Cube20 is a fieldbus I/O station IP20 with modular expandability designed for the requirements of modern wiring in control cabinets. It can be operated combined with Cube67. This allows an even more economic use of existing resources such as Cube67 bus nodes. Cube20 is as high channel density device that was designed for space reduction and maintenance free I/O connections. Cube20 offers analog, digital, and serial transmission signals for measuring temperature.