Telect MIX 56 User Manual

A prompt appears asking you to confirm the clear.

3.

Type y and press Enter.

The error counts clear.

You can view low-speed error counts in either of the following ways:

•

15-Minute Histories—Error-count totals are displayed for every 15-
minute period in the last 24 hours (96 periods total), including current 
period.

•

24-Hour Histories—Error count totals are displayed for two time peri-
ods: from Midnight of the current day to the end of the last completed 
15-minute period; and from Midnight of the previous day to one second 
before Midnight of the current day.

These definitions are per ANSI T1.231 and/or ITU-T G.826. You can view 
all of the following DS1 errors in either of the displays described above.

Errored Seconds (ES): A second with one or more bipolar violations 
(BPV), excessive zeros (EXZ), or loss of signal (LOS).

Errored Seconds Ratio (ESR): Ratio of Errored Seconds to total seconds.

Severely Errored Seconds (SES): A second in which 1544 or more BPVs, 
EXZs, or LOS’ occur.

Severely Errored Seconds Ratio (SESR): Ratio of Severely Errored Sec-
onds to total seconds.

Coding Violations (CV): A cumulative count of BPVs and/or EXZs.

Loss of Signal Seconds (LOSS): A second containing one or more LOS 
detects.

AIS Seconds (AISS): A cumulative count of the seconds that Alarm Indi-
cation Signal (AIS) is received during the period of time.

The Low Speed Errors-15 min. screen displays error counts in individual 
15-minute increments for the last 24 hours (96 total increments).

When you specify a time for which you want to view errors, the Low Speed 
Errors-15 min. screen displays the error counts for the 15-minute span that 
the time you specified is within. When you view the counts of the current 
span, the screen updates every 2 seconds.