Huawei DBS3900 Hardware Description page 14

DBS3900
RRU3252/RRU3256 Hardware Description
Label
Issue Draft A (2012-11-30)
Color Status
Blinking red on for 1s and
off for 1s
Steady off
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Copyright © Huawei Technologies Co., Ltd.
2 RRU Introduction
Description
The CPRI link is out of lock possibly
because of mutual lock of dual-mode
clock sources or mismatched data
rates over CPRI ports. (You are
advised to check the system
configuration to rectify the fault.)
The SFP module is not properly
installed, or the optical module is
powered off.
7