CU2016 Beckhoff
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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.
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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.
Frequently Asked Questions about CU2016:
Q: How many RJ45 ports are provided on the CU2016 EtherCAT Junction?
A: The CU2016 features 16 RJ45 ports to connect multiple EtherCAT devices within a network.
Q: What is the baud rate supported by the CU2016 junction?
A: This device operates at 10/100 Mbit/s baud rate, enabling high-speed Ethernet communication.
Q: What duplex modes are available on the CU2016?
A: The CU2016 offers both half and full duplex operation, allowing flexible network configurations.
Q: What type of mounting does the CU2016 junction support?
A: Mounting is supported on a standard 35 mm DIN rail for convenient installation.
Q: What are the supply voltage and typical current consumption of the CU2016?
A: The CU2016 is powered by a 24 VDC supply and draws a typical current of 150 mA.
