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ARINC 573 / 717 Compact & Rugged Decoder

Main Features

· ARINC 573 and 717 compliant

· Standalone decoder and  RS-232 data converter

· Robust and compact design for onboard operation  

· Wide temperature range / Extended voltage DC supply range

· Optional USB 2.0 interface for setup and data transfer

· Supported by gle/TelemetryStudio software package

· DLL library for custom applications/integration


gle/ASC-573R is an onboard, compact and rugged standalone unit designed to convert, Harvard Bi-Phase coded, 12 bit, four minorframes, avionic bus (ARINC 573 / 717) to asynchronous serial RS-232.  By using a serial terminal emulator it can be programmed to support 64 / 128 / 256 / 512 /1 024 words per second.

Each minorframe is divided into eight parts to form eight RS232 serial messages.  Each serial message is identified by an unique header, that is different for each minorframe.

In this way ARINC 573 / 717 parameters can be easily  parsed by a FTI DAU equipped of a RS-232 input serial interface.

Optionally this unit can be provided with a USB 2.0 interface and/or in a portable enclosure that, in combination with gle/TelemetryStudio software, represents a cost-effective tool for pre-flight and laboratory tests.


gle/ASC-573I is the portable version of gle/ASC-573R and can be directly powered via a standard USB port.


Block diagram

Main Characteristics

Input interface: 

RS422 Harvard Bi-Phase; supported bit rates: 768/1536/3072/6144/12288 bps

Input format:

12 bit per word, four minorframes (sync words: 0xE24, 0x1DA, 0xE25, 0x1DB)

Words speed:

64/128/256/512/1024 words per second

Output interface: 

RS 232 asynchronous serial interface; supported baud rates: 38400/57600/115200 bps

Output format:

Eight messages for each minorframe (thirty two total messages)

Power supply: 

7.5…32VDC  2 Watt max


EMI/EMC shielded, milled aluminum box, Alodine coated;  approx. 500 grams

Shock & Vibration:

Certifiable per MIL-STD 810F

Temperature / Humidity:

Operating:  -40 ¸ +85°C / 0 ¸ 95% RH non-condensing



Due to continuous developments, specifications are subject to change without prior notice. This product is not intended for applications whose its failure to perform can be expected to cause damages to properties and/or persons and/or injury to human life.