Arming device for intrusion detection systems

摘要

Arming devices on doors which close an area secured by intrusion detection systems have the disadvantage that in an attack on the door, the intrusion detection system is disarmed. Using an additional detector in the form of a magnetic or folding contact and an evaluating device which evaluates the response of latch contact and detector in time has the effect that the intrusion detection device remains armed in the case of the door being opened by force.