Verilink 2048 (34-00179) Product Manual - Manual (Page 25)

Terminal Operation 4-5 2048 PMU/NTU
NOTE: The parameters shown on the Alarms Screen
are updated at five second intervals.
Power Loss Seconds: This field displays the number of
seconds that the PMU has been without power since this
value was last cleared.
Reset Alarm Registers: Pressing <return> on ( RESET )
zeros the value of all ‘ Current ’ alarm parameters, but
does not affect 24 -hour or 30-day performance registers.
4.4 Performance Screens
The ‘Performance’ screens display a detailed history of the
error parameters that are continuously monitored. The Ter-
minal Interface provides display of near end or far end per-
formance data using the facility data link.
The PMU is equipped with a dual set of performance data
registers with individual resets that hold line statistics for
both the PTT and user. Each register set provides detailed
status and performance history for the network and DTE
interfaces. Access to the data registers is provided through
one front and two rear management ports, which provide
test, diagnostics, and control over the CEPT E1 network.
Access can also be obtained through a data link using an
assigned spare national bit.
Both register sets may be viewed from any serial port. The
PTT performance data registers can be cleared only through
the PTT port. USER registers can only be cleared through
the USER or SUPV port. Both registers contain identical
core performance information.
The unit enables downloading of remote site performance
data from the far end unit, in all modes of operation, using
the facility data link (user selectable national bits).
The system has four ‘Performance’ screens. The ‘ STAN-
DARD 24 HOUR ’ and the ‘ ENHANCED 24 HOUR ’ screens
allow the user to view the 24-hour detailed performance his-
tory of the E1 circuit. The only difference in the two screens
is in the type of performance data displayed. The ‘
STAN-
DARD 24 HOUR ’ screen is shown in Screen 4-4.
The ‘ STANDARD 30 DAY ’ and the ‘ ENHANCED 30 DAY ’
screens allow the user to view a 30-day history of a particu-
lar element’s performance. These screens reference intervals
by date rather than by time. To reach each of the four screen
types, use the <spacebar> to toggle the ‘
STANDARD 24
HOUR ’ field. The other fields are described as follows:
Element: Pressing the <spacebar> toggles this field for
selection of either the ‘
NEAR ’ or ‘ FAR ’ unit as the source of
performance data or the target of commands. ‘ NEAR ’ refers
to the unit to which the terminal is connected. ‘ FAR ’ refers
to the unit at the other end of the network E1 span.
Target: This two-part field determines which section of the
circuit is presently displayed. Pressing the <spacebar> tog-
gles the following options:
[ USER ] [ NET ] – Display the Near or Far PMU user per-
formance registers for the network.
Screen 4 - 4 Performance
2048 PMU x.xx/x.xx 2048 PMU Date MM/DD/YY
2048 PMU x.xx/x.xx (Unit Address: xxx) Time HH:MM:SS
--------------------------------- PERFORMANCE ----------------------------------
Element: [NEAR] Status: OK
Target: [USER][NET] Completed Days: 30
Error Events: 65535 (RESET) Completed Intervals: 96
(RESET PERFORMANCE REGS) 24 Hr.% Error Free: 98.2
[STANDARD 24 HOUR]
411 0 0 0 2 3 3
24 Hour 10 0 0 2 3 0
30 Day 30 10 20 12 2 13
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Time Interval ES UAS BES SES LOFC CSS
PAGE-DN -------------------------------------------------------------------
13:45 6 1 0 0 0 1 0
13:30 7 2 0 0 0 2 0
13:15 8 4 0 0 0 2 0