SMC Networks Barricade SMC7908VoWBRA2 User Manual page 108

C
ONFIGURING THE
The following items are included on this information screen:
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 Failures due to loss of frames.
Loss of Power Defect Failures due to loss of power.
Fast Path HEC Error
Interleaved Path HEC
Error
Statistics
Received Cells
Transmitted Cells
4-72
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.
Fast Path Header Error Concealment errors.
Interleaved Path Header Error Concealment errors.
Number of cells received.
Number of cells transmitted.
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