Figure 5-116
BBU alarm cable
(1) RJ-45 connector
Pin Assignment
describes the pin assignment for the wires of the BBU alarm cable.
Table 5-79
Pin assignment for the wires of the BBU alarm cable
BBU
Alarm
Port
Pin on the
RJ45
Connecto
r at One
End
Wire
Color
Wire
Type
Pin on the
RJ45
Connecto
r at the
Other
End
Description
EXT-
ALM1
X1.1
White and
orange
Twisted
pair
X2.1
Boolean value input 4+
X1.2
Orange
X2.2
Boolean value input 4-
(GND)
X1.3
White and
green
Twisted
pair
X2.3
Boolean value input 5+
X1.6
Green
X2.6
Boolean value input 5-
(GND)
X1.5
White and
blue
Twisted
pair
X2.5
Boolean value input 6+
X1.4
Blue
X2.4
Boolean value input 6-
(GND)
X1.7
White and
brown
Twisted
pair
X2.7
Boolean value input 7+
X1.8
Brown
X2.8
Boolean value input 7-
(GND)
EXT-
ALM0
X1.1
White and
orange
Twisted
pair
X2.1
Boolean value input 0+
X1.2
Orange
X2.2
Boolean value input 0-
(GND)
5 BTS3900 Cables
BTS3900
Hardware Description
5-88
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 04 (2011-02-15)