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RRU3942
Installation Guide
Cable
RRU Power
Cable
RRU Alarm
Cable
CPRI Fiber
Optic Cable
(in multi-
mode
scenarios)
Issue ()
One End
Connector
Installation
Position
Easy power
NEG(-) and
receptacle
RTN(+) ports
(pressfit type)
on the RRU
connector
DB15 connector
EXT_ALM
port on the
RRU
DLC connector
CPRI0 port on
the RRU
CPRI1 port on
the RRU
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Copyright © Huawei Technologies Co., Ltd.
7 Installing RRU Cables
The Other End
Connector
Installation
Position
Easy power
One of RRU0 to
receptacle
RRU5 ports on
(pressfit type)
the EPU
connector
One of LOAD0 to
LOAD5 ports on
the DCDU-11B
Cord end
External alarm
terminal
device
DLC connector
GSM+UMTS
(GU) mode
CPRI port on the
GTMU in the
BBU
CPRI port on the
WBBP in the
BBU
GSM+LTE (GL)
mode
CPRI port on the
GTMU in the
BBU
CPRI port on the
LBBP in the BBU
UMTS+LTE
(UL) mode
CPRI port on the
WBBP in the
BBU
CPRI port on the
LBBP in the BBU
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