Power over Ethernet (PoE) - Explained

Power over Ethernet (PoE) is a technology that delivers DC power to networking devices such as IP phones, security cameras, and wireless access points, over the copper wires in an Ethernet cable, which eliminates the need for a separate power cable.
#PoE

[PowerCertAnimatedVideos]

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[DaikonDad]

This channel continues to be a pillar of quality, free education in a sea of people looking to improve themselves and learn. Thank you for what you do 🎉💚

[gwgux]

As a network engineer, I can confirm everything in this video is correct. They are well researched. I would only add that if you're looking to buy a PoE injector, that you carefully read what the product is and what standards it follows and look into if it's active or passive. Just like how different switches have different capabilities, so too will PoE injectors.

Also be aware that PoE splitters are a thing too and can often look like PoE injectors so carefully read the product labels and specs when buying. They don't add power to an Ethernet connection, they only split the power already on the line up to be able to power more devices. I personally never saw a need for PoE splitters in 20+ years of working on networks and if any time I needed more PoE ports, I would just put in another switch or replace existing switches with bigger switches, but since PoE splitters exist, it's something to know about so you don't buy the wrong thing.

[phil]

You are doing a fantastic job. For some of us transitioning into IT from a non IT background, your presentation makes it easy to digest. I literally watch your videos ceremoniously lol. Thank you.

[ozzie_goat]

Man, you are a PowerPoint wizard with these animations

[JerseyJeff]

I've learned more from this channel for free(Other than paying to be a channel member for the past year) than I have for the $5, 000 I spent to get an I.T. support degree from a local college. Kudos to you for making I.T. enjoyable and easy to learn.

[superbaggio]

You are the only one that when explain something ... My brain doesn't explode from too many complicated explanation ...
Well done sir💪🏾

[DucatiGTS]

You literally have the BEST no nonsense, right to the point videos I have ever seen. Your method of explaining things is awesome! You do not over-explain it, you just lay things out in a very solid common sense way. Thank you! You've truly helped me grow in knowledge!

[freedomfighter]

This channel has been helping me when I was in college and now working in IT.

[MikeKranidis]

Fantastic video as always! Only one misconception exist: in GigaBit network, all 4 pairs are used. This is not mentioned in the video leaving the audience with the impression that only 4 wires are used in Ethernet connection.

[jeremystone]

As a programmer who wants to understand the lingo of my network engineer, these videos are invaluable. Thank you!

[jeevans]

IIT Hyderabad recently shifted to these Cisco PoE wifi access points. I have figured it out 1 month back, now this video clarified everything.

[robgauthier]

I just want to thank you for your channel.
1) you got a good clear voice.
2)thank you for no music.
3)easy to follow and understand.

I do have a request that I would like to ask you. Could you please explain UID for cameras? Do all IP cameras, newer ones, have a UID number?
I have a program call P2P client v6.5.6.4 that works Great. The cameras I have are called Boavision. What I like about them is that they are UID type and that work over the internet without port forwarding, all i got to do is add the UID number in the program under setup and the username and password to the camera and give the camera a name. The camera could be in Alaska or Michigan it don't matter as long as it has a UID number.

[Mister]

Great video! I've been working with PoE technology since its emergence and it's rare to find such a comprehensive and concise explanation. I particularly like that you touched on passive PoE devices. Though old and rare, they do still exist (mainly running older building equipment). Just a year or so ago I had someone try to daisy-chain one of those through a modern PoE switch that we had just installed and ended up cooking $5k of hardware!

[DezzarTac]

I didn't know this channel was still active; I honestly thought it was abandoned a while ago! Thank you for all your hard work!

[its_alammari]

The best notification i get is from this channel 😍😍

[ssamurai]

Love your stuff, I am a tech and engineer and watch your videos all day at work.

[ompantoa]

Dulu ingin belajar begini harus beli buku atau kursus, sekarang modal YouTube saja sudah bisa dapat ilmunya, thanks bro, sangat bermanfaat

[ahmad-murery]

This video is a Power over Internet to me
Thanks for your continued efforts to simplify the networking for us

[Perragy]

This is a deeper explanation of POE looking at the Active and Passive features. I never knew this! Thank you Powercert