D-link WIRELESSADSLROUTER DSL-G604T Manuale Utente Scaricare il pdf (Pagina 77)

DSL-G604T 54Mbps Wireless ADSL2/2+ Modem/Router Manual

SNR Margin

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 (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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D-link WIRELESSADSLROUTER DSL-G604T Manuale Utente Pagina 77