SYSTEM AND METHOD FOR SIGNAL FAILURE DETECTION IN A RING BUS SYSTEM

摘要

A communication system, network, interface, and port architecture are provided for transporting of data across a ring network. If a network node detects lack of its input signal, it configures itself as timing master and communicates a shutdown command to the other network nodes. In addition, an internal flag signaling this "signal off" event is set. All other network nodes which receive the shutdown flag do not set this internal status. Accordingly, it can be easily determined where the loss of signal occurred.