This range of Digital I/O Modules are suitable for operating external devices, or for interfacing with external logic. Two choices of output driver are available: TTL for interacting with external logic and Open Collector Transistor for operating external devices with voltages to 50V DC and currents to 500mA.
The versions that incorporate a breadboard area allow the user to construct their own circuits for applications where a standard module is not available.
Optically isolated versions are intended for input-output functions in electrically noisy environments. All inputs and outputs share a common ground and have an isolation barrier of 500V DC. Power for the isolated input/output circuit can be supplied by the user or supplied by an optional on-board DC-DC converter.

Versions of I/O module are available with programmable input threshold which allows the user to set the voltage of the high and low states of incoming signals. Additionally, they have output channels that can be used as high-side drivers for sourcing current or low-side drivers for sinking current.
Switch Simulator Modules are designed for automotive test applications. They can simulate contaminated contacts or current leakage conditions enabling the correct operation of I/O devices to be tested.
All the connectors used by these modules are supported by a comprehensive range of cable and connector accessories.

For a comparison of our digital I/O modules suited for switching large external loads such as relays see our wiki information here.

Click on the module order codes below to display more information for a particular model as well as links to data sheets and manuals.

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