CNS/ATM Gateway

Data link communications between aircraft and air traffic control (ATC) require an interface between air/ground data link networks and ATC systems that recognizes different message formats—both current and future. The ARINC Communications, Navigation, Surveillance/Air Traffic Management (CNS/ATM) Gateway meets this need.

The Gateway supports full automatic dependent surveillance (ADS) and controller-pilot data link communications (CPDLC) message sets, in accordance with existing standards and specifications. For CPDLC, the Gateway allows the ATC end system to encode and decode bit-oriented messages in accordance with a standard protocol (RTCA DO-219). These encoded, two-way data link messages are then converted to ARINC 622 format and sent to the aircraft over the Aircraft Communications Addressing and Reporting System (ACARS^®) network, which uses ARINC's GLOBALink/VHF technology.

The Gateway also provides:

• Capability for a radio operator on non-data-link-equipped aircraft to enter voice position reports
• Message-assurance function
• Geographic filters that increase message-transfer efficiency
• Display of voice-position reports on ATC end systems
• Capability for bit-oriented messages to be converted to or from character-oriented messages for transfer over ACARS
• Hard copies of flight records
• ATC facility with aircraft data link capabilities
• Exchange of address information between ATC and aircraft

The CNS/ATM Gateway can be used as an ARINC stand-alone system or be integrated with an existing ATC system. Gateway modules are integrated with ATC equipment supplied by Aerospace Engineering, Alenia, Camp Systems, Hughes, Lockheed Martin, NITA, Northrop Grumman, Raytheon, Telephonics, and others.