The NI PXI-1031 is a 4-slot PXI chassis designed for modular test and measurement systems requiring flexible configuration and global deployment. It accommodates 3U PXI and 3U CompactPCI modules across one system slot and three peripheral slots, enabling integration of both legacy and current instrumentation. The chassis ships with a universal AC power supply supporting 100–240 VAC input, with operating margins extending to 90–264 VAC at 50/60 Hz, making it suitable for operation across international power grids.
Technical Specifications
Chassis Architecture
• 4 total slots: 1 system slot, 3 peripheral slots
• Module compatibility: 3U PXI and 3U CompactPCI
• PXI Specification Revision 2.1 and PXI Hardware Specification compliant
Power Delivery
• Universal AC supply: 100–240 VAC nominal, 90–264 VAC operating range
• Frequency: 50/60 Hz nominal, 47–63 Hz operating range
• Supply capacity: 400 W universal AC
• Efficiency: >70% at full load, normal input voltage
• Over-current protection: 6.3 A fuse (non-user-serviceable)
• Front-panel power switch controls internal supply; AC cable provides main disconnect
Thermal Management
• Passive cooling with temperature-controlled fan speed (auto/high switch)
• Acoustic emissions: 35–40 dBA per ISO 7779
• 25 W cooling capacity per slot
• Ventilation through top, base, front, rear, and sides; intake via base
• Optional filler boards for unused slots enhance thermal performance
Synchronization & Timing
• VCXO onboard clock
• 10 MHz low-jitter reference clock for device synchronization
• 8 PXI trigger lines per slot
• Sub-microsecond integrated system timing across all slots
• Daisy-chained local bus for adjacent peripheral slots; supports star trigger and high-speed TTL side-band communication
Environmental Operating Conditions
• Temperature: -20°C to 55°C
– Key Features
• Backplane interoperability with 5 V and universal PXI-compatible products
• Standard CompactPCI compatibility
• All four slots equipped with trigger infrastructure
– Typical Applications
Automation test, data acquisition, instrumentation, and scalable measurement platforms requiring multi-module integration.
– Compatibility & Integration
Works with PXI-compliant modules and CompactPCI instruments. Local bus supports daisy-chained topology for high-speed digital communication between adjacent slots.
