Huawei DBS3900 Installation Manual page 153

DBS3900 (ICR)
Installation Guide
The performance of an optical module that is exposed to the air for more than 20 minutes may
be abnormal. Therefore, you must insert an fiber optic cable into an unpacked optical module
within 20 minutes.
Procedure
Step 1 Install an optical module on the BBU side, as shown in
1.
2.
3.
4.
Figure 15-43 Removing the dustproof cap from the port
Figure 15-44 Installing an optical module
Step 2 Install an optical cable, as shown in
1.
2.
Issue 12 (2015-04-30)
NOTICE
Remove the dustproof caps from the CPRI ports on the BBU boards.
Lower the puller on the optical module.
Insert the optical module into the CPRI port.
Raise the puller on the optical module.
Remove the dustproof caps from the connectors at the end labeled 2A and 2B on the optical
cable, and insert the connectors into the optical module on the BBU.
Route the CPRI optical cable along the right side of the ICR and into the cable trough.
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Figure 15-43
Figure 15-45, Figure 15-46, and
15 Installing Cables
and Figure 15-44.
Figure 15-47.
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