Method of operation of an alarm signalling system, alarm signalling system and line elements for an alarm signalling system

摘要

in such systems, with funkmeldern and line meldern a safer operation is achieved by the tension on the meldeleitung (2) during the operation is determined. if the voltage on the meldeleitung (2) under a predetermined value, the communication between the radio units (g1...gn) and the funkmeldern (3) such that energy is absorbed less influenced.