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Huawei RRU3908 V2, Hardware Description

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About This Document

Purpose

This document describes the exterior, panels, LEDs, and cables of the RRU3908 V2.

Product Version

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

Product Name

Product Version

RRU3908 V2 (hereinafter referred to as
RRU3908)

SRAN V100R002

SRAN V100R003

eRAN V100R002C00

 

Intended Audience

This document is intended for:

l

BTS installation engineers

l

Site maintenance engineers

l

System engineer

Organization

1 Changes in the RRU3908 V2 Hardware Description

This chapter describes the changes in the 

RRU3908 V2 Hardware Description

.

2 Introduction to the RRU3908

The RRU is the outdoor remote radio unit.

RRU3908 V2
Hardware Description

About This Document

Issue 02 (2010-10-25)

Huawei Proprietary and Confidential

Copyright © Huawei Technologies Co., Ltd.

iii

Summary of Contents for RRU3908 V2

Page 1: ...RRU3908 V2 V100 Hardware Description Issue 02 Date 2010 10 25 HUAWEI TECHNOLOGIES CO LTD ...

Page 2: ......

Page 3: ...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 ensu...

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Page 5: ... eRAN V100R002C00 Intended Audience This document is intended for l BTS installation engineers l Site maintenance engineers l System engineer Organization 1 Changes in the RRU3908 V2 Hardware Description This chapter describes the changes in the RRU3908 V2 Hardware Description 2 Introduction to the RRU3908 The RRU is the outdoor remote radio unit RRU3908 V2 Hardware Description About This Document...

Page 6: ...ituation which if not avoided could result in equipment damage data loss performance degradation or unexpected results Indicates a tip that may help you solve a problem or save time Provides additional information to emphasize or supplement important points of the main text General Conventions The general conventions that may be found in this document are defined as follows Convention Description ...

Page 7: ...ment are defined as follows Convention Description Boldface Buttons menus parameters tabs window and dialog titles are in boldface For example click OK Multi level menus are in boldface and separated by the signs For example choose File Create Folder Keyboard Operations The keyboard operations that may be found in this document are defined as follows Format Description Key Press the key For exampl...

Page 8: ...he 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 About This Document RRU3908 V2 Hardware Description vi Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd Issue 02 2010 10 25 ...

Page 9: ... the AC RRU 3 6 3 5 Monitoring Signal Cable for the AC RRU 3 8 3 6 CPRI Optical Cable 3 9 3 7 Alarm Cable for the DC RRU 3 11 3 8 RF Jumper for the RRU 3 13 3 9 Interconnect Jumper for the RRU 3 13 3 10 AISG Multi Wire Cable for the RRU 3 14 3 11 AISG Extension Cable for the RRU 3 15 4 Auxiliary Devices of the RRU 4 1 4 1 AC Power Surge Protection Box 4 2 4 2 IFS06 4 3 4 3 OCB 4 5 RRU3908 V2 Hardw...

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Page 11: ... box and the external power equipment 3 7 Figure 3 7 Monitoring signal cable of the AC RRU 3 9 Figure 3 8 Multi mode optical cable 3 10 Figure 3 9 Single mode optical cable 3 10 Figure 3 10 Alarm cable 3 12 Figure 3 11 RF jumper 3 13 Figure 3 12 Interconnect jumper 3 13 Figure 3 13 AISG multi wire cable 3 14 Figure 3 14 AISG extension cable 3 15 Figure 4 1 AC power surge protection box 4 2 Figure ...

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Page 13: ... assignment for the wires of the monitoring power cable European standard 3 9 Table 3 9 Labels and recommended connections for the branch cables of the multi mode optical cable between the BBU and RRU 3 11 Table 3 10 Labels and recommended connections for the branch cables of the multi mode optical cable between RRUs 3 11 Table 3 11 Labels and recommended connections for the branch cables of the s...

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Page 15: ...0 05 20 this issue incorporates the following changes Topic Change Description 3 7 Alarm Cable for the DC RRU The description on the pins of the RRU alarm cable is optimized Compared with issue 01 2010 05 20 this issue does not remove any information 01 2010 05 20 This is the draft release RRU3908 V2 Hardware Description 1 Changes in the RRU3908 V2 Hardware Description Issue 02 2010 10 25 Huawei P...

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Page 17: ...ls digital to analog D A conversion and up conversion of RF signals to transmit band l Multiplexes RX and TX signals to enable these signals to share the same antenna path and filters RX and TX signals 2 1 Physical Exterior The RRU has a modular structure The external ports of the RRU are located at the bottom and in the cabling cavity of the RRU 2 2 Panels of the RRU The RRU module has a bottom p...

Page 18: ...ocated at the bottom and in the cabling cavity of the RRU Figure 2 1 shows the DC RRU Figure 2 1 DC RRU Figure 2 2 shows the AC RRU 2 Introduction to the RRU3908 RRU3908 V2 Hardware Description 2 2 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd Issue 02 2010 10 25 ...

Page 19: ...ttom panel a cabling cavity panel and an area attached with LEDs Figure 2 3 shows the panels of the DC RRU RRU3908 V2 Hardware Description 2 Introduction to the RRU3908 Issue 02 2010 10 25 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 2 3 ...

Page 20: ...ls of the DC RRU Figure 2 4 shows the panels of the AC RRU 2 Introduction to the RRU3908 RRU3908 V2 Hardware Description 2 4 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd Issue 02 2010 10 25 ...

Page 21: ...of the RRU Table 2 1 Ports buttons and LEDs on the panels of the RRU module Item Label Description 1 LEDs RUN Refer to 2 3 LEDs on the RRU ALM RRU3908 V2 Hardware Description 2 Introduction to the RRU3908 Issue 02 2010 10 25 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 2 5 ...

Page 22: ...ut DC power supply socket 2 3 LEDs on the RRU The six LEDs on the RRU are used to display the running status of the RRU For details on the positions of the LEDs on the panel of the RRU see 2 2 Panels of the RRU Table 2 2 describes the LEDs on the RRU Table 2 2 LEDs on the RRU LED Color Status Description RUN Green On There is power supply but the board is faulty Off There is no power supply or the...

Page 23: ...king on for 1s and off for 1s A VSWR alarm is generated on the ANT_TX RXA port Blinking on for 0 125s and off for 0 125s A VSWR related alarm is generated on both the ANT_TX RXA port and the ANT_TX RXB port CPRI0 Red Green Steady green The CPRI link is functional Steady red The optical module fails to receive signals Blinking red on for 1s and off for 1s The CPRI link is out of lock Off The SFP mo...

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Page 25: ... monitoring signal cable for the AC RRU feeds power to the AC RRU and monitors the running status of the RRU 3 6 CPRI Optical Cable The CPRI optical cable transmits CPRI signals between the BBU and the RRU or between RRUs 3 7 Alarm Cable for the DC RRU The alarm cable for the RRU is a shielded straight through cable The cable transmits alarm signals from the external equipment to the DC RRU and mo...

Page 26: ...he RRU When the distance between the RRU and the RCU is more than 5 m an AISG multi wire cable is not long enough to connect the RRU and RCU In this case the AISG extension cable is used to extend the AISG multi wire cable for transmitting RS485 signals 3 RRU Cables RRU3908 V2 Hardware Description 3 2 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd Issue 02 2010 10 25 ...

Page 27: ...ND bar 3 3 Power Cable for the DC RRU Easy power receptacle pressfit type connector NEG 0 and RTN 0 ports on the RRU Bare wire Power equipment 3 4 AC Power Cable for the AC RRU 3 pin round shaped connector AC in port on the AC DC conversion module of the AC RRU OT terminal AC surge protection box Bare wire Power equipment 3 5 Monitor ing Signal Cable for the AC RRU DB15 connector EXT_ALM port on t...

Page 28: ...nnector Standard AISG male connector on the RCU or on the AISG extension cable 3 11 AISG Extensi on Cable for the RRU Standard AISG male connector Standard AISG male connector on the RCU Standard AISG female connector Standard AISG female connector on the AISG multi wire cable 3 2 RRU PGND Cable The PGND cable ensures the grounding of the RRU Exterior The PGND cable is green and yellow and has a c...

Page 29: ...nd bar on site OT terminals need to be added on site You can determine the color of the cable and whether to use 2 hole terminals according to local standards Figure 3 2 shows the 2 hole OT terminal Figure 3 2 2 hole OT terminal 3 3 Power Cable for the DC RRU The RRU power cable is the 48 V DC shielded power cable which is used to feed the 48 V DC power into the RRU Exterior The power cable has an...

Page 30: ...ower Cable for the AC RRU The AC power cable feeds AC power from external equipment to the AC RRU Exterior Figure 3 4 shows the power cable between the AC RRU and the external power equipment when the AC surge protection box is not configured Figure 3 4 Power cable between the AC RRU and the external power equipment 1 3 pin round connector 2 Bare wire Figure 3 5 shows the power cable between the A...

Page 31: ...uipment 1 OT terminal 2 Bare wire Pin Assignment Table 3 4 describes the pin assignment for the power cable between the AC RRU and the external power equipment Table 3 4 Pin assignment for the wires of the AC power cable between the AC RRU and the external power equipment One End AC RRU The Other End Power equipment Color Description X1 A Bare wire Brown L RRU3908 V2 Hardware Description 3 RRU Cab...

Page 32: ...r cable between the AC surge protection box and the power equipment Table 3 6 Pin Assignment for the wires of the power cable between the AC surge protection box and the power supply device One End AC surge protection box The Other End Power equipment Color Description X3 Bare wire Brown L X1 Blue N X2 Green and yellow PE 3 5 Monitoring Signal Cable for the AC RRU The monitoring signal cable for t...

Page 33: ...tor Pin Assignment Table 3 7 and Table 3 8 describe the pin assignment for the wires of the monitoring power cable Table 3 7 Pin assignment for the wires of the monitoring power cable North American standard Wire Type Color NEG Blue RTN Black Table 3 8 Pin assignment for the wires of the monitoring power cable European standard Wire Type Color NEG Blue RTN Brown 3 6 CPRI Optical Cable The CPRI opt...

Page 34: ...e is used for connection between RRUs the branch cables on both RRU sides are 0 03 m long A single mode optical cable has a DLC connector at one end and two FC connectors at the other end as shown in Figure 3 9 Figure 3 9 Single mode optical cable 1 DLC connector 2 Branch cable 3 Label on the branch cable 4 FC connector When a single mode optical cable is used for connection between the BBU and th...

Page 35: ...ge CPRI RX port on the RRU 1 1B Gray CPRI TX port on the RRU 1 2A Orange CPRI TX port on the RRU 0 2B Gray CPRI RX port on the RRU 0 Table 3 11 Labels and recommended connections for the branch cables of the single mode optical cable and recommended connections Label Color Installation Position 1A Yellow RX port on the BBU or CPRI RX port on the RRU 1B Blue TX port on the BBU or CPRI TX port on th...

Page 36: ...rt Pin of the DB15 Connecto r Wire Color Wire Type Cord End Terminal Description Dry contact X1 2 White blue Twisted pair X2 SWITCH_INPUT0 X1 3 Blue X3 SWITCH_INPUT0 GND X1 6 White orange Twisted pair X4 SWITCH_INPUT1 X1 7 Orange X5 SWITCH_INPUT1 GND RS485 X1 10 White green Twisted pair X6 APM RX X1 11 Green X7 APM RX X1 13 White brown Twisted pair X8 APM TX X1 14 Brown X9 APM TX 3 RRU Cables RRU3...

Page 37: ...th of the RF jumper should not exceed 2 m The RF jumper has a DIN male connector on one end and a connector made based on field requirements on the other end Figure 3 11 shows the RF jumper where both ends are DIN male connectors Figure 3 11 RF jumper 3 9 Interconnect Jumper for the RRU The interconnect jumper for the RRU connects the RX_IN OUT ports of two RRUs and transmits the RF signals betwee...

Page 38: ...aterproof connector at one end and an AISG standard female connector at the other end as shown in Figure 3 13 Figure 3 13 AISG multi wire cable Pin Assignment Table 3 13 describes the pin assignment for the wires of the AISG multi wire cable Table 3 13 Pin assignment for the wires of the AISG multi wire cable X1 End Pin of the DB9 Waterproof Connector X2 End Pin of the Standard AISG Female Connect...

Page 39: ...t the RRU and RCU In this case the AISG extension cable is used to extend the AISG multi wire cable for transmitting RS485 signals Exterior The AISG extension cable has a standard AISG male connector on one end and a standard AISG female connector on the other end as shown in Figure 3 14 Figure 3 14 AISG extension cable Pin Assignment Table 3 14 describes the pin assignment for the wires of the AI...

Page 40: ...e Description X1 1 X2 1 White and blue Twisted pair 12 V Blue X1 7 X2 7 White and orange Twisted pair DC Return A 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 3 RRU Cables RRU3908 V2 Hardware Description 3 16 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd Issue 02 2010 10 25 ...

Page 41: ...06 is used for installing RRUs indoors 4 3 OCB The Outdoor Cable Conversion Box OCB interconnects cables of different core diameters The power cables shipped with the RRU cannot support long distance power transfer Therefore when the power supply is far from the equipment the OCB can be used to connect the power cable of the RRU and a cable with a large core diameter which can transfer power for a...

Page 42: ...le 4 1 Specifications of the AC power surge protection box Item Description Height mm x Width mm x Depth mm 240 x 140 x 75 Installation mode Supports installation on the pole on the wall and assembled installation Surge protection class Differential mode common mode 60 kA 8 20 us Ports Table 4 2 describes the ports on the AC power surge protection box 4 Auxiliary Devices of the RRU RRU3908 V2 Hard...

Page 43: ...rnal ground cable Port for the ground cable of the RRU c Cabling cavity panel Nout Wiring post for the power cable Nin Lout Lin 4 2 IFS06 The Indoor Floor installation Support IFS06 is used for installing RRUs indoors Exterior Figure 4 2 shows the IFS06 RRU3908 V2 Hardware Description 4 Auxiliary Devices of the RRU Issue 02 2010 10 25 Huawei Proprietary and Confidential Copyright Huawei Technologi...

Page 44: ...an be moved up and down to fit for the height of the RRUs Structure The IFS06 consists of the main frame cable rack upper and lower adjustable beams and front and rear feet as shown in Figure 4 3 4 Auxiliary Devices of the RRU RRU3908 V2 Hardware Description 4 4 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd Issue 02 2010 10 25 ...

Page 45: ...OCB The Outdoor Cable Conversion Box OCB interconnects cables of different core diameters The power cables shipped with the RRU cannot support long distance power transfer Therefore when the power supply is far from the equipment the OCB can be used to connect the power cable of the RRU and a cable with a large core diameter which can transfer power for a long distance RRU3908 V2 Hardware Descript...

Page 46: ...application scenario of the OCB For details about the structure functions installation and maintenance of the OCB see the OCB User Guide 4 Auxiliary Devices of the RRU RRU3908 V2 Hardware Description 4 6 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd Issue 02 2010 10 25 ...

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