Glossary

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Negative-Acknowledge Character
  • A transmission control character sent by a station as a negative response to the station with which the connection has been set up. (FP)
  • Note 1: In binary synchronous communication protocol, used to indicate that an error was detected in the previously received block and that the receiver is ready to accept retransmission of the erroneous block.
  • Note 2: In multipoint systems, used as the not-ready reply to a poll. See also acknowledge character, character, compelled signaling, control character. (FS1037S1. TXT) (NAK)