Circuit arrangement for a telephone system, in particular a telephone PBX system, with speech path and signal path through-connection via serially connected couplers with a connection facility for a code receiver

摘要

The terminal stations can be connected to columns or lines of couplers with mutually independently operable coupling points and intermediate lines can be connected to the lines or columns of these couplers, which intermediate lines connect couplers of different terminal station groups and establish connections with different couplers which through-connect connection lines, one or more couplers being connected in these intermediate lines for the connection of a code receiver. <IMAGE>