DeltaV CTO SIS Smart Junction Boxes provide pre- designed, fully certified (CE, IECEx, ATEX, Class 1 Division 2, NEPSI, CCC) an off-the-shelf solution for faster project execution and reduced installation costs. DeltaV CTO SIS Smart Junction Boxes are factory tested products with DeltaV SIS CHARM I/O system and ready for installation in the field. DeltaV SIS Electronic Marshalling eliminates traditional I/O design tasks and allows field wiring to start long before control strategies are finalized. DeltaV CTO SIS Smart Junction Boxes are designed for ordinary locations, hazardous areas and harsh environments, from extreme temperatures to corrosive gases.