Verilink PRISM 4051 (34-00253.2) Product Manual - Manual (Page 35)

Software Configuration 29
Activating the remote access causes the unit to interrupt network traffic. Network
traffic does not restart until remote access is deactivated.
BERT
These fields control the Bit Error Rate Test feature. BERT is performed on the
NET interface and preempts user data.
Test Length
Defines the run -time of test pattern generation and error accumulation. The
choices are 15 min, 30 min, 60 min, 24 Hour, and Continuous.
Pattern Sync
This field displays the current state of pattern sync during a test. If no test is in
progress, NO TEST is displayed. If a test is active, but the receiver is not in pattern
sync, NO SYNC is displayed. If the receiver is in pattern sync, IN SYNC is
displayed.
Elapsed Time
Displays the amount of time elapsed since a timed test began or, if completed, the
total test time.
Bit Errors
Displays the total number of bit errors detected since the test began or since error
statistics were cleared (up to 999,999).
Errored Seconds
This field displays the number of asynchronous errored seconds that have been
detected since the test began or since error statistics were last cleared. This
parameter includes bit error seconds and sync loss seconds.
% EFS
This ratio is derived from the number of error free seconds divided by the number
of seconds accumulated in Elapsed Time.
Start Test
Pressing Enter with the cursor on this field starts the selected test pattern. TEST IN
PROGRESS appears once the test has started. To end the test, press Enter on
STOP TEST.
Reset Errors
Pressing Enter with the cursor on this field causes the test error results to be
cleared to zero.
NET and DTE Status
These two fields display the fault status of the network and the far-end DTE. They
indicate current fault conditions. They do not indicate that alarm thresholds are