SMC Networks 7904WBRA-N FICHE, User Manual

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C
ONFIGURING THE
B
ARRICADE
4-72
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.
Parameter Description