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User Manual for Commercial Series Net DVR
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2.4 External Alarm In/Out Connection
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.
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.