Patent ID: 8857723

Claim:
In a connection cable for the electrical or optical fiber connection of two system devices ( 1 , 4 ), each provided with one connection element, for transmitting electrical energy or data signals, the first end of the connection cable ( 8 ) and the second end of the connection cable ( 8 ) each being provided with a coupling element for connecting to a connection element of a system device, the connection cable ( 8 ) being a power supply cable or a data transmission cable and the electrical energy or data signals being transmitted between the system devices via the connection elements, the coupling elements and the connection cable, the improvement comprising: the first coupling element being equipped with a first antenna arrangement ( 6 ) for RFID coupling with an RFID reader device ( 2 ) present in a system device, the second coupling element being equipped with a second antenna arrangement ( 7 ) for RFID coupling with a transponder ( 3 ) provided in a system device, the antenna arrangements ( 6 , 7 ) being electrically connected to one another via an electrical two-wire line connection ( 5 ) extending parallel to the connection cable, the electrical two-wire line connection not being connected electrically to the connection cable, at least one of the first and second antenna arrangements including ferrite-embedded coils or coils wound about ferrite cores, and the antenna arrangements ( 6 , 7 ) being integrated in the coupling elements of the connection cable ( 8 ).