USB LAN with POE (far to many acronyms)

[BiggestNizzy]

Hi All, I have a small project where I want to connect some cheap windows tablets to a network. Due to the location, I want to avoid using wifi at all costs so I came across some USB to LAN adapters that way I could connect it to the network using the USB port on the device, the only problem then is I can't charge it and connect it at the same time

Next thought was could I use POE (power over ethernet) to charge the devices. I have tried looking for an off the shelf solution but can't find anything. Does anyone know where I can find such a thing?

Failing that I could buy a cheap USB to LAN and a 48v to 5v Dc-DC converter and whip out the soldering iron send power from the DC-DC converter to the device to charge it and work the USB to LAN converter. That being said I don't want to fry any of the components as in truth I don't really know what I am doing.

The aim is to run a single cable from the POE switch to each device saving on clutter. something off the shelf is the prefered option.

[kerryxeg]

https://www.ebuyer.com/664494-netgear-p ... 8pe-300eus

This is the Netgear POE switch I use for networked cameras, but I'm not sure if that's exactly what you are after.

[BiggestNizzy]

The poe stuff runs on 48v I want to be able to step that down to 5v and feed it into a USB to power a device as well as using the serial connection in the USB for data.

[cstrachan]

can you not just split the USB or am I missing something?

Something like (has to be special type not just standard)

https://www.banggood.com/4-Port-Micro-U ... rehouse=CN


would then look something like

http://www.instructables.com/id/DIY-Cab ... harge-the/

you would need the original charger so have 2 cables to the tablet not just 1, but it should be a simple neat soltion

[BiggestNizzy]

DIY might be the best option.