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SCP-PLL722-010-04H
HDSL History Screen
The HDSL history maintained on the COLU contains a count of the number of times each alarm occurred, the
time and date of the first and last occurrence, the provisioned notification type, and the current status. At this
screen you view the results of the alarms set at the Configuration
1
Select Alarms at the menu bar and press
2
Scroll to the HDSL History option and press
If there are no active alarms, the status
3
To clear the alarm history, type
Clearing the alarm history clears the RT and the COLU alarm history, regardless of whether you clear it
from the COLU or the RT page of the history screen. If there is an active alarm, then the count is set to 1
and the value in the Last date and time field is set to the First date and time field.
4
Press
to move up a menu level, or
ESC
Alarm
Description
LOSW
COLU cannot receive data over the given HDSL loop. COLU and RT cannot synchronize and are out of
service.
ES-24 Hr.
Number of HDSL ES exceeded the user-configurable threshold to give advance warning that HDSL
performance is deteriorating. Set this threshold from 0-255 ES over a 24-hour period, or disable the alarm
completely.
MAR
HDSL noise margin of the loop has fallen below the user-configurable threshold. HDSL margin reaches or
drops below the current threshold value.
PFO
COLU cannot power the RT due to an open circuit. An undercurrent condition as detected by the RT exists
for the given pair (<20 mA). A possible cause is that there is no RT at the other end of the circuit. No user
intervention is required
PFS
COLU cannot power the RT due to a short circuit. An excessive current condition as detected by the COLU
exists for either pair (>50 mA). PFS alarm indicates an overcurrent condition due to wire shorting or an RT
failure. COLU automatically turns off power feeding to both loops in response to a PFO or PFS condition
on a single loop. No user intervention is required.
PLL-722 List 1
to display the submenu.
ENTER
to view the screen:
ENTER
appears in the
OK
Current
at the
Clear HDSL Alarm History?
Y
+
to return to the PAU/PMU Main menu.
CTRL
R
Table 5.
HDSL Alarms Screen
January 6, 2003
"HDSL Alarm Types Screen" on page
column.
prompt.
Alarms Submenu
26.
Default
MN
MN
MN
MN
MN
21
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