Linear Technology Corporation introduces the LTC4265, an 802.3af/802.3at compliant Power over Ethernet (PoE) interface controller for high-power Powered Device (PD) applications needing up to 25.5W.

Power over Ethernet (PoE) is a widely used term that refers to any technology enabling an Ethernet device to receive and send power over the same cable as data. Below I’ve highlighted key information ...

I plan on deploying 6 Ruckus R850 AP and need a switch to power them. In order to get full power the R850 needs either DC power or a PoH/uPoE switch. The Full power consumes 31W max. If I get a Cisco ...

Christopher Gobok answers a reader question about PSE and PD IC's. Can they handle higher loads than the current IEEE 802.3 at PoE Spec? Christopher Gobok is a product marketing engineer for mixed ...

Power over Ethernet (PoE) is not rocket science, but it’s not plug-and-play magic either. This short primer walks through the basics with a few practical nudges for those curious to try it out. It’s a ...

Implementing PoE is made interesting by the fact that not every Ethernet device wants power; if you start dumping power onto any device that’s connected, you’re going to break things. The IEEE 802.3af ...