Reconfiguration control method for a loop-type data network.

摘要

This invention discloses a loop-back control method for loop-type data transmission systems in which, when a trouble occurs on both transmission lines of two systems (3, 4), two stations (2) adjacent to the trouble region return signals toward a control station (1) in response to a command from the control station, thereby to separate the trouble region and continue the operation. According to this invention, when the control station detects the occurrence of a trouble on the transmission lines of the two systems, it sends out a broadcast command for searching the trouble point to the transmission lins of both systems and thereafter a loop-back command so that the stations adjacent to the trouble point can take the loop-back constitution.