Adsl r – SMC Networks Barricade SMC7908VoWBRA2 User Manual

Page 108

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C

ONFIGURING

THE

V

OICE

ADSL R

OUTER

4-72

The following items are included on this information screen:

Parameter

Description

Status

Line Status

Shows the current status of the ADSL line connection.

Data Rate

Upstream

Maximum upstream data rate.

Downstream

Maximum downstream data rate.

Operation Data/Defect Indication

Noise Margin

Maximum upstream and downstream noise margin.

Output Power

Maximum fluctuation in the output power.

Attenuation

Maximum reduction in the strength of the upstream and

downstream signal.

Fast Path FEC

Correction

There are two latency paths that may be used: fast and

interleaved. For either path, a forward error correction

(FEC) scheme is employed to ensure higher data

integrity. For maximum noise immunity, an interleaver

may be used to supplement FEC.

Interleaved Path FEC

Correction

An interleaver is basically a buffer used to introduce a

delay, allowing for additional error correction techniques

to handle noise. Interleaving slows the data flow and

may not be optimal for real-time signals such as video

transmission.

Fast Path CRC Error

The number of Fast Path Cyclic Redundancy Check

errors.

Interleaved Path CRC

Error

The number of Interleaved Path Cyclic Redundancy

Check errors.

Loss of Signal Defect

Momentary signal discontinuities.

Loss of Frame Defect Failures due to loss of frames.
Loss of Power Defect Failures due to loss of power.
Fast Path HEC Error

Fast Path Header Error Concealment errors.

Interleaved Path HEC

Error

Interleaved Path Header Error Concealment errors.

Statistics

Received Cells

Number of cells received.

Transmitted Cells

Number of cells transmitted.

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