High frequency socket for connection to coaxial cable systems

High frequency socket (13) comprises an integrated monitoring device (37). The monitoring circuit has a switching-off or an interrupter unit through which supply path is interrupted, when the direct voltage signal coming from the attached receiver, for supplying to the cabling system over the specific or presettable time duration, has a voltage lying above the threshold voltage. Monitoring device comprises a monitoring circuit, which is arranged in the supply path which proceeds in the high frequency socket in between the interface (29a) for connecting a receiver and a connection point for cabling system (9,9').