Paradyne HotWire 7974 User Manual page 66

Monitoring the Unit
5-12
DSX-1 Performance Statistics are collected for:
H
ES (Errored Seconds): Seconds during which one or more error events
occurred.
H
UAS (Unavailable Seconds): Seconds during which service is unavailable.
UAS is received at the start of 10 consecutive SES and cleared at the start of
10 seconds with no SES.
H
SES (Severely Errored Seconds): Seconds during which 320 or more cyclic
redundancy check (CRC) error events or at least one Out of Frame (OOF)
event occurred.
H
BES (Bursty Errored Seconds): Contains the number of bursty errored
seconds for the current interval. A bursty errored second is any second with
more than one but less than 320 CRC errors.
H
LOFC (Loss of Frame Count): Contains the number of times that an LOF is
declared.
H
Status: Contains the contents of the status events register. The status events
register maintains a history of specific events that have occurred during an
interval. Values include:
— Y: Remote alarm indication signal (yellow alarm) received at the DSX-1
interface
— 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 occurred
This Field . . . Contains . . .
Current Interval The number of seconds which have elapsed in the current
Timer 15-minute interval. Maximum value is 900 seconds (15 minutes).
This counter resets every 15 minutes.
Error Events A running total of CRC and OOF events. Total range = 0–65535.
Counter Counter resets when the statistics are cleared.
Current Int Performance data for the current 15-minute interval.
Interval xx Historical performance data for up to 96 15-minute intervals
(24 hours) where the value of xx is from 01 to 96.
Worst Interval The number of the interval with the worst (highest) performance
data. If two or more intervals are equal, the oldest interval is
displayed.
Tot A 24-hour running total.
August 1999 7970-A2-GB20-00