Channel & Wiring Configuration

• 32-channel fully differential analog input (single-ended mode unavailable)
• Four independent 8-channel amplifier groups, segmented parallel signal conditioning
• No channel-to-channel galvanic isolation, channel-to-chassis basic isolation
• Rear 96-pin shielded DIN connector for front terminal block matching
• All channels multiplexed to one DAQ analog input channel via SCXI backplane

Programmable Gain & Input Range

• Software-selectable gain multiples: ×1, ×2, ×5, ×10, ×20, ×50, ×100
• Max differential input range: ±10 V (gain ×1)
• Min measurable input range: ±100 mV (gain ×100)
• Common-mode input voltage range: ±10 V for all gain gears

Filter & Scanning Parameters

• Onboard filter: Fixed 200 Hz 4th-order low-pass filter (no adjustable gears)
• Max multi-channel aggregate scan rate: 33 kS/s
• Channel settling time: 45 μs for full-scale accurate sampling
• 50/60Hz noise suppression: Auxiliary filtering via DAQ side averaging

Key Electrical Specifications

• Input impedance: >100 MΩ per differential channel
• 60Hz CMRR: >115 dB; 50Hz CMRR: >120 dB
• Nonlinearity error: 0.003% FSR
• Overvoltage protection: ±42 VDC powered on, ±27 VDC powered off
• Backplane power consumption: 3.0 W typical operating power
• Built-in CJC temperature sensor for thermocouple cold junction calibration

Mechanical & Environmental Specifications

• Dimension: 172×86×32 mm, standard single-slot SCXI module
• Operating temperature: -20℃ ~ +70℃
• Storage temperature: -40℃ ~ +85℃
• Humidity: 10%–90% non-condensing

Compatibility Matching List

• Matched terminal block: SCXI-1303 shielded screw terminal block
• Compatible chassis: SCXI-1000, SCXI-1001
• Compatible controllers: SCXI-1600, PCI/PXI SCXI bus adapters
• Official status: Obsolete, available for aftermarket replacement

Software Compatibility

• Drivers: NI-DAQmx, Traditional NI-DAQ
• Configuration tools: NI Measurement & Automation Explorer (MAX)
• Supported software: LabVIEW, LabWindows/CVI, Python DAQmx, C#

Pros & Limitations

• Pros: Segmented independent amplifiers for faster scanning than SCXI-1100, built-in CJC for thermocouple testing, ultra-high input impedance, strong power-frequency interference suppression, high-density differential wiring
• Limitations: No optional low-frequency filter gears, no signal isolation, unsuitable for high-speed dynamic synchronous signal collection