Beckhoff EK1122 – Overview The Beckhoff EK1122 is a compact EtherCAT junction module that provides two RJ45 ports for connecting EtherCAT segments, enabling star or tree topologies in automation systems. It supports cable runs up to 100 m per segment and is powered directly from the EtherCAT E-bus. Ideal for flexible system architectures, the EK1122 allows branching within EtherCAT I/O stations without additional configuration. Key Features Two RJ45 EtherCAT ports for branching or segment extension Supports star and tree topologies in EtherCAT networks Maximum segment length: up to 100 m (100BASE-TX) Data transfer rate: 100 Mbit/s Powered from the E-bus (no separate power supply) Ultra low internal delay (~1 µs) for high-speed communication Compact DIN-rail mountable housing (IP20) Robust industrial design with wide temperature range Technical Specifications Part Numbers: – EK1122 – EK 1122 Bus Interface: 2 × RJ45 ports Protocol: EtherCAT Max Cable Length per Segment: 100 m Data Rate: 100 Mbit/s Delay: Approx. 1 µs Power Supply: From EtherCAT E-bus Current Consumption: Typical 220 mA Operating Temperature: –25 °C … +60 °C Storage Temperature: –40 °C … +85 °C Protection Rating: IP20 Mounting: 35 mm DIN-rail Manufacturer: Beckhoff Automation Weight: Approx. 75 g Dimensions (W × H × D): Approx. 24 mm × 100 mm × 52 mm Applications Extending EtherCAT stations with star or tree topology Branching EtherCAT networks in modular automation systems Panels requiring flexible I/O distribution and flexible cabling Industrial installations where dynamic EtherCAT segmenting is needed Why Choose Beckhoff EK1122 Enables flexible network topologies beyond line topology Compact, fast, and efficient junction solution for EtherCAT No configuration required — plug-and-play branch connection Reliable performance in harsh industrial environments Order Now The Beckhoff EK1122 2-Port EtherCAT Junction is available for order and ships worldwide.
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