11.1 Installation Clearance Requirements
In an indoor scenario with DC power supply, a BBU and DCDU-03B can be installed on a wall.
In this case, the DCDU-03B supplies power to the BBU.
Installation Clearance Requirements for a Separate Wall-Mounted BBU
Figure 11-1 shows the installation clearance requirements for a separate wall-mounted BBU.
Figure 11-1 Installation clearance requirements for a separate wall-mounted BBU
NOTE
l A minimum of 600 mm in front of the BBU is reserved for maintenance.
l A minimum of 20 mm above the BBU is reserved for maintenance.
l A minimum of 800 mm below the BBU is reserved for maintenance.
l A minimum of 50 mm on the left or right of the BBU is respectively reserved for maintenance.
Installation Clearance Requirements for a Wall-Mounted BBU and DCDU-03B
If a BBU and DCDU-03B are installed on a wall, a minimum of 100 mm between them must
be reserved for maintenance, as shown in Figure 11-2.
NOTE
A DCDU-03B must be installed close to a BBU.
DBS3900 (Ver.B)
Installation Guide
11 Indoor Scenario with DC Power Supply (BBU Installed
on a Wall)
Issue 06 (2011-09-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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