The ABB 3BSE009514R1, designated PFSK160A, is a dedicated signal transmission board for ABB industrial measurement and control systems1688 It processes field measuring signals and completes high‑speed bidirectional data interaction between upper‑level controller and on‑site sensing units. Adopting industrial‑grade circuit layout, it is equipped with signal filtering and isolation circuits to suppress electromagnetic interference and voltage surge disturbance in heavy‑industry sites. It uses standard euro‑card rack‑mount installation for fast on‑site replacement to reduce unplanned downtime. Front‑panel LED indicators support real‑time status display and rapid fault diagnosis. Widely applied in metallurgical rolling mills, thermal power plants and pulp‑paper automation cabinets. As a key vulnerable spare part for legacy measurement‑control systems, each unit passes full‑function testing before shipment for overhaul and maintenance.