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RRU3269
Installation Guide
Context
A CPRI optical fiber transmits CPRI signals between a BBU and an RRU.
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 9-26.
Figure 9-26 Installing an optical module
Step 2 Install CPRI optical fibers.
Issue Draft B (2018-05-15)
The performance of an optical module may deteriorate if it is exposed to the air for a long
time. Therefore, after installing the optical module and before connecting the optical fiber,
keep the dustproof cap in the port of the optical module.
The CPRI optical cables must be correctly connected in one time during the installation.
Otherwise, the RRU may become faulty, causing cells to fail to provide services.
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9 Installing RRU Cables
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