CFP-DO-403
May 15, 2026

CFP-DO-403

The cFP‑DO‑403 is a 16‑channel, 5–30 VDC sinking digital output module for the NI Compact FieldPoint distributed I/O system. It drives sinking (NPN‑type) loads such as solenoids, relays, contactors, lamps, and solid‑state inputs, with high per‑channel current and strong isolation. EOL / Discontinued; common replacement: NI‑9476 (C‑Series, 16‑ch sinking, 2 A).

Description

CFP-DO-403.jpg

CFP-DO-403(2.jpg

cFP-DO-403

National Instruments Compact FieldPoint Digital Output Module

General Description

The cFP‑DO‑403 is a 16‑channel, 5–30 VDC sinking digital output module for the NI Compact FieldPoint distributed I/O system. It drives sinking (NPN‑type) loads such as solenoids, relays, contactors, lamps, and solid‑state inputs, with high per‑channel current and strong isolation. EOL / Discontinued; common replacement: NI‑9476 (C‑Series, 16‑ch sinking, 2 A).

Part Number

  • Model: cFP‑DO‑403

  • NI PN: 777318‑403

Key Specifications

  • Channels: 16 sinking digital outputs (NPN)

  • Voltage Range: 5–30 VDC (nominal 12/24 VDC)

  • Per‑Channel Current: 2 A continuous

  • Total Module Current: 16 A max

  • Isolation: 250 Vrms CAT II channel‑to‑ground; withstand 2,300 Vrms, 5 s

  • Update Rate: 20 kHz all‑channel

  • Protection: Per‑channel overcurrent, short‑circuit, thermal shutdown (auto‑reset)

  • Connectors: 37‑pin D‑Sub (for cFP‑CB‑1 / CB‑3 terminal bases)

  • Indicators: 16 × channel LED, POWER, READY (green)

  • Power Consumption: 1.8 W typical (from backplane)

  • Operating Temperature: ‑40 °C to +70 °C

  • Storage Temperature: ‑55 °C to +85 °C

  • Humidity: 10–90% RH, non‑condensing

  • Certifications: CE, UL, CSA, FM (hazardous locations)

  • Weight: ~193 g (6.81 oz)

Main Features

  • 16‑Channel Sinking Output: 2 A per channel, ideal for 24 VDC industrial loads (relays, solenoids, indicators).

  • High Isolation: 250 Vrms continuous isolation protects system from transients and ground loops.

  • Hot‑Swap & Plug‑and‑Play: Auto‑detected by NI software; hot‑swappable without downtime.

  • Robust Protection: Electronic fuses with auto‑reset safeguard against short circuits and overloads.

  • Fast Update Rate: 20 kHz all‑channel refresh for high‑speed logic.

  • Industrial Ruggedness: Wide temperature range, vibration tolerance, and safety certifications.

Applications

  • Control of solenoid valves, contactors, motor starters, and relay coils

  • Panel indicator lights, buzzers, and LED arrays

  • Driving NPN‑type solid‑state inputs on PLCs and I/O modules

  • Factory automation, conveyor systems, and process control discrete outputs

  • Legacy Compact FieldPoint system maintenance/expansion

Compatibility

  • Terminal Bases: cFP‑CB‑1 (36‑pin) or cFP‑CB‑3 (18‑pin, isothermal)

  • Backplanes: cFP‑BP‑x series

  • Controllers: All Compact FieldPoint network modules (e.g., cFP‑2000, cFP‑2010)


Get a Quote