Installing A Gps Clock Signal Cable - Huawei DBS3900 Installation Manual

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DBS3900 (Ver.B)
Installation Guide
Step 4 Attach labels on the optical cable. For details, see Attaching a Sign Plate Label.
Step 5 Coil the optical fiber with winding plastic tape at the end connected to the BBU. The tape is
coiled between the optical connector and the first cable tie on the cabinet, as shown in
11-27.
Figure 11-27 Coiling the optical fiber with winding plastic tape
----End

11.4.8 Installing a GPS Clock Signal Cable

The GPS clock signal cable is an optional cable that transmits GPS clock signals from the GPS
antenna system to the BBU. The GPS clock signals serve as the clock reference of the BBU.
Context
Procedure
Step 1 Remove the two M3 screws on the panel, and then pull out the USCU, as shown in
11-28.
Figure 11-28 Removing the USCU.
Step 2 Install a satellite receiver on the USCU, as shown in
1.
Issue 06 (2011-09-15)
NOTE
Only a dual-satellite receiver needs to be installed onsite.
Remove the three M1.6 screws from the USCU.
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Copyright © Huawei Technologies Co., Ltd.
11 Indoor Scenario with DC Power Supply (BBU Installed
Figure
11-29.
on a Wall)
Figure
Figure
395

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