Replacing The Rhub3908 - Huawei DBS3900 Installation Manual

LampSite
Site Maintenance Guide
The RHUB3908 is an indoor convergence unit. It converges multiple pRRUs to the BBU3900.
Replacing the RHUB3908 interrupts services carried on the serving cell.
Prerequisites
l
l
l
Context
It takes about 10 minutes to replace the RHUB3908.
Procedure
l
Issue 05 (2015-01-15)
6
A new RHUB3908 is available.
The labels and connections of the cables connected to the RHUB3908 are recorded.
The following tools are available: a Phillips screwdriver, an ESD wrist strap, and a rubber
mallet.
Replace the RHUB3908 installed on a 19-inch rack, in a 19-inch cabinet or in a 19-Inch
Shelf.
NOTE
The procedures for replacing the RHUB3908 installed on a 19-inch rack are the same for replacing
the RHUB3908 installed in a 19-inch cabinet or in a 19-Inch Shelf. The following uses the RHUB3908
installed on a 19-inch rack as an example.
1. Power off the RHUB3908 by referring to
2. Record the cable connections.
3. Take insulation measures, and then remove all cables from the RHUB3908.
4. Use a torque screwdriver or Phillips screwdriver to remove the four screws on the
mounting ear of the RHUB3908, as shown in
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.

Replacing the RHUB3908

4.2 Powering Off the
Figure
6 Replacing the RHUB3908
RHUB3908.
6-1.
17