User's Manual

RRU3278
Installation Guide
8 Installing RRU Cables
Issue 05 (2017-03-10)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
67
Connector
Connected
to...
Connector
Connected to...
RRU PGND
Cable
OT terminal
(M6)
Ground
terminal on the
RRU
OT terminal
(M8)
Ground terminal
on the ground bar
RRU Power
Cable
Tool-less
female
connector
(pressfit type)
NEG(-) and
RTN(+) ports
on the RRU
Depending on the
power supply
equipment
External power
equipment
CPRI Fiber
Optic Cable
DLC connector
CPRI0/IR0 port
on the RRU
DLC connector
CPRI port on a
board in the BBU
or CPRI1/IR1
port on the
upper-level RRU
CPRI1/IR1 port
on the RRU
CPRI0/IR0 port
on the
lower-level RRU
or CPRI port on a
board in the BBU
RRU RF
Jumper
Type N
connector
One of the
ANT1 to ANT8
ports on the
RRU or the
CAL port on
the RRU
Type N
connector
Antenna system
RRU Alarm
Cable
DB15
waterproof
male connector
EXT_ALM
port on the
RRU
Cord end
terminal
External alarm
device
RRU AISG
Multi-Wire
Cable
DB9
waterproof
male connector
RET port on the
RRU
Standard AISG
female connector
Standard AISG
male connector
on the RCU or on
the AISG
extension cable
RRU AISG
Extension
Cable
Standard AISG
male connector
Standard AISG
female
connector on
the AISG
multi-wire
cable
Standard AISG
female connector
Standard AISG
male connector
on the RCU
8.5 Installing an RRU PGND Cable
This section describes how to install the protection ground (PGND) cable for a remote radio
unit (RRU).