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Power over Ethernet

Power over Ethernet

(also PoE)

Power over Ethernet definition

Power over Ethernet (PoE) is a technology that includes multiple standards or ad hoc systems. Power over Ethernet passes electric power to powered devices, like VoIP devices, IP cameras, and wireless access points. Regular Ethernet cables can also be plugged into power over Ethernet, and by being plugged in, they can inject power into networks. Power over Ethernet uses between 44 and 57 volts DC, meaning that it enables efficient power transfer along the Ethernet cable. And even though this is a relatively high voltage, it is still deemed safe.

See also: VoIP, mobile ad hoc network

Power over Ethernet devices

  • VoIP phones. A VoIP phone is a piece of software that enables you to make calls via an internet connection instead of a traditional phone line, like WhatsApp and Skype. In addition, you can use VoIP phones to spoof numbers and make it seem as though you’re calling from another country.
  • IP cameras. An IP camera is a digital camera that receives data and sends photos through an IP network. IP cameras don’t need Wi-Fi to function and are usually used for surveillance.
  • ATMs. An ATM (automated teller machine) is a physical machine that people use to withdraw money from their debit or credit cards. In addition to withdrawing money, you can also deposit money into your account and check your balance through it.
  • Wireless access point. A WAP (wireless access point) is a gadget that can create a WLAN (wireless local area network). It allows intelligent devices to connect to Wi-Fi. In other words, it’s the device you have at home that provides you with Wi-Fi.

Further reading

Ultimate digital security