Monitoring System Activity and Performance
152-319-100-02, Revision 02
34
April 21, 2000
H2TU-C-319 List 1 and List 1C
Alarm History at the HDSL2 Interface
shows the H2TU-C HDSL2 alarm history, and
describes the alarms.
Figure 22.
H2TU-C HDSL2 Alarm History Screen
Table 12.
HDSL2 Alarm Descriptions
Screen Alarm
Front-panel Alarm
Description
LOSW
LOSW
Loss of Sync Word—The HDSL2 loop has lost synchronization.
MAL
MAL
Margin—The margin on the HDSL2 loop has dropped below the minimum threshold
value set for the system.
LA
LA
Loop Attenuation—The attenuation on the HDSL2 loop has exceeded the maximum value
set for the HDSL2 loop attenuation threshold.
HBER
HBER
Block Error Rate—The HDSL2 BER has exceeded the set threshold limits of 10
-6
or 10
- 7
.
SHORT
SHRT
Indicates a short between the Tip and Ring of the HDSL2 pair.
GND
(a)
(a) Appears only on the H2TU-C line unit.
GND
The HDSL2 loop is grounded.
OPEN
OPEN
Indicates a line power open condition.
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H2TU-C HDSL2 Alarm History
------------------------------------------------------------------------------
Alarm
First
Last
Status
Count
LOSW
04/03/00 00:00
04/03/00 00:45
ALARM
12
MAL
OK
0
LA
OK
0
HBER
04/03/00 00:37
04/03/00 00:45
OK
7
SHORT
OK
0
GND
OK
0
OPEN
OK
0
Press: C(l)ear Alarm History
------------------------------------------------------------------------------
Press <Space> to cycle through
Interface
: H2TU-C HDSL2
choices and <Enter> to view
Statistics :
Alarm History
ID: xxxx--xxxx--xxxx--xxxx
04/15/00 12:30:01
H2TU-C
System: Alarm