Unsupervised Alarm Input Configuration and Wiring
Unsupervised relay contacts are not terminated. They are wired as either normally open or normally closed. Set switch 1 down. Set switch 2 up for normally closed (N.C.) or down for normally open (N.O.). Refer to Figure 6.
Unsupervised modes are easily defeated and should not be used in critical situations when security is most important.
SWITCH SETTINGS UNSUPERVISED, NORMALLY CLOSED (NTSC)
1 2 3 4
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NTSC/PAL |
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| NOT USED | ||||||||
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SWITCH SETTINGS
UNSUPERVISED, NORMALLY
OPEN (NTSC)
1 2 3 4
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NTSC/PAL |
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| NOT USED | |||||
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UNSUPERVISED MODE CONSIDERATIONS INDIVIDUAL ALARM WIRING CONDITIONS
NO ALARM
NORMALLY CLOSED
+V
ALM
UNIT
GND
NO ALARM
NORMALLY OPEN
+V
ALM
UNIT
GND
NORMAL
ALARM CONDITION
+V
ALM
UNIT
GND
NORMAL
ALARM CONDITION
+V
ALM
UNIT
GND
ALARM CONDITION
+V
ALM
UNIT
GND
CUT WIRE
NO ALARM CONDITION
+V
ALM
UNIT
GND
CUT WIRE
NEVER WILL BE AN
ALARM CONDITION HERE
UNSUPERVISED GROUP ALARM WIRING CONDITIONS
UNSUPERVISED, NORMALLY OPEN
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
UNSUPERVISED, NORMALLY CLOSED
1
2
3
4
5
6
7
8
Figure 6. Unsupervised Alarm Input Wiring
20 | Pelco Manual |