Anlage zur Uebermittlung von Zeitmultiplexsignalen mit einem Leitungsnetz in Ringstruktur

DE 2843088 A UPAB: 19940205 The time-multiplexed communications system has a ring network, head station, subscriber stations and parallel ring lines with opposite directions of transmission. The same TDMA frame is used for all messages sent and received. The stations are connected to both ring lines via interfaces. The head station and the subscriber-station interfaces contain devices to allow the messages sent via the system to be switched centrally. Each interface has a frequency-stable phase locked loop and two time frame generators. Several subscriber stations can be connected to one interface