Rru Rf Jumper; Rru Alarm Cable - Huawei DBS3900 Hardware Description

DBS3900
RRU3253 Hardware Description
Label
2A
2B
Table 3-6 Labels on and recommended connections for optical fibers of a single-mode optical
assembly between a BBU and an ODF or between an ODF and an RRU
Label
1A
1B
2A
2B

3.5 RRU RF Jumper

A 1/2" RRU RF jumper transmits and receives RF signals.
Exterior
An RF jumper has a Type N male connector at both ends, as shown in
Figure 3-7 RF jumper
(1) Type N male connector

3.6 RRU Alarm Cable

An RRU alarm cable, a shielded straight-through cable, transmits alarm signals from an external
device to RRUs so that the base station can monitor the operating status of external devices.
Exterior
An alarm cable has a DB9 connector at one end and eight cord end terminals at the other end,
as shown in
Issue 01 (2012-11-30)
Figure 3-8.
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Copyright © Huawei Technologies Co., Ltd.
Connected To
CPRI TX port on RRU 0
CPRI RX port on RRU 0
Connected To
RX port on the BBU or CPRI RX port on the RRU
TX port on the BBU or CPRI TX port on the RRU
ODF
ODF
3 RRU Cables
Figure 3-7.
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