CU2016 Beckhoff
Wake Industrial LLC is not an authorized distributor of this product.
The Beckhoff CU2016 is part of the CU EtherCAT Junctions series and functions as an unmanaged switch with 16 RJ45 ports. It supports Ethernet interfaces at 10/100 Mbit/s, operates with 24 VDC supply voltage, and offers reverse polarity protection. The unit is designed for 35 mm DIN rail mounting and meets IP20 protection class and the EN 61000-6-2 / EN 61000-6-4 EMC immunity and emission standards.
Internal Product Review
The CU2016 is a Beckhoff EtherCAT junction with 16 RJ45 ports and an unmanaged switch design. Store-and-forward switching and 10/100 Mbit/s operation give this unit dependable data handling for distributed automation networks. IP20 protection and 35 mm DIN rail mounting make the CU2016 a very practical choice for clean control cabinet integration.
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Product Description:
The CU2016 Ethernet junction is produced by Beckhoff for the CU EtherCAT Junctions series. It serves as an industrial EtherCAT line splitter that lets a controller branch real-time fieldbus signals toward multiple machine segments, helping machine builders organize distributed I/O without extra switches. The device resides inside the control cabinet and supports standard twisted-pair cabling used in industrial Ethernet networks. By avoiding ring topologies, it can simplify diagnostics and make cabinet network paths easier to follow.
It is powered from a control voltage of 24 VDC and draws a typical current of 150 mA typical. Each port operates over the 10BASE-T/100BASE-TX physical layer with a selectable baud rate of 10/100 Mbit/s. Duplex negotiation permits operation in half- or full-duplex mode, and copper connectivity is provided through 16 RJ45 sockets. As an unmanaged switch, the unit adapts speed and duplex automatically. Port-status LEDs show link, activity, and 100 Mbit conditions for immediate network verification. Mechanical integration is provided by a 35 mm DIN rail clip, so the unit can be installed next to I/O terminals in compact control enclosures.
The housing and input circuitry support reliable operation in cabinet-mounted industrial environments. The housing carries IP20 protection, so it is suited to clean installation locations inside an enclosure. Packet processing follows the store-and-forward principle, allowing error checking before forwarding. Automatic parameter setting conforms to IEEE 802.3u, while the input circuitry is reverse-polarity protected to help prevent damage during installation. The unit meets EMC immunity and emission limits of EN 61000-6-2 / EN 61000-6-4 and withstands vibration and shock under EN 60068-2-6 / EN 60068-2-27. These standards support stable EtherCAT communication when the control cabinet is mounted on equipment that is exposed to movement or vibration.
