EXFO FTB-8510B Guia Del Usuario página 1103

Next-Generation Tabs
GFP Channel RX
Error Analysis
eHEC Correctable: Indicates that only one bit error has been detected
in the Extension header (eHEC, CID and Spare). Only available with
Linear frames (EXI is set to Linear).
eHEC Uncorrectable: Indicates that two or more bit errors have been
detected in the Extension header (eHEC, CID and Spare). Only
available with Linear frames (EXI is set to Linear).
tHEC Correctable: Indicates that only one bit error has been detected
in the Type header (tHEC, PTI, PFI, EXI and UPI).
tHEC Uncorrectable: Indicates that two or more bit error have been
detected in the Type header (tHEC, PTI, PFI, EXI and UPI).
pFCS: Indicates that at least one bit error has been detected in the
payload.
SB Correctable: Indicates that bit error has been detected in the
CRC-16 word of the superblock. A received SB Correctable (Pre) error
counts as one error while SB Correctable (Post) counts as two errors.
SB Uncorrectable: Indicates that two or more bit errors have been
detected in the CRC-16 word of the superblock. Note that if two errors
are spaced by exactly 43 bits, they will not be reported as
uncorrectable.
10B_ERR: Indicates that a10B_ERR code has been detected in the
payload of the superblock.
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SONET/SDH Application