System information

15
2.5 External Alarm In/Out Connection
Alarm input dry contact:
Alarm input port (dry contact):
G (GND): Connect the GND of
sensor.
1~8: Alarm input, support normally
open/normally closed.
0: Reserved.
Alarm output:
1G ~ 4G: 4 relay output.
Alarm output connection:
Powering Up:
Note: Complete all cable connections before powering on the DVR.
1. Switch on all connected equipment.
2. Connect the power cable to the unit.
3. Switch on the power supply power switch.