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 NTDI02 Digital I/O Termination Unit Introduction The ABB Bailey NTDI02 Digital I/O Termination Unit is a high-performance interface component designed for INFI 90 and Symphony distributed control systems (DCS) . It acts as a reliable termination and signal distribution point *Your Name: *Your Email: *Your Name: *Vdcode: Submit