
Installation Guide
18
3.4.3 22-Pin Connector Definition
With the 22-pin connector, installers can simply connect the power, video and
RS-485 cables to the dome at once. Particularly, the alarm pins are
serviceable for connecting alarm input and output devices, such as alarm
sensors, sirens or flashing lights with the surveillance system. For the
definition of each pin, please refer to the list below.
The 22-pin connector definition is listed as below.
Pin Definition Cable
1
AC 24-1/DC (+)
20AWG
2
ALM NC
3
AC 24-2/DC (-)
20AWG
4
ALM NO
5
FG 20AWG
6
ALM COM
7
T+
8
R-
9
T-
10
R+
24AWG
11
ISOG
12
ALM-1
13
ALM-3
14
ALM-2
15
ALM-4
16
ALM-5
17
ALM-6
18
ALM-7
19
ALM-8
20
ALM GND
21
VGND
22
Video
24AWG
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