Certified to the highest safety level – SIL4 – by TÜV SÜD, one of the most trusted certification bodies worldwide, the ControlSafe™ Expansion Box Platform significantly enhances the growing Artesyn ControlSafe product portfolio. By leveraging the same safety architecture and technologies as the ControlSafe Platform, the cornerstone platform in the portfolio, the ControlSafe Expansion Box Platform is a highly integrated and cost-effective solution mainly targeting wayside applications such as Computer Based Interlocking (CBI) with its design of a larger chassis housing larger I/O modules.