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Würth Elektronik presents its reference design for PoE adapter
Waldenburg (Germany), October 5, 2023 – Würth Elektronik is proud to present its RD022 reference design “GB-PoE+ Ethernet USB adapter,” freely available at www.we-online.de/RD022. Devices networked via Ethernet usually depend on a separate power supply, however, if these terminal devices get by with low power consumption, then Power over Ethernet (PoE) is an alternative where data transmission and power supply are achieved via a network cable.
Devices with low power consumption, like IP cameras, VoIP phones, WiFi routers, network switches, LED lighting or access systems, are suitable for power supply through the Ethernet line. Würth Elektronik’s new RD022 reference design, which can provide up to 25W of power, shows how this can work while still maintaining EMC compliance. The ‘GB-PoE+ Ethernet USB adapter’ is based on the reference design of a 1 Gbps Ethernet USB adapter without PoE functionality, as described in detail under RD016 (www.we-online.de/RD016).
The ‘GB-PoE+ Ethernet USB Adapter provides three interfaces: a USB Type-C interface (USB 3.1), an RJ45 1 Gbps Ethernet interface with integrated PoE functionality, and a connection for a DC/DC converter with an adjustable output voltage of 6V to 18V and a maximum output power of 25W. The board makes it easier for customers to get started with PoE technology. The reference design familiarizes users with the technology, signals, interface structure, power-up and PoE detection of a Gigabit PoE interface. It provides the hardware design for Power Sourcing Equipment (PSE) and the Powered Device (PD) and explains the conception and construction of the adapter board: current flow, USB controller and interface, Ethernet interface as well as power supply (PoE). Special importance placed on the EMC-compliant design highlights its significance.
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Würth Elektronik EMV & Inductive Solutions
Sarah Hurst
Phone: +49 7942 945-5186
E-mail: sarah.hurst@we-online.com
Würth Elektronik Circuit Board Technology
Melanie Wöhrle
Phone: +49 7940 946-5932
E-mail: melanie.woehrle@we-online.com
Würth Elektronik Intelligent Power & Control Systems
Sandra Herter
Phone: +49 7940 9810-1503
E-mail: sandra.herter@we-online.com
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