Slot & Backplane Configuration

• Slot layout: 1 system slot + 3 peripheral slots, total 4 single-width 3U slots
• System slot compatibility: Supports up to 4-slot-wide PXI embedded controllers
• Backplane compliance: PXI Rev.2.2, CompactPCI PICMG 2.0 R3.0
• Reference clock: Built-in 10 MHz backplane clock with ±25 ppm accuracy, max 250 ps inter-slot skew
• Trigger bus: Complete PXI local trigger, star trigger and analog trigger routing

AC Power Input Specifications

• Rated input voltage: 100–240 VAC universal wide-range input
• Operating voltage tolerance: 90–264 VAC with automatic voltage adaptation
• Input frequency: 47–63 Hz covering global industrial mains frequency
• Input current: 2 A @ 240 VAC, 4 A @ 100 VAC full-load operation
• Power supply efficiency: ≥70% for AC variant under rated load

DC Power Input (PXI-1031DC Only)

• DC input voltage range: 18–30 VDC isolated rear-panel terminal input
• Full-load input current: 10 A @ 30 VDC, 30 A @ 18 VDC
• DC variant efficiency: ≥65% typical under full-load condition
• Derating rule: Backplane power output derates 5 W/°C above 45 ℃ ambient temperature

Backplane DC Power Output Ratings

• +3.3 V rail: 12 A continuous output, overvoltage threshold 3.76–4.3 V
• +5 V rail: 17 A continuous output, overvoltage threshold 5.74–7.0 V
• +12 V rail: 2 A continuous output; -12 V rail: 0.8 A continuous output
• Power combination limit: AC version max 145.6 W, DC version max 112 W for 3.3 V/5 V combined load
• Per-slot cooling power limit: 25 W for single peripheral module

Cooling & Acoustic Performance

• Fan parameters: 101.1 CFM positive-pressure forced air cooling, bottom intake rear exhaust
• Fan modes: AUTO (temperature adaptive) / HIGH fixed-speed mode
• AC variant noise: 35.0 dBA(auto) / 51.7 dBA(high) @ 25 ℃ ambient
• DC variant noise: 45.5 dBA(auto) / 49.4 dBA(high) @ 25 ℃ ambient

Mechanical & Environmental Specifications

• Dimension: 177 × 257.1 × 212.8 mm; +12.7 mm height with rubber feet
• Weight: 5.0 kg bare chassis, aluminum alloy and cold-rolled steel housing
• Operating temperature: 0 ℃ ~ +50 ℃; Storage temperature: -20 ℃ ~ +70 ℃
• Humidity: 20%–80% non-condensing(operating), 10%–95% non-condensing(storage)
• Shock & vibration: 30 g operational shock, 0.3 grms operational random vibration
• Safety rating: IEC 61010-1 CAT II, Pollution Degree 2, max altitude 2000 m

Compatibility Matching List

• Compatible controllers: PXI-8186, all legacy NI 3U embedded PXI controllers
• Compatible modules: All 3U PXI/CompactPCI peripheral modules including PXI-8423
• Accessories: Optional portable handle, 19-inch rack mounting bracket
• Official status: Fully obsolete, only aftermarket replacement inventory available

Software Compatibility

• Drivers: No dedicated driver, plug-and-play via PXI backplane enumeration
• Configuration tools: NI MAX for backplane resource verification
• Supported software: All legacy LabVIEW, NI-Serial, NI-DAQmx versions compatible with PXI-8186

Pros & Limitations

• Pros: Dual AC/DC power options for desktop/mobile deployment, ultra-low auto-mode fan noise, complete PXI trigger and clock resources, multiple installation methods, robust multi-level overcurrent/overvoltage protection
• Limitations: Only 3 peripheral slots with limited expansion capacity, power derating at high temperature, obsolete hardware lifecycle, no built-in EMI shielding baffles