If you have questions about our products, Fill out the form below and we will answer any questions you have. Tips: Fields marked with*are required. Honeywell FC-DCOM-232/485 Communication Interface Module Introduction The Honeywell FC-DCOM-232/485 Communication Interface Module is designed to provide stable and deterministic serial communication between field devices and Honeywell control systems. Supporting both RS-232 and RS-485 standards, *Your Name: *Your Email: *Your Name: *Vdcode: Submit