The DUPIN Terminal Board series, encompassing models SB-202A, SB-204A, and SB-205A, provides a robust and efficient solution for industrial control signal interfacing and conditioning. Engineered on a durable green printed circuit board (PCB), these interface modules are populated with high-quality surface-mount integrated circuits, resistors, and capacitors to ensure precise signal transmission in demanding automation environments. Each board is equipped with a high-density SCSI-style male connector and a secure terminal block interface, designed to streamline complex wiring processes and establish reliable connections between PLCs, CNC controllers, and field devices.