What is PoE? Power over Ethernet Explained | Black Box®

There are a lot of misconceptions and myths surrounding Power over Ethernet (PoE). Learn what PoE is - and is not - and clarify how it can be an important part of your network.

PoE is standard for sending data and power over Ethernet cable to low-wattage devices, such as cameras, wireless access points, VoIP phones, and more. The greatest benefit PoE gives you is the ability to power devices in remote, hard-to-reach, and non-powered locations—without worrying about the cost or hassle of running new AC power lines. And it's a lot easier to install an Ethernet line than electrical wiring.

[philnorthcott]

The presenter makes a wrong implication at minute 1:15.  PoE doesn't use 60Hz AC.   It's DC.

[bin]

The music reminds me of a Front Mission load out screen.

[mgedier]

Hi nice video, but I have a question, It's true that AC Power operates in 60Hz while data operates in higher frequencies but, PoE is not just DC Power?? All the web pages that I have visited sell PoE products with DC output Voltage. Big confusion here!

[gedeeka]

how long is a PoE cable is too long to powering IP CCTV camera? i want to install IP Camera. some say 50meters, other 100Meters.
many thanks...

[dougbalentine]

I have 24 awg wire with 4 strands and not cat 5 going to my future AP location. Can I punch this wire into a keystone to power the AP with the power injector?

[astudillojr]

hello, thanks for your video. I've got a question, I'm installing 24 cameras on a nonPOE switch so I'm planning on using cat6 and a poe injector midspan, for that, I need to use a power supply but I don´t know which one to chose. the cameras are dc 12v and they consume 600watts. the distances are around the 260 and 290 ft. could you give me some advises?

[CesarPeron]

The presenter it's Edgar the Bug (MIB)

[Affe]

Wy is all the connectors on a Switch use shielded contacts?

I think that you have to use a Shielded plug to this unit?
Ore can you use a Cat5 and Cat5E UTP to the product today?
And if you use a copper cabel you have to use a product for the Ligtning problems.

I hope all users today have a Fiber cable!
This is what we have to use if the connectors will work in the future.
And the SPEED with fiber is the future!

[mathurash]

I was curious why an ethernet cable is #24.  Can I use a #18 4 twisted pair (individually and overall shielded) cable and still get away without any communication issues?

[UncleFjester]

In my house I put one end into my new camera, where do I put the other end?
Thats all I'm looking for

[jojojawjaw]

You saved my life! :D
Thanks .. awesome video ..

[carlosjenkins]

This video is technically incorrect. Confusing power sent as being AC, which is not, is DC.