The DIO‑3232LX‑USB is a USB‑based digital input/output (I/O) module that provides extensive digital signal interfacing for PCs and control systems. It features 32 optocoupler‑isolated digital input channels and 32 optocoupler‑isolated open‑collector digital output channels capable of operating at 12–24 VDC, enabling reliable interfacing with industrial sensors, actuators, and logic signals. The unit connects via USB 2.0/1.1 for communication with a host PC and supports software filtering to reduce signal errors caused by noise or contact chatter.
Designed for flexible integration, the module supports Windows and Linux device drivers and includes surge and overcurrent protection circuitry on its outputs for added reliability. Its connector layout is compatible with related PCI and PCIe digital I/O boards from the same family, which eases migration of existing applications to USB‑connected systems.
