DVR operation manual
7
7 GPS Antenna jack
8 Wifi antenna interface
9
3G module
antenna
interface
User IO instructions
:
1
Alarm Input 1
2
Alarm Input 3
3
Switch input 1
4
Alarm switch
output 1
5
High voltage alarm
output
6
Ground (GND)
7
485 B
8
RS232_R
9
Alarm Input 2
10
Alarm Input 4
11
Switch input2
12
Alarm switch
output 2
13
Alarm ground(COM)
14
Ground (GND)
15
485 A
16
RS232_T
Video input and output interface
:
1
GND black
2
+5V red
3
GND black
4
GND black