Beckhoff EK1521 is a 1-port EtherCAT fiber-optic junction designed as a topology extension module for EtherCAT networks. It provides a single optical link between EtherCAT devices, enabling long-distance connections with distances up to 20 km when using single-mode fiber. For wiring, SC/PC connectors are recommended for the EK1521 and EK1521-0010 configurations, and the module carries IP20 enclosure protection with CE, UL, and Ex approvals. This module integrates with Beckhoff's EtherCAT ecosystem (e.g., via EK1100/EL junctions) to extend networks or create fiber-topology links across plant floors or campuses.
