Rru Aisg Extension Cable - Huawei DBS3900 Hardware Description

DBS3900
RRU3252/RRU3256 Hardware Description
Pin Assignment
Table 3-9
Table 3-9 Pin assignment for the core wires of an AISG multi-wire cable
X1 End (Pin of the
Waterproofed
DB9 Male
Connector)
X1.1
X1.3
X1.5
X1.4
X1.9 is connected to
X1.4.
-
-

3.10 RRU AISG Extension Cable

This section describes the remote radio unit (RRU) AISG extension cable. When the distance
between an RRU and a remote control unit (RCU) is longer than 5 m, an AISG multi-wire cable
is not long enough to connect the RRU and the RCU. In this case, an AISG extension cable is
used to extend the AISG multi-wire cable for transmitting RS485 signals.
Exterior
An AISG extension cable has a standard AISG male connector at one end and a standard AISG
female connector at the other end, as shown in
Issue Draft A (2012-11-30)
describes the pin assignment for the core wires of an AISG multi-wire cable.
X2 End (Pin of the
Standard AISG
Female Connector)
X2.1
X2.3
X2.5
X2.4
-
X2.1 is connected to
X2.6.
X2.4 is connected to
X2.7.
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Color of Type of
the Core the Core
Wire Wire
White and
Twisted
blue
pair
Blue
White and
Twisted
orange
pair
Orange
White and -
green
- -
- -
- -
Figure 3-12.
3 RRU Cables
Description
+12 V
RS485 B
RS485 A
GND
GND
+12 V
GND
20