Nvr724 Series; Alarm Input And Output Port; Alarm Output Port - Dahua NVR6000 series User Manual

2.3.1.3 NVR724 Series

You can refer to the following sheet for alarm input and output information. See Figure 2-19.
Icon
1～4
NO1 C1， NO2 C2， NO3 C3， NO4
C4

2.3.2 Alarm input and output port

Please refer to the following sheet for more information.

Grounding alarm inputs. Normal open or Normal close type)

Please parallel connect COM end and GND end of the alarm detector (Provide external power to the
alarm detector).

Please parallel connect the Ground of the NVR and the ground of the alarm detector.

Please connect the NC port of the alarm sensor to the NVR alarm input(ALARM)

Use the same ground with that of NVR if you use external power to the alarm device.

2.3.3 Alarm Output Port


Provide power to peripheral alarm device.
Figure 2-19
Note
ALARM 1 to ALARM 4. The alarm becomes active in low
voltage.
Four groups of normal open activation output (on/off
button)
GND
Figure 2-20
25