Quick Eagle Networks DL3800E - Manual (Page 55)

Terminal Interface 4-15
4
Event History
Use this screen to review and clear the DL3800E unit alarm and status
history.
To view the EVENT HISTORY, move the highlight bar to EVENT HISTORY
in the NODE MAIN MENU, and press Enter. Use the up and down keys
to move to the next or previous page of the EVENT HISTORY MENU.
UAS Unavailable Seconds. This display provides the number of UAS that have occurred in
the accumulation period. At the onset of 10 consecutive SES events, a period of
unavailable seconds begins. These 10 seconds are part of the unavailable seconds
count. At the onset of 10 consecutive non-SES events, a new period of available time
begins. These 10 seconds are part of available time.
UAS occurs as soon as a Red Alarm is invoked (such as after two seconds of LOS.)
ES, SES, and BBE are not counted during unavailable time. Rate parameters ESR,
SESR, and BBER are the ratio of the fault-seconds count to the total seconds in
available time.
Table 4-3 NET Statistics Items (Continued)
Parameter Definition