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Shadin 1553 to ARINC 429 Avionics Interface System Receives TSO Certification

Friday, April 12, 2013 – Shadin Avionics

Shadin Avionics announces TSO certification for the first of its AIS-460 (Avionics Interface System) line of 1553 to ARINC 429 data conversion units.

Under contract with Support Systems Associates Inc. (SSAI), Shadin modified the AIS-460 to integrate the APX-119 transponder on select C-130 aircraft for the purpose of achieving Mode Select (Mode S) Enhanced Surveillance (EHS) capability. Shadin also provides a modified version of its AMS-2500 Altitude Management System to accomplish Pilot Selected Altitude functions for the program.

“The SSAI APX-119 integration program exemplifies the value of Shadin’s AIS product platform,” commented Dan Nelson, CEO of Shadin Avionics. “Shadin can offer a Happy Box data conversion unit in a fraction of the cost and time as compared to typical development programs.”

The AIS-460 1553/Digital conversion platform joins the previously released and certified AIS-360 Digital conversion platform, the AIS-450 Digital/Synchro conversion platform and the soon to be released AIS-380 Analog/Digital conversion platform to form the basis of Shadin’s Avionic Interface System product family.

About Shadin Avionics

Shadin is an acknowledged industry leader in providing world class data collection and data conversion products for all types of aircraft. Shadin Avionics specializes in the design, manufacture, support and distribution of Avionics Interface Systems (AIS), Fuel Flow Systems, Engine Trend Monitoring (ETM), Altitude Management Systems, Air Data Computers (ADC) and other instrumentation for turbine, piston and rotor aircraft for the military, general and corporate aviation markets. For more information, please visit