Chapter 5. Statistics5-2 T3SU 300 User Manual 61200217L1-1Figure 5-1. Main Local Statistics Menu ScreenAlarm HistoryThe T3SU 300 keeps track of yellow, blue, and red alarms for thenear end. View alarm history information in one of the three timeperiod selections, or view a cumulative alarm count. Information inthese fields is for the given time period (if any) since the last reset.The cumulative alarm count continues indefinitely until C LEAR A LLDS3 A LARM C OUNTS is selected. See Figure 5-2 and Figure 5-3 onpage 5-3 for examples of alarm screens.An alarm history is also available for the individual ports of a QuadDSX-1 interface card (if installed). Select PORT X QUAD DSX-1A LARM HISTORY (where X is the number of the card slot that theQuad DSX-1 card is installed in). See Figure 5-4 on page 5-4 for anexample of the 24-hour alarm history for the card.The count given reflects the number of times the alarm has occurred(rather than the number of seconds the alarm was active).