Huawei RU3632, Installation Manual

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RRU3832&RRU3632
Installation Guide
9 Installing RU Cables
Issue 05 (2014-06-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
107
Step 3
Route the cable according to the instructions in 9.1 Cabling Requirements , and then use a
cable tie to bind the cable.
Step 4
Label the installed cable according to the instructions in Attaching a Cable-Tying Label.
----End
9.11 Installing a CPRI Fiber Optic Cable
This section describes the procedure for installing a CPRI fiber optic cable.
Prerequisites
Before the installation, single-mode optical modules can be distinguished from multi-mode
optical modules in either of the following ways:

SM and MM labels on an optical module: SM indicates a single-mode optical module,
and MM indicates a multi-mode optical module.

Color of the puller on an optical module: Blue indicates a single-mode optical module,
and black or gray indicates a multi-mode optical module.
The optical modules to be installed must match CPRI rates.
Context

For RU3632, A CPRI fiber optic cable transmits CPRI signals between a BBU and an
RU.

For RU3832, the CPRI fiber optic cable transmits CPRI signals between a BBU and an
RU or between RUs. When the fiber optic cable is used for connecting RUs, the end
labeled 1A and 1B is connected to the CPRI0 port on the cabling cavity of the
lower-level RU, and the end labeled 2A and 2B is connected to the CPRI1 port on the
cabling cavity of the upper-level RU.

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
RU.
Procedure
Step 1
Lower the pullers of two optical modules, insert one optical module into the CPRI0 port on
the RU and the other optical module into the CPRI port on the BBU, and raise the pullers, as
shown in
Figure 9-24 .