Huawei DBS3900 Hardware Description page 23

DBS3900
RRU3252/RRU3256 Hardware Description
Figure 3-7 Connections for a single-mode fiber optic cable between a BBU and an ODF or
between an ODF and an RRU
(1) Single-mode CPRI fiber optic cable between a BBU
and an ODF
A CPRI fiber optic cable must be connected to optical modules in the CPRI ports. A multi-mode fiber optic
cable and single-mode fiber optic cable are connected to multi-mode optical modules and single-mode optical
modules, respectively.
Pin Assignment
Table
fiber optic cables of an optical assembly.
Table 3-5 Labels on and recommended connections for optical fibers of an optical assembly
between a BBU and an RRU
Label
1A
1B
2A
2B
Table 3-6 Labels on and recommended connections for optical fibers of a fiber optic cable
between RRUs
Label
1A
1B
Issue Draft A (2012-11-30)
NOTE
3-5, Table 3-6, and
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Copyright © Huawei Technologies Co., Ltd.
(2) Single-mode CPRI fiber optic cable between an
ODF and an RRU
Table 3-7 describe the labels on and recommended connections for
Connected To
CPRI RX port on the RRU
CPRI TX port on the RRU
TX port on the BBU
RX port on the BBU
Connected To
CPRI RX port on RRU 1
CPRI TX port on RRU 1
3 RRU Cables
16