Figure 12-4 Installing a BBU
----End
12.3.2 Installing a DCDU-03B
This section describes the procedure for installing a DCDU-03B in a 19-inch rack.
Context
When a WGRU is configured, the WGRU is installed in the 1 U space above the BBU, and a
DCDU-03B is installed in the 1 U space above the WGRU.
Procedure
Step 1 Slide a DCDU-03B along the guide rails into the cabinet, and then tighten four M6x16 screws
on the panel until the tightening torque reaches 3 N·m, as shown in Figure 12-5.
Figure 12-5 Installing a DCDU-03B
----End
12.3.3 (Optional) Installing a WGRU
This section describes the procedure and precautions to be taken for installing a WGRU and
related cables in a 19-inch rack.
DBS3900 (Ver.B)
Installation Guide
12 Indoor Scenario with DC Power Supply (BBU Installed in
a 19-Inch Rack)
Issue 06 (2011-09-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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