Agilent Technologies AuroraPresto, Руководство пользователя

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Section 4 - DSL Layer Tests
Issue 7 - 05/02 4-47
Near End Alarms
•
LowSNRS
—Low Signal-to-Noise Ratio Seconds
•
LOSS
—Loss of Signal Seconds
•
LOSSWS
—Loss of SyncWord Seconds
•
LPRS
—Loss of Power Seconds
•
ES
—Displays The number of Errored Seconds.
An errored second is any second during which
one or more bit errors are received.
•
SES
—Severely Errored Seconds
•
US
—Unavailable Seconds
-7-
Choose F1
Next
to display the next statistics screen
OR
press
F3
Clear
to set the counts to zero.
Far End Alarms
•
LOSSWS
—Loss of SyncWord Seconds
•
LPRS
—Loss of Power Seconds
•
ES
—Displays The number of Errored Seconds.
An errored second is any second during which
one or more bit errors are received.
•
SES
—Severely Errored Seconds
•
US
—Unavailable Seconds
-8-
Choose F1
Next
to display the next statistics screen.
Seg Errors
Segmented Errors. This displays the number of local errors
detected by a downstream segment terminator.
•
SEGA
—Displays the current status of SEGment
Anomaly errors detected during the session.
When a segmented terminator encounters a CRC
error the segmented terminator sets the SEGA bit
in the regenerated frame to indicate that the data
in the regenerated frame may be unreliable.
481801-7.book Page 47 Thursday, May 23, 2002 10:46 AM