Figure 12-20 Installing a monitoring signal cable for the EMUA
Step 2 Route the cable by referring to 12.4.1 Cabling Requirements, and then use cable ties to bind
the cable.
Step 3 Label the installed cables. For details, see Attaching an L-Shaped Label.
----End
12.4.6 Installing a BBU Alarm Cable
A BBU alarm cable transmits alarm signals from external alarm equipment to a BBU.
Procedure
Step 1 Install a BBU alarm cable, as shown in Figure 12-21. For details about a BBU alarm cable, see
BBU Alarm Cable.
1. Link the RJ45 connector at one end of the BBU alarm cable to the port labeled EXT-ALM0/
EXT-ALM1 on the UPEU in the BBU.
2. Link the RJ45 connector at the other end to external alarm equipment.
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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