Verilink PRISM 3060-10 (34-00252.4) Product Manual - Manual (Page 37)

Diagnostics 29
BERT
This field selects the part of the circuit to be tested. The NONE setting disables the
BERT generator. IDLE tests all unassigned channels. The T1 NET setting tests the
T1 network. A particular port can be tested by selecting a Slot, DSU, Port, and
Direction). Channel allows testing a specific, unassigned DS0 channel.
BERT Results
The following BERT status and error counts are available through this selection.
Sync Status. Displays the current state of pattern sync during a test. If no test is in
progress, NO TEST is displayed.
Elapsed Time. Displays the elapsed time since a timed test began. A value is
displayed only when a test is running (in the HH:MM:SS format).
Bit Errors. Displays the total number of bit errors detected since the test began or
since error statistics were last cleared.
Errored Seconds. Displays the number of errored seconds that have been detected
since the test began or since error statistics were last cleared.
Pattern Sync Losses. Displays the number of times during the test period that the
BERT pattern detector lost sync.
Reset BERT Test. When set to YES, the BERT error counts and elapsed time
values are cleared to zero. This parameter then returns to NO automatically.
Network
Performance
Stats
The unit records performance statistics as described in TR 54016. The unit is
equipped with a dual set of data registers with individual resets that maintain these
statistics. One set is accessed by the network service provider (telco). The other set
is accessed by the user through the front panel, terminal interface, or the TXPORT
8100A Site Controller.
Performance data is collected in 15 -minute intervals for the preceding 24- hour
period. The intervals (numbered Int# 00 to Int# 96) are viewed by pressing Select
and using the up and down arrow keys. Interval 00 is the most recently stored
interval and interval 96 is the interval that is 24 hours old. Pressing the Exit or
Select keys returns the cursor to the left. This allows scrolling to another data type.
When a specific interval is selected for viewing performance data, all other
parameters reflect that interval until another interval is selected.
Errored Seconds
ES displays the number of one-second intervals where at least one CRC or
out -of-frame error event occurred.
Severely Errored Secs
SES displays the number of one-second intervals where at least 320 CRC errors
were detected or at least one out-of-frame event occurred.