Standard master unit. Screw terminal blocks. 8 digital inputs, 2 inputs for Start/Restart interlock and external device monitoring (EDM), 2 pairs OSSD safety outputs, 4 test outputs, 2 programmable digital signal outputs also usable as a stand-alone device, able to control any other expansion unit. Mosaic is a safety hub able to manage all safety functions of a machinery or a plant. Configurable and scalable. Allows cost reductions and minimal wiring.