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. ABB 70BK03C-E HESG447440R0001 Bus Coupling Module Introduction Seamless Bus Integration for ABB DCS Systems The ABB 70BK03C-E HESG447440R0001 Bus Coupling Module is designed to connect distributed I/O modules to the ABB DCS backbone, providing reliable communication between field devices a *Your Name: *Your Email: *Your Name: *Vdcode: Submit