Verilink PRISM 3101 (34-00212) Product Manual - Manual (Page 22)

Configuration 3-6 PRISM 3101/3102
one or more of the signal status conditions listed in
Line Fault and Loop Status on page 3-7.
Completed Days: Displays the number of days which are
included in the 30-day totals.
Completed Intervals: Displays the number of 15-minute
intervals in the last 24-hour period since the registers were
last cleared (a 24-hour period may contain up to 96 intervals).
24 Hr.% Error Free: Displays the percentage of error free
seconds within the last 24 hours or since the event registers
were last cleared (based only on the ES and UAS parameters).
(performance data): The main body of display data con-
sists of error events for three different periods: The first dis-
play line shows the data accumulated for the current interval
(from 0 to 900 seconds). The second line shows the totals
for the last 24-hour period (or the last 96 fifteen-minute
intervals). The third line shows the 30-day totals.
The remaining lines of this screen show the data for any
intervals containing errors. Interval 1 is the most recently
stored 15 -minute interval and interval 96 is the oldest in the
current 24-hour period. On the 30 -day screens, interval 30
is the oldest 1-day interval in the current 30-day period.
The real time (or date on 30-day screens) of the interval
beginning is shown in the first column.
If more than 5 errored intervals have elapsed, [PAGE-Dn]
appears to the left of the performance data. Pressing
<return> on this field displays the next five errored inter-
vals. [PAGE-UP] appears once [PAGE-Dn] is used. Press-
ing <return> on [PAGE-UP] displays the previous five
errored intervals. Only intervals containing errors are dis-
played, eliminating rows of zeroes. If an interval is not dis-
played, no errors were detected during that time period.
The parameters shown on the Performance
screens are updated at 5 second intervals.
Per AT&T TR54016, the Standard 24 Hour and Standard 30
Day performance data consists of Errored Seconds (ES),
Unavailable Seconds (UAS), Bursty Errored Seconds
(BES), Severely Errored Seconds (SES), Loss of Frame
Count (LOFC), and Controlled Slip Seconds (CSS).
The Enhanced 24 Hour and Enhanced 30 Day screens show
data for CRC Errored Seconds (CRCES), Out of Frame Sec-
onds (OOFS), Loss of Signal Seconds (LOSS), Alarm Indi-
cation Signal Seconds (AISS), Remote Alarm Seconds
(RAS), and Bipolar Violation Seconds (BPVS).
For generic 54016 far end devices, only the stan-
dard telco 24-hour performance data is dis-
played. 30-day data is not available.
Element Maintenance
The Element Maintenance screen (Figure 3-9) allows you
to perform loop test and/or BERT functions on the T1 cir-
cuit. You can activate and clear loops and the BERT tester.
BERT is performed by using on-board test facilities. No
other test equipment is needed. Some of these tests may also
be activated by the front panel push buttons as described in
Hardware Testing on page 4-1.
Clear Tests: Pressing <return> on this field clears all local
tests and any line loops that have been initiated.
Clear Alarms: Pressing <return> on this field causes all
near end alarms to be cleared.
T1 Loop: The type of T1 loop is chosen by toggling the
<spacebar> and is executed by pressing <return>. This unit
Figure 3 -9 Element Maintenance Screen