20
Alarm Input and Output Details
You can refer to the following sheet for input and output alarm information.
From the left to
the right,: 1, 2,
3, 4, 5, 6, 7, 8,
9,10, 11, 12,
13, 14, 15, 16
Alarm input 1 to Alarm input 16. The alarm becomes active in low voltage.
NO1 C1,
NO2 C2,
NO3 C3,
NO4 C4,
NO5 C5 NC5
Alarm output.
The first four are four groups of Normal Open activation output (“on/off” button).
For example, connect NO1 to earth.
NO5 C5 NC5 is a group of NO/NC activation output (“on/off” button).
CTRL 12V
Control power output. You need to close the device power to cancel the alarm.
+12V
It is external power input. Need the peripheral equipment to p12V power (below 1A).
+12V
Sortie alimentation externe. Permet l’alimentation d’un équipement en +12V (inférieur à 1A).
Ground cable.
RS485 A, B
RS 485 communication port. They are used to control devices such as PTZ. Please parallel
connect 120
Ω
between A+/B- cables if there are too many PTZ decoders.
Alarm Input Port
Please refer to the following sheet for more information.
•
4/8/16-ch grounding alarm inputs. (Normal Open or Normal Close type).
•
Parallel connect COM end and GND end of the alarm detector (Provide external power to the alarm
detector).
•
Parallel connect the Ground of the DVR and the ground of the alarm detector.
•
Connect the NC port of the alarm sensor to the DVR alarm input (ALARM).
•
Use the same ground with that of DVR if you use external power to the alarm device.
•
Use the contro12V power to reset the smoke sensor remotely.
Example 1 : Input alarm connection (NVR 4 306 81).
The end device is Normally Open (NO) or Normally Close (NC) and the DVR can be set in MAIN MENU-
>SETTING->ALARM.
If the end device is NO the alarm setting in the DVR is NO.
If the end device is NC the alarm setting in the DVR is NC.
Alarm Input
Summary of Contents for NVR 4 306 80
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