4. Monitoring the Unit4-12 February 2001 8774-A2-GB20-40 BES (Bursty Errored Seconds): Contains the number of bursty erroredseconds for the current interval. A bursty errored second is any second withmore than one but less than 320 CRC errors. LOFC (Loss of Frame Count): Contains the number of times that an LOF isdeclared. Status: Contains the contents of the status events register. The status eventsregister maintains a history of specific events that have occurred during aninterval. Values include:— Y: Remote alarm indication signal (yellow alarm) received at the DSX-1interface— L: Loss of signal detected at the DSX-1 interface— E: Excessive error rate threshold exceeded— F: Frame synchronization bit error detected— V: Line code violation detected— None: No significant events have occurredFields on this screen include:This Field . . . Contains . . .Current IntervalTimerThe number of seconds which have elapsed in the current15-minute interval. Maximum value is 900 seconds (15 minutes).This counter resets every 15 minutes.Error EventsCounterA running total of CRC and OOF events. Total range = 0–65535.Counter resets when the statistics are cleared.Current Int Performance data for the current 15 minute interval.Intervalxx Historical performance data for up to 96 15-minute intervals(24 hours) where the value ofxx is from 01 to 96.Worst Interval Identifies the interval during which the most error events weredetected.