Who else understands what Gary is about to say before they watch his videos but watch them anyway just because he is a damn fine bloke ?? ;-)

I think that we've had something similar to that in the land lines, it was powered by the land line and didn't have any batteries or needed to plug it in.

This is so cool! It kinda feels like a digital equivalent to phantom power, which music gear uses to send 48v to condenser microphones along the same wires which the signal is sent.

I finally get it! Thank You Gary for the clear explanation. You've given me confidence to deal with PoE devices and talking to men about it. Jan - 68 years old, San Francisco

POE is an absolute blessing when fitting Closed Circuit TV cameras. I use CAT 6e because some cams with IR, UV lights are a bit more hungry for power

Would be nice to also include the differences between active and passive PoE. Like for people wondering why their PoE Ubiquiti AP doesn't work with their 802.3af switch/injector

Very nicely described, Thanks

Really enjoyed the video, thank you.

Awesome explanation!

What a great and simple explanation of what a POE and a POE+ is. Thank you.

Great topic , can't wait to watch the next part which I hope will be more technical 😜

Pretty cool. Would be nice to have this as standard in every home router soon :)

Thank you for the clear explanation

Wow this is awesome!

Gary. How does an injector affect the max advised cable run for Ethernet? Total length of "Switch to Injector" plus "injector to powered device" less than 100m? I would expect that a lot of the time injectors will be sited close to switch, so inj->device length can be nearly the full max advised length.

Thanks, very helpful.

Can higher wattage PoE++ be used with regular cat5e cables or do they need higher cats or special types of cables to handle the current?

nicely explained

Great video! Will you also make a video about "Power over Data Line" and Single Pair Ethernet?

Keep up the good work Gary !!!

Good video. I didn't notice Gary say but POE uses the standard cat5 etc cables (not a special cable).

One thing I'm curious about is what wires in the cable deliver power? (And is color standardized like yellow is power and brown is data or maybe blue could be power or data)

I think Power over HDMI (or MHL) needs to make a comeback! There are so many streaming dongles & sticks sold these days and what's holding me back from getting one is the unnecessary cabling I'd need. My TV even has a MHL port but no stick or dongle supports it 😫 The right place to start removing the charger is on these things as there are better ways (for consumer AND manufacturer)

Really nice.

Hello Gary, thank you for this excellent video and instruction. I am a newbee so pardon my question. Does the TP Link injector provide power for one device - in other words, if I have more than one device that is not POE compatible, do I need one injector for each device? Also, the description on Amazon does not include support for Windows 11. Can you recommend a Windows 11 compatible injector? Thank you in advance.

Gary could u explain what Tesla is doing with its dojo project D1 chip .

If you have an NVR device for your security cameras (poe), should you still get a switch? I am interested in getting a security solution that has the option to connect and power 12 cameras (they say it’s just plug and play).

well explained

I have a POE Wifi Accesspoint. Can I run that cable to A Sonos Music amplifier first then up to the Accesspoint without damage to the amplifer?

Super! 🙌

Thanks Gary!

Is all these cat5e and Cat6e cable are POE compatible?

hello,! how much power output needed to power a router 12v 1a wired repeater(rujie 1200 pro) with a distance of 30meter upto 50meter I'll be using a rujie 1200 pro as main router and ax1800tplink or rujie 1200 pro as wired repeater that are connected to the main router but I don't know how much power I need there are 52v,47v 1a, 24v 1a, 15v 1a , 12v 1a as the option for POE adapter or POE injector

That is interesting. I have had 100 mbit routers for years. Worked fine for my home. I got a new internet provider and there modem in Gigabit. So I got 2 used 3Com Gigabit off ebay and I was floored how much faster it was. :-O While some of the wiring was cat4 when I bought the house 20 years ago, I have updated some with cat5 in areas that was easy to reach... :-) So while searching for routers I see the PeE ones and did not get them as I was not sure what they were for or if I would need them and I probably won't. But I see where the outside camra bit would be useful... An there is the little add-on box in the video if needed. Lol Off to run some Cat5e cable with my son, the boys are excited as the games are faster they say... Lol Don't play games so I have to take there word... Thanks for the video! LLAP

TIP: Dont use 5 volts PoE on cable over 5 meters, you wouldn't get enough power. Iinstead run 24v, 36v, or 48v adapter then use converter box at the end of the cable to convert those voltage to 5v.

wow great explain

Why do I have to put in the data cable? I was trying it with power only but this doesn't work. I need it just for the power component.

Maaaan, I love how you pronounce "Microtik" as "meecro-"! People don't realise how irritating it is to hear "raspberry pie", "golden number fye"... -that's what I was going to say until I heard "raspberry pie" right at the end of this video :D

will it work on ip camera with Ethernet socket?

With a Tplink, POE injector, can we connect to a 12v DC camera? The tplink injector produces 48v output DC.

What about POE + ? Do they make something to convert POE to POE + I have POE but need POE+ for a security camera? How can I accomplish this

In the next video please explain the risk of connecting a PoE cord into a non PoE Ethernet Port and incompatibility issues please.

Is there technical difference between yellow and blue etherent cable? my AP outdoor device not tuning on with yellow

What's the difference between power and data? How a device or PCB distinguish between power and data ?

thanks for the video. How many cable pairs does the PoE needs?

Nice video. What is IEEE802.3az do you know ?

Small caveat. Gary is describing Active POE which is quite intelligent - the PSE and the device handshake to get reqd power. POE is typically 48VDC. There is Passive POE like I have for my Ubiquiti wireless access point (AP AC LR) where the injector puts out 24 VDC without any handshaking etc. So need to he careful not to mix Active and Passive kit, lest the smoke escapes.

Can you use a POE switch on regular Ethernet which doesn’t require it? I would presume a fairly common use case and question which wasn’t covered.

So what happens if you hook it up to a non-POE device will it Cause damage

can handle PoE router?

Ethernet cable has like 8 wires in it would have been nice to know which lines were the power and which lines were data or does both get transmitted over the same lines?

*GARY!!!* *Good morning Professor!* *Good morning fellow classmates!*

Hello i just came across your channel.Could you tell me more about this

Can you use just any type of Ethernet cable to utilize PoE?

12.95 wow such precise stop

Does this trasfer data as well?

So not all devices/ports support POE?

Power!

Can I connect a PoE into a normal switch that is powered externally?

Hello, does that mean that a typical wifi router that was issued by ISP providers does not contain POE capabilities at all?

ahh so this is how these injectors work. Thank you

Does POE degrade speed? ie, from 1Gbps to 100mbps? because that is what I am getting - or I am using a poor POE injector?

Man you're so underrated

Here's the scenario: I have a smart device that consumes too much power for POE, but I need ethernet to control it and regular plug-in power to power it. Here's the question: Would I need a smart ethernet switch to turn off the power at that particular ethernet circuit?

I remember we used to use those injectors on my mom's laptop back in 2011 😂

Does the Cat matter, i.e. Cat 5 Cat 6 etc.

But if you have the injector that close to the device it's powering, you might as well just connect a power supply directly to the device.

👍

let me make it simple for you... Ethernet, 10Gbit or 1Gbit requires 4 pairs, 8 wires in total, but 100Mbit ethernet only requires 2 pairs, 4 wires in total, how an injector works is that it takes 4 wires and disconnects them to ensure there's no backfeed of voltage, it then leaves the other 2 pairs (4 wires) uninterrupted as a sort of "bypass". Next is the voltage injection, that's simple it adds the needed voltage down the wires that are now split off. it's quite safe as long as you don't plug it in the wrong end, it's quite easy to set up and doesn't cost an arm and a leg in patent t(r)oll's

That’s quite an evolution from BPL that really never took off.

Can you please explain why would someone choose this over Powerline networking ? And Could TypeC be the cable to replace all of these annoying cables ?

Or you can use a midspan to provide PoE.

ong

Come on ... put the next video up!

Am I the only one who initially thought POE was somehow hooking up ethernet to a regular power outlet via maybe an adapter and then have full ethernet speeds?

Thanks for this. Seems a bit of a niche tech. For remote cameras or such, a better approach is to have the data over WiFi and a simple power plug - eg mini usb cable over wall wort. Sounds like a fire hazard to have any significant voltage running over cat-5 , not to mention the susceptibility to lightening or power surges.

Rootah

for POE do not use copper cladded cable will over heat and cause fires

This equipment only solves the problem of data + power out, but still requires a normal connection to a power plug to get electricity. It should be data + power, both in and out.

Sorry about this, but this was a useful video in 2002...

I have no idea PoE is a thing lol

What an awful idea. This reminds me of the late 80s and early 90s, when a single bad node on a 10baseT network was able to short out and cause thousands in damage to the rest of the network because a 25 cent part went bad. No thank you.

OK FANALI GOT THEAT .DEFENETLI . OK BUT FOR WAT ELS EXEPT SECURITI CAMS SC CAMS !!! HMMM