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USB Interface for ARINC 429

These pocket-sized USB adapters are the easy and portable way to interface your computer to ARINC 429 and 717 databuses.

Intuitive Test/Simulation Software

CoPilot is the most advanced software on the market today for avionics databus test, simulation and analysis.

PCI and PCI Express ARINC 429/717 Avionics Interfaces

download datasheet
LP429-5 and LE429-5 Family of Products
  • 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

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.


  • 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


  • Receive:
    • Message filtering (Label/SDI)
    • Current value and multi-buffered list messages
    • Automatic bit rate detection
    • Error detection and logging
  • Transmit
    • Periodic and asynchronous messages
    • Automatic transmit schedule generation based on rep rates or min/max times
    • Gap and parity error injection
  • ARINC 717 channels (optional)


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.

The Downloads section contains data sheets with complete information for Lx429-5 products.


The easiest way to use the ARINC 429 or ARINC 717 functionality of your LX429-5 board is with CoPilot, Ballard's Windows-based software. CoPilot is an intuitive, interactive program that simplifies the testing and simulation of ARINC 429/717 systems. In CoPilot, you can quickly build transmit schedules and enter and display data in meaningful engineering units. The Sequential Monitor captures, records, filters, displays, and exports 429 traffic. Equipment ID and label definitions are built into the CoPilot 429 database. For ARINC 717, CoPilot allows you to view, analyze, simulate and record bus activity from an aircraft Digital Flight Data Acquisition Unit or Digital Data Recorder output databus. CoPilot features include virtual instruments, hardware and software playback modes, and scripting. CoPilot also supports MIL-STD-1553, ARINC 708, ARINC 664/AFDX® protocols and limited serial communications. You can add CoPilot at anytime. However, you will receive a discount when you purchase CoPilot bundled with the hardware.
   »Find out more about CoPilot



Alternatively, users can develop their own applications using the included BTIDriver API. With only a few function calls, a program can operate the Lx429-5 and process messages to and from the avionics databuses. Functions include routines for transmitting, receiving, scheduling, recording, time-tagging, and data manipulation.


Driver software is included for Windows®, Linux®, VxWorks®, INTEGRITY®, LabVIEW, and LabVIEW-RT. Contact Ballard for availability of drivers for other operating systems.

translation DLL

The translation DLL (included) makes it easy to convert applications previously written for other Ballard products to run on this family of products.

Arinc 429

Part Numbers
PCI PCI Express
4 LP429-5/2R2T LE429-5/2R2T
8 LP429-5/8R0T LE429-5/8R0T
LP429-5/4R4T LE429-5/4R4T
LP429-5/0R8T LE429-5/0R8T
16 LP429-5/16R0T LE429-5/16R0T
LP429-5/12R4T LE429-5/12R4T
LP429-5/8R8T LE429-5/8R8T
LP429-5/4R12T LE429-5/4R12T
LP429-5/0R16T LE429-5/0R16T
32 LP429-5/32R0T LE429-5/32R0T
LP429-5/24R8T LE429-5/24R8T
LP429-5/16R16T LE429-5/16R16T


Arinc 429/ARINC 717

Total Channels Part Numbers
PCI PCI Express
4 None LP429-5/0R0T/717 LE429-5/0R0T/717
12 LP429-5/6R6T/717 LE429-5/6R6T/717
28 LP429-5/14R14T/717 LE429-5/14R14T/717

nR = number of receive channels
nT = number of transmit channels

CoPilot Systems

To include CoPilot software, add "CP-" before the Part No.

Example: CP-LP429-5/4R4T

  Datasheet Lx429-5 Datasheet 7/26/2010
X Product Manual Lx429-5 Manual 1/8/2010
X API Manual BTIDriver 429 Manual 11/21/2013
X API Manual BTIDriver 717 Manual 11/21/2013
X API Manual BTIDriver 717 Repeater Addendum 9/14/2007
X Driver Lx429-5 Driver Win32/64 8/12/2015
X Driver 32-bit Windows Driver Installer 8/12/2015
X Driver 64-bit Windows Driver Installer 8/12/2015
X Examples Lx429-5 Java Examples 8/12/2015
X Examples Lx429-5 C Examples 8/12/2015
X Examples Lx429-5 VB Examples 8/12/2015
X Examples Lx429-5 LabVIEW Examples 8/12/2015
X Examples Lx429-5 VB.NET Examples 8/12/2015
X Examples Lx429-5 C-Sharp Examples 8/12/2015
X Examples Williamsburg Library and Examples 3/3/2010
X Linux BTIDriver Libraries for Linux 5/20/2015
X Linux BTI PCI Linux Kernel Module 5/20/2015
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Databus Analyzer & Simulator

LFH to 2 D-sub connectors

LFH to LFH connector

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