ARM Electronics ARM HR Series - Manual (Page 4)

4
Pin Definition of Alarm I/O & RS-485, and Audio In
4CH models:
Pin Definition Pin Definition Pin Definition Pin Definition
1 Alarm Out Open 8 Audio In 1 15 RS485 D− 22 Reserved
2 Alarm Out COM 9 Audio In 3 16 Alarm In 2 23 Reserved
3
RS485 D+
10
Reserved
17
Alarm In 4
24
GND
4 Alarm In 1 11 Reserved 18 Reserved 25 GND
5 Alarm In 3 12 GND 19 Reserved
6 Reserved 13 GND 20 Audio In 2
7
Reserved
14
Alarm Out Close
21
Audio In 4
8CH models:
Pin Definition Pin Definition Pin Definition Pin Definition
1
Alarm Out Open
8
Audio In 1
15
RS485 D−
22
Audio In 6
2 Alarm Out COM 9 Audio In 3 16 Alarm In 2 23 Audio In 8
3 RS485 D+ 10 Audio In 5 17 Alarm In 4 24 GND
4 Alarm In 1 11 Audio In 7 18 Alarm In 6 25 GND
5
Alarm In 3
12
GND
19
Alarm In 8
6 Alarm In 5 13 GND 20 Audio In 2
7 Alarm In 7 14 Alarm Out Close 21 Audio In 4
16CH models:
Audio:
Pin Definition Pin Definition Pin Definition Pin Definition
1 Audio 1 8 Audio 15 15 Audio 4 22 GND
2 Audio 3 9 GND 16 Audio 6 23 GND
3
Audio 5
10
GND
17
Audio 8
24
GND
4 Audio 7 11 GND 18 Audio 10 25 Reserved
5 Audio 9 12 Call Audio 19 Audio 12
6 Audio 11 13 Main Audio 20 Audio 14
7
Audio 13
14
Audio 2
21
Audio 16
Alarm I/O & RS-485:
Pin Definition Pin Definition Pin Definition Pin Definition
1
Alarm Out Open
8
Alarm In 3
15
Reserved
22
Alarm In 13
2 Alarm Out COM 9 Alarm In 4 16 Reserved 23 Alarm In 14
3 RS485 D+ 10 Alarm In 5 17 Reserved 24 Alarm In 15
4 RS485 D− 11 Alarm In 6 18 Alarm In 9 25 Alarm In 16
5
Reserved
12
Alarm In 7
19
Alarm In 10
6 Alarm In 1 13 Alarm In 8 20 Alarm In 11
7 Alarm In 2 14 Alarm Out Close 21 Alarm In 12