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LTPE-UG-1017-01 Issue 1
Table 20. Fields Displayed in Monitor HDSL Span 1 Screen
Field
Current Margin
(dB) (MAR)
Low Margin (dB)
High Margin (dB)
Pulse Attenuation
(dB)
Errored Seconds
(ES)
Unavailable
Seconds (UAS)
Pair Exchange
Loop1 Tip/Ring
Reversal
Loop2 Tip/Ring
Reversal
Clear 24-Hour
History
UTU-731 List 1 and UTU-732 List 1
Description
Indicates the excess signal-to-noise ratio relative to a 10
rate. The normal range of a typical margin is from 6 to 22 dB, with a
value of 6 dB corresponding to a predicted BER of 10
Indicates the lowest margin since startup or the last 24-hour history
clear.
Indicates the highest margin since startup or the last 24-hour history
clear.
Indicates the attenuation of the 2B1Q pulse from the distant end. This
value is related to the cable pair's loss at 292 KHz. The normal range
of pulse attenuation is from 1 to 32 dB.
The number of one-second intervals in which at least one HDSL
CRC-6 error or loss of Sync Word (LOSW) was detected on the HDSL
span during the last 24 hours.
The number of seconds that the HDSL span was down during the last
24 hours.
Indicates whether the HDSL pairs carrying the traffic are correctly
connected or have been interchanged. The system automatically
compensates for an interchange of pairs.
Indicates whether the two conductors of HDSL Loop1 are correctly
connected or have been interchanged. The system automatically
compensates for an interchange of wire leads.
Indicates whether the two conductors of HDSL Loop2 are correctly
connected or have been interchanged by error. The system
automatically compensates for an interchange of wire leads.
Clears all 24-hour history counters (including G.703 values) and
displays the date and time the error counters were last cleared.
February 15, 2001
Viewing System Status
-7
bit error
-10
.
51
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