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1.3
Alarm Connection
1.3.1
Alarm Port
Please refer to the following figure for detailed information about the alarm port.
Figure 1-3
ID
Description
1-4, 1-8 or 1-16
Alarm Inputs (active low)
Earth ground
CTRL 12V
Control power output. For an external alarm, close the device power to
cancel the alarm.
+12V
External power input. Peripheral equipment must p12V power
(500mA).
NO1/C1 – NO5/C5 Activation Outputs 1-4, normally open (on/off switch)
C5/NC5
Activation Output 5, normally closed (on/off switch)
A/B
485 communication port: controls the PTZ decoder
NVR32xx-P Series User Guide
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