Planet Technology DVR-470 - Manual (Page 10)

Page 10
External Alarm Input
4/8/16 Alarm in.
Relay Output
2/4 Alarm out
8 AC Input 100V~240VAC
2.4 External Alarm In/Out Connection
Alarm input port：
G (GND)：Conenct the GND of sensor.
1~16：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 of connections is OK. We suggest
you to use those DC under 12V, 1A.
If you use AC, please open the jumper. There are 4 jumpers (JJ1, JJ2, JJ3 and JJ4) in 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.