Alarm Cable Of The Rru; Figure 2-13 Alarm Cable - Huawei RRU User Manual

2 RRU and SRXU Hardware
Typical
Networking
Mode
4-way RX diversity

2.3.7 Alarm Cable of the RRU

The cable transmits the 2-channel Boolean alarm signals and 1-channel RS485 signals from
external devices to the RRU. Thus, the external signals are monitored.
Appearance
The cable has a DB15 male connector at one end and eight cord end terminals at the other end,
as shown in

Figure 2-13 Alarm cable

Pin Assignment
The cable can transmit 2-channel Boolean alarm signals and 1-channel RS485 signals.
2-12
2-18
Antenna Type and
Quantity of RRUs
One RRU
l
One SRXU
l
Figure 2-13.
NOTE
If the cord end terminals of the cable do no match the ports on the external devices, cut off the cord end
terminals and make proper terminals on site.
describes the pin assignment for the wires of the alarm cable.
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Cable Connection
Two antenna jumpers and one DC
l
power cable
The DIN connectors of the two antenna
l
jumpers are linked to the ANT_RXC
and ANT_RXD ports at the bottom of
the SRXU.
One end of the DC power cable is
l
connected to the RET/PWR_SRXU
port at the bottom of the RRU, and the
other end is connected to the
PWR_SRXU socket at the bottom of
the SRXU.
Issue 01 (2008-04-18)
RRU
User Guide
Table