Inter-Rru Rf Cable; Rru Aisg Multi-Wire Cable - Huawei RRU3942 Hardware Description

RRU3942
Hardware Description
Figure 3-9 RF jumper
(1) DIN male connector

3.7 Inter-RRU RF Cable

An inter-RRU RF cable connects the RX_IN/OUT ports on two RRUs in the same cell and
transmits RF signals between the RRUs. The maximum length of the inter-RRU RF cable is 2
m (6.56 ft.).
Exterior
Figure 3-10
Figure 3-10 Inter-RRU RF cable
(1) DB2W2 connector

3.8 RRU AISG Multi-Wire Cable

An RRU AISG multi-wire cable connects an RRU and an RCU to transmit control signals from
a base station to an RET antenna. When the RRU is connected to the RET antenna, an AISG
multi-wire cable transmits RS485 signals. The maximum length of the AISG multi-wire cable
is 5 m (16.40 ft.).
An RCU is a driving motor used for the phase shifter in the RET antenna. It receives control commands from a
base station and runs the commands to drive the stepper motor. Using a gear, the stepper motor drives the
adjustable phase shifter in the antenna and changes the downtilt angle.
Exterior
An AISG multi-wire cable has a waterproofed DB9 male connector at one end and a standard
AISG female connector at the other end, as shown in
Issue 02 (2012-06-29)
shows an inter-RRU RF cable with a DB2W2 connector at each end.
NOTE
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Figure 3-11.
3 RRU Cables
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