Power over Ethernet (PoE) is a technology for wired Ethernet local area networks (LANs) that allows the electrical current necessary for the operation of each device to be carried by the data cables rather than by power cords.
The current enters the cable by means of a component called an injector.
What does PoE mean in slang?
POE. Point of Essence. showing only Slang/Internet Slang definitions (show all 68 definitions) Note: We have 119 other definitions for POE in our Acronym Attic.
What is PoE and why use it when is it commonly needed?
Because PoE allows you to use one cable for both power and data transmission, PoE saves you money on purchasing and running cable for networking equipment and VoIP phones.
What is PoE voltage?
POE treats each pair as a single conductor, and can use either the two data pairs or the two spare pairs to carry electrical current. Power over Ethernet is injected onto the cable at a voltage between 44 and 57 volts DC, and typically 48 volts is used.
Do I need a PoE switch?
To begin, you’ll need a compatible recipient device (powered devices e.g. IP cameras), a POE switch or router and an ethernet cable. However, there are cables that use all four pairs, like Gigabit Ethernet. Only two are usually needed because electricity flows through wires in a loop.