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150-319-205-05, Issue 5
V
A
H
IEW
LARM
ISTORY
The View Alarm History screen allows you to view alarms that are currently active. In the Alarm History screen
the following is displayed:
•
First and Last columns contain the time and date stamp of the first and last occurrence of each alarm
•
Current column shows the status of each alarm.
•
The count column lists the number of times each alarm occurred.
•
The maximum non-overflowing count is 999.
From each Alarm History screen you can do the following:
•
Press
to update the screen.
U
•
Press
to view another span.
S
•
Press
to clear all data from the screen.
C
•
Press
to exit from the Alarm History screen.
E
Table 17
lists the Alarm History fields and descriptions. These descriptions apply to the Alarm History for doubler
applications as well.
Field
Type
LOS, G.703-ELU
LOS, G.703-ERU
BER
Span 1 LOSW, HDSL1
Span 1 LOSW, HDSL2
Span 1 Margin L1
Span 1 Margin L2
PWR-SHRT
PWR-GND
Last Cleared: None
ELU-319 List 5E and List 6E
Table 17. Alarm History Fields and Descriptions
Description
Identifies the type of alarm.
First and last instance of LOS at the ELU; Current condition, number of alarms.
First and last instance of LOS at the ERU; Current condition, number of alarms.
First and last instance of a BER at the ERU; 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; Current condition, number of alarms.
Power ground condition; Current condition, number of alarms.
Last time Alarm History cleared; Current condition, number of alarms.
January 26, 2000
Maintenance
37
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