EXFO FTB-8510B Guia Del Usuario página 1060

BERT Tabs
Pattern RX
Error Analysis
Bit Error: A Bit Error indicates that there are logic errors in the bit stream
(i.e., zeros that should be ones and vice versa).
Note: The following errors are only available for 10G Ethernet.
Mismatch '0': A Mismatch '0' Error indicates a bit error on a binary "0"
(for example ones that should be zeros) found in the test pattern only.
Mismatch '1': A Mismatch '1' Error indicates a bit error on a binary "1"
(for example zeros that should be ones) found in the test pattern only.
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FTB-8100 Series Transport Blazer