The Foxboro RH923DG is a compact, DIN-rail mounted modular baseplate designed for the I/A Series and Evo DCS systems. It serves as a physical and electrical carrier for 200-series FBM I/O modules, providing redundant fieldbus connectivity (A/B), power distribution, and grounding for remote or local I/O racks. Engineered for ISA G3 harsh environments, it supports hot-swappable module installation and ensures reliable, interference-free communication between field devices and the control processor (FCP).
