A (2015-01-15), no information is deleted.

Draft A (2015-01-15)

This is a draft release.

Compared with Issue 08 (2014-12-30) of V100R009C00, no information is added.

Compared with Issue 08 (2014-12-30) of V100R009C00, this issue incorporates the following change:

Compared with Issue 08 (2014-12-30) of V100R009C00, no information is deleted.

DBS3900 LampSite Installation Guide

2 Installation Preparations

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

5

About This Chapter

Marker

Level

Torque screwdriver

(M4 to M6)

Diagonal pliers

Power cable crimping tool

RJ11 crimping tool

Cable cutter

Before starting the installation, you must obtain the required reference documents, tools, and instruments, and familiarize yourself with the skills required.

2.1 Reference Documents

Before the installation, you must read the following documents:

2 Installation Preparations

2.2 Preparing Tools and Instruments

This section describes the tools and instruments that must be prepared before the installation.

2.3 Requirements for Installation Personnel

This section describes requirements for installation engineers. They must be qualified and trained, and familiar with correct operation methods and safety precautions before performing any operations.

2.1 Reference Documents

Before the installation, you must read the following documents:



DBS3900 LampSite Hardware Description



Installation Reference

2.2 Preparing Tools and Instruments

This section describes the tools and instruments that must be prepared before the installation.

DBS3900 LampSite Installation Guide

2 Installation Preparations

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

6

Rubber mallet

Crown saw (Ø60)

Wire stripper

Hammer drill (Ø6, Ø8 and Ø12)

Torque wrench (Ø10 mm)

Protective gloves Guarded blade utility knife

ESD gloves

Long measuring tape

Multimeter

Network cable tester

Vacuum cleaner

Ladder

Torque wrench for SMA connector

Socket wrench (M6)

Hole screwdriver (T20)

–

-

DBS3900 LampSite Installation Guide

2 Installation Preparations

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

7

2.3 Requirements for Installation Personnel

This section describes requirements for installation engineers. They must be qualified and trained, and familiar with correct operation methods and safety precautions before performing any operations.

Before the installation, pay attention to the following items:



Technical engineers must take Huawei training and be familiar with proper installation and operation methods.



The number of installation personnel depends on the engineering schedule and installation environment. Generally, three to five persons are required. Generally, only three to five onsite personnel are necessary.

DBS3900 LampSite Installation Guide

3 Unpacking and Checking

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

8

Context

If...

Then...

The total number of the components is consistent with that recorded in the packing lists on all packing boxes

Go to Step 2.

The total number of the components is inconsistent with that recorded in the packing lists on all packing boxes

Report the problems and causes to the local Huawei office.

If...

Then...

The exterior of each packing box is intact

Go to Step 3.

3 Unpacking and Checking

This section describes how to unpack and check the delivered equipment to ensure that the materials are complete and intact.

The following lists important notes when you are transporting, lifting, or installing the equipment or components:



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



Wear clean gloves and do not touch them with bare hands, sweat-soaked gloves, or dirty gloves.

Procedure

Step 1 Count the total number of the shipments.

Step 2 Check the exterior of each packing box.

You must power on the RHUB or pRRU within 7 days after it is unpacked.

DBS3900 LampSite Installation Guide

3 Unpacking and Checking

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

9

If...

Then...

It is damaged or soaked

Report the problems and causes to the local Huawei office.

The collision label is red

Do not unpack the packing box and claim for compensation from the transportation company.

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

If...

Then...

The type and number are consistent with the packing list on each packing list

Sign the Packing List with the operator.

There is any shortage, wrong delivery, or damaged equipment

Report the problems and causes to the local Huawei office.

Perform the following operations to protect the components from any damages and help find out the cause of any damage in future: 1. Store the unpacked equipment and packing materials indoors. 2. Take photos of the storeroom, rusted or eroded equipment, packing box, and packing materials. 3. File the photos.

----End

DBS3900 LampSite Installation Guide

4 Installing a BBU

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

10

4 Installing a BBU

This chapter describes the process of installing a BBU.

For details about the installation of the BBU, see DBS3900 Installation Guide.

DBS3900 LampSite Installation Guide

5 Installing a DCU

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

11

5 Installing a DCU

This chapter describes the process of installing a DCU.

For details about the installation of the DCU, see DCU3900 Installation Guide.

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

12

About This Chapter

This chapter describes the process of installing an RHUB. RHUBs are classified into those with electrical transmission ports and those with no electrical transmission ports. Unless otherwise specified, this document uses the RHUBs with no electrical transmission ports as an example.

6.1 Information About the Installation

6 Installing an RHUB

This section describes the information to be learnt before RHUB installation, including the RHUB installation scenarios, clearance, and installation environment.

6.2 Installation Process

The RHUB installation involves installing an RHUB module, installing RHUB cables, checking the RHUB hardware installation, and powering on the RHUB.

6.3 Installing an RHUB

An RHUB can be installed in a cabinet, rack, shelf, or on a wall.

6.4 Installing RHUB Cables

This section describes how to install cables for an RHUB.

6.5 Checking the RHUB Hardware Installation

After an RHUB is installed, check the installation of hardware including the devices and related cables.

6.6 Power-on Check on an RHUB

This section describes the power-on check on the RHUB after the RHUB hardware is installed and checked.

6.1 Information About the Installation

This section describes the information to be learnt before RHUB installation, including the RHUB installation scenarios, clearance, and installation environment.

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

13

6.1.1 Installation Scenarios

An RHUB can be installed in a 19-inch cabinet, rack, shelf, or on a wall.

To prevent the RHUB from water drops, the RHUB panel must not face upwards (shown in Figure 6-1) in any installation scenarios.

Figure 6-1 Improper installation mode

The RHUB mounting ears are installed in standard mode or reverse mode. The reverse mode is used by default. The two installation modes are defined as follows:



In standard mode, the front of the mounting ear is aligned with the RHUB panel, as shown in Figure 6-2.

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

14

Figure 6-2 Installing mounting ears in standard mode



In reverse mode, the front of the mounting ear is 31 mm away from the RHUB panel, as shown in Figure 6-3.

Figure 6-3 Installing mounting ears in reverse mode

Installing an RHUB in a 19-Inch Cabinet or Rack

Installing an RHUB in a 19-inch cabinet or rack: Secure the mounting ear to the mounting bracket by using M6 screws.



If there are no other modules installed in the 1 U space near the RHUB, install the RHUB directly. Otherwise, remove the modules before installing the RHUB.



Before installation, you need to check the installation mode supported by the rack and adjust the position of the mounting ear.

Figure 6-4 and Figure 6-5 show RHUBs installed in a cabinet or rack, respectively.

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

15

Figure 6-4 Installing an RHUB in a 19-inch cabinet or rack in standard mode

Figure 6-5 Installing an RHUB in a 19-inch cabinet in reverse mode

Installing an RHUB in a 19-Inch Shelf

When an RHUB is installed in a 19-inch shelf, the shelf must be installed on a wall. One shelf can house multiple RHUBs with 1 U space between two RHUBs.

Figure 6-6 and Figure 6-7 show RHUBs installed in a 19-inch shelf.

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

16

Figure 6-6 RHUB installed in a 19-inch shelf in standard mode

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

17

Figure 6-7 RHUB installed in a 19-inch shelf in reverse mode

Installing an RHUB on a Wall

An RHUB can be installed on a wall.

The wall on which an RHUB is installed must meet the following requirements:



When a single RHUB is installed, the wall must have a capacity of bearing at least four times the weight of the RHUB.



Expansion bolts must be tightened to 10 N·m (88.507 bf·in.) to ensure the bolts work properly and the wall remains intact without cracks in it.

Figure 6-8 shows an RHUB installed on a wall.

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

18

Figure 6-8 RHUB installed on a wall

6.1.2 Installation Clearance Requirements

When an RHUB is installed in a 19-inch cabinet, rack, shelf, or on a wall, a minimum clearance is required for easy cabling and operation and maintenance. A recommended installation clearance is provided based on experience.



Do not install or place inflammable materials above or under an RHUB.



A clearance of 350 mm must be reserved in front of the air intake vent of the fan of the power supply unit (PSU) for maintenance.

Figure 6-9 shows the installation clearance for the RHUB installed in a 19-inch cabinet, rack, or shelf.

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

19

Figure 6-9 Installation clearance for an RHUB installed in a 19-inch cabinet, rack, or shelf

Figure 6-10 and Figure 6-11 shows the recommended and minimum installation clearance respectively when the RHUB is installed on a wall.

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

20

Figure 6-10 Recommended installation clearance for a wall-mounted RHUB (unit: mm)

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

21

Figure 6-11 Minimum installation clearance for a wall-mounted RHUB (unit: mm)

Specifi cations

Installation Scenario

RHUB Quantity

Condition

Remarks

6.1.3 Installation Environment

The installation environment of an RHUB involves the running environment specifications for the RHUB and other specifications.

RHUB Running Environment Specifications

Table 6-1 shows the environment specifications for the RHUB installed indoors.



The temperature and humidity of the installation position must ensure normal operation. A cool and ventilated place is recommended.



The heat dissipation holes on the RHUB cannot be blocked.

Table 6-1 RHUB environment specifications

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

22

Specifi cations

Installation Scenario

RHUB Quantity

Condition

Remarks

Operati ng tempera ture

Installed on a wall or in a 19-inch rack.

N/A

-5°C to +50°C

N/A

Installed in a shelf.

1

-5°C to +45°C

N/A

2

-5°C to +43°C

N/A

3

-5°C to +40°C

N/A

Relativ e humidit y

Installed in all scenarios.

N/A

5% RH to 95% RH

N/A

Altitude

N/A

-60 m to +1800 m

Works properly.

1800 m to 4000 m

Above the 1800 m altitude, the maximum operating temperature decreases by 1°C each time the altitude increases by 220 m.

Installing more than one RHUB, 1 U space is required between two RHUBs.

Other Running Environment Specifications



The RHUB cannot be installed at an air outlet of the heat dissipation box of an air conditioner or other heat-generating appliances.



The RHUB cannot be installed near a strong heat source.



The RHUB cannot be installed in a position with water dripping, such as outdoor equipment of air conditioners, pipe, and leaking or dripping roofs.



The installation position must be far from rains. If the RHUB is installed on a wall, there must be no window on either side of the wall.



The installation position must be far away from high voltage, highly corrosive devices, flammable or explosive substances, and electromagnetic interference such as power stations, high-voltage substations, and wired TV towers.



The RHUB must be installed in a dry, ventilating, and dust-proof place.



If the RHUB is installed in parking areas or basements, the installation position must be well-ventilated.

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

23

Requirements for the Upper-level Circuit Breaker

Power Supply

Upper-level AC Circuit Breaker (For a single RHUB)

Cross-Sectional Area of the Input Power Cable

220 V AC single-phase

≥ 6 A

1.5 mm2

110 V AC dual-live-wire

110 V AC single-phase

≥ 12 A

Type C upper-level AC circuit breakers or slow-blow fuses must be used for power cables. The maximum current must not exceed 16 A. Table 6-2 describes the recommended specifications.

Table 6-2 Circuit breaker specifications for power cables

6.2 Installation Process

The RHUB installation involves installing an RHUB module, installing RHUB cables, checking the RHUB hardware installation, and powering on the RHUB.

Figure 6-12 shows the RHUB installation process.

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

24

Figure 6-12 RHUB installation process

6.3 Installing an RHUB

An RHUB can be installed in a cabinet, rack, shelf, or on a wall.

6.3.1 Installing an RHUB in a 19-Inch Cabinet or Rack

This section describes how to install an RHUB in a 19-inch cabinet.

Procedure



The following describes how to install an RHUB with mounting ears in reverse mode:

If necessary, request one more person for assistance.

a. With one hand holding it, align the mounting holes with the installation holes,

slowly push the RHUB into the required position in the cabinet, as shown in Figure 6-13.

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

25

Figure 6-13 Pushing an RHUB into a cabinet

b. Use a torque screwdriver or Phillips screwdriver to tighten the four M6×16 screws

with a torque of 2 N•m, as shown in Figure 6-14.

Figure 6-14 Tightening screws



The following describes how to install an RHUB with mounting ears aligned with the RHUB panel:

If necessary, request one more person for assistance.

a. Remove the mounting ears on both sides of the RHUB by removing the four M4×8

screws, as shown in Figure 6-15.

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

26

Figure 6-15 Removing mounting ears and screws

b. Use a torque screwdriver or Phillips screwdriver to tighten the four M4×8 screws

with a torque of 1.4 N•m to install the removed mounting ears again, as shown in

Figure 6-16. The mounting ears must be aligned with the RHUB panel.

Figure 6-16 Installing mounting ears in standard mode

c. With one hand holding it, align the mounting holes with the installation holes,

slowly push the RHUB into the required position in the cabinet, as shown in Figure 6-17.

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

27

Figure 6-17 Pushing an RHUB into a cabinet

d. Use a torque screwdriver or Phillips screwdriver to tighten the four M6×16 screws

with a torque of 2 N•m, as shown in Figure 6-18.

Figure 6-18 Tightening screws

----End

6.3.2 Installing an RHUB in a 19-Inch Shelf

If a shelf houses more than one RHUB, 1 U space is required between two RHUBs. The PSU must be installed at the bottom of the cabinet.

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

28

Procedure



The following describes how to install an RHUB with mounting ears installed in reverse mode:

If necessary, request one more person for assistance.

a. With one hand holding it, align the mounting holes with the installation holes,

slowly push the RHUB into the required position in the shelf.

b. Use a torque screwdriver or Phillips screwdriver to tighten the four M6×16 screws

with a torque of 2 N•m, as shown in Figure 6-19.

Figure 6-19 Tightening screws



The following describes how to install an RHUB with mounting ears installed in standard mode:

If necessary, request one more person for assistance.

a. Remove the mounting ears on both sides of the RHUB by removing the four M4×8

screws, as shown in Figure 6-20.

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

29

Figure 6-20 Removing mounting ears and screws

b. Use a torque screwdriver or Phillips screwdriver to tighten the four M4×8 screws

with a torque of 1.4 N•m to install the removed mounting ears again, as shown in

Figure 6-21. The mounting ears must be aligned with the RHUB panel.

Figure 6-21 Installing mounting ears in standard mode

c. With one hand holding it, align the mounting holes with the installation holes,

slowly push the RHUB into the required position in the cabinet, as shown in .

d. Use a torque screwdriver or Phillips screwdriver to tighten the four M6×16 screws

with a torque of 2 N•m, as shown in Figure 6-22.

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

30

Figure 6-22 Tightening screws

----End

6.3.3 Installing an RHUB on a Wall

An RHUB can be installed on a wall.

Context

Suitable for mounting on concrete or other non-combustible surface only.

Procedure

Step 1 The mounting ears are installed in reverse mode by default. Before installing an RHUB on a

wall, modify the installation mode of the mounting ears on the RHUB.

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

31



Use a torque screwdriver or Phillips screwdriver to remove the mounting ears on both sides of the RHUB by removing the four M4×8 screws, as shown in Figure 6-23.

Figure 6-23 Removing screws and mounting ears



Rotate the mounting ears 90 degrees clockwise, and use a torque screwdriver or Phillips screwdriver to secure the mounting ear with a torque of 1.4 N•m, as shown in Figure 6-24.

Figure 6-24 Installing mounting ears and screws

Step 2 Determine the position on the wall for installing the RHUB based on the requirements in the

engineering blueprint and 6.1.2 Installation Clearance Requirements. Place the RHUB to the

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

32

position to be installed against the wall, and then mark the four anchor points where the

(1) Level

(2) RHUB

(3) Wall

mounting ear screws are fastened using a marker, as shown in Figure 6-25.

Figure 6-25 Anchor points for installing an RHUB on a wall

To prevent inhalation or eye contact with dust, take adequate preventive measures when drilling holes.

Step 3 Drill holes at the anchor point and install expansion bolts, as shown in Figure 6-26.

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

33

Figure 6-26 Drilling holes and installing expansion bolts

(1) M6×60 expansion bolt

(2) Nut

(3) Spring washer

(4) Flat washer

(5) Extension tub

1. Use a hammer drill with bit 8 to drill holes with a diameter of 8 mm and a depth of 45

mm to 50 mm at the marked anchor points. All the holes have the same depth.

2. Use a vacuum cleaner to clear the dust inside and around each hole. If the distance

between two holes is incorrect, mark and drill holes again.

3. Partially tighten an expansion bolt and place it vertically into each hole.

4. Use a rubber mallet to hit the expansion bolt until the entire expansion sleeve is in the

hole.

5. Remove the M6×60 bolt, nut, spring washer, and flat washer from each expansion bolt in

sequence.

After removing an expansion bolt, ensure that the top of the expansion sleeve is level with the wall. If it is not level, the RHUB cannot be installed on the concrete floor evenly and securely.

Step 4 Align the mounting holes with the four M6×60 expansion bolts. Install spring washer 6 and

flat washer 6 in sequence on each M6×60 expansion bolt, insert the bolts to each expansion tub, and then use a torque wrench or socket wrench to tighten the four M6×60 bolts with a torque of 5 N•m to secure the RHUB to the wall, as shown in Figure 6-27.

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

34

Figure 6-27 Installing an RHUB on a wall

As shown in the preceding figure, when the RHUB is placed against the wall, ensure that the RHUB panel is vertical to the ground and the PSU is on the lower part of the RHUB panel.

----End

6.4 Installing RHUB Cables

This section describes how to install cables for an RHUB.

6.4.1 Requirements for Cable Layout

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

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

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

35

General Requirements for Cable Layout

National Standards



Code for Engineering Design of Generic Cabling System for Building and Campus (GB 50311-2007)



Code for Engineering Acceptance of Generic Cabling System for Building and Campus (GB50312-2007).



Security Protection Engineering Technology Specifications (GB 50348-2004)



Code for Construction and Acceptance of the Electronic Information System Room (GB 50462-2008)



Code for Quality Acceptance of the Intelligent Building Engineering (GB 50339-2003)



Code for Quality Acceptance of Electric Engineering Construction in Building (GB 50303-2002)



Technical Specification for Construction and Acceptance of Telecommunication Conduit Engineering (GB 50374-2006)

International Standards



Generic Cabling for Customer Premises (ISO/IEC 11801)



Commercial Building Telecommunications Cabling Standard (EIA/TIA 568)



Commercial Building Standard for Telecommunication Pathways and Spaces (EIA/TIA

569)



Administration Standard for Commercial Telecommunications Infrastructure (EIA/TIA

606)



Grounding and Bonding Requirements for Telecommunications in Commercial Buildings (EIA/TIA 607)



Generic Cabling Systems for Information Technology (EN 50173)



Cabling Installation for Information Technology (EN 50174)

Bending radius



The bending radius of a power cable or a protection ground (PGND) cable is at least five times the diameter of the cable.



The bending radius of an optical cable is at least 20 times the diameter of the optical cable, and the minimum bending radius of the branch at each end of the optical cable is 30 mm.



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

Cable Binding



Cables of the same type are bound together.



Different types of cables must be separately routed with a minimum spacing of 30 mm and cannot be entangled or crossed.



The cables are bound tightly and neatly and the cable sheath is intact.



The cable ties face the same direction and all cable ties bound at similar positions must be in a straight line.



The extra length of each indoor cable tie must be cut off. A slack of 5 mm is reserved for each outdoor cable tie. All cut surfaces have no sharp edges.

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

36



Labels or nameplates are attached to both ends, joints, or turns of cables after they are installed.

Safety



The steel pipe or fire-resistant rigid polyvinyl chloride pipe should be used for the cable duct or for routing cables. The cross-sectional usage of the cable duct should be 30% to 50% and that of the pipe for routing cables should be 25% to 30%.



Cables are placed away from sharp objects or wall burrs. If these positions are inevitable, protection pipes are required for the cables.



Cables are routed away from heat sources, or heat-insulation materials are added between cables and heat sources.



Cables are routed away the cooling vents of the RHUB.



A clearance is reserved at turns of a cable or the position close to a device, facilitating cable and device maintenance. The recommended clearance is about 0.1 m.

Requirements for Special Cables

Ethernet Cable



A maximum of 100 Ethernet cables can be bundled if no PVC pipes are used. If pipes are used, a maximum of 24 Ethernet cables can be led through a pipe. In this case, ensure that 1/3 space inside the pipes must be vacant.



The point at which an Ethernet cable is bundled must be spaced 400 mm or less from the Ethernet port on an RHUB.



For the RHUB used in the elevator engine room on the rooftop, generator set for the subway engine, and equipment room with central air conditioning, Ethernet cables must be led through metallic conduits that are reliably grounded at both ends.

Power cable



Positions for routing power cables meet requirements of the engineering design.



Cables are routed only by qualified and trained personnel before all preparations are made.



Cables are routed in an untangled and orderly fashion.

PGND cable



PGND cables are buried in the ground or routed indoors. They cannot be routed overhead before they are routed into the equipment room.



Outer conductors of coaxial cables and both ends of the shield layers on shielded cables are in proper electrical contact with the metal surface of the equipment to which they are connected.



PGND cables and signal cables are installed in an untangled and orderly fashion. A certain distance is reserved between them to prevent interference from each other.



Fuses or switches are not allowed on PGND cables.



Other devices cannot be used for electrical connections of PGND cables.



All the metal parts in the equipment are reliably connected to the ground terminal.

Optical cable



Cables are routed in an untangled and orderly fashion.



Optical fibers cannot be bound at turns.

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

37



Cable

One End

The Other End

Connector

Installation Position

Connector

Installation Position

BBU PGND Cable

OT terminal (M4, 6 mm2 or

0.009 in.2)

Ground terminal on the BBU

OT terminal (M8, 6 mm2 or

0.009 in.2)

External ground bar

BBU Power Cable

3V3 connector

-48V port on UPEU in BBU

Depending on the power equipment

E1/T1 Cable

DB26 male connector

E1/T1 port on the UMPT, GTMU, UELP, WMPT, or UTRP in the BBU

Depending on site requirements

External transmission equipment

E1/T1 Surge

DB26 male

E1/T1 port on

DB25

INSIDE port



6.4.2 Cable List

The DBS3900 LampSite cable list includes BBU cable list, DCU cable list, RHUB cable list, pRRU cable list.

Optical fibers cannot be stretched with too much force or stepped on, and they are far away from sharp objects. Heavy objects cannot be placed on optical cables.

When optical cables are routed, the extra length of the cables is coiled around special devices, such as a fiber coiler.

Even strength is applied when optical cables are coiled and optical cables cannot be bent in a forcible manner.

Vacant optical connectors are covered with dust-proof caps.

Fiber optic cables cannot be squeezed by the cabinet door when routed through the cabinet.

If optical cables need to be routed on the tower platform, the optical cables are routed along the inner side of the guard rail and the distance between the guard rail and the cable is the shortest one.

If optical cables need to be routed close to a device on the tower, the optical cables are secured to the guard rail or pole with cable clips and the device cannot be far away from the position for securing the optical cables.

If the optical cable close to a device on the tower is too long, the optical cables are wrapped and secured to the tower.

BBU Cable List

The following table lists BBU3900 cables and BBU3910 cables.

Table 6-3 BBU3900&BBU3910 cable list

Except the CPRI fiber optic cable, for details about the cables exterior and related description in Table 6-3 and Table 6-4, see 3900 Series Base Station Cables.

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

38

Cable

One End

The Other End

Connector

Installation Position

Connector

Installation Position

Protection Transfer Cable

connector

the UMPT, GTMU, UELP, WMPT, or UTRP in the BBU

connector

on the UELP in the SLPU

FE/GE Ethernet Cable

RJ45 connector



FE0 port near OUTSIDE on the UFLP in the BBU



FE0 port on the UMPT, GTMU, or WMPT in the BBU



FE/GE port on the UTRP in the BBU



FE/GE port on the LMPT in the BBU

RJ45 connector

External transmission equipment

FE/GE Surge Protection Transfer Cable

RJ45 connector

FE0 port on the UMPT, GTMU, or WMPT in the BBU

FE/GE port on the UTRP in the BBU

RJ45 connector

FE0 port near INSIDE on the UFLP in the SLPU

Interconnection Cable Between FE/GE Electrical Ports

RJ45 connector

FE0 port on the WMPT in the BBU

RJ45 connector

FE0 port on the GTMU in the BBU

Interconnection Cable Between FE/GE Optical Ports

LC connector

FE1 port on the WMPT in the BBU

LC connector

FE1 port on the GTMU in the BBU

FE/GE Fiber Optic Cable

LC connector

FE1 port on the WMPT, GTMU, LMPT, or UMPT in the

FC, SC, or LC connector

External transmission equipment

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

39

Cable

One End

The Other End

Connector

Installation Position

Connector

Installation Position

BBU

CPRI Optical Fiber

DLC connector

CPRI port on the GTMU, WBBP, LBBP, or UBRI in the BBU

DLC connector

CPRI_W port on an RRU

APMI-BBU Monitoring Signal Cable

RJ45 connector

MON1 port on the UPEU or UEIU in the BBU

Twisted pair

TX+, TX-, RX+, or RXport on the APMI

HEUA-BBU Monitoring Signal Cable

RJ45 connector

M0N1 port on the UPEU or UEIU in the BBU

RJ45 connector

COM_IN port on the HEUA

CMUA-BBU Monitoring Signal Cable

RJ45 connector

M0N1 port on the UPEU or UEIU in the BBU

RJ45 connector

COM_IN port on the CMUA

CMUE-BBU Monitoring Signal Cable

RJ45 connector

M0N1 port on the UPEU or UEIU in the BBU

RJ45 connector

COM_IN port on the CMUE

CMUEA-BBU Monitoring Signal Cable

RJ45 connector

M0N1 port on the UPEU or UEIU in the BBU

RJ45 connector

COM_IN port on the CMUEA

EMUA/EMUB Monitoring Signal Cable

RJ45 connector

M0N1 port on the UPEU or UEIU in the BBU

DB9 male connector

RS-485 port on the EMUA

PSU (EPW25-24S48D ) Monitoring Signal Cable

RJ45 connector

EXT_ALM0 port on the UPEU or UEIU in the BBU

Cord end terminal

ALM terminal on the PSU (DC/DC)

PSU (EPW25-24S48D ) In-Position Signal Cable

RJ45 connector

EXT_ALM0 port on the UPEU or UEIU in the BBU

RJ45 connector

RESENT port on the PSU (DC/DC)

BBU Alarm Cable

RJ45 connector

EXT_ALM0 port on the UPEU or

RJ45 connector

External alarm device

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

40

Cable

One End

The Other End

Connector

Installation Position

Connector

Installation Position

UEIU in the BBU

GPS Clock Signal Cable

SMA male connector

GPS port on LMPT, USCU, or UMPTa6 in the BBU

Type N female connector

GPS surge protector

BBU Interconnection Signal Cables

DLC connector

M0 to M4 ports on the UCIU in the BBU

DLC connector

CI port on the UMPT in the BBU

Cable Between Two Combined Base Stations

DB15 male connector

GCK port on the UCIU in the BBU

MD36 or DB15 male connector

DCTB or DGLUb

Adapter Used for Local Maintenance

USBa connector

USBa port on the UMPT in the BBU

Network connector

Ethernet cable

Cable

One End

The Other End

Connector

Installation Position

Connector

Installation Position

PGND cable for the BBU3910A

OT terminal (M6, 16 mm2 or

0.025 in.2)

Ground terminal on the BBU3910A

OT terminal (M8, 16 mm2 or

0.025 in.2)

Ground terminal on the ground bar

Power cable for the BBU3910A

EPC4 connector

NEG(-) and RTN(+) ports on the BBU3910A

Depending on the power equipment

Dry contact alarm cable for the BBU3910A

DB15 waterproof male connector (waterproof on the connector's both sides)

EXT_ALM port on the BBU3910A

Cord end terminal

Equipment to be monitored

RS485 alarm cable for the

DB15 waterproof

EXT_ALM port on the

RJ45 connector

COM_IN port on the

a: The security of the USB port is ensured by encryption, and the USB port can be shut down using commands. The USB commission port is used for commissioning the base station rather than configuring and exporting information of the base station.

The following table lists BBU3910A cables.

Table 6-4 BBU3910A cable list

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

41

Cable

One End

The Other End

Connector

Installation Position

Connector

Installation Position

BBU3910A

male connector (waterproof on the connector's both sides)

BBU3910A

OPM50M

CPRI Optical Fiber

DLC connector

CPRI port on the BBU3910A

DLC connector

CPRI_W port on an RRU

FE/GE fiber optic cable

LC connector

GE1 port on the BBU3910A

LC, FC, or SC connector

External transmission equipment

FE/GE Ethernet cable

RJ45 connector

GE0 port on the BBU3910A

RJ45 connector

External transmission equipment

E1/T1 cable

DB26 waterproof male connector

E1/T1 port on the BBU3910A

Depending on site requirements

External transmission equipment

Cable

One End

The Other End

Connector

Connected to...

Connector

Connected to...

PGND cable

OT terminal (M4, 6 mm2 [0.009 in.2])

Ground screws on the RHUB

OT terminal (M6, 6 mm2 [0.009 in.2])

Ground terminal on the external ground bar

Power Supply Cable

C13 female connector

AC power input socket on the RHUB

3-pin connector

External power input socket

CPRI Optical Fiber

DLC connector

CPRI port on the LBBP, WBBP or UBBP in the BBU

DLC connector

CPRI0 or CPRI1 port on the RHUB

CPRI port on

DLC connector

CPRI port on the

DCU Cable List

For details about the DCU cables, see DCU3900 Cables in DCU3900 Hardware Description.

RHUB Cable List

Table 6-5 lists RHUB cables.

Table 6-5 RHUB cable list

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

42

Cable

One End

The Other End

Connector

Connected to...

Connector

Connected to...

the LBBP, WBBP or UBBP in the BBU

DCU CPRI port on the DCU

CPRI0 or CPRI1 port on the RHUB

DLC connector

CPRI0 or CPRI1 port on the RHUB

CPRI port on the LBBP, WBBP or UBBP in the BBU

FC connector, SC connector, or LC connector

ODF

CPRI port on the DCU

CPRI0 or CPRI1 port on the RHUB

Ethernet Cable

RJ45 connector

CPRI_E0~CP RI_E7 port on the RHUB

RJ45 connector

CPRI_E0~CPRI_ E1 port on the pRRU

(Optional) Alarm Cable

RJ45 connector

EXT_ALM port on the RHUB

Bare end

Alarm signal port of the monitored equipment

Cable

One End

The Other End



If one end of the CPRI cable is connected to the DLC connector, the other end connects the BBU, DCU or RHUB through the DLC connector. If one end of the CPRI cable is connected to the ODF adapter, the other end connects the BBU or RHUB through a connector corresponding to the adapter. The connectors include the FC connector, SC connector, and LC connector.



The Extender can be used to lengthen the distance between the RHUB and the pRRU connected using the Ethernet cable. If the Extender is used, the Ethernet cable is divided into two parts, one between the RHUB and the Extender and the other between the Extender and the pRRU.

pRRU Cable List

Table 6-6 lists pRRU cables.

Table 6-6 List of pRRU3901 cables

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

43

Connector

Connected to ...

Connector

Connected to ...

Ethernet Cable

RJ45 connector

CPRI_E0~CP RI_E7 port on RHUB

RJ45 connector

CPRI_E0~CPRI_ E1 port on pRRU

RJ45 connector

Transmission port on Access Control(AC)

RJ45 connector



GE port on pRRU3901



CPRI_E1 port on pRRU3911/ pRRU3911+ WIFI

(Optional) RF Jumper

SMA straight male connector/Type N male connector

External antenna TX/RX RF port on pRRU

Based on the port model of the antenna system.

Antenna system

(1) CPRI optical cable

(2) Alarm cable

(3) Ethernet cable

(4) Power cable

(5) PGND cable

-



When the RHUB and the pRRU connected using the Ethernet cable. If the Extender is used,



In the indoor scenario, the Ethernet cable is divided into two parts, one between the RHUB and the Extender and the other between the Extender and the pRRU.



In the outdoor scenario (only pRRU3901 and pRRU3902), the Ethernet cable is divided into two parts, one among RHUB-PoE surge protector 2- PoE surge protector 3-Extender and the other among the Extender- PoE surge protector 4- PoE surge protector 1-pRRU.

6.4.3 Cable Connections

This section describes the cable connections for an RHUB.

Figure 6-28, Figure 6-29 shows the cable connections for an RHUB. The port of ETH are reserved.

Figure 6-28 Cable connections for an RHUB (indoor)

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

44

(1) CPRI optical cable

(2) Alarm cable

(3) Ethernet cable

(4) Power cable

(5) PGND cable

-

The Extender can be used to lengthen the distance between the RHUB and the pRRU connected using the Ethernet cable. If the Extender is used, the Ethernet cable is divided into two parts, one between the RHUB and the Extender and the other between the Extender and the pRRU.

Figure 6-29 Cable connections for an RHUB (outdoor)

The Extender can be used to lengthen the distance between the RHUB and the pRRU connected using the Ethernet cable. If the Extender is used, the Ethernet cable is divided into two parts, one between the RHUB and the Extender and the other between the Extender and the pRRU.

6.4.4 Cable Installation Process

This section describes the process of installing RHUB cables.

Figure 6-30 shows the RHUB cable installation process.

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

45

Figure 6-30 RHUB cable installation process

(1) OT terminal (6 mm2 [0.009 in.2], M4)

(2) OT terminal (6 mm2 [0.009 in.2], M6)

6.4.5 Installing PGND Cable

An RHUB PGND cable ensures proper grounding of an RHUB.

Prerequisites

The OT terminals at both ends of the PGND cable are prepared.

Context

The yellow and green or green PGND cable is a single cable. The cross-sectional area of the PGND cable is 6 mm2 (0.009 in.2). Both ends of the cable are OT terminals, as shown in Figure 1.

Figure 6-31 Exterior of a PGND cable

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

46



If the PGND cable is provided by the customer, a copper-core cable with a minimum cross-sectional area of 6 mm2 (0.009 in.2) or 10 AWG is recommended.



The OT terminals at both ends of the PGND cable are assembled at the site.



The M6 OT terminal has the default size. You can replace it with another OT terminal of the expected size based on the site requirement.



Ensure proper grounding of the RHUB using a PGND cable.



When installing the PGND cable, tightly press the OT terminal in the correct direction, as shown in Figure 6-32.

Figure 6-32 Correct direction of an OT terminal for the PGND cable

Procedure

Step 1 Route the PGND cable by referring to 6.4.1 Requirements for Cable Layout.

Step 2 Use a torque screwdriver or Phillips screwdriver to secure the M4 OT terminal at one end of

the PGND cable to the ground screw on the RHUB panel with a torque of 1.4 N•m. If the OT terminal is a one-hole OT terminal, connect it to the ground screw on the lower part of the RHUB panel, as shown in Figure 6-33.

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

47

Figure 6-33 Installing an RHUB PGND cable

Step 3 Use a torque screwdriver or Phillips screwdriver to secure the M8 OT terminal at one end of

the PGND cable to the wiring terminal on the ground bar at the site with a torque of 1.4 N•m.

----End

Follow-up Procedure

1. Route the cable, and then use a cable tie to bind the cable. For details, see 6.4.1

Requirements for Cable Layout.

2. Label the installed cable. For details, see section 15.4 Attaching an L-Shaped Label.

6.4.6 Installing Ethernet Cable

This section describes how to install an Ethernet cable.

Prerequisites



The Ethernet cable must be of Category 5e (enhanced) or higher. In addition, its cross-sectional area must be 24 AWG or larger and frame spread rating must be CM or higher.



The Ethernet cables can be straight-through cables or crossover cables.



With the internal PoE module providing power, the maximum length of an Ethernet cable is 100 m. With the Extender, the distance of the pRRU and RHUB can be extended by the Extender up to a total distance of 200 m.



Ethernet cables are not delivered, and they must be prepared onsite. You need to use a network cable tester to test the Ethernet cable connection.

Context

The Ethernet cable has the following functions:



Provides power supply for the pRRU when connected to the CPRI_E0 port on the pRRU.



Transmits CPRI signals between an RHUB and a pRRU.

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

48

Procedure

Step 1 Make the Ethernet cables.

For details about the cable connections in the different scenarios, see 6.4.3 Cable Connections. The Ethernet cable connections between RHUB and pRRUs are the same. The following section describes the connections between RHUB-Extender-pRRU3901 as an example.

In the outdoor scenario, PoE surge protector is needed to provide surge protection for the Ethernet ports. For details about the installation of PoE surge protector, see 12 (Optional) Installing the PoE Surge Protector and Cables.

1. Assemble an RJ45 connector and an Ethernet cable by following instructions in

Assembling the Unshielded RJ45 Connector and the Ethernet Cable of Installation Reference.

Follow pin assignment instructions described in section Ethernet Cable in DBS3900 LampSite Hardware Description to assemble the unshielded RJ45 connector and the Ethernet cable. Otherwise, the transmission signal quality deteriorates and CPRI links may be disconnected.

2. Check whether the made RJ45 connector is qualified by following instructions in

Checking the Appearance of Metal Contact Strips.

3. To complete the assembly of the other end, repeat Step 1.1 and Step 1.2.

4. Check whether the touch points on the connectors at both ends are normally conducted

and well contacted and whether the connections are correct by following instructions in Testing the Connection of Assembled Cables of Installation Reference.

Step 2 Connect the RJ45 connector at the other end of the Ethernet cable to any port ranging from

CPRI_E0 to CPRI_E7 on the RHUB panel based on the engineering design.

Step 3 Optional: Connect the RJ45 connector at the other end of the Ethernet cable to the output

port of the Extender. Then, connect the RJ45 connector at one end of another Ethernet cable to the input port of the Extender.

If the Extender is used, the Ethernet cable is divided into two parts, one between the RHUB and the Extender and the other between the Extender and the pRRU.

Step 4 Remove the dustproof cap of the CPRI_E0 port on the pRRU.

Step 5 Connect the RJ45 connector at one end of the Ethernet cable to the CPRI_E0 port on the

pRRU panel, as shown in Figure 6-34, Figure 6-35.

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

49

Figure 6-34 Install an Ethernet cable between an RHUB and a pRRU3901

(1) Ethernet cable

(2) CPRI_E0 port on the pRRU3901

(1) Ethernet cable

(2) CPRI_E0 port on the pRRU3902

Figure 6-35 Install an Ethernet cable between an RHUB and a pRRU3902 or pRRU3911/ pRRU3911+WIFI

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

50

Figure 6-36 Install an Ethernet cable between an RHUB and a pRRU3907

(1) Ethernet cable

(2) CPRI_E0 port on the pRRU

----End

Follow-up Procedure

1. Route the cable, and then use a cable tie to bind the cable. For details, see 6.4.1

Requirements for Cable Layout.

2. Label the installed cable. For details, see section 15.4 Attaching an L-Shaped Label.

6.4.7 Installing CRPI Optical Cables

Optical fibers can be used to interconnect BBU and RHUBs, or cascade RHUBs.

Context



Multi-mode optical modules for CPRI ports are labeled MM and each has a black or gray puller.



Single-mode optical modules are labeled SM and each has a blue puller.



For details about the connection of CPRI optical cables, see CPRI Topology in DBS3900 LampSite Technical Description.

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

51

Procedure

One End

The Other End

Step 1 Install an optical module, as shown in Figure 6-37 and Figure 6-38.



An optical module to be installed must match the rate of its corresponding port.

The performance of an optical module that is exposed to the air for more than 20 minutes may be abnormal. Therefore, you must insert a fiber optic cable into an unpacked optical module within 20 minutes.

1. Remove the dust-proof cap from the CPRI port on the RHUB panel.

2. Remove the dust-proof cap on the optical module.

3. Lower the puller of the optical module.

4. Insert the optical module into the CPRI port on the RHUB, DCU, BBU or ODF.

5. Raise the puller of the optical module.

Figure 6-37 Removing the dust-proof cap from a port

Figure 6-38 Installing an optical module

Step 2 Install a CPRI optical cable, as shown in Figure 6-39.

1. Remove the dust-proof cap from the optical cable connector.

2. Install the optical cables by referring to Table 6-7.

Table 6-7 CPRI optical cable connections

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

52

Connect or

Connected to

Connector

Connected to

DLC connecto r

BBU/LBBP&WBBP/CPRI port

DLC connector

CPRI0 or CPRI1 port on the RHUB

BBU/LBBP&WBBP/CPRI port

DLC connector

CPRI port on the DCU

CPRI0 or CPRI1 port on the RHUB

DLC connector

CPRI0 or CPRI1 port on the RHUB

BBU/LBBP&WBBP/CPRI port

FC, SC, or LC connector

ODF

CPRI port on the DCU

CPRI0 or CPRI1 port on the RHUB



In sharing BBUs with Macro Networks scenario, RHUBs share only main control boards with with RF modules on macro base stations, not baseband processing units.



If one end of the CPRI cable is connected to the DLC connector, the other end connects the BBU or RHUB through the DLC connector. If one end of the CPRI cable is connected to the ODF adapter, the other end connects the BBU/DCU or RHUB through a connector corresponding to the adapter. The connectors include the FC connector, SC connector, and LC connector.



When connecting the CPRI cable to the TX and RX ports of the optical module through connectors in a cross manner, ensure that one end of a core of the CPRI cable is connected to the TX port and the other end is connected to the RX port. Figure 6-39 shows how to install a CPRI optical cable for connecting the BBU and RHUBs.

Figure 6-39 Installing an CRPI optical cable

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

53

----End

Follow-up Procedure

1. Route the cable, and then use a cable tie to bind the cable. For details, see 6.4.1

Requirements for Cable Layout.

2. Label the installed cable. For details, see section 15.4 Attaching an L-Shaped Label.

6.4.8 Installing Alarm Cable (Optional)

An RHUB alarm cable transmits dry node alarm signals.

Prerequisites

Connectors for an alarm cable are prepared.

Context

Figure 6-40 shows the exterior of an RHUB alarm cable. 6.4.2 Cable List shows the installation position on both ends of the RHUB cable.

Figure 6-40 RHUB alarm cable

Procedure

Step 1 Connect the RJ45 connector on one end of the alarm cable to the EXT_ALM port on the

RHUB.

Step 2 Connect the other end of the alarm cable to the alarm cable port on the device to be

monitored.

----End

Follow-up Procedure

1. Route the cable, and then use a cable tie to bind the cable. For details, see 6.4.1

Requirements for Cable Layout.

2. Label the installed cable. For details, see section 15.4 Attaching an L-Shaped Label.

6.4.9 Installing Power Cable

The RHUB power cable provides 110 V AC/220 V AC power supply for the RHUB.

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

54

Context

Power Supply

Upper-level AC Circuit Breaker (For a single RHUB)

Cross-Sectional Area of the Input Power Cable

220 V AC single-phase

≥ 6 A

1 mm2

110 V AC single-phase

≥ 10 A

1.25 mm2

Procedure

Step 1 Route the power cable by referring to 6.4.1 Requirements for Cable Layout.

Step 2 Connect the power connector on the X1 end to the AC power input port on the RHUB panel,

Table 6-8 lists the recommended configurations of upper-level circuit breakers and power cables for a RHUB.

Table 6-8 Configurations of upper-level circuit breakers and power cables

as shown in Figure 6-41.

Step 3 Connect the power connector on the X2 end to the external power supply port, as shown in

Figure 6-41.

Figure 6-41 Installing an RHUB power cable

----End

Follow-up Procedure

1. Route the cable, and then use a cable tie to bind the cable. For details, see 6.4.1

Requirements for Cable Layout.

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

55

2. Label the installed cable. For details, see section 15.4 Attaching an L-Shaped Label.

No.

Item

1

The position for each device conforms to the engineering design and meets the space requirement.

2

Ensure that the RHUB is properly installed.

3

The surface of the RHUB is neat and clean. The external paint is intact. The labels, tags, and nameplates are correct, legible, and complete.

No.

Item

1

The power cables and PGND cables comply with the requirements of local regulations.

2

The power cables or the PGND cables are not inversely connected or short-circuited.

3

The power cables and PGND cables are bound separately from other cables.

4

Labels are attached to both ends of the power cables, PGND cables, optical fibers, and Ethernet cables.

5

The power cables and PGND cables are intact.

6

The power cables and PGND cables have no weld nugget.

7

No breaking device such as a switch or fuse lies in the electric connection of the grounding system.

8

The redundant part of PGND cable is stripped off.

9

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

10

The flat washers and spring washers are fixed securely and closely at all the wiring terminals.

11

The work GND cable and PGND cable of the BTS share a group of grounding conductors with the lightning and GND cables of the building.

6.5 Checking the RHUB Hardware Installation

After an RHUB is installed, check the installation of hardware including the devices and related cables.

Table 6-9 lists the hardware installation checking items.

Table 6-9 Hardware installation checking list

Table 6-10 lists the checking list of the power cable and PGND cable connections.

Table 6-10 Checklist for power cable and PGND cable connections

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

56

No.

Item

1

The connectors of the signal cables must securely connected.

2

The connectors of the signal cables are intact.

3

The signal cables are intact.

4

The cable ties are evenly spaced. The signal cables are bound neatly with cable ties to proper tightness, and arranged at even intervals in the same direction.

5

The extra length of the cable ties is cut and removed. The cut surfaces of the indoor cables are smooth and have no sharp edges.

6

The cable layout facilitates maintenance and expansion.

7

Correct and clear labels are attached to both ends of the signal cables.

8

The distance between the bundled fiber tails and the RHUB panel is less than 70 mm.

No.

Item

1

The connectors of the other cables must securely connected.

2

Labels on the cables are legible and bound based on the engineering requirements. The cables must be bound tightly and neatly. The sheaths of the cables must not be damaged.

3

Positions for routing the cables must meet requirements of the engineering design.

Table 6-11 lists the check items of the signal cable connection.

Table 6-11 Checklist for the signal cable connection

Table 6-12 lists the checking items for other cable connections.

Table 6-12 Checklist for other cable connections

6.6 Power-on Check on an RHUB

This section describes the power-on check on the RHUB after the RHUB hardware is installed and checked.

Context

After the RHUB and pRRUs are installed and connected to each other, power on them no matter whether the BBU is installed.

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

57

Procedure

If...

Then...

The RHUB earth resistance is less than 10 ohms

Go to Step 2.

The RHUB earth resistance is equal to or larger than 10 ohms

Find out the cause and ensure that the resistance meets requirement. Then, go to

Step 2.

If...

Then...

The external power supply ranges from 100 V AC to 240 V AC

Go to Step 3.

The external power supply does not range from 100 V AC to 240 V AC

Find out the cause and ensure that the resistance meets requirement. Then, go to

Step 3.

If the Status of the RUN Indicator...

It Indicates that...

Then...

Steady on

The power supply is normal while the board is faulty.

Power off the RHUB, and power on it again after rectifying the board fault.

Steady off

There is no power input or the board is faulty.

Power off the RHUB, and check the power input again. Rectify the board faulty and power on the RHUB again if the power input is normal.

On for 1s and off for 1s

The devices work properly.

End the operation.

On for 0.125s and off for

0.125s

The board software is being uploaded.

Power off the RHUB if the uploading is not finished in 5 minutes, and check whether the configuration file is correct. Power on the RHUB again after the fault is rectified.

Step 1 Measure the RHUB earth resistance.

Step 2 Measure the voltage of the RHUB.

Power-on check involves high-voltage operation. Be cautious when conducting the power-on check. Any direct contact with the input voltage or indirect contact through damp objects might endanger your life.

Step 3 Power on the RHUB. Wait 3 to 5 minutes, check the status of the RUN indicator of the

RHUB after the RHUB runs properly.

DBS3900 LampSite Installation Guide

6 Installing an RHUB

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

58

If an RHUB is not connected to any BBU, the RHUB is considered normally powered on when any indicator on the RHUB is on.

----End

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

59

About This Chapter

This chapter describes the pRRU3901 installation process. The pRRU3901 can have two transmission ports (plus PWR port) or three transmission ports (plus PWR port or no PWR port). Unless otherwise specified, this document uses the pRRU3901 with three transmission ports plus no PWR port as an example.

7.1 Information About the Installation

7 Installing a pRRU3901

This section describes the information that you must be familiar with before installing a pRRU3901, including the pRRU3901 product family, installation scenarios, installation space and environment requirements.

7.2 Obtaining the MAC Address (Optional)

Before installing a pRRU3901, record the media access control (MAC) address, which will be used during pRRU3901 commissioning. This section applies only when a pRRU3901 with three transmission ports is configured with a Wi-Fi daughter board.

7.3 Installation Process

This section describes the pRRU3901 installation process, which involves installing a pRRU3901, and cables, checking the pRRU3901 hardware installation, and powering on the pRRU3901.

7.4 Installing a pRRU3901

This section describes the pRRU3901 installation process. A pRRU3901 can be installed on a wall, ceiling, indoor metal pole, or standard keel, but not on an aluminum panel or a non-standard keel.

7.5 Installing pRRU3901 Cables

This section describes the procedure of installing the pRRU3901 cables.

7.6 Checking the pRRU3901 Hardware Installation

pRRU3901 hardware installation checking includes hardware and cable installation checking.

7.7 Powering on the pRRU3901

This section describes the power-on check on the pRRU3901 after the pRRU3901 hardware is installed and checked.

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

60

7.1 Information About the Installation

Category

Equip ment

Optional or Mandatory

Quantity

Function

Main equipment

pRRU 3901

Mandatory

1

Processes the radio frequency signals.

Extern al antenn a

Optional

2

Provides external antennas for the pRRU3901.

NOTE

Configure two external antennas for each RF daughter board.

Auxiliary device

Mounti ng kits

Mandatory

1

Supports the pRRU3901 installation on a wall, pole, ceiling, or keel. The mounting kits vary with the pRRU3901 installation mode.

Cabine t

Optional



None and one Extender is needed



Yes and two Extenders are needed

Install the pRRU3901 and Extender in the outdoor scenario.

Extend er

Optional

1 or 2

NOTE

The quantity depends on the number of Ethernet cables in use.

Extends the distance between the pRRU3901 and RHUB.

This section describes the information that you must be familiar with before installing a pRRU3901, including the pRRU3901 product family, installation scenarios, installation space and environment requirements.

7.1.1 Product Family

This chapter describes the configurations and functions of the pRRU3901 components.

Table 7-1 lists the pRRU3901 product family.

Table 7-1 pRRU3901 product family

7.1.2 Installation Scenario

The pRRU3901 can be installed on a wall, ceiling, pole, or keel. The following table describes the installation in different scenarios.

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

61

Installing a pRRU3901 on a wall

Installation Mode

Requirements

Mounting Brackets

Installation Diagram

Installing the pRRU3901 on a wall by drilling holes

For details, see

7.4.2 Installing a pRRU3901 on a Wall.



The wall can bear a load at least four times the weight of a pRRU3901.



The screws must be tightened with a torque of 10 N·m. This ensures the screws work properly and the wall remains intact without cracks in it.

1. Plate

2. Screw (M6X50)

3. Plastic expansion

sleeve

4. Flat washer

Installing the pRRU on a wall using a V clamp through an attachment plate

For details, see

7.4.5 Installing a pRRU3901 on a Plate.



The wall can bear a load at least four times the weight of a pRRU3901.



The thickness of the wall is less than 80 mm.

1. Plate

2. V clamp

3. Bolt (M6X80) Installing the pRRU3901 on a wall using a plate on a metal wall

The wall cannot bear a load at least four times the weight of the pRRU. For example, EPS walls, MDF walls, or walls cannot be drilled.

The plate is prepared by customers.



The pRRU3901 must keep a minimum of 0.5 m away from the power equipment with interference, and keep a minimum of 2 m away from the source with radiation.



The pRRU3901 must keep away from a metal wall to avoid the impact on the antenna performance.

When a pRRU3901 is installed on a wall, installation modes vary with the quality of wall, as shown in Table 7-2.

Table 7-2 Wall-mounted suggestion

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

62

Installing a pRRU3901 on a ceiling

Installation Mode

Requirements

Mounting Brackets

Installation Diagram

Installing the pRRU3901 on a ceiling by drilling holes

For details, see

7.4.3 Installing a pRRU3901 on a Ceiling.



The ceiling, such as a concrete ceiling, can bear a load at least four times the weight of the pRRU3901.



The screws must be tightened with a torque of 10 N·m. This ensures the screws work properly and the ceiling remains intact without cracks in it.

1. Plate

2. Screw (M6X50)

3. Plastic expansion

sleeve

4. Flat washer

Installing the pRRU3901 on a ceiling using a V clamp through an attachment plate

For details, see

7.4.5 Installing a pRRU3901 on a Plate.



The ceiling, such as a concrete ceiling, can bear a load at least four times the weight of the pRRU3901.



The thickness of the ceiling is less than 80 mm.

1. Plate

2. V clamp

3. Bolt (M6X80)

Installing the pRRU3901 on a pole

For details, see

7.4.4 Installing a pRRU3901 on a Pole.

A pole under the ceiling can bear a load at least four times the weight of the pRRU3901.

For details, see Table 7-4.

Installing the pRRU3901 on a keel

For details, see

7.4.6 Installing a pRRU3901

A keel under the ceiling can bear a load at least four times the weight of the pRRU3901.

For details, see Table 7-5.

When a pRRU3901 is installed on a ceiling, installation modes vary with the quality of the ceiling, as shown in Table 7-3.

Table 7-3 Ceiling-mounted suggestion

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

63

Installation Mode

Requirements

Mounting Brackets

Installation Diagram

on a Keel.

Installation Mode

Requirements

Mounting Brackets

Installation Diagram

Installing the pRRU3901 on a pole

For details, see

7.4.4 Installing a pRRU3901 on a Pole.

The diameter of the pole ranges from 30 mm to 70 mm.

1. Plate

2. V clamp

3. Bolt (M6X80)

The diameter of the pole ranges from 70 mm to 110 mm.

1. Plate

2. Hose clamp, which is

prepared by the customer

Installation Mode

Requirements

Mounting Brackets

Installation Diagram

Installing the pRRU3901 on a keel

For details, see

7.4.6 Installing a pRRU3901 on a Keel.

The keel is in U-shape, T-shape, H-shape, or other shapes.

1. Plate

2. V clamp

3. Bolt (M6X80)

shows the pRRU installed on a U-shaped keel.

Installing the pRRU3901 on a pole

When a pRRU3901 is installed on a pole, installation modes vary with the diameter of the pole, as shown in Table 7-4.

Table 7-4 Pole-mounted suggestion

Installing the pRRU3901 on a keel

The pRRU3901 can be installed on a keel of U-shape, T-shape, or H-shape. For the keels of other shapes, they are determined based on the onsite requirements.

Table 7-5 Keel-mounted installation suggestion

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

64

Installation Mode

Requirement s

Mounting Brackets

Installation Diagram

Installing the cabinet

For details, see7.4.7 Installing the Cabinet

Remove the housing before installing a pRRU3901 in the cabinet.

1. Plate

pRRU3901 cabinet

In the outdoor scenario, pRRU3901 should be installed in the cabinet.

Table 7-6 Cabinet installation suggestion

7.1.3 Space Requirements

This chapter describes the space requirements of the pRRU3901.

When the pRRU3901 is installed on a wall, ceiling, pole or keel, the minimum space is required for easy cabling and O&M. Based on the engineering practice, the recommendation for the installation space is provided.

During installation, a minimum clearance of 2 m must be reserved between the pRRU3901 working on the 2.6 GHz band and the Wi-Fi module if they need to process services concurrently.

Figure 7-1 shows the recommended space requirements of the pRRU3901.

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

65

Figure 7-1 Recommended space requirements of the pRRU3901

Specificat ions

Condition

Remarks

Operating temperatur e



Indoor: - 5 °C to + 40 °C



Outdoor: - 20 °C to + 40 °C

Relative humidity

5% RH to 95% RH

Altitude

- 60 m to + 1800 m

Works properly.

The recommended space for installing a single pRRU3901 is described as follows:



At least 300 mm above the pRRU3901 is reserved for maintenance.



At least 300 mm under the pRRU3901 is reserved for cabling.



At least 300 mm on the left of the pRRU3901 is reserved for maintenance.



At least 300 mm on the right of the pRRU3901 is reserved for maintenance.



At least 400 mm in front of the pRRU3901 is reserved for maintenance



At least 40 mm on the back of the pRRU3901 is reserved for ventilation.

In the outdoor scenario, there is no space requirement for the pRRU3901 installing in the cabinet.

7.1.4 Installation Environment Requirements

The installation environment of a pRRU3901 involves the running environment specifications for the pRRU3901 and other specifications.

Running Environment Specifications

Table 7-7 shows the environment specifications for the pRRU3901 installed indoors.

Table 7-7 pRRU3901 environment specifications

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

66

Specificat ions

Condition

Remarks

1800 m to 4000 m

Above the 1800 m altitude, the maximum operating temperature decreases by 1 °C each time the altitude increases by 220 m.

Other Running Environment Specifications



The pRRU3901 cannot be installed at an air outlet of the heat dissipation box of an air conditioner or other heat-generating appliances.



The pRRU3901 cannot be installed near a strong heat source.



The pRRU3901 cannot be installed in a position with water dripping, such as outdoor equipment of air conditioners, pipe, and leaking or dripping roofs.



The installation position must be far from rains. If the pRRU3901 is installed on a wall, there must be no window on either side of the wall.



The installation position must be far away from high voltage, highly corrosive devices, flammable or explosive substances, and electromagnetic interference such as power stations, high-voltage substations, and wired TV towers.



The pRRU3901 must be installed in a dry, ventilating, and dust-proof place.



If the pRRU3901 is installed in parking areas or basements, the installation position must be well-ventilated.

7.2 Obtaining the MAC Address (Optional)

Before installing a pRRU3901, record the media access control (MAC) address, which will be used during pRRU3901 commissioning. This section applies only when a pRRU3901 with three transmission ports is configured with a Wi-Fi daughter board.

Context

The MAC address indicates the IP address through which a device can be reached.

Procedure

Step 1 Remove the backup WIFI MAC label from the front housing of the pRRU3901 and keep them

secure, as shown in Figure 7-2.



Do not remove the WIFI MAC label on the side of the pRRU3901 housing.



Before removing the backup WIFI MAC label, photograph it.

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

67

Figure 7-2 Removing backup WIFI MAC label

Step 2 Save the MAC according to 15.1 MAC Collection Template, and report it to the pRRU3901

commissioning personnel.

----End

7.3 Installation Process

This section describes the pRRU3901 installation process, which involves installing a pRRU3901, and cables, checking the pRRU3901 hardware installation, and powering on the pRRU3901.

Figure 7-3 shows the pRRU3901 installation process.

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

68

Figure 7-3 pRRU3901 installation process

7.4 Installing a pRRU3901

This section describes the pRRU3901 installation process. A pRRU3901 can be installed on a wall, ceiling, indoor metal pole, or standard keel, but not on an aluminum panel or a non-standard keel.

Note the following when installing the pRRU3901:



The pRRU3901 cannot be grounded. If the pRRU3901 is grounded but the RHUB connected to this pRRU3901 is not, the pRRU3901 may fail to be powered on.



A minimum distance of 50 cm must be reserved between the pRRU3901 and the incandescent lamp.



The installation spacing between the pRRU3901 and the temperature sensor must be greater than 50 cm.



It is good practice to install the pRRU3901 on materials that can tolerate a temperature higher than 65°C and have an ignition point higher than 70°C.

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

69

7.4.1 pRRU3901 Mounting Kits

(1) V clamp

(2) Mounting bracket

(3) Screw (M6x50)

(4) Plastic expansion sleeve

(5) Bolt (M6x80)

(6) Flat washer

This section describes the pRRU3901 mounting kits.

Figure 7-4 shows the exterior of the pRRU3901 mounting kits.

Figure 7-4 pRRU3901 mounting kits

The following figure shows the specifications of the mounting bracket.

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

70

Figure 7-5 Mounting bracket specifications

7.4.2 Installing a pRRU3901 on a Wall

This section describes how to install a pRRU3901 on an indoor wall. If a wall indoors has adequate load bearing capacity and installation space, it is good practice to install the pRRU3901 on the wall. If the wall does not have adequate load bearing capacity, choose an installation mode based on site requirements.

Context

This section describes only the wall-mounted installation in which mounting kits are directly installed on the wall without auxiliary devices. The procedure for other wall-mounted installation modes is similar.

Procedure

Step 1 Determine the position for installing the pRRU3901 based on the construction blueprint and

the clearance requirements.

For details about the clearance requirements, see 7.1.3 Space Requirements.

Step 2 Place the mounting bracket in the installation position against the wall. Then, level the

mounting bracket and use a marker to mark two anchor points. See Figure 7-6.

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

71

Figure 7-6 Anchor points on the pRRU3901 mounting bracket (unit: mm)

(1) Wall

(2) Mounting bracket

(3) Anchor point

To prevent inhalation or eye contact with dust, take adequate preventive measures when drilling holes.

Step 3 Use a hammer drill with φ8 bore to drill holes at the marked anchor points, as shown in

Figure 7-7. Use a vacuum cleaner to clean the dust inside and around the holes and measure the distance between them. If they are inaccurately positioned, re-measure and re-drill the holes. Then, use a rubber mallet to hit a plastic expansion sleeve into each hole.

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

72

Figure 7-7 Drilling holes and installing expansion bolts

Step 4 Lead the M6x50 screws through the washers, and then through the drilling holes on the

mounting bracket to the plastic expansion sleeves, and torque the screws to 5 N•m, as shown

in Figure 7-8.

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

73

Figure 7-8 Installing the mounting bracket

If the screws cannot be tightened using a Phillips screwdriver, use a hex key or an electric screwdriver to assist the installation.

Step 5 Fit the four hooks of the pRRU3901 into the mounting holes on the mounting bracket and

then press the pRRU3901 downwards until a click is heard. See Figure 7-9.

It is good practice to perform the installation from the side view to promptly align the hooks with the mounting holes.

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

74

Figure 7-9 Installing the pRRU3901 on a wall

----End

7.4.3 Installing a pRRU3901 on a Ceiling

This section describes how to install a pRRU3901 on the ceiling, such as the concrete ceiling, when the ceiling has adequate load bearing capacity and installation space.

Context

If the pRRU3901 is installed on a ceiling, the temperature of the ceiling may increase by a maximum of 30 degrees. Therefore, whether a pRRU3901 can be installed on a ceiling depends on the ceiling material.

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

75

Procedure

(1) Ceiling

(2) Mounting bracket

(3) Anchor point

Step 1 Determine the position for installing the pRRU3901 based on the construction blueprint and

Step 2 Place the mounting bracket in the installation position against the ceiling. Then, level the

the clearance requirements.

For details about the clearance requirements, see 7.1.3 Space Requirements.

mounting bracket and use a marker to mark two anchor points. See Figure 7-10.

Figure 7-10 Anchor points on the pRRU3901 mounting bracket (unit: mm)

To prevent inhalation or eye contact with dust, take adequate preventive measures when drilling holes.

Step 3 Use a hammer drill with φ8 bore to drill holes at the marked anchor points, as shown in

Figure 7-11. Use a vacuum cleaner to clean the dust inside and around the holes and measure the distance between them. If they are inaccurately positioned, re-measure and re-drill the holes. Then, use a rubber mallet to hit a plastic expansion sleeve into each hole.

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

76

Figure 7-11 Drilling holes and installing expansion bolts

Step 4 Lead the M6x50 screws through the washers, and then through the drilling holes on the

mounting bracket to the plastic expansion sleeves, and use a torque screwdriver to torque the screws to 5 N•m, as shown in Figure 7-12.

Figure 7-12 Installing the mounting bracket

If the screws cannot be tightened using a Phillips screwdriver, use a hex key or an electric screwdriver to assist the installation.

Step 5 Fit the four hooks of the pRRU3901 into the mounting holes on the mounting bracket and

then press the pRRU3901 downwards until a click is heard. See Figure 7-13.

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

77

It is good practice to perform the installation from the side view to promptly align the hooks with the mounting holes.

Figure 7-13 Installing a pRRU3901 on a ceiling

----End

7.4.4 Installing a pRRU3901 on a Pole

This section describes how to install a pRRU3901 on a metal pole indoors.

Procedure

Step 1 Determine the position for installing the pRRU3901 based on the construction blueprint and

the clearance requirements.

For details about the clearance requirements, see 7.1.3 Space Requirements.

Step 2 If the diameter of the pole ranges from 30 mm to 70 mm, use the delivered V clamp,

mounting bracket, and bolts to install the pRRU3901 on the pole. Lead the M6x80 bolts through the mounting bracket, and torque the bolts to 5 N•m, as shown in Figure 7-14.

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

78

Figure 7-14 Securing the pRRU3901 mounting bracket on the metal pole

If the diameter of the pole is greater than 70 mm, use the hose clamp to install the mounting bracket on the pole. The hose clamp is prepared by customers. Torque the bolts to 5 N•m, as shown in Figure 7-15.

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

79

Figure 7-15 Securing the pRRU3901 mounting bracket on the metal pole

Step 3 Fit the four hooks of the pRRU3901 into the mounting holes on the mounting bracket and

then press the pRRU3901 downwards until a click is heard. See Figure 7-16.

It is good practice to perform the installation from the side view to promptly align the hooks with the mounting holes.

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

80

Figure 7-16 Installing a pRRU3901 on a pole

----End

7.4.5 Installing a pRRU3901 on a Plate

This section describes how to install a pRRU3901 on a plate. If a suspended ceiling plate has adequate load bearing capacity and installation space, the pRRU3901 can be installed on the plate. However, it is good practice not to install a pRRU3901 on an aluminum plate.

Procedure

Step 1 Determine the position for installing the pRRU3901 based on the construction blueprint and

the clearance requirements.

For details about the clearance requirements, see 7.1.3 Space Requirements.

Step 2 Place the mounting bracket in the installation position against the wall. Then, level the

mounting bracket and use a marker to mark two anchor points. See Figure 7-17.

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

81

Figure 7-17 Anchor points on the pRRU3901 mounting bracket (unit: mm)

(1) Plate

(2) Mounting bracket

(3) Anchor point

To prevent inhalation or eye contact with dust, take adequate preventive measures when drilling holes.

Step 3 Use a hammer drill with φ8 bore to drill holes at the anchor points.

Step 4 Lead the M6x80 bolts through the mounting bracket and the ceiling plate, and use a torque

screwdriver to torque the bolts to 5 N•m, as shown in Figure 7-18.

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

82

Figure 7-18 Installing the pRRU3901 mounting bracket

Step 5 Fit the four hooks of the pRRU3901 into the mounting holes on the mounting bracket and

then press the pRRU3901 downwards until a click is heard. See Figure 7-19.

It is good practice to perform the installation from the side view to promptly align the hooks with the mounting holes.

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

83

Figure 7-19 Installing a pRRU3901 on a plate

----End

7.4.6 Installing a pRRU3901 on a Keel

This section describes how to install a pRRU3901 on a keel. If a suspended ceiling plate cannot bear the pRRU3901, the pRRU3901 can be installed on the keel on the ceiling.

Context

Before installing the pRRU3901 on a keel, ensure that the keel is strong enough to bear the pRRU3901.



The mounting bracket of the pRRU3901 can be installed on the keel of the following specifications: GBT 11981-2008, JIS A6517-2002, and ASTM C635 C635M-2007. The installation mode depends on onsite requirements because there are various keels.



This section describes the procedure of installing a pRRU3901 on the keel of JIS standard used in Japan. The procedure of installing a pRRU3901 on other keels is the same as that of installing a pRRU3901 on the keel of JIS standard.

Procedure

Step 1 Determine the position for installing the pRRU3901 based on the construction blueprint and

the clearance requirements.

For details about the clearance requirements, see 7.1.3 Space Requirements.

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

84

Step 2 Place the V clamp across the keel, and use a marker to mark the projective positions of the

mounting holes on the suspended ceiling plate, as shown in Figure 7-20.

Figure 7-20 Anchor points on the suspended ceiling plate (unit: mm)

To prevent inhalation or eye contact with dust, take adequate preventive measures when drilling holes.

Step 3 Use a hammer drill to drill holes at the anchor points. You are advised to use the hammer drill

with Ф12 bore.

Step 4 Lead the M6x80 bolts through the mounting bracket and the suspended ceiling plate. Use a

torque screwdriver to torque the bolts to 5 N•m, as shown in Figure 7-21.

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

85

Figure 7-21 Installing the pRRU3901 mounting bracket

Step 5 Fit the four hooks of the pRRU3901 into the mounting holes on the mounting bracket and

then press the pRRU3901 downwards until a click is heard. See Figure 7-22.

It is good practice to perform the installation from the side view to promptly align the hooks with the mounting holes.

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

86

Figure 7-22 Installing a pRRU3901 on a keel

----End

7.4.7 Installing the Cabinet

In the outdoor scenario, the pRRU3901 should be installed in the cabinet firstly.

Context



When installed in the cabinet, the housing of pRRU3901 should be removed.



An RF surge protector provides surge protection for the RF ports on pRRU3902, and a PoE surge protector provides surge protection for the CPRI ports.



One pRRU3901 with internal antenna need to be configured with one or two PoE surge protectors.



One pRRU3901 with external antenna need to be configured with one PoE surge protector, or two RF surge protectors when one RF daughter board is configured, or four RF surge protectors when two RF daughter boards are configured.

Procedure

Step 1 Remove the housing on the top and at the bottom of pRRU3901, as shown in Figure 7-23.

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

87

Figure 7-23 Removing the housing of pRRU3901

1. Use the M4 Phillips screwdriver to loosen the Phillips screw on the pRRU housing.

Wrench and remove the housing from the installation position of the Phillips screw hole, as shown in Figure 7-24.

Figure 7-24 Removing the pRRU housing

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

88



The pRRU housing and the RF daughter board can be secured using either Phillips screws or protection screws, requiring the same installation operations. This section uses Phillips screws as an example to describe the installation operations.



Keep the Phillips screw secure for future use.

2. Use the M4 Phillips screwdriver to loosen the Phillips screws on the RF daughter board,

as shown in Figure 7-25.

Figure 7-25 Loosen the Phillips screws

3. Use the left hand to hold the RF daughter board and the right hand to hold the right

handle of the RF daughter board to remove the RF daughter board and put it into an ESD box or bag, as shown in Figure 7-26.

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

89

Figure 7-26 Removing the RF daughter board in slot1

4. Use an M3 Phillips screwdriver to loosen the two fastening screws of the light pipe, and

remove the light pipe, as shown in Figure 7-27.

Figure 7-27 Removing the light pipe

5. Use the M3 Phillips screwdriver to loosen the four fastening screws of the pDock mother

board, and remove the pDock mother board, as shown in Figure 7-28.

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

90

Figure 7-28 Removing the pDock mother board

6. Install the RF daughter boards in slots S1, and use the M4 Phillips screwdriver to tighten

the two fastening screws always carried on each daughter board to 1.4 N•m, as shown in

Figure 7-29.

Figure 7-29 Installing the RF daughter boards

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

91

The installation positions of the RF daughter boards must be consistent before and after the replacement.

Step 2 Install the plate onto the cabinet, as shown in Figure 7-30.

Figure 7-30 Installing the plate onto the cabinet

Make sure all the cables are installed before installing the plate. For details about installing the cables of pRRU3901, see Figure 7-31.

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

92

Figure 7-31 Installing the pRRU3901 cables

(1) RF Jumper

(2) CPRI_E0 port

(3) Ethernet Cable

Step 3 Fit the four hooks on pRRU3901 into the hooks on the mounting bracket, and then push

pRRU3901 down against the mounting bracket until a click is heard, as shown in Figure 7-32.

Figure 7-32 Installing a pRRU3901 into the cabinet

DBS3900 LampSite Installation Guide

7 Installing a pRRU3901

Issue 08 (2016-05-30)

Huawei Proprietary and Confidential

93

----End

7.5 Installing pRRU3901 Cables

This section describes the procedure of installing the pRRU3901 cables.

7.5.1 Requirements for Cable Layout

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

If certain cables listed below are not required, skip the requirements for routing these cables.

General Requirements for Cable Layout

National Standards



Code for Engineering Design of Generic Cabling System for Building and Campus (GB 50311-2007)



Code for Engineering Acceptance of Generic Cabling System for Building and Campus (GB50312-2007).



Security Protection Engineering Technology Specifications (GB 50348-2004)



Code for Construction and Acceptance of the Electronic Information System Room (GB 50462-2008)



Code for Quality Acceptance of the Intelligent Building Engineering (GB 50339-2003)



Code for Quality Acceptance of Electric Engineering Construction in Building (GB 50303-2002)



Technical Specification for Construction and Acceptance of Telecommunication Conduit Engineering (GB 50374-2006)

International Standards



Generic Cabling for Customer Premises (ISO/IEC 11801)



Commercial Building Telecommunications Cabling Standard (EIA/TIA 568)



Commercial Building Standard for Telecommunication Pathways and Spaces (EIA/TIA

569)



Administration Standard for Commercial Telecommunications Infrastructure (EIA/TIA

606)



Grounding and Bonding Requirements for Telecommunications in Commercial Buildings (EIA/TIA 607)



Generic Cabling Systems for Information Technology (EN 50173)



Cabling Installation for Information Technology (EN 50174)

Bending radius



The bending radius of a 1/4'' jumper, a 1/2'' softer jumper, and a 1/2'' common jumper must be longer than 35 mm, 50 mm, and 127 mm, respectively.



The bending radius of a power cable is at least three times the diameter of the cable.

Huawei PRU11WIFI User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual