National Instruments AT-DIO-32F Digital I/O board

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National Instruments · PC AT bus

AT-DIO-32F

The National Instruments AT-DIO-32F is a 32-channel AT-bus digital I/O board with 5 V TTL/CMOS signaling and handshaking. It belongs to the Traditional NI-DAQ legacy software ecosystem rather than NI-DAQmx.

ManufacturerNational Instruments

ModelAT-DIO-32F

Product TypeDigital I/O board

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Digital I/O32 channels

Signal standard5 V TTL/CMOS

Host interfacePC AT bus

Data transferDigital handshaking supported

Driver ecosystemTraditional NI-DAQ; not NI-DAQmx

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Overview

Product overview

Key product information and technical features.

The AT-DIO-32F provides parallel digital input and output for PC AT-bus systems. NI identifies it as a high-speed digital I/O and handshaking device with 32 channels and 5 V TTL/CMOS signaling.

NI's archived programming reference describes four primary 8-bit ports, configurable for reading or writing, with handshaking modes and DMA transfer support. Integration requires attention to the legacy host and software environment: NI lists the board as supported only by Traditional NI-DAQ, not NI-DAQmx.

32-channel digital I/O using 5 V TTL/CMOS signaling.
Four primary 8-bit ports numbered 0 through 3, supporting read or write operation.
Programmable handshaking modes for primary digital ports.
DMA support for digital transfer groups, including dual-channel DMA for groups containing port 0.

Verified specifications

Technical data

Verified product specifications.

Primary digital I/O channels	32 channels
Digital signal standard	5 V TTL/CMOS
Host bus	PC AT bus
Primary port organization	Four 8-bit ports, numbered 0–3
Primary port direction	Read or write
Driver support	Traditional NI-DAQ (Legacy); not supported by NI-DAQmx

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National Instruments

Manufacturer

PC AT bus

Host platform

AT-DIO-32F

32-channel digital I/O and handshaking board

Software ecosystem

Traditional NI-DAQ (Legacy)

Confirm the host bus and exact legacy driver/operating-system combination before integration; NI-DAQmx does not support this board.

Manuals & software

Technical resources

Manuals, software and technical resources for this model.

NI-DAQmx 8.1 Readme — Traditional NI-DAQ Device RestrictionsDriver Readme · download.ni.com

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Archived LabVIEW Data Acquisition Basics ManualSoftware And Hardware Support Reference · download.ni.com

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Archived LabVIEW Function and VI Reference ManualProgramming And Hardware Capabilities Reference · download.ni.com

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Legacy Digital I/O Programming and Hardware CapabilitiesTechnical resource

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FAQ

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Product-specific answers based on available technical information.

What is the AT-DIO-32F?

It is a National Instruments PC AT-bus digital I/O board with 32 channels, 5 V TTL/CMOS signaling, and handshaking support.

Does the AT-DIO-32F work with NI-DAQmx?

No. NI lists the AT-DIO-32F among devices supported only by Traditional NI-DAQ (Legacy), not NI-DAQmx. Check the specific legacy driver release against the intended operating system.

How are the primary digital channels organized?

NI's archived hardware capabilities table lists four 8-bit primary ports, numbered 0 through 3, with read or write operation and handshaking modes.