Adsl - LevelOne FBR-1461 User Manual

Adsl2/2+ modem router 1w 4l qos

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ADSL

ADSL Mode: There are four modes ―Open Annex Type and Follow DSLAM's

Setting‖, ‖Annex A‖, ‖Annex L‖, ‖Annex M‖ and ‖Annex J‖ that user can select for this

connection.

Modulator: There are few modes AUTO, ADSL multimode, ADSL2, ADSL2+, G.Lite,

T1.413 and G.DMT that user can select

DSP Firmware Version: DSP code version

DMT Status: DMT Status

Operational Mode: To show the state when user select ―AUTO‖ on connect mode.

Upstream: Upstream rate

Downstream: Downstream rate

Noise Margin (Upstream) / Noise Margin (Downstream)

Shows noise ratio, a measurement performed in the frequency domain.

Attenuation (Upstream) / Attenuation (Downstream)

Attenuation is a measure of the loss of signal strength or light power that occurs as light

pulses propagate through a run of multimode or single-mode fiber. Measurements are

typically defined in terms of decibels or dB/km. The further you are away from the exchange

the higher your attenuation figure will be as the signal loss increases.

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