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RRU3832&RRU3632
Installation Guide
l
l
Procedure
Step 1 Lower the pullers of two optical modules, insert one optical module into the CPRI0 port on the
RRU and the other optical module into the CPRI port on the BBU, and raise the pullers, as shown
in
Figure
Figure 9-24 Installing an optical module
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.
Step 2 Connect the end labeled 1A and 1B of the fiber optic cable to the optical module on the RRU
side, as shown in
Issue 05 (2014-06-30)
labeled 1A and 1B is connected to the CPRI0 port on the cabling cavity of the lower-level
RRU, and the end labeled 2A and 2B is connected to the CPRI1 port on the cabling cavity
of the upper-level RRU.
For details about CPRI fiber optic cable connections, see section "CPRI Cable Connections"
in the BBU3900 Hardware Description or DBS3900 Hardware Description.
Following is the procedure for installing a CPRI fiber optic cable between a BBU and an
RRU.
9-24.
NOTICE
Figure
9-25.
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9 Installing RRU Cables
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