ADC HiGain HRU-402 User Manual page 53

150-402-100-03
Table 10 lists the Alarm History fields and descriptions. These descriptions
apply to the Alarm History for doubler applications as well.
Table 10. Alarm History Fields and Descriptions
Field
Type
LOS, DS-1-HLU
LOS, DS-1-HRU
BER
Span1 LOSW,
HDSL1
Span1 LOSW,
HDSL2
Span1 Margin L1
Span1 Margin L2
PWR-SHRT
PWR-GND
Last Cleared:
HRU-402 List 1 and List 3
Description
Identifies the type of alarm
First and last instance of LOS at the HLU (current condition, number
of alarms)
First and last instance of LOS at the HRU (current condition, number
of alarms)
First and last instance of BER (10
(current condition, number of alarms)
First and last instance of LOSW on HDSL1 (current condition,
number of alarms)
First and last instance of LOSW on HDSL2 (current condition,
number of alarms)
First and last instance of exceeded margin on Loop 1 (current
condition, number of alarms)
First and last instance of exceeded margin on Loop 2 (current
condition, number of alarms)
Power short condition
HDSL grounded conductor detected
Last time Alarm History cleared
November 5, 1998
Using the Maintenance Terminal
-7 -6
or 10 ) threshold crossing
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