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Networking & Telecommunications vocabulary · Network Devices

PoE

Meaning in networking & telecommunications, with examples

/ˌpiː əʊ ˈiː/abbreviationCommon term

In networking & telecommunications, PoE means: Short for Power over Ethernet: a technology that sends electrical power and data over the same Ethernet cable, so devices such as access points, IP phones and cameras need no separate power supply.

In Turkish: Ethernet üzerinden güç, PoE

How it is used

Spelled out letter by letter. Engineers check the PoE budget of a switch (the total power it can supply), the PoE standard a device needs (802.3af, at or bt) and whether a port is actually delivering power. A switch that runs out of PoE budget will not power new devices.

Example sentences

  1. The new access points need more power than the old PoE switch can provide.

  2. Check whether port 6 is supplying PoE; the camera has no lights at all.

Common collocations

  • PoE switch
  • PoE budget
  • PoE injector
  • PoE port
  • PoE+
  • EthernetThe standard technology (IEEE 802.3) for wired local networks, which defines how devices send frames over copper or fibre cables at speeds from 10 Mbps up to hundreds of gigabits per second.
  • switchA device with many ports that connects computers, phones, printers and other equipment inside the same local network and forwards each frame only to the port where its destination is.
  • access pointA device, usually mounted on a ceiling or wall, that sends and receives Wi-Fi signals and connects wireless devices to the wired network.
  • patch cableA short cable with a connector at each end, used to connect devices to each other or to a patch panel, for example a switch port to a patch panel port.

More terms: Network Devices

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