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 NTAI04 Analog Input Terminal Unit Introduction & Technical Overview The ABB Bailey NTAI04 Analog Input Terminal Unit is an industrial-grade signal termination interface used in INFI 90 / Net 90 distributed control systems. It is designed to receive and organize analog input *Your Name: *Your Email: *Your Name: *Vdcode: Submit