16
4.3 Alarm operation instructions:
1
、
Alarm input:
·
16 channel alarm inputs, voltage input (Both Normal on / Normal close type)
·
Please short connect between the alarm input end(COM) and the power (The power of the alarm sensor should be provided by
outside power, the DVR 12V power, but if it provide power for more than two alarm sensors, it may affect the normal
working of the DVR.).
·
Please parallel connect the Ground of the DVR and alarm sensor
·
Please connect the NC port of the alarm sensor to the DVR alarm input(ALARM)
·
If you need to restore the touched-off alarm remotely, you have to supply the controllable 12 V power of the DVR to the alarm
sensor, such as the smoke sensor.
2
、
Alarm output:
·
6 channel alarm outputs
（
5 channel normally open , 1 channel NO/NC optional touch
）
.
·
In order to avoid the overwork of the DVR, please refer to the related parameter of the relay, and see the attached form for the
related relays’ parameter.
·
1 channel controllable 12 V power output: Restore the touched-off alarm remotely such as the smoke sensor.
3
、
Example:
Please short connect between the alarm input end and the power
the connection end of the alarm device
+12V GND
◎
ALARMIN
┇
◎
GND
+12V GND Com NC
◎
◎
◎
◎
The
connection
of the DVR
