Appendix A
Test Results Definitions
DS3 results
CT-650 Command-Line Reference Guide
Release 9.4
125
Bipolar violations
The following fields appear in the BPV (bipolar violations) category of
the DS3 test results screens.
Field
Description
BPV Errors
Number of bipolar violations detected since the begin-
ning of the test. Intentional B8ZS code violations are
excluded.
BPV Err
Rate
Ratio of bipolar violations to received bits since initially
acquiring the signal.
Average BPV
Err Rate
Ratio of bipolar violations to the total number of
received bits since the beginning of the test.
BPV Err Sec
Number of seconds during which one or more pattern
bit errors occurred since initial pattern synchroniza-
tion.
BPV % EFS
Ratio of error-free seconds, expressed as a percent-
age, during which no BPVs were detected to the total
number of seconds since the beginning of the test.
BPV Thr Err
Sec
Number of seconds during which the bipolar violation
rate exceeded or equaled the defined threshold. To
display the threshold, use the command
Informa-
tion Configure Defaults DS3
.
Summary of Contents for CT-650
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