Beckhoff EK1122 EtherCAT Coupler

Beckhoff EK1122

EtherCAT Coupler (2‑Port Junction)

Specifications

• Ports: 2×RJ45 (100BASE‑TX)Beckhoff
• Data Rate: 100 Mbit/s, full‑duplexBeckhoff
• Protocol: EtherCAT (IEC 61158)Beckhoff
• Topology: Line, star, tree; supports Hot Connect
• Distance: Up to 100 m between stations (Cat.5e shielded)Beckhoff
• Power Supply: E‑bus (from terminal segment)Beckhoff
• Current Draw: ~220 mABeckhoff
• LEDs: Run, Link/Activity (per port)
• Mounting: 35 mm DIN rail (EN 60715)
• Protection: IP20
• Temperature: −25°C to +60°C (operating)Beckhoff
• Certifications: CE, UL, CCC, ATEX, IECExBeckhoff
• Weight: ~65 gBeckhoff

Key Features

• Star Topology Enablement: Inserts anywhere in EtherCAT terminal strip to create star junctions
• Hot Connect: Add/remove segments during operation without downtime
• Low Latency: ~1 µs forwarding delay, real‑time performanceBeckhoff
• Modular Hub: Multiple EK1122 build a scalable star hub
• Wide Compatibility: Works with all Beckhoff EtherCAT I/O and controllers

Applications

• EtherCAT Network Expansion: Convert line to star/tree topologies
• Machine & Factory Automation: CNC, robotics, process control
• Distributed I/O Systems: Decentralize I/O with short cable runs
• Redundant Networks: Build resilient, segmented EtherCAT systems