Simphone Data Link Unit plus


The ONLY FAA TSO-C159a Certified Data Link Unit for FANS over Iridium Capability 

TrueNorth Avionics Simphonē Data Link Unitplus is business aviation’s newest, genuine FANS-1/A+ system with certified RTCA DO-178B, Level D software. Featuring a built-in Iridium Satcom transceiver, our DLU works with Simphonē OpenCabin airborne telecommunications systemsand a broad range of other systemsto let flight crews communicate with the ground or other aircraft without impacting cabin communications. 

Our DLU requires no configuration; there are no set-up screens. Simply install. 

Simphonē Data Link Unitplus has STCs on a number of popular aircraft types, including most recently a Bombardier CL601 and a fleet of Cessna Citation Utras.

FANS-1/A+ simplifies pilot to controller communication, reduces communications error and increases efficiency in congested airspace. Our DLU component can be integrated with a number of flight decks. 


  • FAA, CAN and EASA TSO-C159a Certified for FANS over Iridium
  • FANS-1/A+ capable
  • RTCA DO-178 Level D software certified
  • Compatible with all operational and planned ACARS® and AFIS® Data Link systems
  • Lightweight and compact
  • Requires no cooling, no software setup
  • Installs with a single connector
  • Smallest standalone data link solution available
  • Simphonē DLU uses its own Iridium antenna
  • Compliant with ARINC 618 Satcom Data Unit (SDU)

Efficiency Meets Safety

  • Text-based interface reduces communications errors, eliminates repetition and language issues like accents
  • Automatic positioning reports to removes crew requirement to report, lowering crewmember stress
  • Fly more direct routes and trim operating costs

Learn More

Contact your friendly TrueNorth Account Manager for more details and to get a copy of our Simphonē Data Link Unitplus brochure.

See the News Release: TrueNorth Avionics Simphonē Data Link Unit-Plus Awarded TSO.