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Configuration Submenu
Alarm
Description
LOSW
COLU cannot receive data over the given HDSL loop. COLU and RT cannot synchronize and is out of
service.
ES-15 Min.
Number of HDSL ES has exceeded the user-configurable threshold to give advance warning that HDSL
performance is deteriorating. You can set this threshold from 0-15 ES over a 15-minute period, or
disable the alarm completely. 24 hour ES alarm threshold reached or exceeded.
ES-24 Hr.
Number of HDSL ES has exceeded the user-configurable threshold to give advance warning that HDSL
performance is deteriorating. You can set this threshold from 0-255 ES over a 24-hour period, or disable
the alarm completely. 24 hour ES alarm threshold reached or exceeded.
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). A PFS alarm indicates an overcurrent condition due to wire
shorting or an RT failure. TCOLU 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.
28
Table 10.
HDSL Alarms
January 6, 2003
SCP-PLL724-010-04H
Default
MN
MN
MN
MN
MN
MN
PLL-724 List 1
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