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Block check character

In telecommunication, a block check character (BCC) is a character added to a transmission block to facilitate error detection.

Note: In longitudinal redundancy checking and cyclic redundancy checking, block check[?] characters are computed for, and added to, each message block transmitted. This block check character[?] is compared with a second block check character computed by the receiver to determine whether the transmission is error free.

Source: from Federal Standard 1037C

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