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 Bailey IEMMU21 Module Mounting Unit Product Overview The ABB Bailey IEMMU21 Module Mounting Unit is a rugged industrial chassis designed to securely house and interconnect automation modules used in ABB Bailey Infi 90 Distributed Control Systems (DCS) . Acting as both a physi *Your Name: *Your Email: *Your Name: *Vdcode: Submit