2.1 Reference Documents.....................................................................................................................................................7

2.2 Preparing Tools and Instruments....................................................................................................................................7

2.3 Requirements for Installation Personnel.........................................................................................................................8

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

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

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

5.1 Information About the Installation...............................................................................................................................13

5.1.1 RHUB3908 Installation Scenarios.............................................................................................................................13

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

Issue 08 (2015-01-15)

Huawei Proprietary and Confidential

iii