User Manual for COLOSSUS Series Embedded Net DVR
LJD Digital Security Ltd
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10
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107
Copyright © 2005. All rights reserved.
2.4 External
Alarm
In/Out
Connection
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.
Alarm input port:
G (GND): Conenct the GND of sensor.
1~8: Alarm input, support normal
open/normal close.
0: Reserved.
Alarm output:
1G~4G: 4 relay output.