Patent ID: 8829880

Claim:
A communication system ( 10 ) for reliable detection of a contact-encumbered signal comprising: an input device ( 20 ), which has an input connection ( 32 ), a ground connection ( 34 ) and an input circuit ( 70 ) connected between the input connection ( 32 ) and ground connection ( 34 ), which is designed to detect a contact-encumbered signal delivered by a sensor device ( 100 ), the sensor device ( 100 ) connected to the input connection ( 32 ), a power supply ( 40 ) to supply the sensor device ( 100 ) with power, and a current-increasing device ( 80 ) connected to the input connection ( 32 ) and ground connection ( 34 ), which is designed to furnish an increased current for the input circuit ( 70 ) for an adjustable time period as a function of the voltage lying on the input connection ( 32 ), so that the contact-encumbered signal is reliably detectable.