The NI 781719-01 is a replacement modular power supply shuttle designed specifically for the PXIe-1085 chassis. It delivers stable, regulated DC power to support PXI, PXI Express, CompactPCI, and CompactPCI Express modules across the chassis backplane. This unit handles total system power output of 925 W with maximum usable power of 791 W (12 GB/s) or 775 W (24 GB/s), meeting the electrical demands of mixed-module PXI systems operating at up to 24 GB/s aggregate bandwidth.
Technical Specifications
Power Output & Distribution
• Total power output: 925 W
• Maximum usable power (PXIe-1085 12 GB/s): 791 W
• Maximum usable power (PXIe-1085 24 GB/s): 775 W
• DC outputs: +3.3 V @ 60 A, +5 V @ 44–49 A (model-dependent), +12 V @ 62 A, −12 V @ 4 A, 5 VAUX @ 2 A
• Total system slot current limit: 45 A
• Power dissipation per system slot: ≤140 W; per peripheral slot: ≤38.25 W
Input Specifications
• Input voltage range: 100 V AC to 240 V AC
• Operating voltage range: 90 V AC to 264 V AC
• Input frequency: 50/60 Hz (operating 47–63 Hz)
• Input current rating: 12 A to 6 A
• Over-current protection: 15 A circuit breaker
• Efficiency: 70% typical
Output Regulation
Line regulation across 3.3 V (±0.2%), 5 V (±0.1%), and ±12 V (±0.1%) maintains stable voltage delivery under varying input conditions.
Environmental & Acoustic
• Operating temperature: 0 °C to 55 °C
• Relative humidity: 10% to 90% non-condensing
• Acoustic noise (0–30 °C): 51.2 dBA
– Key Features
• Modular shuttle design with mounting screws and dual carry handles
• Front-panel power switch for DC output control
• Rear-panel 8-pin connector for external control
• Inhibit mode switch for manual or system-controller operation
• Remote inhibit and voltage monitoring connector
• AC power cable provides main disconnect
– Compatibility & Integration
Designed for the NI PXIe-1085 chassis, supporting both 12 GB/s and 24 GB/s bandwidth configurations. Compatible with PXI, PXI Express, CompactPCI, and CompactPCI Express modules with per-slot bandwidth up to 4 GB/s or 8 GB/s.
