Optiview VR EM, Quick Start Up Manual

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11
1.8.3 PRO Series
1.9 Alarm Input and Output Connections
1.9.1 Alarm Input Port

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).

Use the contro12V power to reset the smoke sensor remotely.

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)

Use the same ground with that of DVR if you using external power to the alarm device.

Note: VR4LT does not have Alarm Input/output ports and no PTZ (RS485) port.
For VR8LT DVR System
(Alarm) Rear Panel for VR8LT
Parameter
Grounding Alarm
Ground line
Alarm Input 1, 2, …, 8. It becomes valid in low voltage.
1-NO C
，
2-NO C
，
3-NO C
Three NO activation outputs.
RS485 Connection
port for PTZ camera