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Monitoring the HDSL System 150-451-103-02, Revision 02
28 September 18, 1998 HDU-451 List 3
Table 10. Alarm History Fields
Field Description
Type Identifies the type of alarm
LOS, DS1-HLU First and last instance of LOS at the HLU; Current condition, number of
alarms
LOS, DS1-HRU First and last instance of LOS at the HRU; Current condition, number of
alarms
Span1 LOSW,
HDSL1 First and last instance of LOSW on HDSL1; Current condition, number
of alarms
Span1 LOSW,
HDSL2 First and last instance of LOSW on HDSL2; Current condition, number
of alarms
Span1 ES,
HDSL1 First and last instance of ES on HDSL1; Current condition, number of
alarms
Span1 ES,
HDSL2 First and last instance of ES on HDSL2; Current condition, number of
alarms
Span1
Margin L1 First and last instance of exceeded margin on Loop 1; Current
condition, number of alarms
Span1
Margin L2 First and last instance of exceeded margin on Loop 2; Current
condition, number of alarms
PWR Open Power condition: Open or Closed
PWR SHRT Power short condition
Last Cleared Last time Alarm History cleared