Wired IO Series

I/O Expansion Modules

The Wired IO Series offers a reliable, safe, and easy way to meet the growing measurement and control demands of your automation system. FreeWave’s I/O expansion products build on existing communications systems and controller infrastructure to extend the useful life of your automation systems.

All FreeWave Wired IO expansion modules snap easily on to a radio base to provide 188 I/O points over a single wireless link. The Serial Base features a wired serial interface to provide up to 192 I/O points to an existing PLC, RTU, or other device with serial communications.

How to Buy

wired io series product line

Key Features

  • Modular

    Supports up to 15 expansion modules to a serial base or radio base

  • Safe for Hazardous Locations

    Class I, Division 2 certified

  • Low Latency

    Access times as fast as 11 milliseconds to all available expansion modules

  • Reliable

    Fail-safe settings are user-configurable for DO and AO channels

  • High Accuracy

    Maximum reading error of 0.10% of AI channels across entire operating temperature

  • Low Power

    Ideal for solar, battery, and DC applications

  • Industrial Grade

    Operating in temperatures from -40°C to +75°C

  • Configurable

    Universal channels configurable as digital input, digital output, analog input, analog output or sensor power



IO Expansion User Manual



Serial Base, 2 Digital Inputs, 2 Digital Outputs

Download Datasheet


Serial Base, Digital Outputs

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Expansion Module, 4 Digital Inputs

Download Datasheet


Expansion Module, 2 Digital Inputs, 2 Digital Outputs

Download Datasheet


Expansion Module, 4 Digital Outputs

Download Datasheet


Is the Wired IO Series right for my application?

We’ll help you decide. See an example of these modules in use, or tell us your operational requirements so that we can recommend your best-fit solution.

Wired IO Series in Action Speak to FreeWave Today