Safety interface module — OSSD signal conditioning
The 2TLA020051R5400: This ABB ADAM OSSD module sits between safety light curtains or OSSD-output sensors and the safety PLC or contactor. It conditions the two-channel OSSD signals, providing a clean interface for the safety circuit. In a panel, it mounts on DIN rail and connects to the safety loop — no external relay needed for the OSSD handshake.