D-Link GO-DSL-N150 User Manual page 70

User Manual
GO-DSL-N150
System Log
The ADSL Router keeps a running log of events and activities occurring on the
Router. If the device is rebooted, the logs are automatically cleared.
Statistics
The ADSL Router keeps statistic of traffic that passes through it. You are able to
view the amount of packets that pass through the Router on both the WAN port
and the LAN port. The traffic counter will reset if the device is rebooted. You can
select Ethernet/ADSL to view the statistics report of LAN/WAN.
Statistics :: ADSL
Line State: This field displays the ADSL connection process and status.
Modulation: This field displays the ADSL modulation status for G.dmt or T1.413.
Annex Mode: This field displays the ADSL annex modes for Annex A or Annex B.
Max Tx Power: This field displays the transmit output power level of the ADSL
Router.
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 Router and the
reference signal power level transmitted from the Central Office DSLAM.
Data Rate: This field displays the ADSL data rate.
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