The Astronics/EADS/Racal 1264C/D is a 6-slot C-size VXIbus mainframe engineered for space-constrained rackmount installations. This platform delivers 500 W usable power across seven monitored rails, supporting automated test systems and laboratory instrumentation with active-automatic VME interrupt handling and integrated system monitoring.
## Technical Specifications
**VXIbus Architecture**
• Compliant with VXIbus Specification Revision 2.0 and earlier
• 6 C-size module slots
• Active-automatic VME interrupt acknowledge and bus grant daisy chaining—no manual switch or jumper configuration required
**Power Delivery**
• Total available power: 800 W
• Total usable power: 500 W
• Input: 115 VAC ±10% standard; 230 VAC ±10% optional (Order Option 71)
• AC line frequency: 47 to 63 Hz
• Maximum input power: 1000 VA
• Modular power supply with status indicators for all seven rails
• High dynamic current capability for signal fidelity and measurement accuracy
**Thermal Management**
• Pressurized plenum cooling system with even airflow distribution
• Integrated slot blockers prevent air bypass through unused slots
• Audible noise: 55 dBA
**Monitoring & Control**
• System monitor with front-panel LED annunciators
• Real-time status indicators: VXI voltage, cooling fan, air temperature
• Monitors all seven power supplies, fan operation, and ambient temperature
**Mechanical Design**
• Integral aluminum front door and cable tray (1264C/D)
• Front door suitable for mounting connectors, receivers, keyboards, or displays
• Modules recessed 3 inches behind door—provides connector access and cable service loop space
• Rackmount ears and slides included
• Dimensions: 16.75″ H × 8.7″ W × 21.3″ D
• Chassis weight: 27 lbs (12.3 kg); Shipping weight: 50 lbs
## Key Features
• Automatic VME bus arbitration eliminates manual configuration
• Distributed thermal control with slot blocker system
• Comprehensive power rail and environmental monitoring
• Space-optimized design for limited rack installations
• Modular power supply architecture
## Environmental & Compliance
• Operating temperature: 0° C to 50° C
• Storage temperature: -40° C to 71° C
• FCC 47 CFR Part 15 Class A; CE Mark: EN50081-1, EN50082-1
• Safety: EN61010-1, UL 3111-1
• Environmental: MIL-T-28800 Type III, Class 5, Style F
## Compatibility & Integration
• VXIplug&play compatible
• Fully backward compatible with VXIbus Revision 2.0 and earlier specifications
