4. Monitoring the Unit
4-12
February 2001
8774-A2-GB20-40
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.
LOFC (Loss of Frame Count): Contains the number of times that an LOF is
declared.
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
Fields on this screen include:
This Field . . .
Contains . . .
Current Interval
Timer
The number of seconds which have elapsed in the current
15-minute interval. Maximum value is 900 seconds (15 minutes).
This counter resets every 15 minutes.
Error Events
Counter
A running total of CRC and OOF events. Total range = 0–65535.
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
Identifies the interval during which the most error events were
detected.
Summary of Contents for Hotwire 8774
Page 24: ...2 Using the Asynchronous Terminal Interface 2 10 February 2001 8774 A2 GB20 40 ...
Page 62: ...5 Testing 5 12 February 2001 8774 A2 GB20 40 ...
Page 68: ...6 Messages and Troubleshooting 6 6 February 2001 8774 A2 GB20 40 ...
Page 100: ...D Technical Specifications D 2 February 2001 8774 A2 GB20 40 ...