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Product short description:
  • 48 bidirectional input/output channels
  • Digital I/O
  • Wide temperature range
  • PCIe Bus interface

The AP471 provides 48 general-purpose, bidirectional I/O points to economically monitor and control a large quantity of digital devices.

Click here to watch a short video highlighting the features of the Acromag AP471.

AP471: TTL Level Digital I/O Module Description

The AP471 TTL level digital AcroPack I/O modules provide 48 general-purpose, bidirectional I/O points to economically monitor and control a large quantity of digital devices.

Each channel has interrupt capability for detecting low-to-high or high-to-low transitions. Change- of-state interrupts are supported using paired channels. Debounce eliminates interrupts from noise and switching transients for error-free edge detection.

AP471 outputs are full-featured. They provide closed-loop readback status monitoring. TTL level thresholds and 15mA sink capability allow a direct interface to standard relay racks. For safety, outputs go to a failsafe state upon powerup/ reset without any instantaneous toggling to prevent false alarms.

Designed for COTS applications these TTL level digital I/O modules deliver high-density, high reliability, and high-performance at a low cost. AcroPack modules are RoHS compliant and ideal for military, defense, automation, aerospace, scientific, and development labs industries.

The AP471 module is 70mm long, this is 19.05mm longer than the full length mini PCIe card at 50.95mm. The board’s width is the same as mPCIe board of 30mm and they use the same mPCIe standard board hold down standoff and screw keep out areas.

A down facing 100 pin Samtec connector will mate with the carrier card. Fifty of these signals are available as field I/O signals. The AP471 maintains the same functionality of the existing Industry Pack modules providing a smooth transition to the AcroPack I/O modules.

Learn more about the AcroPack Series and view all the models >

AP471: TTL Level Digital I/O Benefits & Features

  • PCI Express Generation 1 interface
  • 48 bidirectional input/output channels
  • Mix and match countless I/O combinations in a single slot.
  • Sample software and diagnostics
  • TTL-compatible inputs
  • CMOS-compatible open-drain outputs
  • Interrupt support for each channel
  • Input debounce
  • Electronic overvoltage protection on individual channels
  • Open drain outputs
  • Output readback registers – Output readback capability eliminates the need for additional input channels to verify the output channel state
  • Output channels do not “glitch” after a power-up/reset to eliminate false alarms
  • Solid-down connector I/O interface
  • Wide temperature range
  • VPX and PCIe carriers
  • Linux®, Windows®, and VxWorks® support

Learn more about the AcroPack Series and view all the models >

APSW-API-LNX (Log in to download the file)
APSW-API: I/O Functions Routines Information Page (Log in to download the file)
  • Compare

    AP-CC-01: Conduction-Cool Kit

    • Required for conduction-cooled applications using an AcroPack
    Select options
  • Compare

    APSW-API: I/O Function Routines for VxWorks, Windows, Linux

    • Programming interface with function routines for AcroPack modules/carriers.
    • Customizable for other operating systems.
    Select options

Additional information

Weight 0.8 oz
Dimensions 3.25 × 1.25 × 1 in
Part Number

AP471E-LF: TTL digital I/O, 48 bidirectional channels

Product Series

AcroPack Series

  • Description

    AP471: TTL Level Digital I/O Module Description

    The AP471 TTL level digital AcroPack I/O modules provide 48 general-purpose, bidirectional I/O points to economically monitor and control a large quantity of digital devices.

    Each channel has interrupt capability for detecting low-to-high or high-to-low transitions. Change- of-state interrupts are supported using paired channels. Debounce eliminates interrupts from noise and switching transients for error-free edge detection.

    AP471 outputs are full-featured. They provide closed-loop readback status monitoring. TTL level thresholds and 15mA sink capability allow a direct interface to standard relay racks. For safety, outputs go to a failsafe state upon powerup/ reset without any instantaneous toggling to prevent false alarms.

    Designed for COTS applications these TTL level digital I/O modules deliver high-density, high reliability, and high-performance at a low cost. AcroPack modules are RoHS compliant and ideal for military, defense, automation, aerospace, scientific, and development labs industries.

    The AP471 module is 70mm long, this is 19.05mm longer than the full length mini PCIe card at 50.95mm. The board’s width is the same as mPCIe board of 30mm and they use the same mPCIe standard board hold down standoff and screw keep out areas.

    A down facing 100 pin Samtec connector will mate with the carrier card. Fifty of these signals are available as field I/O signals. The AP471 maintains the same functionality of the existing Industry Pack modules providing a smooth transition to the AcroPack I/O modules.

    Learn more about the AcroPack Series and view all the models >

    AP471: TTL Level Digital I/O Benefits & Features

    • PCI Express Generation 1 interface
    • 48 bidirectional input/output channels
    • Mix and match countless I/O combinations in a single slot.
    • Sample software and diagnostics
    • TTL-compatible inputs
    • CMOS-compatible open-drain outputs
    • Interrupt support for each channel
    • Input debounce
    • Electronic overvoltage protection on individual channels
    • Open drain outputs
    • Output readback registers – Output readback capability eliminates the need for additional input channels to verify the output channel state
    • Output channels do not “glitch” after a power-up/reset to eliminate false alarms
    • Solid-down connector I/O interface
    • Wide temperature range
    • VPX and PCIe carriers
    • Linux®, Windows®, and VxWorks® support

    Learn more about the AcroPack Series and view all the models >

  • Specs & Data Sheets

  • Software

    APSW-API-LNX (Log in to download the file)
    APSW-API: I/O Functions Routines Information Page (Log in to download the file)
  • Accessories

    • Compare

      AP-CC-01: Conduction-Cool Kit

      • Required for conduction-cooled applications using an AcroPack
      Select options
    • Compare

      APSW-API: I/O Function Routines for VxWorks, Windows, Linux

      • Programming interface with function routines for AcroPack modules/carriers.
      • Customizable for other operating systems.
      Select options
  • Additional information

    Additional information

    Weight 0.8 oz
    Dimensions 3.25 × 1.25 × 1 in
    Part Number

    AP471E-LF: TTL digital I/O, 48 bidirectional channels

    Product Series

    AcroPack Series