Exfo FTB-800 Series for FTB-1 Manuale Utente Pagina 276

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Test Results
266 FTB-700G/800 Series
Alarms/Errors
Errors
BIP-8 (Bit Interleave Parity-8)
RX: There is a PM BIP-8 mismatch between the received value and
locally computed value (0 to 8).
BEI (Backward Error Indication)
RX: Interleaved block in error detected by the corresponding ODU path
monitoring sink using the BIP-8 code.
ODU BEI bits
(1234)
BIP violations
ODU 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
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