Bailey Controls NTDO01 Digital Output Termination. Also part number PNTDO01, YNTDO01.
The Bailey Controls NTDO01 is a Digital Output Termination Unit used in the ABB Bailey Network 90 and Infi 90 distributed control systems (DCS). It acts as a passive interface module that provides field-wiring termination between Digital Slave Modules (like the NDSM05) and AC/DC field devices.