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Monitor HDSL Span Screen
The following table lists the information displayed in each field of the
Monitor HDSL Span 1 screen.
Information 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)
HDSL Tip/Ring
Reversal
Clear 24 Hour
History
20
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 clearance of the
24-hour history.
Indicates the highest margin since startup or the last clearance of the
24-hour history.
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 41 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 two conductors of the HDSL span are correctly
connected or have been interchanged. The system automatically
compensates for an interchange of wire leads.
Not available from this screen on Nx64k serial data port units. Use
clear history options in console screen History menu.
June 14, 2002
700-702-900-04, Revision 04
-7
bit error
-10
.
UTU-702C and ETU-752C List 1
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