Powerline (PLC) modem 12-14v DC for ethernet

I have a number of Arduino devices that are connected using simple two core cable which is carrying 12-14v DC. What I would like to do is send ethernet traffic over the same wire as is done using Power Line adapters over mains wiring (using wifi and running Ethernet is not an option in my case). I have seen examples were people have taken mains PLC devices removed the high voltage components and used them in a low volt DC setting, so it appears this does work (however these are large boards and a hack to demonstrate an idea).

Can anyone point me to an off the shelf or a circuit diagram for a low voltage (12-14v DC) PLC ethernet modem for this specific use case. The smaller the better in my case.

Thanks,

Pete.

Hi,
You might be looking at this the wrong way around.
Google;

Power over ethernet

Tom... :grinning: :+1: :coffee: :australia:

Thanks for the response. This indeed would be a simple solution, but just to confirm. Unfortunately, running Ethernet cable is not an option in my use case.

Hi,

To efficiently run ethernet you will need ethernet grade cable, that is why its power over ethernet.

Google;

data over power

Tom... :grinning: :+1: :coffee: :australia:

Thanks again for response.

Here is a link to the example I mentioned.

https://hackaday.com/2019/11/14/ethernet-over-dc-power/

Hi,
But I think you will find the speed will be limited by the power cable.

Have you tried it, might be the next step.
http://www.helicopting.de/

Tom... :grinning: :+1: :coffee: :australia:

https://uk.pi-supply.com/products/lx200v20-plc-homeplug-av-power-line-module-high-speed-up-to-200mbps-with-128bit-aes-encryption-and-power-line-twisted-pair-ethernet-interface