User Manual for Commercial Series Net DVR
2.4External Alarm In/Out Connection
Alarm input port (drp node):
G (GND): Connect the GND of sensor.
1~8: Alarm input, support normal open/normal close.
0: Reserved.
Alarm output: 1G~4G: 4 relay output.
Alarm output connection
Please note the usage of jumper JJ1. If you use DC, either connection is OK. We suggest you use DC under 12V, 1A.
If you use AC, please open the jumper. There are 4 jumpers (JJ1, JJ2, JJ3 and JJ4) on DVR main board, corresponding with 4 alarm output. The default is closed.
Warning: If you use AC input for relay output, please open the jumpers.
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