Patent ID: 8456315

Claim:
A monitoring device ( 6 , 10 ) for monitoring the function of a reporting system ( 1 ), the reporting system ( 1 ) comprising: a plurality of reporting devices ( 4 ) and/or signalling devices, supply lines ( 3 ), and a voltage source, wherein the reporting devices ( 4 ) and/or signalling devices are connected to the voltage source via the supply lines ( 3 ), and the reporting devices ( 4 ) and/or signalling devices are connected in parallel to one another and to the voltage source, characterized by a test signal device ( 6 ) which is designed to connect a reference resistor (R) into the supply lines ( 3 ) in parallel with the reporting devices ( 4 ) and/or signalling devices, and/or which is designed to connect a or the reference resistor (R) as a termination of the supply lines ( 3 ), and comprising an evaluation device ( 10 ) for detecting and evaluating the system response of the reporting system ( 1 ) to the connecting of the reference resistor (R), wherein the monitoring device is configured such that connection of the reference resistor (R) simulates a reporting situation.