PCU5 module is digital to analog converter, changing the logical combination of five digital inputs on one analog voltage signal. Digital inputs connected to the GND.
PCU5I module is optically isolated digital to analog converter, changing the logical combination of five digital inputs on one analog voltage signal.
PCU6 is enhanced version of the URCA6 and the URCA6P. The module converts the logical combination of six digital inputs on one analog voltage signal. Digital inputs connected to the GND.