What is Power over Ethernet?
Power over Ethernet (PoE) is an exciting and relatively new technology that allows networked devices to obtain power as well as data from existing Ethernet cabling. It is used to power VoIP phones, webcams and other devices such as Inova’s OnTime digital clocks, analog clocks, and OnTrack X Series digital displays. Power over Ethernet is a network standard, called IEE802.3af, approved by the IEEE Standards Board on June 12, 2003. It extends existing Ethernet standards, and offers the first truly international standard for power distribution. Delivering both data and power over one set of wires simplifies installation, saves space and eliminates the need for electrical outlets. Additionally, the option of centralized UPS backup allows PoE devices to continue running even in the event of a power failure.
Power over Ethernet (PoE) is an exciting and relatively new technology that allows networked devices to obtain power as well as data from existing Ethernet cabling. It is used to power VoIP phones, webcams and other devices such as Inova’s OnTime digital clocks and OnTrack X Series digital displays. Power over Ethernet is a network standard, called IEE802.3af, approved by the IEEE Standards Board on June 12, 2003. It extends existing Ethernet standards, and offers the first truly international standard for power distribution. Delivering both data and power over one set of wires simplifies installation, saves space and eliminates the need for electrical outlets. Additionally, the option of centralized UPS backup allows PoE devices to continue running even in the event of a power failure.
A version of electrical power over network connections has been utilized in the telecommunications industry for many years. It’s what allows your telephone service to continue when you experience power outages. So what is so exciting and unique about Power over Ethernet? Power over Ethernet extends the reliability that the telecommunications industry has enjoyed for years and enables lifeline service for IP telephones. It has the ability to connect and power wireless access points and web-based security cameras. Even more exciting, PoE opens the door to a new generation of networked appliances. Because there is no need for the PoE appliance (called a “Powered Device” or PD in the standard) to be anywhere near a wall socket, the PoE vendors foresee a plethora of innovative applications, from building access systems and retail point-of-information systems to “smart” signs and vending and gaming machines.
