Abstract: A computerized mat cutter machine system includes a mat table having a cutter surface, at least one clamp moveable between a clamped position to secure a matboard to the mat table and a non-clamped position, a cutter head for performing at least one of cutting and finishing a design in the matboard, and a clamp controller bus for communicatively coupling a board controller to a clamp controller of the at least one clamp. The clamp controller bus includes a first bus configured as a dual ended serial differential bus that allows signals to flow from the board controller to the clamp controller, and a second bus configured as an analog bus that allows signals to flow from the clamp controller to the board controller.