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Wiring
Install the 1-kohm resistor as close to the switch as possible.
Note
Figure 2-17
is normally closed or normally open, neither a cut nor a bypass can defeat these alarms.
Figure 2-17
No Alarm
Alarm
Alarm
Alarm
Figure 2-18
Figure 2-18
Normally Closed
A1
Unsupervised Alarms
When an alarm is configured as an unsupervised alarm, the camera only activates an alarm when the
normal alarm state (open or closed) changes.
Figure 2-19 on page 2-15
Cisco Video Surveillance 5010/5011 Indoor Fixed HD IP Dome Camera User Guide
2-14
illustrates the alarm and no alarm conditions of a supervised alarm input. Whether the alarm
Supervised Alarm Conditions
Normally Closed
1 KΩ
GND
+V
1 KΩ
GND
+V
1 KΩ
GND
+V
CUT
1 KΩ
GND
+V
Bypass
illustrates the wiring configuration for supervised alarm inputs.
Supervised Alarm Input Wiring
1 KΩ
illustrates the alarm and no alarm conditions of an unsupervised alarm input.
Normally Open
No Alarm
1 KΩ
GND
Alarm
1 KΩ
GND
Alarm
1 KΩ
GND
CUT
Alarm
1 KΩ
GND
Bypass
Normally Open
A1
1 KΩ
Chapter 2
+V
+V
+V
+V
Installation
OL-22669-01
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