MX2800 STS-1 User Manual Statistics, Section 5Protection Switch Statistics61204659L1-1A 5-134. PROTECTION SWITCH STATISTICSThis menu provides statistics regarding protection switches. The number of protection switches that occurwithin the particular time period will be listed. (See Figure 5-14)Figure 5-14. Protection Switch Statistics MenuPerformance ParametersView performance parameter information for protection switch counts in one of the three time periodselections. Information in these fields is for the given time period since the last reset. When viewing the24-hour history statistics, use the left and right arrow keys to scroll through all 96 15-minute intervals.Clearing protection switch alarm counts will clear the Excessive Switch State if active.5. ALARM LOGThis menu provides a list of the last 200 alarms that have occurred on the MX2800. When the alarm logbecomes full, new alarms replace the oldest alarms in a first-in, first-out sequence.The alarm log is periodically stored in nonvolatile memory. Once every minute, if an alarm has beenrecorded or if the alarm log has been reset since the last time it was saved, the alarm log and systemconfiguration are saved to nonvolatile memory. When executed, both the alarm log and system configura-tion are saved manually by the Save Configuration & Alarm Log function (refer to Save Configuration andAlarm Log on page 3-43). Each time the system powers up, the alarm log is retrieved from non-volatilememory.A Reset Alarm Log function is accessible from the alarm log menu. This option clears the alarm log. SeeFigure 5-15.
