Figure 5-16 Alarm Cable; Table 5-18 Pin Assignment For The Wires Of The Alarm Cable - Huawei BTS3900E GSM User Manual

5 BTS3900E Hardware
Appearance
The alarm cable has an DB15 male connector at one end and bare wires at the other end, as
shown in
external device.

Figure 5-16 Alarm cable

X2
X3
X12
X13
(1) DB15 male connector
Pin Assignment
Table 5-18

Table 5-18 Pin assignment for the wires of the alarm cable

X1 End (Pin on the
DB15 Connector)
X1.1
X1.6
X1.2
X1.7
X1.3
X1.8
X1.4
X1.9
X1.11
X1.12
X1.13
X1.14
5-20
Figure 5-16. A terminal needs to be added to the bare end according to the port on the
describes the pin assignment for the wires of the alarm cable.
Type
Twisted pair
Twisted pair
Twisted pair
Twisted pair
Twisted pair
Twisted pair
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W
(2) Bare wire
Color Signal
White SWITCH_H1
Blue GND
White SWITCH_H2
Orange GND
White SWITCH_H3
Green GND
White SWITCH_H4
Brown GND
Red PSU 485 TX-
Blue PSU 485 TX+
Red PSU 485 RX-
Orange PSU 485 RX+
BTS3900E GSM
User Guide
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