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. Emerson 12P0549X152 Discrete Input Module Functional Overview for Control Systems (Introduction) The Emerson 12P0549X152 Discrete Input Module is a digital signal interface designed to capture binary input signals from field devices and transmit them to a central control system. It *Your Name: *Your Email: *Your Name: *Vdcode: Submit