Specifications

Chapter 4 Troubleshooting and Diagnostics Installation and Operation Manual
4-4 Monitoring Performance ASMi-54C LRS-102 Ver. 2.0
Parameter Description
Current UAS Displays the number of SHDSL unavailable seconds (UAS) on this end point in the
current interval.
The SHDSL UAS is a second during which the SHDSL line is unavailable. The SHDSL line
becomes unavailable at the onset of 10 contiguous SESs (the 10 SESs are included in
the unavailable time).
Once unavailable, the SHDSL line becomes available at the onset of 10 contiguous
seconds with no SESs (the 10 seconds with no SESs are excluded from the unavailable
time)
Current SES Displays the number of SHDSL severely errored seconds (SES) on this end point in the
current interval.
The SHDSL SES is any second which is not declared a UAS, during which at least 50
CRC anomalies are declared, or one or more LOSW defects are declared
Current LOSWS Displays the number of SHDSL LOSW seconds (LOSWS) on this end point in the current
interval.
The SHDSL LOSWS is a second during which one or more SHDSL LOSW defects are
declared
CRC Anomalies Displays the number of CRC anomalies on this end point in the current interval.
A CRC anomaly is declared when the CRC bits generated locally on the data in the
received SHDSL frame do not match the CRC bits received from the transmitter. A CRC
anomaly only pertains to the frame over which it was declared
Current Elapsed
Time
The elapsed time (in seconds) since the beginning of the current interval, in seconds.
The range is 1 to 900 seconds.
This parameter is available only for the current interval
24H Intervals The number of 24-hour intervals for which statistics data is available (up to 7)
15-min Intervals The number of 15-min intervals for which statistics data can be displayed (up to 96)
³ To display SHDSL line performance monitoring statistics for a selected 15-minute
interval:
1. Navigate to the Monitoring > Physical Layer > IO screen, and then select the
I/O slot of the desired ASMi-54C module.
2. Select the SHDSL option.
3. Select the desired Line.
4. Select Statistics > Select Interval (15 min).
5. Select the desired interval, by selecting Interval and pressing <Enter>: you can
then enter the desired interval number, 1 to 96.
6. After pressing <Enter>, the data displayed on the screen is updated in
accordance with your selection.
The displayed parameters are explained in
Table 4-3 .