Prestige 630-C Series ADSL USB Modem

 

 

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).

 

 

 

 

 

5.3Viewing LAN Status

Click LAN to view the LAN screen as shown next.

Introducing the Web Configurator

5-3