ABB NTCS-04 Circuit Board

ABB NTCS-04 Circuit Board is an I/O termination/control module designed for Bailey Controls’ NTCS data control system. As part of the NTCS-04 DCS module/board/rack family, this circuit board serves as a termination interface within the automation rack, linking field wiring to the system backplane. The part is listed under the ASEA BROWN BOVERI/ABB lineage and is described by distributors as an I/O termination control unit operating from 120/240 VDC. It is noted as discontinued by the manufacturer, yet used and surplus NTCS-04 boards continue to appear in the market from third‑party suppliers. This NTCS-04 board is intended to interoperate with other NTCS modules in a Bailey Controls DCS environment, providing a physical connection point between field devices and the data control system backplane.