ISO/IEC 7809:1993

Information technology -- Telecommunications and information exchange between systems -- High-level data link control (HDLC) procedures -- Classes of procedures

Describes the HDLC unbalanced classes of procedures, the HDLC balanced class of procedures, and the HDLC connectionless classes of procedures for synchronous or start/stop data transmission. The procedures use the HDLC frame structure defined in ISO/IEC 3309 and the HDLC elements of procedures described in ISO/IEC 4335.


General information

  • Status :  Withdrawn
    Publication date : 1993-12
  • Edition : 3
  • :
    ISO/IEC JTC 1/SC 6
    Telecommunications and information exchange between systems
  • 35.100.20
    Data link layer

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