The BECKHOFF KL1408 is a high-density digital input terminal designed for the Beckhoff Bus Terminal system. It provides eight channels for receiving binary control signals from the process level, such as from sensors, switches, or push-buttons. Operating at a nominal voltage of 24 V DC, it features a type 3 input filter according to EN 61131-2, ensuring robust performance in industrial environments. Each channel’s status is clearly indicated by an integrated LED, simplifying diagnostics and commissioning. The KL1408 transmits these signals with electrical isolation to the higher-level automation unit, making it a reliable and efficient component for data acquisition in a wide range of control applications.