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Appendix A. External I/O Port (37pin DSUB)
Pin No.
Definition
Direction Pin No.
Definition
Direction
1 GND Power
20
Reserved
Input
2 GND Power
21
Reset
Alarm
Input
3
GND
Power
22
Day / Night output Output
4
GND
Power
23
Day / Night switch
Input
5
RX-232 (reserved) Output
24
Set Alarm
Input
6
TX-232 (reserved)
Input
25
VCR trigger
Input
7
Alarm NO
Output
26
Alarm In 13
Input
8
Alarm COM
Output
27
Alarm In 12
Input
9
Alarm NC
Output
28
Alarm In 11
Input
10
GND
Power
29
Alarm In 10
Input
11
GND
Power
30
Alarm In 9
Input
12
GND
Power
31
Alarm In 8
Input
13
GND
Power
32
Alarm In 7
Input
14
GND
Power
33
Alarm In 6
Input
15
GND
Power
34
Alarm In 5
Input
16
Alarm In 16
Input
35
Alarm In 4
Input
17
Alarm In 15
Input
36
Alarm In 3
Input
18
Alarm In 14
Input
37
Alarm In 2
Input
19
Alarm In 1
Input