Abstract: The invention relates to a method for detecting errors in communication connections having a plurality of physical connections (V1-V3) between two stations (BS or BSC). Data divided between at least two bundled physical connections (V1-V3) is transmitted, the individual connections being respectively monitored in the stations (BS or BSC) for errors. In the event of a connection error, the defective connection (V1) is deactivated. The aim of the invention is to enable an individual connection to be deactivated without large signalling costs and delays. To this end, the deactivation is autonomously carried out in relation to the two stations (BS or BSC), independently from each other and independently from other system devices.

Abstract: During the transmission of signals using differential transmission methods a direct voltage portion of the signal is used downstream. The direct voltage portion is used on the receiver side to provide information concerning the operational state of the transmitter. To do this, a pair of serially arranged resistors may be connected in parallel with the receiver. A detector may be connected between the resistors.