| 摘要 |
PURPOSE:To carry out the rapid and precise detection of the obstacle by concentration monitoring flip flop for informing the obstacle correspondingly provided to the respective communication passage device and the communication passage device control processor. CONSTITUTION:When the failure is generated in the communication passage device 11, 12..., and the communication passage device control processor 71, 72..., the indication of the respective failure or obstacle causes is given to the failure communicating flip flop 21, 22... OR of a plurality indication bits of the respective failure causes corresponding to the respective FF21... is taken out by OR circuit 51, 52... and the output thereof is pulled into the failure concentration management FF60, thereby the concentration and the gradation of the monitor point are performed and the monitoring of the communication passage system can be done only by the monitor of FF60. The monitoring is done by one processor of the exchange processor groups. |
