Foxboro FBM218 RH922VW Communication Redundant Output Interface ModuleDescription Foxboro FBM218 RH922VW is a redundant output interface module that provides isolated analog and HART communication channels. It ensures continuous, faulttolerant operation in distributed control systems (DCS), supporting both analog and digital communication for field devices. Specifications Model: FBM218 RH922VW Type: HART Communication Redundant Output Interface Module Output channels: 8 isolated channels Signal type: 420 mA analog