Appendix A
Test Results Definitions
FT1 results
CT-650 Command-Line Reference Guide
Release 9.4
151
G.821
The following fields appear in the G.821 category of the FT1 test
results screens.
Field
Description
Error Free
Sec
Number of seconds during which pattern synchroniza-
tion is maintained through the entire second and no bit
error occurred.
Severely
Errored Sec
Number of seconds during which the bit error ratio
was greater than 10
-
3
since the test started.
Degraded
Minutes
Number of minutes during which the bit error ratio is
greater than 10
-6
and less than 10
-3
.
Available
Sec
Number of elapsed seconds since pattern synchroni-
zation for which the bit error rate is less than 10
-3
.
Unavail-
able Sec
Count of elapsed seconds since pattern synchroniza-
tion in which the bit error rate is greater than or equal
to 10
-3
.
% Error
Free Sec
Ratio, expressed as a percentage, of error-free sec-
onds to the total number of seconds since pattern syn-
chronization.
% Severely
Errored Sec
Ratio, expressed as a percentage, of severely errored
seconds (an error rate greater than 10-3 was present
in each second) to the number of available seconds.
% Degraded
Minutes
Ratio, expressed as a percentage, of minutes the
channel was degraded to the number of available min-
utes.
% Avail-
able Sec
Ratio, expressed as a percentage, of seconds the
channel was available to the total elapsed seconds
since pattern synchronization.
Summary of Contents for CT-650
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