Adsl - D-Link DSL-310 User Manual

DSL-310 ADSL Modem User's Guide

ADSL

Showtime Firmware Version: This field displays the D-Link ADSL data pump firmware version number.
ADSL Line Status: This field displays the ADSL connection process and status.
ADSL Modulation: This field displays the ADSL modulation status for G.dmt or T1.413.
ADSL Annex Mode: This field displays the ADSL annex modes for Annex A or Annex B.
ADSL Startup Attempts: This field displays the ADSL connection attempts after loss of show time.
ADSL Max Tx Power: This field displays the transmit output power level of the CPE.
ADSL CO Vendor: This field displays the Central Office DSLAM vendor name, if available
Elapsed Time: This field displays the time of the modem has been in operation.
SNR Margin: Amount of increased noise that can be tolerated while maintaining the designed BER (bit
error rate). The SNR Margin is set by 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 (Client ADSL Modem), measured in dB. It is
measured by calculating the difference in dB between the signal power level received at the Client ADSL
modem and the reference signal power level transmitted from the Central Office DSLAM.
Errored Seconds: The error during Showtime, whenever, a given sec contains CRC error, that second
will be declared error second.
Loss of Signal: This field displays the count of event of ADSL signal loss.
Loss of Frame: This field displays the count of event of ADSL frame loss.
CRC Errors: This field displays the number of transmit data frames containing CRC errors.
Data Rate: This field displays the ADSL data rate.
interleave.
Latency: This field displays the latency modes for fast or