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WCM1100 / WCM3100 / WCM-Serial / LHM1000 / LVM2000 User Manual
76-02-082 Rev N
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5.9.3.5 Results
The results display shows the results as the test progresses.
Metrodata WCM3100 "" Alarms: Major
BERT Test Results
-----------------
Test Seconds 0
Out of Sync Seconds 4490
Bit Errors 0
Bit Error Rate -
<Esc> - exit, C - clear, E - insert error, <Enter> - refresh
The menu does not auto refresh, and therefore press <ENTER> to refesh the screen and
show the current results.
5.9.3.5.1 Test Seconds
The test seconds indcates how long the test has been running. Clearing the results will
clear this back to 0.
5.9.3.5.2 Out of Sync Seconds
The out of sync seconds show how many seconds during the test that the BERT receiver
has been unable to synchronise the test pattern.
The receiver will declare sync once 64 bits have been received without error, and will then
declare loss of sync when 6 bit errors are detected in 64 bits. During out of sync periods,
bit errors are not counted.
5.9.3.5.3 Bit Errors
This is a count of individual bit errors. This count only counts errors whilst the receiver is
in sync.
