Abstract: An error correcting code has been developed for the serial transmission of digital data over a fiber optic link. It is a 96 bit block code, with single bit error correction and double bit error detection. Each block consists of eight 8b/10b coded symbols and sixteen error correction bits. The coded data has a maximum run length of 4, minimum transition density of 25%, and a digital sum variation of $POM 4 bits. A chip set implementing the code has been demonstrated in an experimental link running at 1 Gbit/s (1.5 Gbaud). !3
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