ADTRAN 12804108L1A System Manual

Section 5 User Interface Guide TRACER 4108/4208 System Manual54 © 2003 ADTRAN, Inc. 612804208L1-1B>T1X PERFORMANCE HISTORYFigure 13 shows the T1x Performance History menu page, which displays detailed error statistics for theT1 link (from both the local and remote TRACER 4108/4208 units) in 15-minute increments.Figure 13. T1x Link Performance HistoryT1 performance data is presented as Errored Seconds (ES) and Severely Errored Seconds (SES) on the T1link. The following events qualify as an ES–AIS, LOS or LOF Alarm Second, a single bipolar violation(BPV), excessive zero event, or a single parity bit. An SES is caused by an AIS, LOS or LOF AlarmSecond, excessive BPVs, or framed parity bit errors causing a line bit error rate (BER) of 10-6 .The error count for the most recent 24 hours are recorded and displayed on the right side of the page. Theleft side of the page displays the 24 hour totals for the most recent 7 days.The following menus for the T1x Performance History apply to all eight available T1interfaces (A through H).Press <N> to view the next 8 hours worth of 15-minute totals and <P> to view theprevious 8 hours.24Hours7Days