FAA-STD-039C, STANDARD PRACTICE NATIONAL AIRSPACE SYSTEM (NAS)

FAA-STD-039C, STANDARD PRACTICE NATIONAL AIRSPACE SYSTEM (NAS) OPEN SYSTEM ARCHITECTURE AND PROTOCOLS. This standard establishes the open systems data communications architecture and authorized protocol standards for the National Airspace System (NAS). The NAS will consist of various types of processors and communications networks procured from a variety of vendors. Well-defined data communications architecture is required to ensure interoperability among NAS open end-systems, and with external systems. This document was prepared in accordance with FAA-STD-005e.