Appendix b: alarm i/o definition, 4/8 channel model, 16 channel model – ARM Electronics DVRCD120 User Manual
Page 47
User’s Manual
46
Appendix B: Alarm I/O Definition
4/8 Channel Model:
16 Channel Model:
Pin
Definition
Pin
Definition
Pin
Definition
1
RS485 D+
8
Normal Close B
15
Alarm In 5 (for 8ch Model)
2
RS485 D-
9
Common Node B
16
Alarm In 6 (for 8ch Model)
3
Ground
10
Normal Open B
17
Alarm In 7 (for 8ch Model)
4
Normal Close A
11
Alarm In 1
18
Alarm In 8 (for 8ch Model)
5
Common Node A
12
Alarm In 2
19
N/A
6
Normal Open A
13
Alarm In 3
20
N/A
7
Ground
14
Alarm In 4
Pin
Definition
Pin
Definition
Pin
Definition
1
RS485 D+
12
Normal Close C
23
Alarm In 7
2
RS485 D-
13
Common Node C
24
Alarm In 8
3
Ground
14
Normal Open C
25
Alarm In 9
4
Normal Close A
15
Ground
26
Alarm In 10
5
Common Node A
16
Ground
27
Alarm In 11
6
Normal Open A
17
Alarm In 1
28
Alarm In 12
7
Ground
18
Alarm In 2
29
Alarm In 13
8
Normal Close B
19
Alarm In 3
30
Alarm In 14
9
Common Node B
20
Alarm In 4
31
Alarm In 15
10
Normal Open B
21
Alarm In 5
32
Alarm In 16
11
Ground
22
Alarm In 6