ARINC 858P1-1 PDF

This document serves as an ARINC Standard to define the IPS avionics architecture, functions, and interfaces, and to describe implementation options and constraints as well as high level details regarding the accommodation of different applications. The Airborne IPS System described in this standard may be hosted in a Communications Management Unit (CMU) or other equivalent avionics that provides the IPS network stack and air-ground routing functionality. This includes, as necessary, other systems that interface and interoperate with the CMU or equivalent function.

This document also describes the end-to-end context of ATN/IPS, as it is recognized that some of the requirements that are levied on the aircraft also impose similar requirements on the peer ground entities. This considers the various aspects of the potential ground entities, including deployment options and architectures, IPS coexistence with other protocol stacks, security, and other aspects. Therefore, ground requirements and considerations are also captured in Part 2 of this document.

The intent of this document, in coordination with other related industry standards, is to provide implementers of the Airborne IPS System with the level of detail necessary to interface with other aircraft systems and to interoperate securely with Ground IPS Systems.

Purpose

Airlines, aircraft operators, and other airspace users rely on safe, secure, and reliable data communication services to meet their day-to-day operational needs. Air Navigation Service Providers (ANSPs) and Communication Service Providers (CSPs), which includes the responsibilities of both Air-Ground Communication Service Providers (ACSPs) and Communication Network Providers (CNPs), must deliver these services globally and meet internationally recognized standards for communications performance.

The International Civil Aviation Organization (ICAO) Global Air Navigation Plan (GANP) and the European Union (EU) and United States (US) Air/Ground Data Communications Strategy identify a globally harmonized target aviation communications environment that includes a communication infrastructure based on selected commercial Internet Protocol (IP) standards. ICAO refers to this aviation communication network as the Aeronautical Telecommunication Network using the Internet Protocol Suite (ATN/IPS¹). The ATN/IPS network will be implemented onboard aircraft and in ground infrastructure to support safety-related services, including Air Traffic Services (ATS) and Aeronautical Operational Control (AOC). The ATN/IPS network infrastructure is considered the successor to the Airline Communications Addressing and Reporting System (ACARS) and to the ICAO-defined network infrastructure based on the Open Systems Interconnection (OSI) model, referred to as ATN/OSI.

The AEEC developed the ATN/IPS avionics standard in two steps. The first step analyzed and captured high-level user requirements in an ATN/IPS roadmap focusing on the airline user, and where possible, the requirements of ground users such as ANSPs. The roadmap defined the perimeter of the avionics standards for ATN/IPS, and it provided general ATN/IPS standardization work recommendations, which served as valuable input for coordination with other standards development organizations including ICAO, EUROCAE, and RTCA.

This document represents the second step of the process, which is the execution of the recommendations for development of an ARINC Standard for the airborne component of the ATN/IPS. The AEEC coordinated the development of this avionics standard with ICAO, EUROCAE, and RTCA to identify interdependencies and ensure consistency among the ATN/IPS-related industry standards developed by these organizations.

¹ In this document the term “ATN” is used to refer generically to the Aeronautical Telecommunications Network and could be either ATN/IPS or ATN/OSI. Furthermore, if only “IPS” is used, this is considered equivalent to referring to “ATN/IPS.”