AVS › AVS Forum › News Forum › Community News & Polls › 3M Ethernet-powered TV ditches conventional plug
New Posts  All Forums:Forum Nav:

3M Ethernet-powered TV ditches conventional plug

post #1 of 10
Thread Starter 
3M Ethernet-powered TV ditches conventional plug


The company claims that its polarizers can help reduce the power requirement of LCD screens and, as such, we've now reached a point in time where the traditional power socket is no longer needed to drive our screens around the home. It's not as simple as just plugging something into an Ethernet port and expecting it to draw power. It has to be a powered Ethernet port, which requires PoE or Power over Ethernet - a defined standard, but not a commonly found feature on home routers. But, the company also claims that Ethernet power ports are more affordable to install, and you don't need an electrician around to house to do it for you, so maybe it'll catch on. Plus, you'd have a wired network reaching every room of your house, and in a world where so many competing signals are playing havoc with many homes' wireless networks, that's of enormous benefit. The big real benefit we can see from this is that if this idea takes off, you'll only need a single cable for the TV of the future for both power and internet access, which might very well be the only two things TVs will be needing in due time.

For links and more stories visit the Hot Stories section at HomeToys.com
post #2 of 10
POE supplies up to 48V at under 1 amp...48W max.
A 120V AC socket with a 15 amp breaker can supply up to 1800W.
I think the marketing department is missing something.
post #3 of 10
"The big real benefit we can see from this is that if this idea takes off, you’ll only need a single cable for the TV of the future for both power and internet access, which might very well be the only two things TVs will be needing in due time."

Uh... for those who don't have a home theater or even a blu-ray or dvd player, I guess. Likelihood of that becoming commonplace? Yeah, I'm thinking zilch.

But, more importantly... it's easier to install?? First off, I don't think I've ever heard of anyone needing to install a power outlet in an existing room (unless it was for MORE power... cue Tim the Tool Man). Secondly, is installing an ethernet outlet really that much more difficult than installing an electrical outlet? Either way, you have to cut a hole, drag cable and wire the box. I guess with the ethernet box you just plug into the back(?), but that's just a small part of the whole process.

Don't understand why they're trying to butter this idea up so much.
post #4 of 10
Aren't all POE implementations limited to 100mb? I know that's how it works in our company with VOIP.

Besides that, POE switches are not cheap.
post #5 of 10
I think this looks like a great idea for new homes, and I believe that's who they are aiming for. The problem is getting TV manufacturers to jump on board, which would be difficult.

They claim that you don't need to follow the National Electrical Code which may be an advantage in that (they claim) you would not need a licensed electrician to install the new outlets in home. However the NEC does cover communication wiring installations. In fact, in some states, Minnesota included, you need to have a special license (power-limited technician) in order to install alarm systems, landscape lighting, audio video, and data wiring, so I'm not sure how they can square that claim.
post #6 of 10
I would be reluctant to put much power or current via a POE jackpoint as these things are designed for computer and fone services.. The cable is only 0.5mm and the IDC connector on the jackpoint is quite small..
post #7 of 10
Here's a link to the original, more skeptical and more informative article. Since the source link was busted and there is some odd redirect going on I had to search for it:

http://www.pocket-lint.com/news/4054...owered-tv-demo

Basically 3M is behind this, because they want OEMs to buy their polarizer material which they claim will lead to lower powered TVs. They demonstrated it with a tiny TV. I think the claim that it will be cheaper is silly, since ANY licensed electrician will wire up a standard outlet in no time at minimal cost, with the tools and parts they have in their truck.
post #8 of 10
Haven't they heard about network power line adapters? Mine works just fine, thank you.
post #9 of 10
Power over Ethernet (PoE) has been around for a number of years, and there are IEEE specs which describe it. IEEE802.3af is a PoE spec that shows how to send up to 13W of usable power, and IEEE802.3at is the PoE+ spec which gives up to 30W.

There are companies out there that make 60W PoE, devices. This is being called PoE ultra, and I understand that the IEEE committee is considering a new PoE spec to cover this power range. 60W is enough to power a netbook computer.

Providing enough power for TV is something that is being considered by HDBaseT. A committee that includes some of the big TV names - Samsung, Sony and LG. They are proposing a single Ethernet cable to carry 100W of power and uncompressed audio video and data. This will remove the need for expensive HDMI cables that can only run up to 10ft.

...and pushing the power capabilities to the limit, there is one company that makes PoE devices providing up to 200W of power. This makes Seth's dream of ethernet powered computers a reality.

For HDBaseT see: hdbaset dot org
For 60W and 200W PoE see: silvertel dot com
post #10 of 10
Some how I think that they are talking EOP (ethernet over power devices) not POE (power over ethernet devices)

I doubt your could power a 60-100" lcd/led tv on a poe solution ..


as for networking it is great though rather limited on what you can use it for
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Community News & Polls
AVS › AVS Forum › News Forum › Community News & Polls › 3M Ethernet-powered TV ditches conventional plug