Figure 10-29 Installing a monitoring signal cable between the HEUA and the BBU
Step 2 Route the cable by referring to 10.4.1 Cabling Requirements, and then use cable ties to bind
the cable.
Step 3 Label the installed cables. For details, see Attaching an L-Shaped Label.
----End
10.4.7 Installing a CPRI Optical Cable
A CPRI optical cable transmits CPRI signals between a BBU and an RRU.
Context
l The single-mode optical module is labeled "SM" and multi-mode optical module is labeled
"MM".
l If the puller of an optical module is blue, the module is a single-mode optical module. If
the puller of an optical module is black or grey, the module is a multi-mode optical module.
l The optical module to be installed must have a matching rate with the corresponding CPRI
port.
CAUTION
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.
DBS3900 (Ver.B)
Installation Guide
10 Outdoor Scenario with AC Power Supply (BBU Installed
in an OMB)
Issue 06 (2011-09-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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