Huawei RRU3260, Installation Manual, Page: 118 / 132

NOTE
l A DCDU-11B/DCDU-12B can supply power to a maximum of six RRUs. Ensure that the RRU
power cable is connected to one of LOAD0 to LOAD5 ports on the DCDU-11B/DCDU-12B.
l
One EPU can supply power to a maximum of six RRUs. Ensure that the RRU power cable is
connected to one of RRU0 to RRU5 ports on the EPU.
l When the RRU power cable is connected to the EPU, the blue core wire in the tool-less female
connector (pressfit type) is connected to the upper port on the EPU, and the black/brown core wire is
connected to the lower port on the EPU.
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:
l
SM and MM labels on an optical module: SM indicates a single-mode optical module,
and MM indicates a multi-mode optical module.
l 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.
NOTICE
The optical modules to be installed must match CPRI rates.
Context
l A CPRI fiber optic cable 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 .
RRU3260
Installation Guide
9 Installing RRU Cables
Issue 10 (2015-12-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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