Huawei DRH3985A, DRH3917A, DRH3919A User Manual

DBS3900 IBS V100R001C02

DRH3985A&3917A&3919A&3919B Hardware Description

Issue

Draft A

Date

2013-08-18

HUAWEI TECHNOLOGIES CO., LTD.

Issue Draft A (2013-08-18)

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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Purpose

Product Name

Product Version

DBS3900 IBS

V100R001C02

DRH Name

DRH Version

DRH3985A

V100R001C02

DRH3917A

V100R001C02

DRH3919A

V100R001C02

DRH3919B

V100R001C02

This document provides reference for planning and deploying a DC DRH. It presents the exterior and describes the ports, functions, cable types, connector specifications, and cable connections of the DRH.

Product Version

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

About This Document

Scope of application

The following table lists the DRH related to this document.

Intended Audience

This document is intended for:



Base station installation engineers



System engineers



Site maintenance engineers

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About This Document

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Organization

1 Changes in DRH3985A&3917A&3919A&3919B Hardware Description

This chapter describes the changes in DRH3985A&3917A&3919A&3919B Hardware Description.

2 DRH Introduction

This chapter describes the exterior and function of the DRH as well as the ports and indicators on the DRH.

3 DRH Cables

This chapter describes DRH cables.

4 DRH Auxiliary Devices

This chapter describes DRH auxiliary devices.

DRH3985A&3917A&3919A&3919B Hardware Description

1 Changes in DRH 3985A&3917A&3919A&3919B

Hardware Description

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1

3985A&3917A&3919A&3919B Hardware

This chapter describes the changes in DRH3985A&3917A&3919A&3919B Hardware Description.

Issue Draft A (2013-08-18)

1 Changes in DRH

Description

This is the Draft A version.

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2 DRH Introduction

This chapter describes the function and exterior of the DRH as well as the ports and indicators on the DRH.

2.1 DRH Exterior

This section describes the exterior and dimensions of a DRH.

Figure 2-1 shows an DRH.

Figure 2-1 DRH exterior

Figure 2-2 shows DRH dimensions.

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Figure 2-2 DRH dimensions

2.2 DRH Functions

This section describes the main functions of the DRH. The Distributed Remote Head (DRH) performs the following functions:



Receives downlink baseband data from the DCU and sends uplink baseband data to the DCU.



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.



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

An DRH consists of a high-speed interface unit, signal processing unit, power amplifier, and dual-duplexer. Figure 2-3 shows the logical structure of the DRH.

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Figure 2-3 Function structure of the DRH

2.3 DRH Technical Specifications

This section describes technical specifications of an DRH, including supported modes, frequency bands, RF specifications, engineering specifications, and antenna capabilities.

For details about technical specifications of an DRH, see section "Technical Specifications " in the DBS3900 IBS V100R001C02 Product Description.

2.4 DRH Ports

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

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

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Figure 2-4 Ports on the DRH panels

Item

Silkscreen

Description

(1) Ports at the bottom

ANT_TX/RXA

TX/RX port A

ANT_TX/RXB

TX/RX port B

ANT_TX/RXC

DRH not use this port

ANT_TX/RXD

DRH not use this port

RX_IN/OUT

DRH not use this port

RET

DRH not use this port

(2) Ports in the

RTN(+)

Power supply socket

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

Table 2-1 Ports and indicators on the DRH panels

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Item

Silkscreen

Description

cabling cavity

NEG(-)

CPRI0

Optical/electrical port 0

CPRI1

Optical/electrical port 1

EXT_ALM

Alarm monitoring port used for monitoring one RS485 signal and two dry contact signals

(3) Indicators

RUN

See 2.5 DRH Indicators.

ALM

ACT

VSWR

CPRI0/IR0

CPRI1/IR1

Table 2-2 describes how to use RF ports.

TX/RX Channel

Number of Used RF Ports

Usage

Remarks

2T2R

2

ANT_TX/RXA and ANT_TX/RXB used together

A single sector

Table 2-2 Usage

Figure2-5Shows the usage of the RF ports on a DRH.

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Figure 2-5 Usage

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

2.5 DRH Indicators

This section describes six indicators on a DRH. They indicate the running status. For detailed positions of DRH indicators, see 2.4 DRH Ports.

Table 2-3 describes DRH indicators.

Table 2-3 DRH indicators

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Indicator

Color

Status

Meaning

ports. Therefore, you need to locate the fault before deciding whether to replace the module.

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 DRH 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.

Steady on

A VSWR alarm is generated on one or multiple ANT ports.

CPRI0/IR0

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/IR1

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.

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.

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Exterior

(1) Rate

(2) Wavelength

(3) Transmission mode

The following figure shows the exterior of an optical module.

Figure 2-6 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 2-7 Label on an optical module

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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2.7 DRH Antennas(Only for U.S.A and Canada)

Type

Description

Omnidirectional Ceiling Antenna

Frequency：698MHz to 2700MHz；Maximum gain： 5dBi

Directional Ceiling Antenna

Frequency：698MHz to 2700MHz；Maximum gain： 6dBi

Wall Mount Antenna

Frequency：698MHz to 2700MHz；Maximum gain： 8dBi

Yagi Directional antenna

Frequency：698MHz to 2700MHz；Maximum gain： 11dBi

Directional Outdoor Antenna

Frequency：698MHz to 2700MHz；Maximum gain：

11.4dBi

Dual-polarized Omnidirectional Ceiling Antenna

Frequency：698MHz to 2700MHz；Maximum gain： 5dBi

Dual-polarized Wall Mount Antenna

Frequency：698MHz to 2700MHz；Maximum gain： 9dBi

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This chapter describes DRH cables.

Cable

One End

The Other End

Connector

Installation Position

Connector

Installation Position

3.2 DRH PGND Cable

OT terminal (M6, 16 mm2 or

0.025 in.2)

Ground terminal on the DRH

OT terminal (M8, 16 mm2 or

0.025 in.2)

Ground terminal on the ground bar

3.3 DRH Power Cable

Tool-less female connector (pressfit type)

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

Depending on the power supply equipment

External power equipment

3.4 DRH Alarm Cable

DB15 male connector

EXT_ALM port on the DRH

Cord end terminal

External alarm device

3.5 CPRI Fiber Optic Cable

DLC connector

CPRI0 port on the DRH

DLC connector

CPRI port on a board in the DRH

3.6 DRH RF Jumper

DIN male connector

ANT_TX/RX A, ANT_TX/RX B, ANT_TX/RX C, or ANT_TX/RX D port on the

DIN male connector or DIN female connector

Antenna system

3.1 DRH Cable List

This section describes DRH cable connections.

3 DRH Cables

Table 3-1 lists DRH cables.

Table 3-1 DRH cables

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Cable

One End

The Other End

Connector

Installation Position

Connector

Installation Position

DRH

Exterior

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

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

3.2 DRH PGND Cable

An DRH PGND cable connects a DRH and a ground bar, ensuring the proper grounding of the DRH. The maximum length of a DRH PGND cable is 8 m (26.25 ft).

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



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

3.3 DRH Power Cable

The DRH power cable is a -48 V DC shielded cable. It feeds -48 V DC power to a DRH. The maximum length of a DRH power cable delivered with DRH s is 50 m (164.04 ft) by default.

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Exterior

(1) -48 V DC power cable

(2) Shield layer

(3) Tool-less female connector (pressfit type)

Cable

Wire

Wire Color in Most Regions

Wire Color in Other Regions

North American Standard

Europea n Standar d

UK

DRH power cable

RTN(+)

Black

Brown

Blue

NEG(-)

Blue

Gray



The maximum length of power supply that a DRH power cable supports is 150 m (492.12 ft). Contact Huawei engineers when a DRH 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.

There are three types of DRH power cables in terms of cross-sectional areas: 5.3 mm2 (0.008 in.2) (10 AWG) and 8.2 mm2 (0.013 in.2) (8 AWG) complying with North American standards 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 DRH 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 DRH power cable

Table 3-2 lists the specifications of a DRH power cable.

Table 3-2 Specifications of a DRH power cable

3.4 DRH Alarm Cable

The DRH alarm cable, a shielded straight-through cable, transmits alarm signals from an external device to a DRH so that the base station monitors the operating status of external devices. The DRH alarm cable is 5 m (16.4 ft).

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Exterior

(1) DB15 male connector

(2) Cord end terminal

DRH Alarm Port

Pin of the 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 RXX1.11

Green

X7

APM RX+

X1.13

White and brown

Twisted pair

X8

APM TXX1.14

Brown

X9

APM TX+

An alarm cable has a DB15 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

Pin Assignment

Table 3-3 describes the pin assignment for the wires of a DRH alarm cable.

Table 3-3 Pin assignment for the wires of a DRH alarm cable

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Exterior

(1) DLC connector

(2) Breakout cable

(3) Label on the breakout cable

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 DCU and DRH or interconnect two DRHs. The maximum length of the multimode fiber optic cable between the DCU and DRH is 150 m (492.12 ft) and the multimode fiber optic cable between two DRHs 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 DCU side and 70 m (229.66 ft) on DRH 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.

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



When a multimode fiber optic cable connects a DCU and a DRH, the breakout cable on the DCU side is 0.34 m (1.12 ft) and the breakout cable on the DRH side is 0.03 m (0.098 ft).



When a multimode fiber optic cable connects two DRHs, 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 DCU and a

DRH.

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Figure 3-6 Connection of the multimode fiber optic cable between a DCU and a DRH

(1) Multimode fiber optic cable between a DCU and a DRH

(1) DLC connector

(2) Breakout cable

(3) Label on the breakout cable

(4) FC connector

(5) LC connector

(6) SC connector

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.

Figure 3-7 Single-mode pigtail

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(1) Single-mode pigtail between a DCU and an ODF

(2) Single-mode pigtail between a DRH and an ODF

Remote Distance

Selection Principle

Remarks

Less than or equal to 100 m (328.08 ft)

Multimode fiber optic cable

Connects the DCU and DRH When it connects two DRHs, the distance

between the two DRHs 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 DCU and DRH

Recommended: single-mode fiber optic cable (single-mode pigtail and trunk single-mode fiber optic cable)

The single-mode pigtail at the DRH or DCU side is connected to the trunk single-mode fiber optic cable using the ODF.



When a single-mode pigtail connects a DCU and an ODF, the breakout cables on the DCU 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 a DRH and an ODF, the breakout cables on the DRH 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

Selection Principles

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

Table 3-4 Principles for selecting CPRI fiber optic cables

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Remote Distance

Selection Principle

Remarks

Greater than 150 m (492.12 ft)

Single-mode fiber optic cable (single-mode pigtail and trunk single-mode fiber optic cable)

Label

Installation Position

Multimode Fiber Optic Cable Between a DCU and an DRH

Multimode Fiber Optic Cable Between Two DRHs

Single-Mode Pigtail

1A

CPRI RX port on the DRH

CPRI RX port on DRH 1

RX port on the DCU or CPRI RX port on the DRH

1B

CPRI TX port on the DRH

CPRI TX port on DRH 1

TX port on the DCU or CPRI TX port on the DRH

2A

TX port on the DCU

CPRI TX port on DRH 0

ODF

2B

RX port on the DCU

CPRI RX port on DRH 0

ODF

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

3.6 DRH RF Jumper

The 1/2" DRH RF jumper transmits and receives RF signals between a DRH and an antenna. A fixed-length RF jumper used by an DRH 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 a DRH has a maximum length of 10 m (32.81 ft).

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Exterior

(1) DIN male connector



When the distance between an DRH 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 DRH, and the other end is connected to the antenna.



When the distance between a DRH 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.).

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

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4 DRH Auxiliary Devices

This chapter describes DRH auxiliary devices.

4.1 IFS06

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

Exterior

Figure 4-1 shows an IFS06.

Figure 4-1 IFS06

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(1) Cable tray

(2) Ground bar 2

(3) Rear foot

(4) Front foot

(5) Adjustable beam

(6) Ground bar 1

(7) Main frame

-

Function

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)

Specifications



It can be installed on the ground.



It supports the installation of six DRHs.



The upper and lower adjustable beams on an IFS06 can be moved up and down to fit for heights of DRHs.

Table 4-1 describes IFS06 specifications.

Table 4-1 IFS06 specifications

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5.1 U.S.A Regulatory Compliance

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:



This device does not cause harmful interference.



This device must accept any interference received, including interference that may cause undesired operation.

If this device is modified without authorization from Huawei, the device may no longer comply with FCC requirements for Class B digital devices. In that a case, your right to use the device may be limited by FCC regulations. Moreover, you may be required to correct any interference to radio or television communications at your own expense.

5 Appendix

This device has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.

This device generates, uses and radiates radio frequency energy. If it is not installed and used in accordance with the instructions, it may cause harmful interference to radio communications.

However, there is no guarantee that interference will not occur in a particular installation. If this device does cause harmful interference to radio or television reception, which can be determined by turning the device off and on, the user may take one or more of the following measures:



Reorient or relocate the receiving antenna.



Reinforce the separation between the device and receiver.



Connect the device into an outlet on a circuit different from that to which the receiver is connected.



Consult the dealer or an experienced radio or TV technician for assistance.

This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. The minimum installed and operated distance between the radiator and your body of each model as below. For DRH3985A, please keep 2.54m or more. For DRH3917A, please keep 2.17m or more.

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5 Appendix

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Huawei Proprietary and Confidential

23

For DRH3919A, please keep 2.24m or more. WARNING: This is NOT a CONSUMER device. It is designed for installation by FCC

LICENSEES and QUALIFIED INSTALLERS. You MUST have an FCC LICENSE or express consent of an FCC Licensee to operate this device. Unauthorized use may result in significant forfeiture penalties, including penalties in excess of $100,000 for each continuing violation.

The manufacturer is not responsible for any radio or TV interference caused by unauthorized modifications to this equipment. Such modifications could void the user authority to operate the equipment. .

5.2 Canada Regulatory Compliance

5.2.1 RSS-Gen statement

This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause

interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.

Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.

5.2.2 RSS-102 statement:

The device meets the exemption from the routine evaluation limits in section 2.5 of RSS 102 and compliance with RSS-102 RF exposure, users can obtain Canadian information on RF exposure and compliance.

Le dispositif rencontre l'exemption des limites courantes d'évaluation dans la section 2.5 de RSS 102 et la conformité à l'exposition de RSS-102 rf, utilisateurs peut obtenir l'information canadienne sur l'exposition et la conformité de rf.

This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. The minimum installed and operated distance between the radiator and your body of each model as below. For DRH3985A, please keep 2.54m or more. For DRH3917A, please keep 2.17m or more.

DRH3985A&3917A&3919A&3919B Hardware Description

5 Appendix

Issue Draft A (2013-08-18)

Huawei Proprietary and Confidential

24

For DRH3919A, please keep 2.24m or more. Cet équipement est conforme à l'exposition aux rayonnements IC limites établies pour

unenvironnement non contrôlé. Cet émetteur ne doit pas être Co-placé ou ne fonctionnant en même temps qu'aucune autre antenne ou émetteur.La distance d’installation et d’opération entre le radiateur et votre corps de chaque équipement doit être au minimum :

Pour DRH3985A, 2.54m ou plus. Pour DRH3917A, 2.17m ou plus. Pour DRH3919A, 2.24m ou plus.

Some Information

(a) The nominal passband gain is 37dB; (b) The nominal bandwidth for each band is as follows:

850M (DRH3985A): 27.95MHz AWS (DRH3917A): 48.05MHz 1900M (DRH3919A): 63.07MHz;

(c) The rated mean output power is 2*20W; (d) The input and output impedance are 50Ω; (e) The following notice:”The Manufacture’s rated output power of this equipment is for

single carrier operation. For situations when multiple carrier signals are present, the rating would have to be reduced by 3.5dB, especially where the output signal is re-radiated and can cause interference to adjacent band users. This power reduction is to be by means of input power or gain reduction and not by an attenuator at the output of the device.”

Huawei DRH3985A, DRH3917A, DRH3919A User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

About This Document

Purpose

Product Version

Scope of application

Intended Audience

Organization

Contents

1 Changes in DRH 3985A&3917A&3919A&3919B

Hardware Description

2 DRH Introduction

2.1 DRH Exterior

2.2 DRH Functions

2.3 DRH Technical Specifications

2.4 DRH Ports

2.5 DRH Indicators

2.6 Optical Modules

2.7 DRH Antennas(Only for U.S.A and Canada)

3 DRH Cables

3.1 DRH Cable List

3.2 DRH PGND Cable

3.3 DRH Power Cable

3.4 DRH Alarm Cable

3.5 CPRI Fiber Optic Cable

3.6 DRH RF Jumper

4 DRH Auxiliary Devices

4.1 IFS06

5 Appendix

5.1 U.S.A Regulatory Compliance

5.2 Canada Regulatory Compliance

5.2.1 RSS-Gen statement

5.2.2 RSS-102 statement:

Huawei DRH3985A, DRH3917A, DRH3919A User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

About This Document

Purpose

Product Version

Scope of application

Intended Audience

Organization

Contents

1 Changes in DRH 3985A&3917A&3919A&3919B Hardware Description

2 DRH Introduction

2.1 DRH Exterior

2.2 DRH Functions

2.3 DRH Technical Specifications

2.4 DRH Ports

2.5 DRH Indicators

2.6 Optical Modules

2.7 DRH Antennas(Only for U.S.A and Canada)

3 DRH Cables

3.1 DRH Cable List

3.2 DRH PGND Cable

3.3 DRH Power Cable

3.4 DRH Alarm Cable

3.5 CPRI Fiber Optic Cable

3.6 DRH RF Jumper

4 DRH Auxiliary Devices

4.1 IFS06

5 Appendix

5.1 U.S.A Regulatory Compliance

5.2 Canada Regulatory Compliance

5.2.1 RSS-Gen statement

5.2.2 RSS-102 statement:

1 Changes in DRH 3985A&3917A&3919A&3919B

Hardware Description