The Beckhoff CU2016 Ethernet Switch is a robust, high-port-density networking solution designed for industrial automation systems that require reliable and cost-effective Ethernet connectivity. Offering 16 RJ45 ports, the CU2016 supports communication speeds of 10/100 Mbit/s and integrates seamlessly into Ethernet-based automation environments.

The switch is unmanaged, which makes it easy to deploy without the need for configuration or specialised knowledge. Supporting all Ethernet protocols compliant with IEEE 802.3, the CU2016 works effortlessly with automation systems using EtherCAT, PROFINET, Modbus TCP/IP, and standard IT networking. Its store-and-forward switching mode ensures error-checked data transmission, maintaining reliable communication even under high network loads.

Each of the 16 ports supports 10BASE-T/100BASE-TX Ethernet connections with automatic detection of speed and duplex mode (half or full duplex). This auto-negotiation capability simplifies integration by automatically adapting to connected devices. Cable lengths of up to 100 m using twisted-pair Ethernet cabling are supported, enabling flexible installation in large-scale plants or machinery.

Diagnostics are a key strength of the CU2016. Each port is equipped with two integrated LEDs, providing immediate status information on activity, link state, and transmission speed (10 or 100 Mbit/s). These visual indicators simplify troubleshooting, allowing engineers to quickly identify and resolve network issues without external tools.

Designed for industrial reliability, the CU2016 operates from a 24 V DC power supply (18…30 V range) via a standard 3-pin connection (+, -, PE). With a typical current consumption of only 150 mA, the switch is energy efficient, reducing operational costs while maintaining stable performance. Its rugged design ensures long-term durability in environments subject to vibration, dust, or temperature fluctuations.

As part of Beckhoff’s infrastructure product line, the CU2016 is intended for scalable networking in machine automation, building automation, and process control. Its high port count makes it particularly suitable for applications where multiple devices must be connected within a single cabinet or decentralised system. Whether used to interconnect controllers, I/O modules, HMIs, or industrial PCs, the switch ensures dependable communication across the entire automation system.

In practice, the CU2016 is an excellent choice for EtherCAT-based automation systems, where its ability to handle standard Ethernet frames ensures smooth coexistence of real-time and non-real-time traffic. It is equally effective in mixed-protocol environments, serving as a central networking hub for diverse devices and systems.

In summary, the Beckhoff CU2016 Industrial Ethernet Switch combines simplicity, robustness, and high connectivity in one compact device. With 16 RJ45 ports, protocol independence, built-in diagnostics, and efficient 24 V DC operation, it provides engineers with a reliable and scalable networking backbone for modern industrial automation systems.