MTL Instruments today releases the 9180 Series redundant fieldbus power system featuring N+1 Redundancy, on-line diagnostics and modular flexibility. The fieldbus power system is designed to provide redundant power for eight FOUNDATION fieldbus H1 segments for use with all fieldbus systems. It is optimised for use in general purpose and hazardous area High Energy Trunk architectures which, with the appropriate wiring components, supports fieldbus devices using all hazardous area protection techniques.