Huawei Technologies RU3832 Remote Radio Unit User Manual Hardware Description

RU3832&RU3632

Hardware Description

Issue

03

Date

2014-01-20

HUAWEI TECHNOLOGIES CO., LTD.

Issue 03 (2014-01-20)

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

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About This Document

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About This Document

Purpose

This document provides reference for planning and deploying DC blade RU3832 and RU3632

(referred to as RU in this document). It presents the exterior and describes the ports, functions,

cable types, connector specifications, and cable connections of the RU.

Product Versions

The following table lists the product versions related to this document for RU3832.

Product Name

Solution Version

Product Version

DBS3900

SRAN6.0 and later versions

V100R004C00 and later

versions

RAN13.0 and later versions

V200R013C00 and later

versions

eRAN6.0 and later versions

V100R006C00 and later

versions

The following table lists the product versions related to this document for RU3632.

Product Name

Solution Version

Product Version

DBS3900

 SRAN8.0 and later

versions

 eRAN6.0 and later

versions

V100R008C00 and later

versions

Intended Audience

This document is intended for:

 Base station installation engineers

 System engineers

 Site maintenance engineers

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Organization

1 Changes in RU3832&RU3632 Hardware Description

This chapter describes the changes in RU3832&RU3632 Hardware Description.

2 RU Introduction

This chapter describes the exterior and function of the RU as well as the ports and indicators

on the RU.

3 RU Cables

This chapter describes RU cables.

4 RF Cable Connections for the RU3832&RU3632

RF cable connections for the RU vary depending on the configurations of the RU and

antenna.

5 RU Auxiliary Devices

This chapter describes RU auxiliary devices.

Conventions

Symbol Conventions

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

Symbol

Description

Indicates an imminently hazardous situation which, if not

avoided, will result in death or serious injury.

Indicates a potentially hazardous situation which, if not

avoided, could result in death or serious injury.

Indicates a potentially hazardous situation which, if not

avoided, may result in minor or moderate injury.

Indicates a potentially hazardous situation which, if not

avoided, could result in equipment damage, data loss,

performance deterioration, or unanticipated results.

NOTICE is used to address practices not related to personal

injury.

Calls attention to important information, best practices and

tips.

NOTE is used to address information not related to personal

injury, equipment damage, and environment deterioration.

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General Conventions

Convention

Description

Times New Roman

Normal paragraphs are in Times New Roman.

Boldface

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

boldface. For example, log in as user root.

Italic

Book titles are in italics.

Courier New

Terminal display is in Courier New.

Command Conventions

Convention

Description

Boldface

The keywords of a command line are in boldface.

Italic

Command arguments are in italics.

[ ]

Items (keywords or arguments) in square brackets [ ] are

optional.

{ x | y | ... }

Alternative items are grouped in braces and separated by

vertical bars. One is selected.

[ x | y | ... ]

Optional alternative items are grouped in square brackets

and separated by vertical bars. One or none is selected.

{ x | y | ... } *

Alternative items are grouped in braces and separated by

vertical bars. A minimum of one or a maximum of all can

be selected.

GUI Conventions

Convention

Description

Boldface

Buttons, menus, parameters, tabs, windows, and dialog titles

are in boldface. For example, click OK.

>

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

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

Keyboard Operation

Format

Description

Key

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

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Format

Description

Key 1+Key 2

Press the keys concurrently. For example, pressing

Ctrl+Alt+A means the three keys should be pressed

concurrently.

Key 1, Key 2

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

the two keys should be pressed in turn.

Mouse Operation

Action

Description

Click

Select and release the primary mouse button without

moving the pointer.

Double-click

Press the primary mouse button twice continuously and

quickly without moving the pointer.

Drag

Press and hold the primary mouse button and move the

pointer to a certain position.

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Contents

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Contents

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

1 Changes in RU3832&RU3632 Hardware Description ............................................................ 1

2 RU Introduction............................................................................................................................. 2

2.1 RU Exterior ................................................................................................................................................................... 2

2.2 RU Functions ................................................................................................................................................................ 3

2.3 RU Technical Specifications ......................................................................................................................................... 4

2.4 RU Ports ....................................................................................................................................................................... 5

2.5 RU Indicators .............................................................................................................................................................. 10

2.6 Optical Modules.......................................................................................................................................................... 11

3 RU Cables ..................................................................................................................................... 13

3.1 RU Cable List ............................................................................................................................................................. 14

3.2 RU PGND Cable......................................................................................................................................................... 15

3.3 RU Power Cable ......................................................................................................................................................... 16

3.4 RU Alarm Cable ......................................................................................................................................................... 17

3.5 CPRI Fiber Optic Cable .............................................................................................................................................. 18

3.6 RU RF Jumper ............................................................................................................................................................ 22

3.7 RU AISG Multi-Wire Cable ....................................................................................................................................... 23

3.8 RU AISG Extension Cable ......................................................................................................................................... 24

4 RF Cable Connections for the RU3832&RU3632................................................................... 26

5 RU Auxiliary Devices ................................................................................................................. 28

5.1 IFS06 .......................................................................................................................................................................... 28

5.2 OCB ............................................................................................................................................................................ 30

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1 Changes in RU3832&RU3632 Hardware Description

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1 Changes in RU3832&RU3632 Hardware

Description

This chapter describes the changes in RU3832&RU3632 Hardware Description.

03 (2014-01-20)

This is the third official release.

Compared with issue 02 (2013-07-30), this issue includes the following new information:

4 RF Cable Connections for the RU3832&RU3632.

Compared with issue 02 (2013-07-30), this issue does not include any changes.

Compared with issue 02 (2013-07-30), no information is deleted from this issue.

02 (2013-07-30)

This is the second official release.

Compared with issue 01 (2013-04-28), this issue does not include any new information.

Compared with issue 01 (2013-04-28), this issue includes the following changes:

Topic

Change Description

2.4 RU Ports

Added a detailed description of the alarm

port.

Compared with issue 01 (2013-04-28), no information is deleted from this issue.

01 (2013-04-28)

This is the first official release.

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2 RU Introduction

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2 RU Introduction

About This Chapter

This chapter describes the exterior and function of the RU as well as the ports and indicators

on the RU.

2.1 RU Exterior

This section describes the exterior and dimensions of an RU.

2.2 RU Functions

This section describes the main functions of the RU.

2.3 RU Technical Specifications

This section describes technical specifications of an RU, including supported modes,

frequency bands, RF specifications, engineering specifications, and antenna capabilities.

2.4 RU Ports

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

panel, and indicator panel.

2.5 RU Indicators

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

2.6 Optical Modules

An optical module transmits optical signals between an optical port and a fiber optic cable.

2.1 RU Exterior

This section describes the exterior and dimensions of an RU.

Figure 2-1 shows an RU.

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Figure 2-1 RU exterior

Figure 2-2 shows RU dimensions.

Figure 2-2 RU dimensions

2.2 RU Functions

This section describes the main functions of the RU.

The Remote Radio Unit (RU) consists of the high-speed interface unit, signal processing unit,

power amplifier, duplexer, extension ports, and power module. Figure 2-3 shows the function

structure of the RU.

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Figure 2-3 Function structure of the RU

For details about the extension ports, see 2.4 RU Ports.

The RU performs the following functions:

 Receives downlink baseband data from the BBU and sends uplink baseband data to the

BBU.

 Receives RF signals from the antenna system, down-converts the signals to intermediate

frequency (IF) signals, amplifies the IF signals, and performs analog-to-digital

conversion. The transmit (TX) channel filters downlink signals, performs

digital-to-analog conversion, and up-converts RF signals to the TX band.

 Multiplexes receive (RX) and TX signals on the RF channel, which enables these signals

to share the same antenna path. It also filters the RX and TX signals.

 Provides a built-in Bias Tee (BT). The built-in BT couples RF signals and OOK signals

and transmits them through the TX/RX port A. The built-in BT also supplies power to

the tower mounted amplifier (TMA).

 The RU can be powered by the AC/DC power module. In this case, this RU is called AC

RU. For details about the AC/DC power module, see the AC/DC Power Module User

Guide or OPM15M User Guide.

2.3 RU Technical Specifications

This section describes technical specifications of an RU, including supported modes,

frequency bands, RF specifications, engineering specifications, and antenna capabilities.

For details about technical specifications of an RU, see section "Technical Specifications of

RUs" in the 3900 Series Base Station Technical Description.

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2.4 RU Ports

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

panel, and indicator panel.

Figure 2-4 shows the ports on the RU panels.

Figure 2-4 Ports on the RU panels

Table 2-1 describes ports and indicators on the RU panels.

Table 2-1 Ports and indicators on the RU panels

Item

Silkscreen

Remarks

(1) Ports in the

cabling cavity

RTN(+)

Power supply socket

NEG(-)

CPRI0

Optical/electrical port 0

CPRI1

Optical/electrical port 1

(2) Ports at the

bottom

ANT_TX/RXA

TX/RX port A, supporting RET signal

transmission

ANT_RXC

RX port C

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Item

Silkscreen

Remarks

ANT_RXD Port

RX port D

ANT_TX/RXB

TX/RX port B

EXT_ALM

Alarm monitoring port used for monitoring

one RS485 signal and two dry contact

signals

RET

Communication port for the RET antenna,

supporting RET signal transmission

(3) Indicators

RUN

See 2.5 RU Indicators.

ALM

ACT

VSWR

CPRI0

CPRI1

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

 For the RU3832, CPRI0 is connected to the BBU or an upper-level RU and CPRI1 is connected to a

lower-level RU.

 For the RU3632, CPRI0 is connected to the BBU and the CPRI1 is reserved.

Table 2-2 describes how to use RF ports for RU3832.

Table 2-2 Usage of RF ports for RU3832

Product Version

TX/RX

Channe

l

Number

of Used

RF Ports

Usage

Remarks

DBS3900 WCDMA

V200R013C00

1 x

2T2R

2

ANT_TX/RXA and

ANT_TX/RXB are used

together.

A single

sector

DBS3900 WCDMA

V200R014C00 and

later versions

1 x

1T2R

2

It is recommended that

ANT_TX/RXA and

ANT_RXC be used

together.

You can also use

ANT_TX/RXB and

ANT_RXD together.

A single

sector

1 x

2T2R

2

ANT_TX/RXA and

ANT_TX/RXB are used

together.

A single

sector

1 x

4

ANT_TX/RXA,

A single

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Product Version

TX/RX

Channe

l

Number

of Used

RF Ports

Usage

Remarks

2T4R

ANT_TX/RXB,

ANT_RXC, and

ANT_RXD are used

together for one sector,

with ANT_TX/RXA and

ANT_RXC combined and

ANT_TX/RXB and

ANT_RXD combined.

sector

2 x

1T2R

4

ANT_TX/RXA and

ANT_RXC are used for

one sector; ANT_TX/RXB

and ANT_RXD are used

for the other sector.

Two sectors

DBS3900 LTE

V100R006C00 and

later versions

1 x

2T2R

2

ANT_TX/RXA and

ANT_TX/RXB are used

together.

A single

sector

1 x

2T4R

4

ANT_TX/RXA,

ANT_TX/RXB,

ANT_RXC, and

ANT_RXD are used

together for one sector,

with ANT_TX/RXA and

ANT_RXC combined and

ANT_TX/RXB and

ANT_RXD combined.

A single

sector

Table 2-3 describes how to use RF ports for RU3632.

Table 2-3 Usage of RF ports for RU3632

Product Version

TX/RX

Channe

l

Number

of Used

RF Ports

Usage

Remarks

DBS3900 LTE

V100R006C00 and

later versions

1 x

2T2R

2

ANT_TX/RXA and

ANT_TX/RXB are used

together.

A single

sector

1 x

2T4R

4

ANT_TX/RXA,

ANT_TX/RXB,

ANT_RXC, and

ANT_RXD are used

together for one sector,

with ANT_TX/RXA and

ANT_RXC combined and

ANT_TX/RXB and

ANT_RXD combined.

A single

sector

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Figure 2-5 shows the recommended usage of the RF ports on an RU3832 used for DBS3900

WCDMA V200R013C00.

Figure 2-5 Recommended usage of the RF ports on an RU3832 used for DBS3900 WCDMA

V200R013C00

Figure 2-6 shows the recommended usage of the RF ports on an RU3832 used for DBS3900

WCDMA V200R014C00 and later versions.

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Figure 2-6 Recommended usage of the RF ports on an RU3832 used for DBS3900 WCDMA

V200R014C00 and later versions

Figure 2-7 shows the recommended usage of the RF ports on RU3832 and RU3632 used for

DBS3900 LTE V100R006C00 and later versions.

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Figure 2-7 Recommended usage of the RF ports on RU3832 and RU3632 used for DBS3900 LTE

V100R006C00 and later versions

2.5 RU Indicators

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

For detailed positions of RU indicators, see 2.4 RU Ports.

Table 2-4 describes RU indicators.

Table 2-4 RU indicators

Indicator

Color

Status

Meaning

RUN

Green

Steady on

There is power supply, but the module is

faulty.

Steady off

There is no power supply, or the module is

faulty.

Blinking (on for

1s and off for 1s)

The board is functioning properly.

Blinking (on for

0.125s and off for

0.125s)

Software is being loaded to the module, or

the module is not started.

ALM

Red

Steady on

Alarms are generated, and the module must

be replaced.

Blinking (on for

1s and off for 1s)

Alarms are generated. The alarms may be

caused by the faults on the related boards or

ports. Therefore, you need to locate the

fault before deciding whether to replace the

module.

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Indicator

Color

Status

Meaning

Steady off

No alarm is generated.

ACT

Green

Steady on

The module is running properly with TX

channels enabled or the software is being

loaded without RU running.

Blinking (on for

1s and off for 1s)

The module is running properly with TX

channels disabled.

VSWR

Red

Steady off

No Voltage Standing Wave Ratio (VSWR)

alarm is generated.

Blinking (on for

1s and off for 1s)

VSWR alarms are generated on the

ANT_TX/RXB port.

Steady on

VSWR alarms are generated on the

ANT_TX/RXA port.

Blinking (on for

0.125s and off for

0.125s)

VSWR alarms are generated on the

ANT_TX/RXA and ANT_TX/RXB ports.

CPRI0

Red or

green

Steady green

The CPRI link is functioning properly.

Steady red

An optical module fails to transmit or

receive signals because the optical module

is faulty or the fiber optic cable is broken.

Blinking red (on

for 1s and off for

1s)

The CPRI link is out of lock because of a

failure in clock lock between two modes or

mismatched data rates over CPRI ports.

Steady off

The optical module cannot be detected, or

the optical module is powered off.

CPRI1

Red or

green

Steady green

The CPRI link is functioning properly.

Steady red

An optical module fails to transmit or

receive signals because the optical module

is faulty or the fiber optic cable is broken.

Blinking red (on

for 1s and off for

1s)

The CPRI link is out of lock because of a

failure in clock lock between two modes or

mismatched data rates over CPRI ports.

Steady off

The optical module cannot be detected, or

the optical module is powered off.

2.6 Optical Modules

An optical module transmits optical signals between an optical port and a fiber optic cable.

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The exteriors of an optical module and the label on an optical module in this section are for reference

only. The actual exteriors may be different.

Exterior

The following figure shows the exterior of an optical module.

Figure 2-8 Exterior of an optical module

Label on an optical module

There is a label on each optical module, which provides information such as the rate,

wavelength, and transmission mode, as shown in the following figure.

Figure 2-9 Label on an optical module

(1) Rate

(2) Wavelength

(3) Transmission mode

Optical Module Type

Optical modules can be divided into single- and multimode optical modules, which can be

distinguished as follows:

 The puller of a single-mode optical module is blue and the puller of a multimode optical

module is black or gray.

 The transmission mode is displayed as "SM" on the label of a single-mode optical

module and "MM" on the label of a multimode optical module.

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3 RU Cables

About This Chapter

This chapter describes RU cables.

3.1 RU Cable List

This section describes RU cable connections.

3.2 RU PGND Cable

An RU PGND cable connects an RU and a ground bar, ensuring the proper grounding of the

RU. The maximum length of an RU PGND cable is 8 m (26.25 ft).

3.3 RU Power Cable

The RU power cable is a -48 V DC shielded cable. It feeds -48 V DC power to an RU. The

length of power supply that an RU power cable supports is 100 m (328.08 ft) by default.

3.4 RU Alarm Cable

The RU alarm cable, a shielded straight-through cable, transmits alarm signals from an

external device to an RU so that the base station monitors the operating status of external

devices. The RU alarm cable is 5 m (16.4 ft).

3.5 CPRI Fiber Optic Cable

CPRI fiber optic cables are classified into multimode fiber optic cables and single-mode fiber

optic cables. They transmit CPRI signals.

3.6 RU RF Jumper

The 1/2" RU RF jumper transmits and receives RF signals between an RU and an antenna. A

fixed-length RF jumper used by an RU is 2 m (6.56 ft), 3 m (9.84 ft), 4 m (13.12 ft), 6 m

(19.68 ft), or 10 m (32.81 ft). A variable-length RF jumper used by an RU has a maximum

length of 10 m (32.81 ft).

3.7 RU AISG Multi-Wire Cable

An RU AISG multi-wire cable connects an RU and an RCU to transmit control signals from a

base station to an RET antenna. When the RU is connected to the RET antenna, an AISG

multi-wire cable transmits RS485 signals. The length of the AISG multi-wire cable is 5 m

(16.40 ft).

3.8 RU AISG Extension Cable

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When the distance between an RU and an RCU is longer than 5 m (16.4 ft), an AISG

multi-wire cable is not long enough to connect the RU and the RCU. In this case, an AISG

extension cable is used to extend the AISG multi-wire cable for transmitting RS485 signals.

The length of the AISG extension cable is 15 m (49.21 ft).

3.1 RU Cable List

This section describes RU cable connections.

Table 3-1 lists RU cables.

Table 3-1 RU cables

Cable

One End

The Other End

Connector

Installation

Position

Connector

Installation

Position

3.2 RU

PGND Cable

OT terminal

(M6, 16 mm2 or

0.025 in.2)

Ground

terminal on the

RU

OT terminal

(M8, 16 mm2 or

0.025 in.2)

Ground terminal

on the ground bar

3.3 RU

Power Cable

Tool-less female

connector

(pressfit type)

NEG(-) and

RTN(+) ports

on the RU

Depending on

the power supply

equipment

External power

equipment

3.4 RU

Alarm Cable

DB15

waterproof male

connector

EXT_ALM

port on the RU

Cord end

terminal

External alarm

device

3.5 CPRI

Fiber Optic

Cable(RU38

32)

DLC connector

CPRI0 port on

the RU

DLC connector

CPRI port on a

board in the BBU

or CPRI1 port on

the upper-level

RU

CPRI1 port on

the RU

CPRI0 port on

the lower-level

RU

3.5 CPRI

Fiber Optic

Cable(RU36

32)

DLC connector

CPRI0 port on

the RU

DLC connector

CPRI port on a

board in the BBU

3.6 RU RF

Jumper

DIN male

connector

ANT_TX/RX

A,

ANT_TX/RX

B, ANT_RXC,

or ANT_RXD

port on the RU

DIN male

connector

Antenna system

3.7 RU

AISG

Multi-Wire

DB9 waterproof

male connector

RET port on

the RU

Standard AISG

female connector

Standard AISG

male connector

on the RCU or on

the AISG

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Cable

One End

The Other End

Connector

Installation

Position

Connector

Installation

Position

Cable

extension cable

3.8 RU

AISG

Extension

Cable

Standard AISG

male connector

Standard AISG

female

connector on

the AISG

multi-wire

cable

Standard AISG

female connector

Standard AISG

male connector

on the RCU

3.2 RU PGND Cable

An RU PGND cable connects an RU and a ground bar, ensuring the proper grounding of the

RU. The maximum length of an RU PGND cable is 8 m (26.25 ft).

Exterior

A PGND cable is green or green and yellow with a cross-sectional area of 16 mm2 (0.025 in.2).

An OT terminal is installed at each end of the cable. Figure 3-1 shows a PGND cable.

Figure 3-1 PGND cable

(1) OT terminal (M6, 16 mm2 or 0.025 in.2)

(2) OT terminal (M8, 16 mm2 or 0.025 in.2)

 If the customer prepares the PGND cable, a copper-core cable with a cross-sectional area of 16 mm2

(0.025 in.2) or larger is recommended.

 One OT terminal must be added to each end of the PGND cable onsite.

 You can determine the color of the cable and whether to use corresponding two-hole OT terminals

based on local regulations.

Figure 3-2 shows a two-hole OT terminal.

Figure 3-2 Two-hole OT terminal

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3.3 RU Power Cable

The RU power cable is a -48 V DC shielded cable. It feeds -48 V DC power to an RU. The

length of power supply that an RU power cable supports is 100 m (328.08 ft) by default.

 The maximum length of power supply that an RU power cable supports is 150 m (492.12 ft).

Contact Huawei engineers when an RU power cable greater than 50 m (164.04 ft) is required.

 If a power device provided by the customer is used, the recommended specification of the circuit

breaker on this power device is 15 A to 30 A.

Exterior

There are four types of RU power cables in terms of cross-sectional areas: 3.3 mm2 (0.005 in.2)

(12 AWG) and 5.3 mm2 (0.008 in.2) (10 AWG) complying with North American standards,

and 4 mm2 (0.006 in.2) and 6 mm2 (0.009 in.2) complying with European standards.

A tool-less female connector (pressfit type) needs to be added to one end of the RU power

cable and a corresponding terminal needs to be added to the other end based on the

requirements of the connector on the external power device, as shown in Figure 3-3.

Figure 3-3 RU power cable

(1) -48 V DC power cable

(2) Shield layer

(3) Tool-less female

connector (pressfit type)

Table 3-2 lists the specifications of an RU power cable.

Table 3-2 Specifications of an RU power cable

Cable

Wire

Wire Color in Most

Regions

Wire Color in Other Regions

North

American

Standard

Europea

n

Standar

d

UK

RU

power

cable

RTN(+)

Black

Brown

Blue

NEG(-)

Blue

Gray

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3.4 RU Alarm Cable

The RU alarm cable, a shielded straight-through cable, transmits alarm signals from an

external device to an RU so that the base station monitors the operating status of external

devices. The RU alarm cable is 5 m (16.4 ft).

Exterior

An alarm cable has a DB15 waterproof male connector at one end and eight cord end

terminals at the other end, as shown in Figure 3-4.

Figure 3-4 Alarm cable

(1) DB15 waterproof male connector

(2) Cord end terminal

Pin Assignment

Table 3-3 describes the pin assignment for the wires of an RU alarm cable.

Table 3-3 Pin assignment for the wires of an RU alarm cable

RU

Alarm

Port

Pin of the

Waterpro

ofed

DB15

Male

Connecto

r

Color

Type

Cord End

Terminal

Description

Dry

contact

X1.2

White and

blue

Twisted

pair

X2

SWITCH_INPUT0+

X1.3

Blue

X3

SWITCH_INPUT0-

(GND)

X1.6

White and

orange

Twisted

pair

X4

SWITCH_INPUT1+

X1.7

Orange

X5

SWITCH_INPUT1-

(GND)

RS485

X1.10

White and

green

Twisted

pair

X6

APM RX-

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RU

Alarm

Port

Pin of the

Waterpro

ofed

DB15

Male

Connecto

r

Color

Type

Cord End

Terminal

Description

X1.11

Green

X7

APM RX+

X1.13

White and

brown

Twisted

pair

X8

APM TX-

X1.14

Brown

X9

APM TX+

3.5 CPRI Fiber Optic Cable

CPRI fiber optic cables are classified into multimode fiber optic cables and single-mode fiber

optic cables. They transmit CPRI signals.

Multimode fiber optic cables connect the BBU and RU or interconnect two RUs. The

maximum length of the multimode fiber optic cable between the BBU and RU is 150 m

(492.12 ft) and the multimode fiber optic cable between two RUs has a fixed length of 10 m

(32.81 ft).

A single-mode fiber optic cable consists of the single-mode pigtail and trunk single-mode

fiber optic cable, and the single-mode pigtail and trunk single-mode fiber optic cable are

interconnected using the ODF. The maximum length of the single-mode pigtail is 20 m (65.62

ft) on BBU side and 70 m (229.66 ft) on RU side.

 The ODF and trunk single-mode fiber optic cable are provided by the customer and must comply

with the ITU-T G.652 standard.

 The ODF is an outdoor transfer box for fiber optic cables, which interconnects the single-mode

pigtail and trunk single-mode fiber optic cable.

 A multimode fiber optic cable and a single-mode fiber optic cable are connected to a multimode

optical module and a single-mode optical module, respectively.

Exterior

Multimode fiber optic cable: The multimode fiber optic cable has a DLC connector at each

end, as shown in Figure 3-5.

Figure 3-5 Multimode fiber optic cable

(1) DLC connector

(2) Breakout cable

(3) Label on the breakout cable

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 When a multimode fiber optic cable connects a BBU and an RU, the breakout cable on the BBU side

is 0.34 m (1.12 ft) and the breakout cable on the RU side is 0.03 m (0.098 ft).

 When a multimode fiber optic cable connects two RUs, the breakout cable on both sides is 0.03 m

(0.098 ft).

Figure 3-6 shows the connection of the multimode fiber optic cable between a BBU and an

RU.

Figure 3-6 Connection of the multimode fiber optic cable between a BBU and an RU

(1) Multimode fiber optic cable between a BBU and an RU

Single-mode pigtail: The single-mode pigtail has a DLC connector at one end and an FC, LC,

or SC connector at the other end, as shown in Figure 3-7.

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Figure 3-7 Single-mode pigtail

(1) DLC

connector

(2)

Breakout

cable

(3) Label on the

breakout cable

(4) FC

connector

(5) LC

connector

(6) SC

connector

 When a single-mode pigtail connects a BBU and an ODF, the breakout cables on the BBU side and

ODF side are 0.34 m (1.12 ft) and 0.8 m (2.62 ft), respectively.

 When a single-mode pigtail connects an RU and an ODF, the breakout cables on the RU side and

ODF side are 0.03 m (0.098 ft) and 0.8 m (2.62 ft), respectively.

Figure 3-8 shows the connection of the single-mode pigtail.

Figure 3-8 Connection of the single-mode pigtail

(1) Single-mode pigtail between a BBU and

(2) Single-mode pigtail between an RU and

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an ODF

Selection Principles

The following table describes the principles for selecting CPRI fiber optic cables.

Table 3-4 Principles for selecting CPRI fiber optic cables

Remote

Distance

Selection Principle

Remarks

Less than or

equal to 100

m (328.08 ft)

Multimode fiber optic cable

Connects the BBU and RU

When it connects two RUs, the distance

between the two RUs must be equal to or

less than 10 m (32.81 ft).

Greater than

100 m

(328.08 ft)

and equal to

or less than

150 m

(492.12 ft)

Multimode fiber optic cable

Connects the BBU and RU

Recommended: single-mode

fiber optic cable

(single-mode pigtail and

trunk single-mode fiber optic

cable)

The single-mode pigtail at the RU or BBU

side is connected to the trunk single-mode

fiber optic cable using the ODF.

Greater than

150 m

(492.12 ft)

Single-mode fiber optic cable

(single-mode pigtail and

trunk single-mode fiber optic

cable)

Pin Assignment

Table 3-5 describes the labels on and recommended connections for the breakout cables of a

CPRI fiber optic cable.

Table 3-5 Labels on and recommended connections for the breakout cables of a CPRI fiber optic

cable

Label

Installation Position

Multimode Fiber

Optic Cable

Between a BBU

and an RU

Multimode Fiber

Optic Cable

Between Two RUs

Single-Mode Pigtail

1A

CPRI RX port on the

RU

CPRI RX port on

RU 1

RX port on the BBU or

CPRI RX port on the

RU

1B

CPRI TX port on the

RU

CPRI TX port on

RU 1

TX port on the BBU or

CPRI TX port on the

RU

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Label

Installation Position

Multimode Fiber

Optic Cable

Between a BBU

and an RU

Multimode Fiber

Optic Cable

Between Two RUs

Single-Mode Pigtail

2A

TX port on the BBU

CPRI TX port on

RU 0

ODF

2B

RX port on the BBU

CPRI RX port on

RU 0

ODF

3.6 RU RF Jumper

The 1/2" RU RF jumper transmits and receives RF signals between an RU and an antenna. A

fixed-length RF jumper used by an RU is 2 m (6.56 ft), 3 m (9.84 ft), 4 m (13.12 ft), 6 m

(19.68 ft), or 10 m (32.81 ft). A variable-length RF jumper used by an RU has a maximum

length of 10 m (32.81 ft).

 When the distance between an RU and an antenna is less than 10 m (32.81 ft), one end of the RF

jumper is connected to the ANT-TX/RXA or ANT-TX/RXB port at the bottom of the RU, and the

other end is connected to the antenna.

 When the distance between an RU and an antenna is greater than 10 m (32.81 ft), one end of the RF

jumper is connected to a feeder, and the other end is connected to the antenna.

 If the customer prepares the RF jumper, the length of the RF jumper should be as short as possible

and not exceed 2 m (6.56 ft.).

Exterior

An RF jumper has a DIN male connector at one end and a customized connector at the other

end.

Figure 3-9 shows an RF jumper with a DIN male connector at each end.

Figure 3-9 RF jumper

(1) DIN male connector

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3.7 RU AISG Multi-Wire Cable

An RU AISG multi-wire cable connects an RU and an RCU to transmit control signals from a

base station to an RET antenna. When the RU is connected to the RET antenna, an AISG

multi-wire cable transmits RS485 signals. The length of the AISG multi-wire cable is 5 m

(16.40 ft).

An RCU is a driving motor used for the phase shifter in the RET antenna. It receives control commands

from a base station and runs the commands to drive the stepper motor. Using a gear, the stepper motor

drives the adjustable phase shifter in the antenna and changes the downtilt angle.

Exterior

An AISG multi-wire cable has a waterproofed DB9 male connector at one end and a standard

AISG female connector at the other end, as shown in Figure 3-10.

Figure 3-10 AISG multi-wire cable

(1) Waterproofed DB9 male connector

(2) Standard AISG female connector

Pin Assignment

Table 3-6 describes the pin assignment for the wires of an AISG multi-wire cable.

Table 3-6 Pin assignment for the wires of an AISG multi-wire cable

X1 End (Pin of

the

Waterproofed

DB9 Male

Connector)

X2 End (Pin of the

Standard AISG

Female Connector)

Color

Type

Description

X1.1

X2.1

White and

blue

Twisted

pair

+12 V

Blue

X1.3

X2.3

White and

orange

Twisted

pair

RS485 B

X1.5

X2.5

Orange

RS485 A

X1.4

X2.4

White and

green

-

GND

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X1 End (Pin of

the

Waterproofed

DB9 Male

Connector)

X2 End (Pin of the

Standard AISG

Female Connector)

Color

Type

Description

X1.9 and X1.4 are

interconnected.

-

GND

-

X2.1 and X2.6 are

interconnected.

-

+12 V

-

X2.4 and X2.7 are

interconnected.

-

GND

3.8 RU AISG Extension Cable

When the distance between an RU and an RCU is longer than 5 m (16.4 ft), an AISG

multi-wire cable is not long enough to connect the RU and the RCU. In this case, an AISG

extension cable is used to extend the AISG multi-wire cable for transmitting RS485 signals.

The length of the AISG extension cable is 15 m (49.21 ft).

Exterior

An AISG multi-wire cable has a standard AISG male connector at one end and a standard

AISG female connector at the other end, as shown in Figure 3-11.

Figure 3-11 AISG extension cable

(1) Standard AISG male connector

(2) Standard AISG female connector

Pin Assignment

Table 3-7 describes the pin assignment for the wires of an AISG extension cable.

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Table 3-7 Pin assignment for the wires of an AISG extension cable

X1 End (Pin

of the

Standard

AISG Male

Connector)

X2 End (Pin

of the

Standard

AISG

Female

Connector)

Color

Type

Description

X1.1

X2.1

White and blue

Twisted pair

+12 V

Blue

X1.7

X2.7

White and

orange

Twisted pair

DC Return

Orange

X1.3

X2.3

White and green

Twisted pair

RS485 B

X1.5

X2.5

Green

RS485 A

X1.6

X2.6

White and brown

Twisted pair

+24 V

Brown

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4 RF Cable Connections for the

RU3832&RU3632

RF cable connections for the RU vary depending on the configurations of the RU and

antenna.

Description of RF Cable Connections

This section describes the RF cable connections for the RU serving a single sector. The

following table lists the RF cable connections for the RU.

Table 4-1 RF cable connections for the RU

RU Model

Specifications of a

Single RU

Scenario

Illustration of

Cable

Connections

RU3832 and

RU3632

For details, see section

"Typical Power

Configuration for RU

Modules" in chapter

"Configuration

Reference" in 3900

Series Base Station

Initial Configuration

Guide.

2T2R

See illustration 1 in

Figure 4-1.

1T2R+1T2R

See illustration 2 in

Figure 4-1.

2T4R

See illustration 3 in

Figure 4-1.

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Illustration of Cable Connections

Figure 4-1 RF cable connections for the RU

RRU3832&RRU3632

Hardware Description

5 RU Auxiliary Devices

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5 RU Auxiliary Devices

About This Chapter

This chapter describes RU auxiliary devices.

5.1 IFS06

An Indoor Floor installation Support (IFS06) is used for installing indoor RUs.

5.2 OCB

An Outdoor Cable Conversion Box (OCB) interconnects cables of different core diameters.

Power cables shipped with RUs cannot support long-distance power supply. Therefore, when

power supply is far from the equipment, cables with large core diameters are used, and an

OCB connects these cables and RU power cables.

5.1 IFS06

An Indoor Floor installation Support (IFS06) is used for installing indoor RUs.

Exterior

Figure 5-1 shows an IFS06.

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Figure 5-1 IFS06

(1) Cable tray

(2) Ground bar 2

(3) Rear foot

(4) Front foot

(5) Adjustable beam

(6) Ground bar 1

(7) Main frame

-

Function

 It can be installed on the ground.

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

heights of RUs.

 RUs can be installed on an IFS06 only when the ambient temperature is higher than or

equal to the lowest working temperature of the RU and at least 5°C (41°F) lower than the

highest working temperature of the RU. In this scenario, the IFS06 supports at least three

RUs. When the ambient temperature is higher than or equal to the lowest working

temperature of the RU and at least 10°C (50°F) lower than the highest working

temperature of the RU, the IFS06 supports a maximum of six RUs.

For details about the operating temperature of the RU, see section "Technical Specifications of RUs" in

3900 Series Base Station Technical Description.

Specifications

Table 5-1 describes IFS06 specifications.

Table 5-1 IFS06 specifications

Item

Specification

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Item

Specification

Dimensions (H x W x D)

1730 mm (79 in.) x 600 mm (23.62 in.) x 600 mm (23.62

in.)

Weight

45 kg (99.23 lb)

5.2 OCB

An Outdoor Cable Conversion Box (OCB) interconnects cables of different core diameters.

Power cables shipped with RUs cannot support long-distance power supply. Therefore, when

power supply is far from the equipment, cables with large core diameters are used, and an

OCB connects these cables and RU power cables.

Application Scenario of an OCB

Figure 5-2 shows the application scenario of an OCB.

Figure 5-2 Application scenario of an OCB

For details about the structure, functions, installation, and maintenance of an OCB, see the

OCB User Guide or OCB–01M User Guide.

Huawei Technologies RU3832 Remote Radio Unit User Manual Hardware Description

Huawei Technologies Co.,Ltd Remote Radio Unit Hardware Description

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