EXFO MAX-800 Series, User Manual

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Test Results
236
MAX-800 Series
Alarms/Errors Overview
Errors

BEI
(Backward Error Indication)
RX : SM BEI errors are received from the DUT (value 0 to 8).

BIP-8
(Bit Interleave Parity-8)
RX : There is a SM BIP-8 mismatch between the received value and
locally computed value (0 to 8).

FAS (Frame Alignment Signal)
RX
: The FAS bits are in error.

FEC-CORR (Forward Error Correction - Correctable)
RX
: Statistics on codewords (CW; default), symbols (SYMB), or bits
(BIT) corrected by the FEC.
TX
:
FEC-CORR-CW (Forward Error Correction - Correctable -
Codeword): Generates 8 symbols (bytes) containing 8 bits in error
each, in each codeword.
FEC-CORR-SYM
(Forward Error Correction - Correctable -
Symbol): Generates 1 symbol (byte) containing 8 bits in error.
FEC-CORR-BIT
(Forward Error Correction - Correctable - Bit):
Generates 1 symbol (byte) containing 1bit in error.
OTU BEI bits
(1234)
BIP violations
ODUk BEI bits
(1234)
BIP violations
0000 0 0101 5
0001 1 0110 6
0010 2 0111 7
0011 3 1000 8
0100 4 1001 to 1111 0