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• ITU-T Rec. X.227 (11/1988) – ASSOCIATION CONTROL PROTOCOL SPECIFICATION FOR OPEN SYSTEMS INTERCONNECTION FOR CCITT APPLICATIONS
• CONTENTS
• 0 Introduction
• 1 Scope and field of application
• 2 References
• 3 Definitions
  • 3.1 Reference Model definitions
  • 3.2 Naming and addressing definitions
  • 3.3 Service conventions definitions
  • 3.4 Presentation service definitions
  • 3.5 ACSE service definitions
  • 3.6 Association Control protocol specification definitions
• 4 Symbols and abbreviations
  • 4.1 Data units
  • 4.2 Types of application-protocol-data-units
  • 4.3 Other abbreviations
• 5 Conventions
• 6 Overview of the protocol
  • 6.1 Service provision
  • 6.2 Use of the presentation-service
  • 6.3 Relationship to the session-service
  • 6.4 Model
• 7 Elements of procedure
  • 7.1 Association establishment
  • 7.2 Normal release of an association
  • 7.3 Abnormal release of an association
  • 7.4 Rules for extensibility
• 8 Mapping to the presentation-service
  • 8.1 Association establishment (normal mode)
  • 8.2 Normal release of an association (normal mode)
  • 8.3 Abnormal release of an association (normal mode)
  • 8.4 Association establishment (X.410-1984 mode)
  • 8.5 Normal release of an association (X.410-1984 mode)
  • 8.6 Abnormal release of an association (X.410-1984 mode)
• 9 Structure and encoding of ACSE APDUs
• 10 Conformance
  • 10.1 Statement requirements
  • 10.2 Static requirements
  • 10.3 Dynamic requirements
• ANNEX A – ACPM state table for normal mode of operation
• A.1 General
• A.2 Conventions
• A.3 Actions to be taken by the ACPM
• A.4 Relationship to Presentation and other ASEs
• ANNEX B
• B.1 General
• B.2 Conventions
• B.3 Actions to be taken by the ACPM
• B.4 Relationship to Presentation and other ASEs
• APPENDIX I – Differences between Recommendation X.227 and ISO International Standard 8650
• APPENDIX II – Summary of assigned object identifier values