SMC Networks Barricade SMC7908VoWBRA User Manual page 100

C
ONFIGURING THE
The following items are included on this information page:
Parameter
Status
Line Status
Data Rate
Upstream
Downstream
Operation Data/Defect Indication
Noise Margin
Output Power
Attenuation
Fast Path FEC
Correction
Interleaved Path
FEC Correction
Fast Path CRC
Error
Interleaved Path
CRC Error
Loss of Signal
Defect
Loss of Frame
Defect
Loss of Power
Defect
Fast Path HEC
Error
Interleaved Path
HEC Error
4-66
V ADSL R
OICE
Description
Shows the current status of the ADSL line connection.
Maximum upstream data rate.
Maximum downstream data rate.
Maximum upstream and downstream noise margin.
Maximum fluctuation in the output power.
Maximum reduction in the strength of the upstream and
downstream signal.
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.
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.
The number of Fast Path Cyclic Redundancy Check errors.
The number of Interleaved Path Cyclic Redundancy Check
errors.
Momentary signal discontinuities.
Failures due to loss of frames.
Failures due to loss of power.
Fast Path Header Error Concealment errors.
Interleaved Path Header Error Concealment errors.
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