Honeywell HLVR4 User Manual page 31

Figure 4-2 Alarm Input/Output
Parameter Grounding Alarm
Ground Ground line
Alarm in 1...4 1, 2, ..., 4. Become activated in low voltage,
1,2,3,4: NO and C(Normally Open and Com)
Relay Output 5: NO,C and NC(Normally Open, Com, Normally Closed)
6: Ctrl 12V(This is used for reset the senor)
485 communication port. They are used to control devices such
485 A、B
as PTZ.
This should input an external power input(Less than 1 A).
+12（C）
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4-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).
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).
If you need to reset the touched-off alarm remotely, you can use
DVR to supply controllable 12 V power to the alarm detector such as
the smoke detector.
Honeywell
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