Huawei RRU3268 Installation Manual page 118

RRU3268
Installation Guide
Figure 9-26 Installing an optical module
l The performance of an optical module may deteriorate if it is exposed to the air for more
l The CPRI optical cables must be correctly connected in one time during the installation.
Step 2 Install CPRI optical cables.
l Ensuring that CPRI optical cables are correctly connected before the RRU is powered on.
l To avoid any damage to fiber optic cables, the cables connected to the RRU must be
l
Issue 10 (2015-12-30)
NOTICE
than 20 minutes. Therefore, insert a fiber optic cable into an unpacked optical module
within 20 minutes.
Otherwise, the RRU may become faulty, causing cells to fail to provide services.
NOTICE
Otherwise, the RRU may become faulty, causing cells to fail to provide services.
installed according to the installation process. For details about the installation process, see
9.3 Installation Process.
When installing CPRI optical cables for dual-fiber bidirectional optical modules, remove
the dustproof cap from the optical cable, and connect the end labeled 1A and 1B on the
optical cable to the optical module on the RRU side, as shown in
the DLC end labeled 2A and 2B to the CPRI port on the main control board (such as the
GTMU) or baseband processing board (such as the WBBP) in the BBU.
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9 Installing RRU Cables
Figure 9-27. Connect
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