Delivered ready to install, wire, and configure, pre-engineered OptiSIS Solution is designed for safety instrumented system applications of 50 or 100 I/O points, including emergency shutdown systems, burner-management systems, and high-integrity pressure protection systems. Flexible inputs and outputs help confirm that system accommodates varying mix of digital and analog I/O types. Simplex I/O and fault-tolerant (dual) I/O versions are available to address different redundancy needs.