Circuit arrangement for time-division-multiplex telecommunication exchanges, particularly for PCM telephone exchanges with time-division highways of which the time channels are used partially for the transmission of data and partially for the transmission of signalling information

摘要

In a circuit arrangement for time-division multiplex telecommunication systems, the signaling information transmitted over a signal channel per time-division multiplex and combined in super pulse frames is switched over the time-division multiplex switching matrix serving for the switching of message channels. Two holding memories are assigned to an information memory. One of the holding memories serves for the switching of message information and operates with a circulation cycle corresponding to a pulse frame. The other holding memory serves for switching of the signaling information and operates with a cycle corresponding to a super pulse frame. The second holding memory is advanced with each full cycle of the first holding memory.