SCXI-1000 | National Instruments(NI) 4-Slot AC SCXI Signal Conditioning Chassis
Product Introduction
SCXI-1000 is compact 4-slot AC-powered chassis for NI SCXI series signal conditioning modules, official discontinued legacy DAQ rack, centralized power supply, backplane bus timing & signal routing for installed SCXI signal conditioning cards(SCXI-1102/1125/1303 etc.), builds front-end pre-amplification, filtering, isolation for industrial sensor signals before DAQ digitization; max 8 chassis daisy-chain via dedicated cable for large channel-count measurement system.
Description
Part Code Definition
SCXI-1000 = standard AC input 4-slot SCXI chassis; variant SCXI-1001 is DC 12V powered version, incompatible AC mains; 7 factory configurable input AC voltage specs(110V/220V etc.) for global grid adaption.
Technical Specifications
Input power:100~240VAC 50/60Hz built-in switching PSU; backplane output +5V(max2.04A), ±12V(max0.6A), single slot rated power ≤7WDimension:249×196×178mm(9.8×7.7×7.0inch), net weight≈3.9kgAmbient:operating 0℃~+50℃, storage -20℃~+70℃, RH10%~90% non-condensingCertification:UL,CE,EN61010-1,IEC61010 safety certificationStructure:all-metal shielded enclosure with built-in cooling fan and dust filter for industrial anti-EMI performance
Interface & Communication Configuration
Rear panel:AC power inlet fuse holder, daisy-chain SCXI bus connector for multi-chassis cascadeFront slot:4 standard SCXI card slots with internal backplane analog/digital bus, module insertion golden fingerSignal connection:front terminal blocks on inserted SCXI modules for field sensor wiring; rear shielded cable port connects to NI PCI/PCIe DAQ acquisition board for data upload
Core Functions
1.Centralized power distribution:stabilized multi-rail DC power supply for all plugged SCXI conditioning modules2.Unified timing & trigger bus:chassis backplane synchronizes sampling clock and hardware trigger across all installed cards3.Signal multiplex routing:internally routes conditioned analog/digital signals to DAQ controller via dedicated bus4.System cascade:up to 8 units daisy-chained to one single NI DAQ board, expand measurement channel capacity flexibly5.EMI shielding:full metal cabinet suppress industrial field interference for low-noise weak signal collection(thermocouple/strain gauge/mV level signal)
Application Scenarios
Laboratory bench test, industrial process multi-point temperature/vibration/strain monitoring, automotive component durability test bench, old NI SCXI DAQ system spare replacement, aerospace environmental measurement cabinet retrofit.
Operation & Maintenance Notes
Mount on standard 19-inch cabinet or desktop placement; confirm chassis AC voltage jumper matches local grid before power-on; periodically clean rear fan filter to avoid overheating; use shielded twisted pair for all field sensor wiring, separate from high-power AC cable; replace damaged SCXI module powered-off to prevent backplane short-circuit damage.
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