FIELD: communication engineering. SUBSTANCE: method involves labeling every signal by each node which it passes with identification data. One version involves relabeling any identification data for previous node and marking the clock signal as one not usable in synchronization purposes if the node to which it is to be transmitted causes closed synchronization line to occur. The second version involves including node identification data into a list. Any node reading its identification data from this list, decision is to be taken not to use the signal in synchronization purposes. To avoid reference synchronization sequence of excessive length to be built, the number of nodes, which the signal has passed, is counted. EFFECT: no need in commutatable switching unit and full complex routing logic set in maintaining transit function. 8 cl, 6 dwg
