Alarm Input Port; Figure 3-1 Alarm Input And Output - Honeywell HD-16DVR-C User Manual

Installation and Connections

Alarm Input Port

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Figure 3-1 Alarm Input and Output

Parameter Grounding Alarm
Ground line
Alarm Input 1-16 become valid in low voltage.
1-4 NO C: four Normal Open activation outputs.
Relay Output 5 NO C NC: Normal Open – Normal Closed dual activation
output
Controllable +12VDC power output as the 6th alarm output
Ctrl 12V channel. When the alarm output is ON, the power output is cut
off.
+12V +12VDC power output for external equipment (less than 1A).
RS-485 communication port. They are used to control devices
RS-485 A/B such as PTZ. Please parallel connect 120Ω between A/B
cables if there are too many PTZ decoders.
16-channel 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)
Use the same ground with that of DVR if you use external power for the
alarm device.