The NI SCXI-1000 is a 4-slot chassis designed to house and power SCXI signal conditioning modules. It provides signal routing, data transmission, and timing synchronization between modules via its SCXIbus backplane architecture. The chassis integrates with National Instruments E Series and Basic multifunction DAQ devices, supporting configurations from single-chassis installations to daisy-chained systems of up to eight units. A shielded enclosure and optimized internal circuitry minimize external interference, ensuring accurate signal conditioning in industrial and laboratory measurement systems.
Technical Specifications
• Module Slots: 4 SCXI slots with Slot 0 dedicated to power and control circuitry
• SCXIbus Architecture: Guarded analog and digital bus for signal routing, data transfer, module programming, and timing signals
• Internal Power Distribution:
– V+ Supply: +18.5 to +25 V (1.5 V peak-to-peak ripple)
– V– Supply: –18.5 to –25 V (1.5 V peak-to-peak ripple)
– +5 V Supply: 4.75 to 5.25 V (50 mV peak-to-peak ripple)
• Current Ratings: V+ at 680 mA, V– at 680 mA, +5 V at 200 mA
• Module Power Dissipation: 9 W maximum per module (recommended)
• Backplane Fuses: V+ and V– supplies fused at 1 1/2 A
• Cooling: Brushless fan with replaceable filter
– Key Features
• Accepts 100–240 VAC input with international power configurations (100, 120, 220, 240 VAC support)
• Low-noise design with shielded construction for demanding environments
• Chassis control circuitry synchronizes modules with DAQ devices for high-speed operations
• Scalable architecture enables expansion from single-chassis to 8-chassis daisy-chain configurations
– Typical Applications
Multi-channel data acquisition, signal conditioning in automated test systems, laboratory measurement setups requiring channel expansion and enhanced measurement precision.
– Compatibility & Integration
Compatible with E Series and Basic multifunction DAQ devices. Supported by NI-DAQmx and NI-DAQ 7 drivers. Programming via LabVIEW, LabWindows/CVI, or Measurement Studio.
Dimensions: 24.8 cm (D) × 19.5 cm (W) × 17.7 cm (H) including fan.
