The NI FP-DO-403 is a 16-channel sinking discrete output module engineered for industrial automation, testing, and control applications requiring precise device switching and signal routing. Each channel delivers 2 A at voltages from 5 to 30 VDC, with a module-level current capacity of 16 A and exceptionally low output impedance of 0.12 Ω. The module responds with 50 µs output delay and supports a 20 kHz update rate across all channels, making it suitable for time-critical control loops and high-speed switching applications.
Technical Specifications
• Output Channels: 16 sinking configuration
• Voltage Range: 5 to 30 VDC
• Output Current: 2 A per channel; 16 A module maximum
• Output Impedance: 0.12 Ω
• Output Delay: 50 µs
• Update Rate: 20 kHz (all channels)
• Maximum OFF-State Leakage: 50 µA
• Power Consumption: 600 mW from network module
• Channel-to-Ground Isolation: 250 Vrms CAT II continuous
• Dielectric Withstand: 2,300 Vrms, 5 seconds
– Key Features
• Optical isolation from remaining FieldPoint bank and module-to-module isolation
• ON/OFF LED indicators per channel for visual feedback
• 8 COM and 8 VSUP terminals for external power distribution
• Flyback diodes included; external protection recommended for inductive loads
• cFP-DO-403 variant includes electronically fused outputs for overcurrent and short-circuit protection
• Onboard diagnostics support efficient installation and maintenance
– Typical Applications
• Relay and solenoid control
• Motor starter circuits
• Alarm and status signaling
• Industrial process automation
• Hazardous location monitoring (Class I, Division 2, Groups A–D, T4; Class I, Zone 2, AEx nA IIC T4)
– Compatibility & Integration
Mounts directly to FP-TB-x FieldPoint Terminal Base or cFP-BP-x Compact FieldPoint Backplane. Utilizes standard 37-pin D-Sub connectors for custom cable integration. Operating temperature range –40 to 70 °C; storage temperature –45 to 85 °C. Rated for 5 grms random vibration and 50 g shock. Maximum operating altitude: 2,000 meters.
