ARINC 429/717 Interfaces

Lx429-5 - PCI & PCIe Avionics Interface Cards for ARINC 429/717

LP429-5 (PCI) / LE429-5 (PCI Express)

The LP429-5 (PCI) and LE429-5 (PCIe) are personal computer expansion cards for communicating with ARINC 429 and ARINC 717 systems. These feature-rich interfaces provide programmable dual redundant data buffers and deep built-in memory. Models offer 4 to 32 ARINC 429 channels, and up to 4 ARINC 717 channels, 16 input/output avionics level discretes, and IRIG time synchronization/generation. Avionics discretes can be used as general purpose I/O or linked in hardware to databus activity as triggers or syncs.

The Lx429-5 products support maximum data throughput on all avionics interfaces. Each channel is independently configurable for high or low speed operation. Messages can be captured by a sequential monitor for all channels, or via individual message monitoring. Notification of databus activity is handled through the on-board Event Log, which can be processed by polling or via an interrupt. To dramatically reduce the host CPU processing, the sequential monitor has a DMA mode that automatically moves records to host memory through PCI/PCIe bus mastering.

Astronics Lx429-5

Key Features

  • 4 to 32 ARINC 429 channels
  • ARINC 717 (4 channels optional)
  • IRIG & 16 Avionics discrete I/O
  • Large 32 MB on-board memory
  • 48 bit, 1 uSec hardware time-tagging
  • All power drawn from backplane (no auxiliary cabling required)
  • RoHS compliant design
  • Translation DLL for application conversion
  • CoPilot® databus analyzer software available


The Lx429-5 products are half size compliant cards. Avionics transition cabling is available from the unit's I/O connectors to standard cable connections. The universal PCI or PCI Express interfaces available make the Lx429-5 compatible with virtually all modern desktop, rackmount, and server computers.


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Avionics Interfaces

  • ARINC 429 - Up to 32 channels
  • ARINC 717 - Up to 4 channels


  • Message filtering (Label/SDI)
  • Current value and multi-buffered list messages
  • Automatic bit rate detection
  • Error detection and logging


  • Periodic and asynchronous messages
  • Automatic transmit schedule generation based on rep rates or min/max times
  • Gap and parity error injection

Standard Features

  • Memory: 32 MB on-board memory
  • DIO: 16 avionics level inputs/outputs
  • IRIG: A or B, AM, PWM and PPS modes


  • Size: 6.9 x 4.2 in. (both PCI and PCIe)
  • Weight: 4.0 oz


Ordering Information

For more information or to request a quote, call +1.425.339.0281 or complete the form above.