Power Over Ethernet (PoE)
Power over Ethernet (PoE) is a collective of standards that describe how to pass power together with the data over twisted pair ethernet cabling. This disruptive technology allows power sourcing equipment (PSE) to safely transfer power to the application, called a powered device (PD).
Interoperability between various equipment is guaranteed through the IEEE standard certifications. ON Semiconductor supplies Powered Device interface and power conversion IC’s, adhering to the IEEE 802.3af, IEEE 802.3at and IEEE 802.3bt standards.
In PoE systems, power transfer is managed by a handshaking process between the Power Sourcing Equipment (PSE) and Powered Device (PD). During this process, the PSE detects if the PD is PoE capable and determines the power requirements based on defined device types and classes.
PoE Applications include Connected Lighting, USB Type C, Security Cameras, IP Speakers, Wireless Access Points, IoT Gateways, POS Terminals, Digital Signage, Programmable Logic Controller, Satellite Data Networks, Pico-base stations, Video and VOIP Telephones