Page 223 - Advanced Course
P. 223
KNX ADVANCED COURSE
A short circuit or disruption of the external set zone leads to a sabotage alarm.
Figure 29: Set zone
3.7.5 Panic Zone
Panic zones are primary circuits with an EOL resistor of 2.7 kΩ.
Figure 30: Panic zone
The disruption of a panic zone always leads to the triggering of a remote alarm.
3.7.6 External Local Alarm Signal
The supply cables to the signalling devices are not monitored for intruder alarm control
units. A short circuit or disruption of these cables is not detected.
Figure 31: External local alarm signal
A further option is to set up the supply cable to the external signalling devices as a
primary cable which is monitored for a short circuit or disruption.
The alarm circuits to the external signalling devices are each provided with an EOL
resistor of 1 kΩ. A short circuit or disruption of the alarm circuits leads to a sabotage
alarm.
Home and Building Management Systems KNX Association
Security Technology Security Technology_E1211a.docx Page 30/32
