Huawei Technologies PRU01B02 pRRU Multi-Mode Radio Unit User Manual Installation Guide

LampSite

Installation Guide

Issue

08

Date

2014-12-30

HUAWEI TECHNOLOGIES CO., LTD.

Issue 08 (2014-12-30)

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

LampSite

Installation Guide

About This Document

Issue 08 (2014-12-30)

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About This Document

Overview

This document describes how to install the modules and cables for the RHUB3908,

pRRU3901 indoors. It also provides checklists for hardware installation.

Product Version

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

Product Name

Solution Version

Product Version

DBS3900

 SRAN9.0 and later versions

 RAN16.0 and later versions

 eRAN7.0 and later versions

 eRAN TDD 7.0 and later

versions

V100R009C00 and later

versions

Intended Audience

This document is intended for:

 BTS installation personnel

LampSite

Installation Guide

Contents

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Contents

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

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

2 Installation Preparations ............................................................................................................. 6

2.1 Reference Documents ...................................................................................................................................... 6

2.2 Preparing Tools and Instruments ...................................................................................................................... 6

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

3 Unpacking and Checking ............................................................................................................ 9

4 Installing a BBU .......................................................................................................................... 11

5 Installing an RHUB3908 ............................................................................................................ 12

5.1 Information About the Installation ................................................................................................................. 12

5.1.1 RHUB3908 Installation Scenarios ........................................................................................................ 12

5.1.2 Installation Clearance Requirements of an RHUB3908 ........................................................................ 17

5.1.3 Installation Environment of an RHUB3908 .......................................................................................... 19

5.2 Installation Process ......................................................................................................................................... 21

5.3 Installing an RHUB3908 ................................................................................................................................ 21

5.3.1 Installing an RHUB3908 in a 19-Inch Cabinet or Rack ........................................................................ 21

5.3.2 Installing an RHUB3908 in a 19-Inch Shelf ......................................................................................... 24

5.3.3 Installing an RHUB3908 on a Wall ....................................................................................................... 27

5.4 Installing RHUB3908 Cables ......................................................................................................................... 31

5.4.1 Requirements for Cable Layout ............................................................................................................ 31

5.4.2 RHUB3908 Cable List .......................................................................................................................... 34

5.4.3 Cable Connections ................................................................................................................................ 35

5.4.4 RHUB3908 Cable Installation Process ................................................................................................. 35

5.4.5 Installing an RHUB3908 PGND Cable ................................................................................................. 36

5.4.6 Installing an Ethernet Cable .................................................................................................................. 38

5.4.7 Installing CRPI Optical Cables ............................................................................................................. 40

5.4.8 Installing an RHUB3908 Alarm Cable (Optional) ................................................................................ 42

5.4.9 Installing an RHUB3908 Power Cable ................................................................................................. 43

5.5 Checking the RHUB3908 Hardware Installation ........................................................................................... 44

5.6 Power-on Check on an RHUB3908 ............................................................................................................... 46

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6 Installing a pRRU3901................................................................................................................ 48

6.1 Information About the Installation ................................................................................................................. 49

6.1.1 pRRU3901 Product Family ................................................................................................................... 49

6.1.2 pRRU3901 Installation Scenario........................................................................................................... 49

6.1.3 Space Requirements .............................................................................................................................. 53

6.1.4 pRRU3901 Installation Environment Requirements ............................................................................. 54

6.2 Obtaining the MAC Address (Optional)......................................................................................................... 55

6.3 Installation Process ......................................................................................................................................... 56

6.4 Installing a pRRU3901 ................................................................................................................................... 57

6.4.1 pRRU3901 Installation Kits .................................................................................................................. 58

6.4.2 pRRU3901 Installed on a Wall .............................................................................................................. 59

6.4.3 pRRU3901 Installed on a Ceiling ......................................................................................................... 62

6.4.4 pRRU3901 Installed on a Pole .............................................................................................................. 66

6.4.5 pRRU3901 Installed on a Plate ............................................................................................................. 68

6.4.6 pRRU3901 Installed on a Keel ............................................................................................................. 71

6.5 Installing pRRU3901 Cables .......................................................................................................................... 74

6.5.1 Requirements for Cable Layout ............................................................................................................ 74

6.5.2 pRRU3901 Cable List ........................................................................................................................... 76

6.5.3 Cable Connections ................................................................................................................................ 76

6.5.4 Cable Connections (LTE TDD) ............................................................................................................. 79

6.5.5 pRRU3901 cable installation process ................................................................................................... 80

6.5.6 Installing an Ethernet Cable .................................................................................................................. 81

6.5.7 Installing pRRU3901 Jumpers (Optional)............................................................................................. 82

6.6 Checking the pRRU3901 Hardware Installation ............................................................................................ 84

6.7 Powering on the pRRU3901........................................................................................................................... 85

7 Installing the Extender (Optional) ........................................................................................... 87

8 Appendix ...................................................................................................................................... 90

8.1 MAC Collection Template ............................................................................................................................. 90

8.2 LampSite Engineering Label .......................................................................................................................... 91

8.3 Attaching an L-Shaped Label ......................................................................................................................... 94

8.4 Installing RF Daughter Boards on a pRRU3901 (in Capacity Expansion Scenarios) .................................... 96

LampSite

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1 Changes in LampSite Installation Guide

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1 Changes in LampSite Installation Guide

This chapter describes the changes in the LampSite Installation Guide.

08 (2015-01-15)

This is the eighth commercial release.

Compared with 07 (2014-11-15), this issue includes the following new topics:

 4 Installing a BBU

Compared with 07 (2014-11-15), this issue incorporates the following changes:

Content

Change Description

Entire document

 Changed RHUB, and pRRU to

RHUB3908, and pRRU3901,

respectively.

 Added the pRRU3901 with three

transmission ports plus no PWR port (or

the pRRU3901 AWS+PCS+WIFI for

use in North America) .

6.7 Powering on the pRRU3901

Deleted the description that the pRRU3901

supports AC/DC power supply.

Compared with 07 (2014-11-15), no information is deleted.

07 (2014-11-15)

This is the seventh commercial release.

Compared with 06 (2014-09-30), no information is added.

Compared with 06 (2014-09-30), this issue incorporates the following change:

Content

Change Description

Space Requirements

Added the requirements on the installation space

when the pRRU3901 working on the 2.6 GHz

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Content

Change Description

band and the Wi-Fi module need to process

services concurrently.

Compared with 06 (2014-09-30), this issue excludes the following topic:

 Installing RF Daughter Boards on a pRRU3901 (in Capacity Expansion Scenarios)

06 (2014-09-30)

This is the sixth commercial release.

Compared with 05 (2014-08-30), no information is added.

Compared with 05 (2014-08-30), this issue incorporates the following changes:

Content

Change Description

pRRU Installation Environment

Requirements

Changed the operating temperature of

pRRU3901s to a range from - 5°C to +

40°C.

Requirements for Cable Layout

Added the cabling requirements for Ethernet

cables.

Requirements for Cable Layout

Compared with 05 (2014-08-30), no information is deleted.

05 (2014-08-30)

This is the fifth commercial release.

Compared with 04 (2014-07-30), no information is added.

Compared with 04 (2014-07-30), this issue incorporates the following changes:

Content

Change Description

Installation Clearance Requirements of an

RHUB

Added the security precautions for the

RHUB3908 installation environment.

Requirements for Cable Layout

Installing an Ethernet Cable

Added the Ethernet cable specifications and

requirements on flame spread rating.

Installing an Ethernet Cable

Compared with 04 (2014-07-30), no information is deleted.

04 (2014-07-30)

This is the fourth commercial release.

LampSite

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1 Changes in LampSite Installation Guide

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Compared with 03 (2014-06-30), no information is added.

Compared with 03 (2014-06-30), this issue incorporates the following change:

Content

Change Description

7 Installing the Extender (Optional)

Added the descriptions about installing a

Extender on a Ceiling.

Compared with 03 (2014-06-30), no information is deleted.

03 (2014-06-30)

This is the third commercial release.

Compared with 02 (2014-05-30), this issue includes the following new topics:

 8.2 LampSite Engineering Label

 8.3 Attaching an L-Shaped Label

Compared with 02 (2014-05-30), this issue incorporates the following changes:

Content

Change Description

Cable Connections

Modified the description about cable

connections of the RHUB3908.

Installing RHUB Cables

Added the steps for attaching labels to

cables.

Installing pRRU Cables

Installing an Ethernet Cable

Added the steps for making Ethernet cables.

Installing an Ethernet Cable

Installing RF Daughter Boards on a

pRRU3901 (in Capacity Expansion

Scenarios)

Added the descriptions about the supported

block type.

Compared with 02 (2014-05-30), no information is deleted.

02 (2014-05-30)

This is the second commercial release.

Compared with 01 (2014-04-26), no information is added.

Compared with 01 (2014-04-26), this issue incorporates the following change:

Content

Change Description

Entire document

Added the descriptions about the LTE

FDD+LTE FDD mode.

LampSite

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Compared with 01 (2014-04-26), no information is deleted.

01 (2014-04-26)

This is the first commercial release.

Compared with Draft C (2014-03-26), no information is added.

Compared with Draft C (2014-03-26), this issue incorporates the following change:

Content

Change Description

Entire document

Changed the pRRU3901 name from

pRRU3901 with two Ethernet ports to

pRRU3901 with two transmission ports, and

pRRU3901 with three Ethernet ports to

pRRU3901 with three transmission ports.

Compared with Draft C (2014-03-26), no information is deleted.

Draft C (2014-03-26)

This is a draft release.

Compared with Draft B (2014-02-28), no information is added.

Compared with Draft B (2014-02-28), this issue incorporates the following changes:

Content

Change Description

Installing CRPI Optical Cables

Added the description of connecting the

CPRI cable to the TX and RX ports of the

optical module crossly.

pRRU Installation Environment

Requirements

The operating temperature of pRRU3901 is

updated.

Compared with Draft B (2014-02-28), no information is deleted.

Draft B (2014-02-28)

This is a draft release.

Compared with draft A (2013-11-30), this issue includes the following new topics:

 Obtaining the MAC Address (Optional)

 Cable Connections

 MAC Collection Template

Compared with draft A (2013-11-30), this issue incorporates the following changes:

Content

Change Description

Entire document

Added descriptions about pRRU3901s with

LampSite

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1 Changes in LampSite Installation Guide

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Content

Change Description

three transmission ports. Such pRRU3901s

support integrated Wi-Fi services.

Added the descriptions about the UMTS,

LTE FDD and UMTS+LTE FDD mode.

LampSite Installation Guide

Optimized descriptions about matching

product versions.

Installing an Ethernet Cable

Changed the cable name from

RHUB3908-pRRU3901 Ethernet cable to

Ethernet cable.

Installing an Ethernet Cable

Compared with draft A (2013-11-30), this issue excludes the following topics:

 Installing External Antennas (Optional)

 RHUB3908 Exterior

 RHUB3908 Ports and Indicators

 pRRU3901 Exterior

 pRRU3901 Ports and Indicators

Draft A (2013-11-30)

This is a draft release.

LampSite

Installation Guide

2 Installation Preparations

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2 Installation Preparations

About This Chapter

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:

2.2 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:

 LampSite Hardware Description

 Installation Reference

For details about how to install a baseband unit (BBU), see DBS3900 Installation Guide.

2.2 Preparing Tools and Instruments

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

Marker

Level

Torque screwdriver

(M4 to M6)

Diagonal pliers

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Power cable crimping tool

RJ11 crimping tool

Cable cutter

Rubber mallet

T20 torque torx screwdriver

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)

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.

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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.

LampSite

Installation Guide

3 Unpacking and Checking

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3 Unpacking and Checking

This section describes how to unpack and check the delivered equipment to ensure that the

materials are complete and intact.

Context

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.

You must power on the RHUB3908 or pRRU within 7 days after it is unpacked.

Procedure

1. Count the total number of the shipments.

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.

Step 2 Check the exterior of each packing box.

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If...

Then...

The exterior of each packing box is

intact

Go to Step 3.

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

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4 Installing a BBU

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4 Installing a BBU

This chapter describes the process of installing a BBU.

The BBU can have BBU3900 and BBU3910. Unless otherwise specified, the BBU refers to

both the BBU3900 and BBU3910 in this document.

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

LampSite

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5 Installing an RHUB3908

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5 Installing an RHUB3908

About This Chapter

This chapter describes the process of installing an RHUB3908.

5.1 Information About the Installation

This section describes the information to be learnt before RHUB3908 installation, including

the RHUB3908 installation scenarios, clearance, and installation environment.

5.2 Installation Process

The RHUB3908 installation involves installing an RHUB3908 module, installing RHUB3908

cables, checking the RHUB3908 hardware installation, and powering on the RHUB3908.

5.3 Installing an RHUB3908

An RHUB3908 can be installed in a cabinet, rack, shelf, or on a wall.

5.4 Installing RHUB3908 Cables

This section describes how to install cables for an RHUB3908.

5.5 Checking the RHUB3908 Hardware Installation

After an RHUB3908 is installed, check the installation of hardware including the devices and

related cables.

5.6 Power-on Check on an RHUB3908

This section describes the power-on check on the RHUB3908 after the RHUB3908 hardware

is installed and checked.

5.1 Information About the Installation

This section describes the information to be learnt before RHUB3908 installation, including

the RHUB3908 installation scenarios, clearance, and installation environment.

5.1.1 RHUB3908 Installation Scenarios

An RHUB3908 can be installed in a 19-inch cabinet, rack, shelf, or on a wall.

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The RHUB3908 supports that 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 RHUB3908 panel, as

shown in Figure 5-1.

Figure 5-1 Installing mounting ears in standard mode

 In reverse mode, the front of the mounting ear is 31 mm away from the RHUB3908

panel, as shown in Figure 5-2.

Figure 5-2 Installing mounting ears in reverse mode

Installing an RHUB3908 in a 19-Inch Cabinet or Rack

Installing an RHUB3908 in a 19-inch cabinet or rack: Secure the mounting ear to the

mounting bracket by using M6 screws.

 If there is no other modules installed in the 1 U space near the RHUB3908, install the

RHUB3908 directly. Otherwise, remove the modules before installing the RHUB3908.

 Before installation, you need to check the installation mode supported by the rack and

adjust the position of the mounting ear.

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Figure 5-3 and Figure 5-4 show RHUB3908s installed in a cabinet or rack, respectively.

Figure 5-3 Installing an RHUB3908 in a 19-inch cabinet or rack in standard mode

Figure 5-4 Installing an RHUB3908 in a 19-inch cabinet in reverse mode

Installing an RHUB3908 in a 19-Inch Shelf

When an RHUB3908 is installed in a 19-inch shelf, the shelf must be installed on a wall. One

shelf can house multiple RHUB3908s with 1 U space between two RHUB3908s.

Figure 5-5 and Figure 5-6 show RHUB3908s installed in a 19-inch shelf.

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Figure 5-5 RHUB3908 installed in a 19-inch shelf in standard mode

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Figure 5-6 RHUB3908 installed in a 19-inch shelf in reverse mode

Installing an RHUB3908 on a Wall

An RHUB3908 can be installed on a wall.

The wall on which an RHUB3908 is installed must meet the following requirements:

 When a single RHUB3908 is installed, the wall must have a capacity of bearing at least

four times the weight of the RHUB3908.

 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 5-7 shows an RHUB3908 installed on a wall.

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Figure 5-7 RHUB3908 installed on a wall

5.1.2 Installation Clearance Requirements of an RHUB3908

When an RHUB3908 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 RHUB3908.

 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 5-8 shows the installation clearance for the RHUB3908 installed in a 19-inch cabinet,

rack, or shelf.

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Figure 5-8 Installation clearance for an RHUB3908 installed in a 19-inch cabinet, rack, or shelf

Figure 5-9 and Figure 5-10 shows the recommended and minimum installation clearance

respectively when the RHUB3908 is installed on a wall.

Figure 5-9 Recommended installation clearance for a wall-mounted RHUB3908 (unit: mm)

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Figure 5-10 Minimum installation clearance for a wall-mounted RHUB3908 (unit: mm)

5.1.3 Installation Environment of an RHUB3908

The installation environment of an RHUB3908 involves the running environment

specifications for the RHUB3908 and other specifications.

RHUB3908 Running Environment Specifications

Table 5-1 shows the environment specifications for the RHUB3908 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 RHUB3908 cannot be blocked.

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Table 5-1 RHUB3908 environment specifications

Specifi

cations

Installation

Scenario

RHUB3908

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 RHUB3908, 1 U space is required between two RHUB3908s.

Other Running Environment Specifications

 The RHUB3908 cannot be installed at an air outlet of the heat dissipation box of an air

conditioner or other heat-generating appliances.

 The RHUB3908 cannot be installed near a strong heat source.

 The RHUB3908 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 RHUB3908 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.

 The RHUB3908 must be installed in a dry, ventilating, and dust-proof place.

 If the RHUB3908 is installed in parking areas or basements, the installation position

must be well-ventilated.

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5.2 Installation Process

The RHUB3908 installation involves installing an RHUB3908 module, installing RHUB3908

cables, checking the RHUB3908 hardware installation, and powering on the RHUB3908.

Figure 5-11 shows the RHUB3908 installation process.

Figure 5-11 RHUB3908 installation process

5.3 Installing an RHUB3908

An RHUB3908 can be installed in a cabinet, rack, shelf, or on a wall.

5.3.1 Installing an RHUB3908 in a 19-Inch Cabinet or Rack

This section describes how to install an RHUB3908 in a 19-inch cabinet.

Procedure

 The following describes how to install an RHUB3908 with mounting ears in reverse

mode:

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If necessary, request one more person for assistance.

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

push the RHUB3908 into the required position in the cabinet, as shown in Figure 5-12.

Figure 5-12 Pushing an RHUB3908 into a cabinet

2. 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 5-13.

Figure 5-13 Tightening screws

 The following describes how to install an RHUB3908 with mounting ears aligned with

the RHUB3908 panel:

If necessary, request one more person for assistance.

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1. Remove the mounting ears on both sides of the RHUB3908 by removing the four M4×8

screws, as shown in Figure 5-14.

Figure 5-14 Removing mounting ears and screws

2. 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 5-15.

The mounting ears must be aligned with the RHUB3908 panel.

Figure 5-15 Installing mounting ears in standard mode

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

push the RHUB3908 into the required position in the cabinet, as shown in Figure 5-16.

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Figure 5-16 Pushing an RHUB3908 into a cabinet

4. 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 5-17.

Figure 5-17 Tightening screws

----End

5.3.2 Installing an RHUB3908 in a 19-Inch Shelf

If a shelf houses more than one RHUB3908, 1 U space is required between two RHUB3908s.

The PSU must be installed at the bottom of the cabinet.

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Procedure

 The following describes how to install an RHUB3908 with mounting ears installed in

reverse mode:

If necessary, request one more person for assistance.

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

push the RHUB3908 into the required position in the shelf.

2. 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 5-18.

Figure 5-18 Tightening screws

 The following describes how to install an RHUB3908 with mounting ears installed in

standard mode:

If necessary, request one more person for assistance.

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

screws, as shown in Figure 5-19.

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Figure 5-19 Removing mounting ears and screws

2. 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 5-20.

The mounting ears must be aligned with the RHUB panel.

Figure 5-20 Installing mounting ears in standard mode

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

push the RHUB3908 into the required position in the cabinet, as shown in .

4. 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 5-21.

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Figure 5-21 Tightening screws

----End

5.3.3 Installing an RHUB3908 on a Wall

An RHUB3908 can be installed on a wall.

Procedure

1. The mounting ears are installed in reverse mode by default. Before installing an

RHUB3908 on a wall, modify the installation mode of the mounting ears on the

RHUB3908.

 Use a torque screwdriver or Phillips screwdriver to remove the mounting ears on both

sides of the RHUB3908 by removing the four M4×8 screws, as shown in Figure 5-22.

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Figure 5-22 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

5-23.

Figure 5-23 Installing mounting ears and screws

Step 2 Determine the position on the wall for installing the RHUB3908 based on the requirements

in the engineering blueprint and Installation Clearance Requirements of an RHUB. Place the

RHUB3908 to the position to be installed against the wall, and then mark the four anchor

points where the mounting ear screws are fastened using a marker, as shown in Figure 5-24.

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Figure 5-24 Anchor points for installing an RHUB3908 on a wall

(1) Level

(2) RHUB3908

(3) 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 5-25.

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Figure 5-25 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 RHUB3908 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 RHUB3908 to the wall, as shown in Figure 5-26.

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Figure 5-26 Installing an RHUB3908 on a wall

As shown in the preceding figure, when the RHUB3908 is placed against the wall, ensure that the

RHUB3908 panel is vertical to the ground and the PSU is on the lower part of the RHUB3908 panel.

----End

5.4 Installing RHUB3908 Cables

This section describes how to install cables for an RHUB3908.

5.4.1 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.

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General Requirements for Cable Layout

中国标准

 综合布线系统工程设计规范 GB 50311-2007

 综合布线工程验收规范（含条文说明） GB 50312-2007

 安全防范工程技术规范 GB 50348-2004

 电子信息系统机房施工及验收规范 GB 50462-2008

 智能建筑工程质量验收规范 GB 50339-2003

 建筑电气工程施工质量验收规范 GB 50303-2002

 通信管道工程施工及验收技术规范 GB 50374-2006

国际标准

 用户建筑综合布 ISO／IEC 11801

 商业建筑电信布线标准 EIA／TIA 568

 商业建筑电信布线安装标准 EIA／TIA 569

 商业建筑通信基础结构管理规范 EIA／TIA 606

 商业建筑通信接地要求 EIA／TIA 60

 信息系统通用布线标准 EN 50173

 信息系统布线安装标准 EN 50174

Bending radius

 The bending radius of a power cable or a protection ground (PGND) cable is at least

three 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.

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

installed.

Safety

 穿管/线槽采用钢管或阻燃聚氯乙烯硬质管，线槽的截面利用率应为 30％～50％，

穿管的截面利用率应为 25％～30％。

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 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 RHUB3908.

 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.

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.

 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.

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 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.

5.4.2 RHUB3908 Cable List

This section describes the connector types and connections of the RHUB3908 cables.

Table 5-2 lists RHUB3908 cables.

Table 5-2 RHUB3908 cable list

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

RHUB3908

OT terminal

(M6, 6 mm2

[0.009 in.2])

Ground terminal

on the external

ground bar

RHUB3908

Power

Supply Cable

C13 female

connector

AC power

input socket on

the

RHUB3908

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

RHUB3908

CPRI0 or

CPRI1 port on

the

RHUB3908

DLC connector

CPRI0 or CPRI1

port on the

RHUB3908

CPRI port on

the LBBP,

WBBP or

UBBP in the

BBU

FC connector,

SC connector, or

LC connector

ODF

CPRI0 or

CPRI1 port on

the

RHUB3908

FC connector,

SC connector, or

LC connector

ODF

Ethernet

Cable

RJ45 connector

CPRI_E0~CP

RI_E7 port on

the

RHUB3908

RJ45 connector

CPRI_E0~CPRI_

E1 port on the

pRRU3901

(Optional)

RHUB3908

RJ45 connector

EXT_ALM

port on the

Bare end

Alarm signal port

of the monitored

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Cable

One End

The Other End

Connector

Connected

to...

Connector

Connected to...

Alarm Cable

RHUB3908

equipment

 If one end of the CPRI cable is connected to the DLC connector, the other end connects the BBU, or

RHUB3908 through the DLC connector. If one end of the CPRI cable is connected to the ODF

adapter, the other end connects the BBU or RHUB3908 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 RHUB3908 and the pRRU3901

connected using the Ethernet cable. If the Extender is used, the Ethernet cable is divided into two

parts, one between the RHUB3908 and the Extender and the other between the Extender and the

pRRU3901.

5.4.3 Cable Connections

This section describes the cable connections for an RHUB3908.

Figure 5-27 shows the cable connections for an RHUB3908. The port of GE0, GE1 and ETH

are reserved.

Figure 5-27 Cable connections for an RHUB3908

(1) CPRI optical cable

(2) RHUB3908 alarm cable

(3) Ethernet cable

(4) RHUB3908 power cable

(5) PGND cable

-

The Extender can be used to lengthen the distance between the RHUB3908 and the pRRU3901

connected using the Ethernet cable. If the Extender is used, the Ethernet cable is divided into two parts,

one between the RHUB3908 and the Extender and the other between the Extender and the pRRU3901.

5.4.4 RHUB3908 Cable Installation Process

This section describes the process of installing RHUB3908 cables.

Figure 5-28 shows the RHUB3908 cable installation process.

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Figure 5-28 RHUB3908 cable installation process

5.4.5 Installing an RHUB3908 PGND Cable

An RHUB3908 PGND cable ensures proper grounding of an RHUB3908.

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 5-29 Exterior of a PGND cable

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

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

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 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 RHUB3908 using a PGND cable.

 When installing the PGND cable, tightly press the OT terminal in the correct direction, as

shown in Figure 5-30.

Figure 5-30 Correct direction of an OT terminal for the PGND cable

Procedure

1. Route the PGND cable by referring to 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 RHUB3908 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

RHUB3908 panel, as shown in Figure 5-31.

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Figure 5-31 Installing an RHUB3908 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 Requirements

for Cable Layout.

2. Label the installed cable. For details, see section 8.3 Attaching an L-Shaped Label.

5.4.6 Installing an Ethernet Cable

This section describes how to install an Ethernet cable. A pRRU3901 can have two

transmission ports or three transmission ports, requiring the same installation operations. This

section uses the pRRU3901 with three transmission ports as an example.

Prerequisites

 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.

 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. With the internal PoE module providing power, the maximum length of an

Ethernet cable is 100 m. With the Extender, the distance of the pRRU3901 and

RHUB3908 can be extended by the Extender up to a total distance of 200 m.

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 RHUB3908 and a pRRU.

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Using the CPRI_E1 port on the pRRU3901 has the same Ethernet cable connection to the

RHUB3908 as using the CPRI_E0 port. The following section describes the connection using

the CPRI_E0 port.

Procedure

1. Make the Ethernet 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 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 Remove the dustproof cap of the CPRI_E0 port on the pRRU3901.

Step 3 Connect the RJ45 connector at one end of the Ethernet cable to the CPRI_E0 port on the

pRRU3901 panel.

Step 4 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

RHUB3908 and the Extender and the other between the Extender and the pRRU3901.

Step 5 Connect the RJ45 connector at the other end of the Ethernet cable to any port ranging from

CPRI_E0 to CPRI_E7 on the RHUB3908 panel based on the engineering design, as shown in

Figure 5-32.

Figure 5-32 Install an Ethernet cable between an RHUB3908 and a pRRU3901

(1) Ethernet cable

(2) CPRI_E0 port on the pRRU3901

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The pRRU3901 can have two transmission ports plus PWR port or three transmission ports (plus PWR

port or no PWR port). The Ethernet cable connection between the pRRU3901 in any appearance and the

RHUB3908 is similar. This section uses the pRRU3901 with three transmission ports plus no PWR port

as an example.

----End

Follow-up Procedure

1. Route the cable, and then use a cable tie to bind the cable. For details, see 5.4.1

Requirements for Cable Layout.

2. Label the installed cable. For details, see section 8.3 Attaching an L-Shaped Label.

5.4.7 Installing CRPI Optical Cables

Optical fibers can be used to interconnect BBU and RHUB3908s, or cascade RHUB3908s.

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 Typical Networking in

LampSite Technical Description and CPRI Optical Fiber in LampSite Hardware

Description.

 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.

Procedure

1. Install an optical module, as shown in Figure 5-33 and Figure 5-34.

1. Remove the dust-proof cap from the CPRI port on the RHUB3908 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 RHUB3908, BBU or ODF.

5. Raise the puller of the optical module.

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Figure 5-33 Removing the dust-proof cap from a port

Figure 5-34 Installing an optical module

Step 2 Install a CPRI optical cable, as shown in Figure 5-35.

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

2. Install the optical cables by referring to Table 5-3.

Table 5-3 CPRI optical cable connections

One End

The Other End

Connect

or

Connected to

Connector

Connected to

DLC

connecto

r

BBU3900/LBBP&WBBP&

UBBP/CPRI port

DLC connector

CPRI0 or CPRI1 port on

the RHUB3908

CPRI0 or CPRI1 port on the

RHUB3908

CPRI0 or CPRI1 port on

the RHUB3908

BBU3900/LBBP&WBBP&

UBBP/CPRI port

FC, SC, or LC

connector

ODF

CPRI0 or CPRI1 port on the

RHUB3908

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 If one end of the CPRI cable is connected to the DLC connector, the other end connects the BBU or

RHUB3908 through the DLC connector. If one end of the CPRI cable is connected to the ODF

adapter, the other end connects the BBU or RHUB3908 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 5-35 shows how to install a CPRI optical cable for

connecting the BBU and RHUB3908s.

Figure 5-35 Installing an CRPI optical cable

----End

Follow-up Procedure

1. Route the cable, and then use a cable tie to bind the cable. For details, see 5.4.1

Requirements for Cable Layout.

2. Label the installed cable. For details, see section 8.3 Attaching an L-Shaped Label.

5.4.8 Installing an RHUB3908 Alarm Cable (Optional)

An RHUB3908 alarm cable transmits dry node alarm signals.

Prerequisites

Connectors for an alarm cable are prepared.

Context

Figure 5-36 shows the exterior of an RHUB3908 alarm cable. RHUB Cable List shows the

installation position on both ends of the RHUB3908 cable.

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Figure 5-36 RHUB3908 alarm cable

Procedure

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

RHUB3908.

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 5.4.1

Requirements for Cable Layout.

2. Label the installed cable. For details, see section 8.3 Attaching an L-Shaped Label.

5.4.9 Installing an RHUB3908 Power Cable

The RHUB3908 power cable provides 110 V AC/220 V AC power supply for the RHUB3908.

Procedure

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

Step 2 Connect the power connector on the X1 end to the AC power input port on the RHUB3908

panel, as shown in Figure 5-37.

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

Figure 5-37.

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Figure 5-37 Installing an RHUB3908 power cable

----End

Follow-up Procedure

1. Route the cable, and then use a cable tie to bind the cable. For details, see 5.4.1

Requirements for Cable Layout.

2. Label the installed cable. For details, see section 8.3 Attaching an L-Shaped Label.

5.5 Checking the RHUB3908 Hardware Installation

After an RHUB3908 is installed, check the installation of hardware including the devices and

related cables.

Table 5-4 lists the hardware installation checking items.

Table 5-4 Hardware installation checking list

No.

Item

1

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

space requirement.

2

Ensure that the RHUB3908 is properly installed.

3

The surface of the RHUB3908 is neat and clean. The external paint is intact.

The labels, tags, and nameplates are correct, legible, and complete.

Table 5-5 lists the checking list of the power cable and PGND cable connections.

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Table 5-5 Checklist for power cable and PGND cable connections

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.

Table 5-6 lists the check items of the signal cable connection.

Table 5-6 Checklist for the signal cable connection

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 RHUB3908 panel is less

than 70 mm.

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Table 5-7 lists the checking items for other cable connections.

Table 5-7 Checklist for other cable connections

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.

5.6 Power-on Check on an RHUB3908

This section describes the power-on check on the RHUB3908 after the RHUB3908 hardware

is installed and checked.

Context

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.

Procedure

1. Measure the RHUB3908 earth resistance.

If...

Then...

The RHUB3908 earth resistance is less

than 10 ohms

Go to Step 2.

The RHUB3908 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.

Step 2 Measure the voltage of the RHUB3908.

If...

Then...

The external power supply ranges from

100 V AC to 240 V AC

Go to Step 3.

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If...

Then...

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.

Step 3 Power on the RHUB3908. Wait 3 to 5 minutes, check the status of the RUN indicator of the

RHUB3908 after the RHUB3908 runs properly.

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 RHUB3908, 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 RHUB3908, and check the

power input again. Rectify the board faulty

and power on the RHUB3908 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 RHUB3908 if the uploading

is not finished in 5 minutes, and check

whether the configuration file is correct.

Power on the RHUB3908 again after the

fault is rectified.

----End

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6 Installing a pRRU3901

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.

The pRRU3901 with three transmission ports plus no PWR port is named the pRRU3901

AWS+PCS+WIFI in North Americain.

6.1 Information About the Installation

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.

6.2 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.

6.3 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.

6.4 Installing a pRRU3901

This section describes the pRRU3901 installation process. A pRRU3901 can be installed on a

wall, ceiling, indoor metal pole, or keel.

6.5 Installing pRRU3901 Cables

This section describes the procedure of installing the pRRU3901 cables.

6.6 Checking the pRRU3901 Hardware Installation

pRRU3901 hardware installation checking includes hardware and cable installation checking.

6.7 Powering on the pRRU3901

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This section describes the power-on check on the pRRU3901 after the pRRU3901 hardware is

installed and checked.

6.1 Information About the Installation

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.

6.1.1 pRRU3901 Product Family

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

Table 6-1 lists the pRRU3901 product family.

Table 6-1 pRRU3901 product family

Categor

y

Equipment

Optional

Item

Quantity

Function

Main

equipmen

t

pRRU3901

Mandatory

1

Processes the radio frequency

signals.

External

antenna

Optional

2

Provides external antennas

for the pRRU3901.

NOTE

Configure two external antennas

for each RF daughter board.

Auxiliary

device

Mounting kits

Mandatory

1

Supports the pRRU3901

installation on a wall, pole,

ceiling, or keel. The

mounting kits vary with the

pRRU3901 installation mode.

Extender

Optional

1

Extends the distance between

the pRRU3901 and

RHUB3908.

6.1.2 pRRU3901 Installation Scenario

The pRRU3901 can be installed on a wall, ceiling, pole, or keel. The following table describes

the installation in different scenarios.

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Installing a pRRU3901 on a wall

 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 6-2.

Table 6-2 Wall-mounted suggestion

Installation

Mode

Requirements

Mounting Brackets

Installation

Diagram

Installing the

pRRU3901 on

a wall by

drilling holes

For details, see

pRRU

Installed 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

pRRU3901 on

a wall using a

V clamp

through an

attachment

plate

For details, see

pRRU

Installed 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 the bolt

length (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

pRRU3901. For

example, EPS

walls, MDF

walls, or walls

cannot be drilled.

 The wall is too

thick to drill, and

the pRRU3901

The plate is prepared by

customers.

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Installation

Mode

Requirements

Mounting Brackets

Installation

Diagram

cannot be

installed on a

wall using a V

clamp through an

attachment plate.

Installing a pRRU3901 on a ceiling

When a pRRU3901 is installed on a ceiling, installation modes vary with the quality of the

ceiling, as shown in Table 6-3.

Table 6-3 Ceiling-mounted suggestion

Installation

Mode

Requirements

Mounting Brackets

Installation

Diagram

Installing the

pRRU3901 on

a ceiling by

drilling holes

For details, see

pRRU

Installed 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

pRRU

Installed 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 the bolt

length (80 mm).

1. Plate

2. V clamp

3. Bolt (M6X80)

Installing the

pRRU3901 on

a pole

For details, see

A pole under the

ceiling can bear a

load at least four

times the weight of

For details, see Table

6-4.

For details, see Table

6-4.

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Installation

Mode

Requirements

Mounting Brackets

Installation

Diagram

pRRU

Installed on a

Pole.

the pRRU3901.

Installing the

pRRU3901 on

a keel

For details, see

pRRU

Installed on a

Keel.

A keel under the

ceiling can bear a

load at least four

times the weight of

the pRRU3901.

For details, see Table

6-5.

For details, see Table

6-5.

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 6-4.

Table 6-4 Pole-mounted suggestion

Installation

Mode

Requirements

Mounting Brackets

Installation

Diagram

Installing the

pRRU3901 on

a pole

For details, see

pRRU

Installed 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

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.

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Table 6-5 Keel-mounted installation suggestion

Installation

Mode

Requirements

Mounting Brackets

Installation

Diagram

Installing the

pRRU3901 on

a keel

For details, see

pRRU

Installed 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

pRRU3901 installed

on a U-shaped keel.

6.1.3 Space Requirements

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 6-1 shows the recommended space requirements of the pRRU3901 when the external

antenna is required.

Figure 6-1 Recommended space requirements of the pRRU3901

When the external antenna is required, 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.

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 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 20 mm on the back of the pRRU3901 is reserved for ventilation.

Figure 6-2 shows the minimum space requirements of the pRRU3901 when the external

antenna is not required.

Figure 6-2 Minimum space requirements of the pRRU3901

When the external antenna is not required, the minimum space for installing a single

pRRU3901 is described as follows:

 At least 50 mm above the pRRU3901 is reserved for maintenance.

 At least 150 mm under the pRRU3901 is reserved for cabling.

 At least 50 mm on the left of the pRRU3901 is reserved for maintenance.

 At least 50 mm on the right of the pRRU3901 is reserved for maintenance.

 At least 50 mm in front of the pRRU3901 for maintenance.

 At least 20 mm on the back of the pRRU3901 is reserved for ventilation.

6.1.4 pRRU3901 Installation Environment Requirements

The installation environment of a pRRU3901 involves the running environment specifications

for the pRRU3901 and other specifications.

pRRU3901 Running Environment Specifications

Table 6-6 shows the environment specifications for the pRRU3901 installed indoors.

Table 6-6 pRRU3901 environment specifications

Specificat

ions

Condition

Remarks

Operating

temperatur

- 5°C to + 40°C

-

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Specificat

ions

Condition

Remarks

e

Relative

humidity

5% RH to 95% RH

-

Altitude

- 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.

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.

 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.

6.2 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

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

them secure, as shown in Figure 6-3.

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

 Before removing the backup WIFI MAC label, photograph it.

Figure 6-3 Removing backup WIFI MAC label

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

commissioning personnel.

----End

6.3 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 6-4 shows the pRRU3901 installation process.

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Figure 6-4 pRRU3901 installation process

6.4 Installing a pRRU3901

This section describes the pRRU3901 installation process. A pRRU3901 can be installed on a

wall, ceiling, indoor metal pole, or keel.

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 The pRRU3901 cannot be grounded. If the pRRU3901 is grounded but the RHUB3908 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.

6.4.1 pRRU3901 Installation Kits

This section describes the pRRU3901 installation kits.

Figure 6-5 shows the exterior of the pRRU3901 installation kits.

Figure 6-5 pRRU3901 installation kits

(1) V clamp

(2) Plate

(3) Screw (M6x50)

(4) Plastic expansion sleeve

(5) Bolt (M6x80)

(6) Flat washer

The following figure shows the specifications of the installation plate.

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Figure 6-6 Plate specifications

6.4.2 pRRU3901 Installed on a Wall

If the wall indoors has sufficient load bearing capacity and space, the pRRU3901 is

recommended to install on a wall. If the wall cannot bear the capacity, choose an installation

mode based on site requirements.

Context

This section only describes the procedure of installing the pRRU3901 on a wall without any

other auxiliary devices. The installation procedure of other wall-mounted modes is similar to

that of installing the pRRU3901 on a wall without auxiliary devices.

Procedure

1. Determine the position for installing the pRRU3901 based on the construction blueprint

and the space requirements.

For pRRU3901 installation space requirements, see Space Requirements.

Step 2 Place the plate in the installation position against the wall. Then, level the plate and mark the

two anchor points using a marker, as shown in Figure 6-7.

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Figure 6-7 Anchor points of the pRRU3901 installation kits (unit: mm)

(1) Wall

(2) Plate

(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 a φ 8 bit to drill holes at the marked anchor points as shown in as

shown in Figure 6-8. Use the 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 push the two plastic expansion sleeve into the

holes.

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Figure 6-8 Drilling holes and installing expansion bolts

Step 4 Lead the M6x50 screw through the washer, and then through the drilling holes of the plate to

the plastic expansion sleeve, and tighten the screw to a torque of 5 N•m, as shown in Figure

6-9.

Figure 6-9 Installing the plate

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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 installation kits, as shown in Figure 6-10. If the

hooks are properly installed, a slight clack can be heard.

It is recommended that you observe the installation from one side of the pRRU3901 when inserting

hooks into the kits.

Figure 6-10 Installing the pRRU3901 on a plate

----End

6.4.3 pRRU3901 Installed on a Ceiling

This section describes the procedure of installing a pRRU3901 on the ceiling, such as the

concrete ceiling, when the ceiling has sufficient load bearing capacity and installation space.

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Context

If the pRRU3901 is installed on the 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.

Procedure

1. Determine the position for installing the pRRU3901 based on the construction blueprint

and the space requirements.

For pRRU3901 installation space requirements, see Space Requirements.

Step 2 Place the plate in the installation position against the ceiling. Then, level the plate and mark

the two anchor points using a marker, as shown in Figure 6-11.

Figure 6-11 Anchor points of the pRRU3901 installation kits (unit: mm)

(1) Ceiling

(2) Plate

(3) Anchor point of the bolt

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

drilling holes.

Step 3 Use a hammer drill with a φ 8 bit to drill holes at the marked anchor points as shown in as

shown in Figure 6-12. Use the 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 push the two plastic expansion sleeve into the

holes.

Figure 6-12 Drilling holes and installing expansion bolts

Step 4 Lead the M6x50 screw through the washer, and then through the drilling holes of the plate to

the plastic expansion sleeve, and use a torque screwdriver to tighten the screw with a torque

of 5 N•m, as shown in Figure 6-13.

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Figure 6-13 Installing the plate

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 installation kits, as shown in Figure 6-14. If the

hooks are properly installed, a slight clack can be heard.

It is recommended that you observe the installation from one side of the pRRU3901 when inserting

hooks into the kits.

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Figure 6-14 Installing a pRRU3901

----End

6.4.4 pRRU3901 Installed on a Pole

A pRRU3901 can be installed on a metal pole indoors.

Procedure

1. Determine the position for installing the pRRU3901 based on the construction blueprint

and the space requirements.

For pRRU3901 installation space requirements, see Space Requirements.

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

installation plate, and bolts to install the pRRU3901 on the pole. Lead the M6x80 bolt through

the plate, and tighten the bolt to a torque of 5 N•m, as shown in Figure 6-15.

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Figure 6-15 Securing the pRRU3901 installation kits on the metal pole

If the diameter of the pole is larger than 70 mm, use the hose clamp to install the plate on the

pole. The hose clamp is prepared by customers. Tighten the bolt with a torque of 5 N•m, as

shown in Figure 6-16.

Figure 6-16 Securing the pRRU3901 installation kits on the metal pole

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Step 3 Fit the four hooks of the pRRU3901 into the installation kits, as shown in Figure 6-17. If the

hooks are properly installed, a slight clack can be heard.

It is recommended that you observe the installation from one side of the pRRU3901 when inserting

hooks into the kits.

Figure 6-17 Installing a pRRU3901

----End

6.4.5 pRRU3901 Installed on a Plate

If the plate on the ceiling has sufficient load bearing capacity and space installation, the

pRRU3901 can be installed on the plate of the ceiling indoors.

Procedure

1. Determine the position for installing the pRRU3901 based on the construction blueprint

and the space requirements.

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For pRRU3901 installation space requirements, see Space Requirements.

Step 2 Place the plate in the installation position against the wall. Then, level the plate and mark the

two anchor points using a marker, as shown in Figure 6-18.

Figure 6-18 Anchor points of the pRRU3901 installation kits (unit: mm)

(1) Panel

(2) Plate

(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 bit 8 to drill holes at the anchor points.

Step 4 Lead the bolt M6x80 through the panel and daughter board, and tighten the torque

screwdriver to a torque of 5 N•m, as shown in Figure 6-19.

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Figure 6-19 Installing the pRRU3901 installation kits

Step 5 Fit the four hooks of the pRRU3901 into the installation kits, as shown in Figure 6-20. If the

hooks are properly installed, a slight clack can be heard.

It is recommended that you observe the installation from one side of the pRRU3901 when inserting

hooks into the kits.

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Figure 6-20 Installing a pRRU3901

----End

6.4.6 pRRU3901 Installed on a Keel

If the ceiling cover cannot bear the pRRU3901, the pRRU3901 can be installed on the keel of

a ceiling.

Context

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

pRRU3901.

 The installation kits 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 must 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

1. Determine the position for installing the pRRU3901 based on the construction blueprint

and the space requirements.

For pRRU3901 installation space requirements, see Space Requirements.

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Step 2 Lead the V clamp on across the keel, and mark the projective position on the cover with a

marker, as shown in Figure 6-21.

Figure 6-21 Anchor points on a 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

Ф12.

Step 4 Lead the bolt M6x80 through the installation plate and ceiling cover, and then socket to

tighten the bolt to a torque of 5 N•m, as shown in Figure 6-22.

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Figure 6-22 Installing the pRRU3901 installation kits

Step 5 Fit the four hooks of the pRRU3901 into the installation kits, as shown in Figure 6-23. If the

hooks are properly installed, a slight clack can be heard.

It is recommended that you observe the installation from one side of the pRRU3901 when inserting

hooks into the kits.

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Figure 6-23 Installing a pRRU3901

----End

6.5 Installing pRRU3901 Cables

This section describes the procedure of installing the pRRU3901 cables.

6.5.1 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

中国标准

 综合布线系统工程设计规范 GB 50311-2007

 综合布线工程验收规范（含条文说明） GB 50312-2007

 安全防范工程技术规范 GB 50348-2004

 电子信息系统机房施工及验收规范 GB 50462-2008

 智能建筑工程质量验收规范 GB 50339-2003

 建筑电气工程施工质量验收规范 GB 50303-2002

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 通信管道工程施工及验收技术规范 GB 50374-2006

国际标准

 用户建筑综合布 ISO／IEC 11801

 商业建筑电信布线标准 EIA／TIA 568

 商业建筑电信布线安装标准 EIA／TIA 569

 商业建筑通信基础结构管理规范 EIA／TIA 606

 商业建筑通信接地要求 EIA／TIA 60

 信息系统通用布线标准 EN 50173

 信息系统布线安装标准 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.

 The bending radius of a signal cable must be at least five times of 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.

 The cables are bound tightly and neatly and the sheaths of the cables 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 before the extra length is cut off. All cut surfaces are without sharp

edges.

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

installed.

Safety

 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.

 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.

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6.5.2 pRRU3901 Cable List

This section describes pRRU3901 cable connections.

Table 6-7 lists pRRU3901 cables.

Table 6-7 List of pRRU3901 cables

Cable

One End

The Other End

Connector

Connected

to ...

Connector

Connected to ...

Ethernet

Cable

RJ45 connector

RHUB3908/C

PRI_E0~CPRI

_E7 port

RJ45 connector

pRRU3901/CPRI

_E0~CPRI_E1

port

RJ45 connector

AC or

Transmission

port

RJ45 connector

pRRU3901/GE

port

(Optional)

pRRU3901

RF Jumper

SMA straight

male connector

External

antenna

TX/RX RF

port on the

pRRU3901

Based on the

port model of

the antenna

system.

Antenna system

 The Extender can be used to lengthen the distance between the RHUB3908 and the pRRU3901

connected using the Ethernet cable. If the Extender is used, the Ethernet cable is divided into two

parts, one between the RHUB3908 and the Extender and the other between the Extender and the

pRRU3901.

 The Ethernet cable used for connecting the GE port on the pRRU3901 to the AC transmission port is

required only when the pRRU3901 have three transmission ports and is configured with the Wi-Fi

daughter board.

6.5.3 Cable Connections

This section describes the cable connections for a single pRRU3901 and multiple pRRU3901s

in UMTS, LTE FDD, UMTS+LTE FDD, LTE FDD+LTE FDD mode.

Before installing the pRRU3901 cables, you must be aware of the following information:

 The pRRU3901 can obtain power supply through the power over Ethernet (PoE).

 For external antennas corresponding to RF daughter board 1, the TX port and RX port

are ANT0 and ANT1, respectively. For external antennas corresponding to RF daughter

board 2, the TX port and RX port are ANT2 and ANT3, respectively. For external

antennas corresponding to RF daughter board 3, the TX port and RX port are ANT4 and

ANT5, respectively.

 The external antenna system is optional, and the pRRU3901 jumpers are not delivered.

By default, the pRRU3901s are configured with built-in antennas. If the external antenna

system is connected, the antenna system automatically switches to the external one. One

end of the pRRU3901 RF jumper is the SMA male connector, which is connected to the

external antenna TX/RX RF port on the pRRU3901. The other end of the pRRU3901 RF

jumper is the type N male connector, which is connected to the antenna system. For the

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standard of the pRRU3901 RF jumper, see (Optional) pRRU3901 RF Jumper of the

LampSite Hardware Description.

Figure 6-24 shows the cable connection when the pRRU3901 is configured with only one RF

Daughter Board.

Figure 6-24 pRRU3901 cable connection (1)

(1) Ethernet cable

(2) RF jumper

 The Extender can be used to lengthen the distance between the RHUB3908 and the pRRU3901

connected using the Ethernet cable. If the Extender is used, the Ethernet cable is divided into two

parts, one between the RHUB3908 and the Extender and the other between the Extender and the

pRRU3901.

 When two Ethernet cables are used to transmit CPRI signals, connect one end of the cables to the

CPRI_E0 and CPRI_E1 ports on the pRRU3901 panel and the other end to any two ports of

CPRI_E0 to CPRI_E7 on the RHUB3908 panel. This document describes signal transmission using

one Ethernet cable as an example.

Figure 6-25 shows the cable connection when the pRRU3901 is configured with two RF

Daughter Boards.

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Figure 6-25 pRRU3901 cable connection (2)

(1) Ethernet cable

(2) RF jumper

 The Extender can be used to lengthen the distance between the RHUB3908 and the pRRU3901

connected using the Ethernet cable. If the Extender is used, the Ethernet cable is divided into two

parts, one between the RHUB3908 and the Extender and the other between the Extender and the

pRRU3901.

 When two Ethernet cables are used to transmit CPRI signals, connect one end of the cables to the

CPRI_E0 and CPRI_E1 ports on the pRRU3901 panel and the other end to any two ports of

CPRI_E0 to CPRI_E7 on the RHUB3908 panel. This document describes signal transmission using

one Ethernet cable as an example.

Figure 6-26 shows the cable connection when the pRRU3901 is configured with two RF

Daughter Boards and one Wi-Fi daughter board.

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Figure 6-26 pRRU3901 cable connection (3)

(1) Ethernet cable

(2) RF jumper

 The Extender can be used to lengthen the distance between the RHUB3908 and the pRRU3901

connected using the Ethernet cable. If the Extender is used, the Ethernet cable is divided into two

parts, one between the RHUB3908 and the Extender and the other between the Extender and the

pRRU3901.

 When two Ethernet cables are used to transmit CPRI signals, connect one end of the cables to the

CPRI_E0 and CPRI_E1 ports on the pRRU3901 panel and the other end to any two ports of

CPRI_E0 to CPRI_E7 on the RHUB3908 panel. This document describes signal transmission using

one Ethernet cable as an example.

6.5.4 Cable Connections (LTE TDD)

This section describes the cable connections for a single pRRU3901 and multiple pRRU3901s

in LTE TDD mode.

Before installing the pRRU3901 cables, you must be aware of the following information:

 The pRRU3901 can obtain power supply through the power over Ethernet (PoE).

 For external antennas corresponding to RF daughter board 1, the TX port and RX port

are ANT0 and ANT1, respectively. For external antennas corresponding to RF daughter

board 2, the TX port and RX port are ANT2 and ANT3, respectively. For external

antennas corresponding to RF daughter board 3, the TX port and RX port are ANT4 and

ANT5, respectively.

 The external antenna system is optional, and the pRRU3901 jumpers are not delivered.

By default, the pRRU3901s are configured with built-in antennas. If the external antenna

system is connected, the antenna system automatically switches to the external one. One

end of the pRRU3901 RF jumper is the SMA male connector, which is connected to the

external antenna TX/RX RF port on the pRRU3901. The other end of the pRRU3901 RF

jumper is the type N male connector, which is connected to the antenna system. For the

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standard of the pRRU3901 RF jumper, please see (Optional) pRRU RF Jumper of the

LampSite Hardware Description.

Figure 6-27 shows the cable connection when the pRRU3901 is configured with only one RF

Daughter Board.

Figure 6-27 pRRU3901 cable connection (1)

(1) Ethernet cable

(2) RF jumper

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.

6.5.5 pRRU3901 cable installation process

This section describes the process of installing pRRU3901 cables.

Figure 6-28 shows the process of installing pRRU3901 cables.

Figure 6-28 pRRU3901 cable installation process

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6.5.6 Installing an Ethernet Cable

This section describes how to install an Ethernet cable.

Prerequisites

 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.

 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. With the internal PoE module providing power, the maximum length of an

Ethernet cable is 100 m. With the Extender, the distance of the pRRU3901 and

RHUB3908 can be extended by the Extender up to a total distance of 200 m.

Context

The Ethernet cable has the following functions:

 Provides power supply for the pRRU3901 when the cable connects the CPRI_E0 port on

the pRRU3901 to the RHUB.

 Transmits CPRI signals between an RHUB3908 and a pRRU3901.

 Provides Wi-Fi services for the pRRU3901 when the cable connects the GE port on the

pRRU3901 with three transmission ports to the AC.

Using the CPRI_E1 port on the pRRU3901 has the same Ethernet cable connection to the

RHUB3908 as using the CPRI_E0 port. The following section describes the connection using

the CPRI_E0 port.

Procedure

1. Make the Ethernet 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 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 Install an Ethernet cable between an RHUB3908 and a pRRU3901.

1. Remove the dustproof cap of the CPRI_E0 port on the pRRU3901.

2. Connect the RJ45 connector at one end of the Ethernet cable to the CPRI_E0 port on the

pRRU3901 panel.

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.

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4. Connect the RJ45 connector at the other end of the Ethernet cable to any port ranging

from CPRI_E0 to CPRI_E7 on the RHUB3908 panel based on the engineering design, as

shown in Figure 6-29.

Step 3 Optional: Install the Ethernet cable between the pRRU3901 and the AC. This operation is

required when the pRRU3901 with three transmission ports is configured with a Wi-Fi

daughter board.

1. Remove the dustproof cap of the GE port on the pRRU3901.

2. Connect the RJ45 connector at one end of the Ethernet cable to the GE port on the

pRRU3901 panel.

3. Connect the RJ45 connector at the other end of the Ethernet cable to the transmission

port of the AC based on the engineering design, as shown in Figure 6-29.

Figure 6-29 Installing an Ethernet cable

(1) Ethernet cable

(2) GE port on the pRRU3901

(3) CPRI_E0 port on the pRRU3901

The pRRU3901 can have two transmission ports plus one PWR port or three transmission ports (plus

one PWR port or no PWR port), requiring the same installation operations. This section uses the

pRRU3901 with three transmission ports no PWR port as an example.

----End

Follow-up Procedure

1. Route the cable, and then use a cable tie to bind the cable. For details, see 6.5.1

Requirements for Cable Layout.

2. Label the installed cable. For details, see section 8.3 Attaching an L-Shaped Label.

6.5.7 Installing pRRU3901 Jumpers (Optional)

pRRU3901 jumpers transmit radio frequency signals. One end of the jumper is the SMA

straight male connector, and the other end is the type N connector.

Context

 If the RF jumper is provided by the customer, the jumper must not be lower than the

RG316 specifications. In addition, the jumpers can be used after they are checked by

Huawei engineers.

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 pRRU3901s can be connected to external whip antennas or external remote antennas

(through pRRU3901 RF jumpers). Whip antennas are delivered optionally. RF jumpers

are not delivered.

Procedure

1. Expose the SMA female connector by removing the pRRU3901 antenna housing, as

shown in Figure 6-30.

Figure 6-30 Removing the pRRU3901 antenna housing

Step 2 Use a torque wrench with a torque of 0.6 N•m to connect the SMA straight male connector on

a jumper to the ANT port on the pRRU3901 panel.

Tighten it with hands, and then use a torque wrench to tighten it with a rotational speed of less

than or equal to 2.4 rpm to tighten it.

Step 3 Connect the type N female connector of the jumper to the type N male connector of the RF

feeder connected to the built-in antenna.

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Tighten the feeder close to the type N connector to ensure that the jumper is not tightened. In

this way, the connectors on both ends of a jumper are not affected by the external force.

Figure 6-31 Installing jumpers between the pRRU3901 and external antennas

----End

Follow-up Procedure

1. Route the cable, and then use a cable tie to bind the cable. For details, see 6.5.1

Requirements for Cable Layout.

2. Label the installed cable. For details, see section 8.3 Attaching an L-Shaped Label.

6.6 Checking the pRRU3901 Hardware Installation

pRRU3901 hardware installation checking includes hardware and cable installation checking.

Table 6-8 lists the hardware installation checking items.

Table 6-8 Hardware installation checking list

No.

Item

1

Ensure that the pRRU3901 is not grouned.

2

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

space requirement.

3

Ensure that the pRRU3901 is properly installed.

4

The surface of the pRRU3901 is neat and clean. The external paint is intact.

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No.

Item

The labels, tags, and nameplates are correct, legible, and complete.

Table 6-9 lists the check items of the signal cable connection.

Table 6-9 Checklist for the signal cable connection

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.

Table 6-10 lists the checking items for other cable connections.

Table 6-10 Checklist for other cable connections

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.

6.7 Powering on the pRRU3901

This section describes the power-on check on the pRRU3901 after the pRRU3901 hardware is

installed and checked.

Procedure

1. Power on the pRRU3901.

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The pRRU3901 can be powered in PoE mode. The RHUB3908 adopts the PoE power supply

to provide power for the pRRU3901 over the CPRI_E0 port.

Step 2 Power on the pRRU3901. Wait 3 to 5 minutes, check the status of the RUN indicator on the

pRRU3901.

If the RUN Indicator...

Because...

Then...

Steady on

There is power input, but the

board is faulty.

Power off the power supply,

rectify the fault, and power on

the pRRU3901.

Steady off

There is no power input, or an

alarm is reported on the

board.

Power off the power supply

and check the power input. If

no fault is found after the

pRRU3901 is powered off,

clear the fault on the board,

and power on the pRRU3901.

On for 1s and off for 1s

The device works properly.

End this operation.

On for 0.125s and off for

0.125s

The software of the board is

loading.

Wait five minutes for the

software to be successfully

loaded. If the software is

loading five minutes later,

shut off the power supply.

Check whether the data

configuration file is correct.

After the fault is rectify,

power on the pRRU3901

again.

----End

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7 Installing the Extender (Optional)

This section describes the Extender installation process.

Context

When an RHUB3908 and a pRRU need extended install, use extender. With the Extender, the

distance of the pRRU and RHUB3908 can be extended by the Extender up to a total distance

of 200 m.

The Extender can be installed on a wall or ceiling in the same mode. This section describes

wall-mounted installation as an example.

Only space above and under the Extender is required to be reserved when installing the

Extender. The recommended space for installing the Extender is described as follows:

 At least 150 mm above the Extender is reserved for cabling.

 At least 150 mm under the Extender is reserved for cabling.

Procedure

1. Use a marker to mark the two anchor points according to inter-hole spacing, as shown in

Figure 7-1.

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Figure 7-1 Marking anchor points

Step 2 Drill holes at the anchor points, and install expansion bolt assemblies, as shown in Figure 7-2.

The diameter of the hole is 6 mm, and the depth is 25 mm to 30 mm.

Figure 7-2 Drilling holes and installing expansion bolts

Step 3 Place the Extender in the corresponding position and use an M4 Phillips screwdriver to

tighten the screws to 1.4 N•m, as shown in Figure 7-3.

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Figure 7-3 Installing Extender

----End

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8 Appendix

About This Chapter

This chapter describes reference information during installation.

8.1 MAC Collection Template

This section describes the MAC collection template for a pRRU3901 with three transmission

ports.

8.2 LampSite Engineering Label

This section describes the content and presents the exterior of LampSite engineering labels.

8.3 Attaching an L-Shaped Label

This section describes the procedure and precautions to be taken for attaching an L-shaped

label.

8.4 Installing RF Daughter Boards on a pRRU3901 (in Capacity Expansion Scenarios)

This section describes the procedures for installing RF daughter boards on a pRRU3901.

8.1 MAC Collection Template

This section describes the MAC collection template for a pRRU3901 with three transmission

ports.

The MAC collection template is used to record the installation position, MAC address of the

site at the initial installation stage to facilitate subsequent commissioning and maintenance.

Table 8-1 shows the MAC collection template.

Table 8-1 MAC collection template

No.

Site

Number

Site Name

WIFI MAC

Location Information

Sampl

e

01

pRRU3901

xx floor, xx building, xx

mansion

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No.

Site

Number

Site Name

WIFI MAC

Location Information

Note: The MAC collection template is essential to the engineering stage and

subsequent maintenance, especially when multiple devices are installed at a short

distance. This is because the template defines the radio network to access. Maintain

this template with caution.

8.2 LampSite Engineering Label

This section describes the content and presents the exterior of LampSite engineering labels.

Label Content

The LampSite engineering labels include the RHUB3908 power label, RHUB3908 ground

label, RHUB3908 alarm or monitoring label, RHUB3908 optical transmission label, and

RHUB3908 network transmission label, the pRRU3901 power label, pRRU3901 network

transmission label, pRRU3901 antenna label. The engineering labels are used for LampSite

units RHUB3908 and pRRU3901 for indoor scenarios.

By default, blank labels are delivered for LampSite and must be filled in onsite. Table 8-2

describes the content of engineering labels.

Table 8-2 LampSite Engineering Label Content

NE

Label Content

Description

Corresponding

port on the base

station

RHUB390

8

Power

label

RHUB390

8x

PWR

Label for the RHUB3908x

power cable.

x specifies the number of

RHUB3908s and cannot

exceed the maximum

RHUB3908 number

supported by the

networking.

PWR

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NE

Label Content

Description

Corresponding

port on the base

station

Ground

label

RHUB390

8x

PGND

Label for the RHUB3908x

ground cable.

x specifies the number of

RHUB3908s and cannot

exceed the maximum

RHUB3908 number

supported by the

networking.

Alarm or

monitorin

g label

RHUB390

8x

EXT_AL

M

Label for the RHUB3908x

alarm cable.

x specifies the number of

RHUB3908s and cannot

exceed the maximum

RHUB3908 number

supported by the

networking.

EXT-ALM

Optical

transmissi

on label

RHUB390

8x

BBU/RH

UB3908a/

RHUB390

8b

Label for the RHUB3908x

CPRI cable.

 x specifies the number

of RHUB3908s and

cannot exceed the

maximum RHUB3908

number supported by

the networking.

 a can be set to 0 or 1. 0

and 1 respectively

correspond to CPRI0

port and CPRI1 port of

the upper-level

RHUB3908.

 b can be set to 0 or 1. 0

and 1 respectively

correspond to CPRI0

port and CPRI1 port of

the lower-level

RHUB3908.

CPRI0 or CPRI1

Network

transmissi

on label

RHUB390

8x

CPRI_Ea

Label for the RHUB3908x

Ethernet cable.

 x specifies the number

of RHUB3908s and

cannot exceed the

maximum RHUB3908

number supported by

the networking.

 a can be set to 0 or 1. 0

and 1 respectively

CPRI_E0 to

CPRI_E7

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NE

Label Content

Description

Corresponding

port on the base

station

correspond to CPRI_E0

port and CPRI_E1 port

of the pRRU3901.

pRRU390

1

Power

label

pRRU390

1y

PWR

Label for the pRRU3901y

power cable.

y specifies the number of

pRRU3901s and cannot

exceed the maximum

pRRU3901 number

supported by the

networking.

PWR or CPRI_E0

Network

transmissi

on label

pRRU390

1y

CPRI_Ea

Label for the pRRU3901y

Ethernet cable.

 y specifies the number

of pRRU3901s and

cannot exceed the

maximum pRRU3901

number supported by

the networking.

 a can be set to 0 to 7,

which respectively

correspond to CPRI_E0

port to CPRI_E7 port of

the RHUB3908.

CPRI_E0 or

CPRI_E1

Antenna

label

pRRU390

1y

ANTa

Label for the pRRU3901y

RF Jumper.

 y specifies the number

of pRRU3901s and

cannot exceed the

maximum pRRU3901

number supported by

the networking.

 a can be set to 0 to 5,

which respectively

correspond to ANT0

port and ANT5 port of

the pRRU3901.

ANT0 to ANT5

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 In the label, RHUB3908 and pRRU3901 identify the specific LampSite NEs.

 If only one RHUB3908 is deployed, mark it as RHUB39080 on the label. If multiple RHUB3908s

are deployed, mark them in ascending sequence, beginning with RHUB39080.

 If only one pRRU3901 is deployed, mark it as pRRU39010 on the label. If multiple pRRU3901s are

deployed, mark them in ascending sequence, beginning with pRRU39010.

 For details about the maximum number of RHUB3908s and pRRU3901s in the LampSite solution,

see Typical Configurations in LampSite Technical Description.

Label Structure

Using the RHUB3908 power label as an example, Figure 8-1 shows the structure of a

LampSite engineering label.

Figure 8-1 Label structure

8.3 Attaching an L-Shaped Label

This section describes the procedure and precautions to be taken for attaching an L-shaped

label.

Context

 This section applies to Huawei sign plate labels. If other engineering labels in

accordance with local standards are used on site, follow the local standards for attaching

sign plate labels.

 In the LampSite solution, blank L-Shaped engineering labels are delivered by default.

 The L-shaped label is usually used for the signal cable, E1/T1 cable, optical cable, and

power cable. The description in this section takes the Ethernet cable in a base station as

an example.

Procedure

1. Obtain the engineering label to be attached from the whole set of the L-shaped

engineering labels, as shown in Figure 8-2.

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Figure 8-2 Engineering label to be attached

Step 2 Attach the long end of the engineering label to the cable in the position 20 mm away from the

connector, and then turn over the long end along the adhesive face. Ensure that the edges of

the turned-over engineering label are in a line, as shown in Figure 8-3.

By default, the label is attached in the position 20 mm away from the connector. If required, you can

change the position to make installation faster and more efficient. Consistency and neatness, however,

must be maintained.

Step 3 Adhere the long end to the labeling area. Ensure that the spacing between the cable and the

labeling area is 2 mm to 3 mm.

Figure 8-3 Adhering the long end to the labeling area

Step 4 Turn over the labeling area along the adhesive face from the bottom, and then finish attaching

the engineering label, as shown in Figure 8-4 and Figure 8-5. Ensure that the edges of the

turned-over labeling area are in a line.

Figure 8-4 Turning over the labeling area along the adhesive face

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Figure 8-5 Attached engineering label

Step 5 Fill in the attached blank label by referring to 8.2 LampSite Engineering Label.

----End

8.4 Installing RF Daughter Boards on a pRRU3901 (in

Capacity Expansion Scenarios)

This section describes the procedures for installing RF daughter boards on a pRRU3901.

Context

An RF daughter Board is only installed in product pRRU3901 AWS+PCS+WIFInd

pRRU3901 AWS+PCS+WIFI, and it transmits, receives, and processes RF signals.

The preferred slot for an RF daughter board depends on the mode of the RF daughter board.

Figure 8-6 shows the slot for installing the RF daughter boards.

Figure 8-6 Slot for installing the RF daughter boards

 Unless otherwise specified, LTE mode in this document refers to LTE TDD and LTE FDD.

 This section describes how to install an RF daughter board in slot S2 as an example.

Procedure

Step 1 Instruct the network operator to block the pRRU3901.

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The LampSite solution supports immediate block, idle block, and delayed block. Application of idle

block and delayed block produces the same effect as application of immediate block.

 On the UMTS side, log in to the LMT and run the BLK BRD command to block the RF

daughter board.

 On the LTE side, log in to the LMT and run the BLK BRD command to block the RF

daughter board.

Step 2 Power off the pRRU3901.

Powering off the pRRU3901 interrupts all the services carried on the pRRU3901.

Step 3 Wear ESD gloves.

Take proper ESD protection measures. For example, wear ESD gloves to prevent electrostatic

damage to the boards, modules, or electronic components.

Step 4 Use an M4 Phillips screwdriver to loosen the Phillips screw on the pRRU3901 housing.

Wrench and remove the housing from the installation position of the Phillips screw hole, as

shown in Figure 8-7.

Figure 8-7 Removing the pRRU3901 housing

 Either Phillips screws or protection screws can be used for installing the pRRU3901 housing and the

RF daughter board, 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.

Step 5 Install an RF daughter board in slot S2.

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3. Remove the protective cover from the RF daughter board connector of slot S2.

4. Level the handles of an RF daughter board of the required mode, and insert the handles

separately in the two dowels of slot S2, and use the M4 Phillips screwdriver to tighten

the two Phillips screws on the RF daughter board with a torque of 1.4 N•m, as shown in

Figure 8-8.

Figure 8-8 Installing the RF daughter board in slot S2

Step 6 Remove the SN label and mode label on the surface of the RF daughter board, as shown in

Figure 8-9.

Figure 8-9 Removing the SN label and mode label

Step 7 Attach the removed SN label to the corresponding position for S2 label on the nameplate side

of the pRRU3901 housing and the mode label to a position (for the label of slot S2 on the side

of the pRRU3901 housing) between antenna ports ANT2 and ANT3, as shown in Figure 8-10.

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Figure 8-10 Attaching the SN label and mode label

Step 8 Close the pRRU3901 housing and tamp each side of the housing until a click is heard. Ensure

that the groove gaps between the front and back housings are evenly distributed. Use the M4

Phillips screwdriver to tighten the Phillips screw on the housing with a torque of 1.4 N•m, as

shown in Figure 8-11.

Figure 8-11 Installing the pRRU3901 housing

The Phillips screw is the one removed and kept in Step 4.

Step 9 Power on the pRRU3901.

Step 10 Instruct the network operator to unblock the pRRU3901.

 On the UMTS side, log in to the NodeB LMT and run the UBL BRD command to

unblock the RF daughter board of the pRRU3901.

 On the LTE side, log in to the eNodeB LMT and run the UBL BRD command to unblock

the RF daughter board of the pRRU3901.

Step 11 Take off the ESD gloves and pack up all the tools.

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----End

Huawei Technologies PRU01B02 pRRU Multi-Mode Radio Unit User Manual Installation Guide

Huawei Technologies Co.,Ltd pRRU Multi-Mode Radio Unit Installation Guide

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