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Networking

Power over Ethernet (PoE)

Powering cameras, access points and other devices over the Ethernet cable, so one cable carries both power and data.

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What it is

PoE lets a switch, injector or router supply power over standard Ethernet. PoE (802.3af) supplies up to about 15 W per port and PoE+ (802.3at) up to about 30 W, enough for most cameras and access points. Some routers can also be powered by PoE, or supply it to a camera.

Where it fits

  • IP cameras on poles and walls
  • Wi-Fi access points on ceilings and outdoors
  • Outdoor routers fed from inside the building

What to look for

  • Total PoE budget against the devices
  • PoE or PoE+ per port
  • Cable length (up to 100 m for Ethernet)

Browse PoE switches and 4G routers with PoE out, or read the 4G PoE router explainer.

Part of our networking hub. You will find the products we sell for this below, along with our explainers. If you are planning more than a handful of sites, talk to us before you buy: getting the router, antenna and SIM right first time saves site visits later.

Talk to an M2M and IoT connectivity specialist. Not sure which technology fits your project? Tell us what you need to connect and where, and our UK team will recommend the router, antenna and SIM, with pre-sales advice, after-sales technical support and a range of configuration options.

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Questions

Can a router power a camera?

Yes, routers with PoE out (PSE) can power a camera directly, such as the Proroute H685T PoE.

In the glossary: PoE

Guides and case studies

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