150-451-104-02, Revision 02
Monitoring the HDSL System
HDU-451 List 4
September 18, 1998
27
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