TechVision DVR-LT016480, Руководство пользователя

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3.7.6 Alarm Output
Do not connect alarm output port directly with high power load (no more than 1 A) in
case of heavy current.
You can use the co-contactor to realize the connection between the alarm output port
and the load.
Please refer to Figure 3-6 for more information.
Figure 3-6
3.7.7 Alarm Input and Output Details
You can refer to the following sheet and Figure 3-7 for alarm input and output
information.
Parameter Grounding Alarm
Ground Ground line
Alarm Input 1, 2, …, 16
Relay Output 1,2,3,4: NO and C(Normally Open and Com)
5: NO,C and NC(Normally Open, Com, Normally Closed)
6: Ctrl 12V(This is used for reset the senor)
485 A
、
B
485 communication port. They are used to control devices
such as PTZ.
+12
（
C
）
This should input an external power input.

4/8/16-ch 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 DVR and the ground of the alarm
detector.
 Please connect the NC port of the alarm sensor to the DVR alarm input(ALARM)
 If you need to reset the touched-off alarm remotely, you can use DVR to supply
controllable 12 V power to the alarm detector such as the smoke detector.
 Use the same ground with that of DVR if you use external power to the alarm
device.
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