Verilink PRISM 3111 (34-00242) Product Manual - Manual (Page 65)

Element Maintenance 57
BERT This command allows you to select the BERT to be run. Selections are:
None - No BERT selected.
Idle - BERTs the idle (unallocated) channels toward the network.
T1 Net - BERTs the full T1 bandwidth towards the network.
T1 DTE - BERTs the T1 DTE channels toward the DTE.
1 Net - BERTs the Port 1 channels toward the network.
1 DTE - BERTs the Port 1 channels toward the DTE.
2 Net - (3112) BERTs the Port 2 channels toward the network.
2 DTE - (3112) BERTs the Port 2 channels toward the DTE.
Ch 1 - 24 - BERTs the selected channel towards the network. Only unallocated
channels are available for selection.
Pattern Specifies the pattern to be transmitted during a test. Modifying this field will not
cause the BERT to be started (refer to Start Test). The choices are QRSS, 63, 511,
2047, 2
15 , 2 20 , 2 23 , 1:8, 3:24, ALT and CLEAR.
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 Displays the current state of pattern sync during a test. Values are:
No Sync - Test is active, but the receiver is not in pattern sync.
In Sync - The receiver is in pattern sync. An error may be occuring.
No Test - No test is in progress.
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 a maximum number of 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.