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C
ONFIGURING THE
Parameter
Status
Line Status
Data Rate
Upstream
Downstream
Operation
Data/Defect
Indication
Noise Margin
Upstream:
Downstream:
Output Power
Attenuation
Upstream:
Downstream:
Fast Path FEC
Correction
Interleaved Path
FEC Correction
Fast Path CRC
Error
Interleaved Path
CRC Error
Loss of Signal
Defect
Loss of Frame
Defect
4-56
V
IP ADSL R
O
Description
Shows the current status of the ADSL line.
Actual and maximum upstream data rate.
Actual and maximum downstream data rate.
Minimum noise margin upstream.
Minimum noise margin downstream.
Maximum fluctuation in the output power.
Maximum reduction in the strength of the upstream signal.
Maximum reduction in the strength of the 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.
Indicates the number of Fast Path Cyclic Redundancy Check
errors.
Indicates the number of Interleaved Path Cyclic Redundancy
Check errors.
Momentary signal discontinuities.
Failures due to loss of frames.
OUTER
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