RAR-429 Series

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ARINC 429 Interface cPCI Card

  • Eight or sixteen Tx/Rx ARINC 429 channels

  • Sixteen bi-directional discretes
  • Programmable data rates
  • Error injection & detection
  • IRIG-B synchronization


The RAR-429 module is a rugged, reliable, full featured, CompactPCI module designed to provide a stand-alone, ARINC 429 interface for avionics applications. Up to 16 ARINC429 channels are supported on a 3U CompactPCI module. The RAR-429 offers full functional test, simulation, and monitoring for ARINC 429 test and simulation applications.


The RAR-429 modules offer complete, integrated data bus functionality for the ARINC 429 protocol, Maximum data throughput is supported on all channels while providing on-board message scheduling, label filtering, multiple buffering options, time-tagging, and error detection. In addition, IRIG-B Receiver (AM or DC/TTL) and Generator (DC/TTL) capabilities are supported. Both transmit and receive data rates are programmable over range from 5 kHz to 150 kHz.


The RAR-429 series offers independent, software programmable data rates and parity, error detection and automatic transmit channel slew rate adjustment. All channels operate independently, with 2 MBytes of on-board RAM providing large transmit and receive data buffers. The 16 discrete I/Os support an input voltage range from TTL to 50 volts. When configured as outputs, the open drain configuration can sink up to 0.5 amps.

Data Handling

On-board firmware, large data buffers and a high-level offer total flexibility for monitoring and generating ARINC bus traffic.
Simultaneous Scheduled and Burst Mode (FIFO) messaging is supported on all ARINC 429 transmit channels. Each ARINC 429 receive channel provides simultaneous Dedicated and Buffered Mode storage, along with label/SDI filtering. Three different methods are provided for buffering received data:
  • Buffered Mode utilizes a separate circular buffer for each channel.
  • Merged Mode combines all received data into a single, time-sequenced circular buffer.
  • Dedicated Mode provides a snapshot of the current received data.


The RAR-429 module is supplied with an API for Windows 2000/XP/ME/ Win 7. An ATEasy driver, sample code, high level C and C++ interface libraries, and documentation is provided. Support for LabVIEW is also available.  


  • Automatic Test Equipment (ATE)
  • LRU and SRU test
  • System level test