
DRH3980A&3909A&3918A&
3918B&3921A&3921B&3926A
Hardware Description
Issue DraftA (2013-08-10)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd..
Contents
About This Document.................................................................................................................... ii
Purpose...................................................................................................................................................................ii
Product Versions.....................................................................................................................................................ii
Scope of application...............................................................................................................................................ii
Intended Audience..................................................................................................................................................ii
Organization..........................................................................................................................................................iii
Contents ........................................................................................................................................... iv
1 Changes in the DRH3980A&3909A&3918A&3918B&3921A&3921B&3926A Hardware
Description ........................................................................................................................................1
2 DRH Introduction .........................................................................................................................2
2.1 DRH Exterior ...................................................................................................................................................2
2.2 DRH Functions.................................................................................................................................................3
2.3 DRH Technical Specifications .........................................................................................................................4
2.4 DRH Ports........................................................................................................................................................4
2.5 DRH Indicators ................................................................................................................................................6
3 DRH Cables....................................................................................................................................9
3.1 DRH Cable List................................................................................................................................................9
3.2 DRH PGND Cable.........................................................................................................................................10
3.3 DRH Power Cable..........................................................................................................................................10
3.4 DRH Alarm Cable..........................................................................................................................................12
3.5 CPRI Fiber Optic Cable .................................................................................................................................13
3.6 DRH RF Jumper.............................................................................................................................................16
4 DRH Auxiliary Devices .............................................................................................................18
4.1 IFS06..............................................................................................................................................................18