2-14
Cisco Video Surveillance 5010/5011 Indoor Fixed HD IP Dome Camera User Guide
OL-22669-02
Chapter 2 Installation
Wiring
Note Install the 1-kohm resistor as close to the switch as possible.
Figure 2-17 illustrates the alarm and no alarm conditions of a supervised alarm input. Whether the alarm
is normally closed or normally open, neither a cut nor a bypass can defeat these alarms.
Figure 2-17 Supervised Alarm Conditions
Figure 2-18 illustrates the wiring configuration for supervised alarm inputs.
Figure 2-18 Supervised Alarm Input Wiring
Unsupervised AlarmsWhen 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 illustrates the alarm and no alarm conditions of an unsupervised alarm input.
+V
+V
+V
+V
+V
+V
+V
+V
Bypass
CUT
Bypass
CUT
1 KΩ
1 KΩ
1 KΩ
1 KΩ
1 KΩ
1 KΩ
1 KΩ
1 KΩ
GND
Alarm
GND
Alarm
GND
No Alarm
GND
Alarm
GND
Alarm
GND
Alarm
GND
No Alarm
GND
Alarm
Normally OpenNormally Closed
278791
1 KΩ
A1
1 KΩ
A1
Normally OpenNormally Closed
278789