The DDC BU-67X02U is a USB avionics interface device that enables real-time testing and integration of MIL-STD-1553 and ARINC 429 avionics systems. Connected via USB 2.0 to a host computer, this compact portable unit supports dual-redundant 1553 bus control, remote terminal emulation, and four ARINC 429 receive channels plus two transmit channels. It delivers the processing power and protocol fidelity required for flight line diagnostics, system development, troubleshooting, and software validation across defense and commercial aviation platforms.
## Technical Specifications
**MIL-STD-1553 Interface**
• Up to (2) dual-redundant channels with independent Bus Controller and Multi-Remote Terminal (0–31) operation
• Concurrent Bus Monitor (MT) on each channel
• Advanced error sampling at 50 ns resolution
• 1 MB RAM with parity per channel
• Programmable direct or transformer coupling
• ACE TREME core architecture
**ARINC 429 Interface**
• (4) receive channels
• (2) transmit channels
• Full data line rate support: low speed, high speed, and ARINC 575
• Automatic slew rate adjustment
• Programmable Tx/Rx channel configuration
**Discrete I/O & Timing**
• (8) user-programmable digital I/O lines (+35V avionics capable)
• IRIG-B time code input
• 1 pulse-per-second output
• 48-bit time stamp at 100 ns resolution
• IRIG-106 Chapter 10 monitor
**Power & Environment**
• USB bus powered with external power option
• Operating temperature: −40°C to +85°C (standard); extended temperature hardware available
• Ruggedized portable and laboratory configurations available
## Key Features
• Dual-redundant 1553 architecture with simultaneous Bus Controller/Monitor operation
• Twinax connectors for standard avionics integration
• Lightweight, portable construction
• Includes BU-69092S MIL-STD-1553 AceXtreme® C SDK and DD-42992S ARINC 429 C SDK with source code samples
• Optional software: BusTrACEr, ARINC 429 Data Bus Analyzer, ARINC 615 Data Loader, LabVIEW support, dataSIMS real-time analysis
## Typical Applications
Product development, system integration, flight line test, software development, portable diagnostics, and bench troubleshooting of avionics equipment.
## Compatibility & Integration
Available in single-protocol (1553-only, ARINC 429-only) or multi-I/O configurations. USB 2.0 interface; LabVIEW support available. Variant BU-67202U1 provides single dual-redundant 1553 channel with BC/Multi-RT/Monitor in compact form.
