This might be tangential to HomeAssistant but Im currently thinking about a household renovation and one thing I am considering is wiring.

I have some POE devices along with many other that run with a 12v DC supply.

I’m lookin at putting in a relatively straightforward 12v battery UPS with a small solar panel to charge. I probably only have space for 1500W of panels so putting in a whole grid tied solution is overkill. Primarily this is to provide backup as we sometimes lose power.

Networking wise I think I will put RJ45 into each room as we are concrete reinforced construction and so signal quality is an issue.

My query was how feasible it is to run both standard PEO devices and 12v devices (1-2w) all over POE.

I thought the alternative would be to run separate 12v cables with USB connectors at the end into each room as well as Rj45

Is anyone else doing this in their home?

  • abeorchOPEnglish
    1·
    3 months ago

    So a bit more thinking on this.

    Looking at https://community.fs.com/article/understanding-poe-standards-and-poe-wattage.html POE could probably do a lot more than a few watts and could t feels like I could use POE to provide power for most of my devices providing cabled connection and power in one.

    On the input side of things one idea I had was if I was running 12v DC on a separate cable run to power that I could have a battery / solar panel providing an independent supply since our 230v AC is strung from poles and does trip in bad weather.

    Using POE does complicate that slightly I would have to find injectors that I could take that input and then extractors for USB, RJ45 and 12VDC output.

    On the positive side of thing it would mean I could really reduce the number of 230 VAC sockets I would be putting around the house with just kitchen and laundry needing them.

    Im also considering doing lightning at 12V LED rather than 230V