Honeywell
19
Figure 4-2 Alarm Input/Output
Parameter
Grounding Alarm
Ground Ground
line
Alarm in 1…4
1, 2, …, 4. Become activated in low voltage,
Relay Output
1,2,3,4: NO and C(Normally Open and Com)
5: NO,C and NC(Normally Open, Com, Normally Closed)
6: Ctrl 12V(This is used for reset the senor)
485 A
、
B
485 communication port. They are used to control devices such
as PTZ.
+12
（
C
）
This should input an external power input(Less than 1 A).
•
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.
