The Astronics/EADS/Racal 1264B is a 6-slot, C-size VXI mainframe engineered for benchtop test and measurement systems. This lightweight chassis accommodates VXI modules in a compact form factor while delivering 500 W of usable power from an 800 W supply with auto-ranging input (115 VAC ±10% / 230 VAC ±10%). The modular power supply assembly includes wireless interconnect and comprehensive protection against over-voltage, over-temperature, over-current, and short-circuit faults with status indication across all seven rails.
## Technical Specifications
**Power Delivery**
• Available power: 800 W
• Usable power: 500 W
• Input voltage: 115 VAC ±10% (standard); 230 VAC ±10% (optional)
• Auto-ranging power supply with seven monitored rails
• Full fault protection with status indicators
**Thermal Management**
• Pressurized plenum system with baffling and honeycomb air straightener
• Slot blockers prevent thermal bypass through unused positions
• Easily removable air filters
• Fan operation monitoring with status indicators
• Acoustic noise: 56 dBA
**Physical Design**
• Lightweight benchtop chassis
• Module recess: 3 inches from front face
• Optional aluminum front door for connector and display mounting
• Operating temperature: 0° C to 50° C
• Storage temperature: -40° C to 71° C
## Key Features
• VXIbus compliant architecture
• Slot 0 controller accommodation
• Modular power supply with wireless interconnect
• Dedicated thermal isolation and even airflow distribution
• Environmental compliance: MIL-T-28800 Type III, Class 5, Style F
• EMC compliance: FCC 47 CFR Part 15 Class A, CE (EN50081-1 Emissions; EN50082-1 Immunity)
## Compatibility & Integration
The 1264B integrates standard VXI modules into a unified measurement platform. Recessed module connectors protect cabling and connections. The optional front door enables custom interface configurations without chassis modification.
