PoE carries power and data over a single ethernet cable. A PoE switch, generally outputs 48 volts DC. For tablets an injector such as this one allows you to use and non-PoE switch and enures the tablet gets 5 volts DC.
Okay so with the link you posted, I could run my CAT 6 in wall Ethernet cable from my router to the wall mounted tablet location and plug the end of Ethernet cable into that device you posted and then into the tablet? Which of the male connection on that injector plugs into the female slot golf the tablet and does it receive internet that way?
Most tablets are only designed to run over Wi-Fi, not directly cabled ethernet. Using a POE cable for the power won’t change that.
Some android tablets (but not all) can do a USB to ethernet configuration, but they won’t be able to run with a POE cable. In fact, you won’t be able to charge the tablet and use ethernet at the same time.
The following company makes these kinds of adapters for schools to use, and they have a good information page:
I think there are a couple of non-surface type Windows tablets that do have an ethernet port, but to be honest I’m not sure.
Yes, there are some tablets with ethernet connections, but they are mostly older Windows devices. There are a few android ones which tend to be really big and intended for commercial wall displays and probably aren’t what you were looking for. Those are also very expensive.
Alternatively, there are some android tablets which can use their USB port with a dongle to accept an ethernet connection, but when you do that, you can’t use the same port for charging the tablet.
Why do you want to use ethernet instead of Wi-Fi, which is already wireless?
As far as good ways of mounting a wall tablet so that the wires don’t show, see the following thread. Lots of different approaches are discussed there, some with pictures.
I just assume Ethernet would be faster and more reliable. I find with the SmartThings app on my phone, many times I have to refresh or turn off then back on my WiFi in order to for it to work. I assumed with something like action tiles it would be the same issues which would be annoying on a wall tablet which I want real time up and running all the time.
Do you have your tablet set to not sleep wifi when plugged in? Most android devices are set to turn off the wifi radio if it’s not used within a set period of time to save battery power. You can set the tablet to not sleep the wifi when it’s plugged in. That might be the reason your lose your wifi connection.
Before the days of PoE, I have seen some adapters that were used to send power over the unused pins of an RJ-45/Cat-5 cable (4,5,7,8 or Blue, Blue/white, Brown, Brown/White) but each end has to have the adapter and you will limit your throughput to 10MB/s or 100MB/s, which is not usually an issue. The switch side plugs into the wall, drops the voltage to the device’s need, and sends it on those unused wires. The device side picks up the power off of those unused wires and puts it into the power connector for the device, like a barrel connector.
I give no indication of there being any type of warranty if you do this and I am not responsible if something blows up, but I have seen where you can cut the low voltage side and put that on the blue or brown pairs of wires, then build another adapter for the other end that takes those blue or brown pairs of wires and sends them to the device’s power connector.
I would never do this will full line voltage but low amp, 3v - 24v, power, you might be OK.
I got home from vacation today and immediately installed fully kiosk on my Fire tablet. OMG I feel like such an idiot for not doing this sooner. This is works super well. What a great app! Here’s a photo of my fire tablet running the latest HousePanel