Keithley Instruments PIO-HV Overview
Keithley's PIO-HV is a 24-bit parallel interface that allows the control and monitoring of digital signals with voltages greater than standard 5-volt logic levels. It supports up to 50V, allowing you to connect your own arbitrary logic power supply, and it can drive very high currents. It also provides open-collector digital I/O. The board was designed to be used with IBM PC/XT/AT and compatible computers.
