Advanced Data Communication Control Procedures

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In telecommunication, Advanced Data Communication Control Procedures (or Protocol) (ADCCP) is a bit-oriented data link layer protocol used to provide point-to-point and point-to-multipoint transmission of data frames that contain error control information. It places data on a network and ensures proper delivery to a destination. ADCCP is based on the IBM's SDLC protocol. The HDLC by ISO and LAPB by ITU/CCITT are based on ADCCP.[citation needed]

ADCCP is an ANSI standard, X3.66, derived from IBM's Synchronous Data Link Control (SDLC) protocol, and is functionally equivalent to the ISO High-Level Data Link Control (HDLC) standard.[1]

ADCCP has 3 main modes – NRM (Normal Response mode akin to SDLC), ABM (Asynchronous Balanced mode - akin to HDLC) and ARM (Asynchronous Response mode)

See also[edit]


  • Friend, George E.; Fike, John L.; Baker, H. Charles; Bellamy, John C. (1988). Understanding Data Communications (2nd ed.). Indianapolis: Howard W. Sams & Company. ISBN 0-672-27270-9.