NTCU01 | ABB Bailey Termination Unit

Plant Loop to Computer Interface Termination UnitThe Digital I/O Termination Unit (NTDI01) is an interface forINFI 90 Process Management System I/O signals. These signals are used to control and monitor processes. Terminationunits provide the physical connection points for process fieldwiring, and configure the system I/O signals.This instruction explains the purpose, features and specifications of the Digital I/O Termination Unit (TDI). It also detailssetup, installation, maintenance and replacement procedures.Figure 1-1 illustrates an INFI 90 application using a TDI fortermination.