title: DO-212
text: # DO-212
  
  DO-212 is a performance standard published by RTCA, Incorporated. It contains Minimum Operational Performance Standards (MOPS) for aircraft equipment required for the Automatic Dependent Surveillance (ADS) function. The supporting hardware can be a stand-alone ADS unit or alternatively, the ADS function may be installed within other on-board equipment.
  
  ## Outline of contents
  
  * Purpose and Scope
  * Performance Requirements and Verification Procedures
  * Installed Equipment Performance
  * Terms and Acronyms
  * References
  * These references are noted in DO-212
     * ISO 7498 Information Processing Systems—Open Systems Interconnection—Basic Reference Model
     * ISO 8072 Information Processing Systems—Open Systems Interconnection—Transport Service definition
     * ISO 8073 Information Processing Systems—Open Systems Interconnection—Connection oriented transport protocol specification
     * ISO 8073 Addendum 4 Information Processing Systems—Open Systems Interconnection—Connection oriented transport protocol specification, Protocol enhancements
     * ISO 8473 Information Processing Systems—Data Communications—Protocol for providing the connectionless-mode network service
     * ISO 8348 Information Processing Systems—Data Communications—Network Services Definition
     * ISO 8348 Addendum 1 Information Processing Systems—Data Communications—Network Services Definition, Connectionless-mode transmission
     * DO-178B Software Considerations in Airborne Systems and Equipment Certification
     * DO-205 Design Guidelines and Recommended Standards To Support Open Systems Interconnection for Aeronautical Mobile Communications. Part 1—Internetworking
  * Appendix A: Suggested Timer Values
  