Patent ID: 8621286

Claim:
A fault information managing method of a trunk transmission device which comprises main signal packages for each device for detecting a fault generated in each device and recovery of the fault and transmitting a fault generation notification and a fault recovery notification to a monitoring control package and comprises the monitoring control package for receiving the fault generation notification and the fault recovery notification from each of the main signal packages and transmitting at least a part thereof to a master device, the method comprising: storing each of the fault generation notifications transmitted from each of the main signal packages at least to a storage module provided at least either to the monitoring control package or to the master device along a time series cyclically without exception; and storing each of the fault recovery notifications transmitted in accordance with a detection of recovery of the fault corresponding to each of already stored fault generation notifications to the storage module by corresponding to each of the already stored fault generation notifications, wherein the fault information managing method further comprises: storing each of the fault generation notifications to an instant fault generation history storage table provided to the storage module as an instant fault generation history along a time series cyclically without exception, measuring a passage time from a point at which each of the instant fault generation histories is stored by each of an instant fault generation histories module, and when a fault recovery notification transmitted in accordance with a detection of recovery of the fault corresponding to the fault generation notification is detected before the passage time reaches a time set in advance, storing the fault recovery notification as an instant fault recovery history by corresponding to the instant fault generation history already stored to the instant fault generation history storage table; and when the fault recovery notification transmitted in accordance with a detection of recovery of the fault corresponding to the fault generation notification is not detected even after the passage time from a point at which the instant fault generation history is stored reaches the time set in advance, storing the fault generation notification to an alarm generation history storage table provided to the storage module as an alarm generation history, and storing the fault recovery notification transmitted in accordance with a detection of recovery of the fault corresponding to the fault generation notification as an alarm recovery history by corresponding to the alarm generation history already stored to the alarm generation history storage table.