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)
