Siemon Power Over Ethernet Applications

With everything from phones to men’s razors now able to receive power from data cabling, what is the best method to deliver that power? As the IEEE 802.3af standard is currently written, there are two methods of providing power to a PoE device. The PSE or power sourcing equipment (the equipment providing power) can be either mid-span or end-span. Based on the standard, there are some clear and distinct differences between the two. Highlights of the IEEE 802.3af PoE standard are as follows: