NVR/Alarm Panel

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Alarm Connection

Alarm Port

The alarm port is shown as below. The following figure is based on the 78 series.

NVRAlarmDiagram1.png

Icon

Function

1~16

ALARM1~ALARM16. The alarm becomes activated in the low level.

NO1 C1,NO2 C2,NO3 C3,NO4 C4

Four NO activation output groups. (On-off button).

NO5 C5 NC5

One NO/NC activation output group. (On-off button).

CTRL 12V

Control power output. Disable power output when alarm is canceled. Current is 500mA.

+12V

Rated current output. Current is 500mA.

GND

A/B

485 communication port. They are used to control devices such as PTZ. Please parallel connect 120TΩ between A/B cables if there are too many PTZ decoders.

Note

  • Different models support different alarm input ports. Please refer to the specifications sheet for detailed information.
  • Slight difference may be found on the alarm port layout.

Alarm input port

Connect the positive end (+) of the alarm input device to the alarm input port (ALARM IN 1~16) of the NVR. Connect the negative end (-) of the alarm input device to the ground end (PanelIconGround.png) of the NVR.

NVRAlarmDiagram2.png

Note

  • There are two alarm input types: NO/NC.
  • When connect the ground port of the alarm device to the NVR, you can use any of the GND ports ().
  • Connect the NC port of the alarm device to the alarm input port (ALARM) of the NVR.
  • When there is peripheral power supplying for the alarm device, please make sure it is earthed with the NVR.


Alarm relay specifications

Model:

JRC-27F

Material of the touch

Silver

Rating(Resistance Load)

Rated switch capacity

30VDC 2A, 125VAC 1A

Maximum switch power

125VA 160W

Maximum switch voltage

250VAC, 220VDC

Maximum switch currency

1A

Insulation

Between touches with same polarity

1000VAC 1minute

Between touches with different polarity

1000VAC 1minute

Between touch and winding

1000VAC 1minute

Surge voltage

Between touches with same polarity

1500V (10×160us)

Length of open time

3ms max

Length of close time

3ms max

Longevity

Mechanical

50×106 MIN (3Hz)

Electrical

200×103 MIN (0.5Hz)

Temperature

-40℃ ~+70℃