Communications Port Module use with CTT01 for tuning and configuration of a single PCU (also part no YIMCPM01, PIMCPM01, NCPM01).
in the Bailey Net 90 and Infi 90 distributed control systems (DCS). It interfaces a Configuration and Tuning Terminal (CTT) or engineering workstation with a single Process Control Unit (PCU), allowing technicians to program, configure, and tune process controllers.