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Prestige 630-C Series ADSL USB Modem
Introducing the Web Configurator 5-3
Table 5-1 ADSL Status
LABEL DESCRIPTION
The following fields display upstream and downstream statistics for the ADSL connection.
SNR Margin This is the amount of increased noise that can be tolerated while maintaining the
designed BER (bit error rate). The SNR Margin is set by the Central Office
DSLAM. If the SNR Margin is increased, bit error rate performance will improve,
but the data rate will decrease. Conversely, if the SNR Margin is decreased, bit
error rate performance will decrease, but the data rate will increase.
Line Attenuation Attenuation is the decrease in magnitude of the ADSL line signal between the
transmitter (Central Office DSLAM) and the receiver (the Prestige), measured in
dB. It is measured by calculating the difference in dB between the signal power
level received at the Prestige and the reference signal power level transmitted
from the Central Office DSLAM.
Errored Seconds This is the number of errors. Whenever a given second contains a CRC error,
that second will be declared an error second.
Loss of Signal This field displays the number of times the ADSL signal has been lost.
Loss of Frame This field displays the number of times an ADSL frame has been lost.
CRC Errors This is the total number of frames that have CRC errors.
Data Rate This is the ADSL data rate.
Latency
This field displays the latency modes (fast or interleave).
5.3 Viewing LAN Status
Click LAN to view the LAN screen as shown next.