The U-ONE universal encoder system from Johannes Hübner Giessen combines speed, position and overspeed detection in a single device. The system includes a universal basic unit that is connected to electronic function modules in the switchboard via fiber optic cables for EMC protection. The UOM 4L basic unit in a robust aluminum housing is designed for a maximum speed of up to 3000 rpm. The device is available in B5 design with flange and B35 design with flange and foot mounting. The up to ten function modules that are also part of the system can be arranged in any order and thus enable flexible configuration of the U-ONE system.