10base-t1l would be very useful for me, if there were consumer priced products available. I've got a single extra pair running to a gate controller that can do 10baseT ethernet, which would be a perfect fit for this as a bridge.
With the power over data line standard, it could be super easy. One side has a power input, a rj45 connector and a two pin screwdown (or whatever), the other side just the rj45 and the two pin. There's a product out there that's using an analog hybrid to run 10baseT over a single pair, but my run length seems to be just a bit too long for it to work.
You could also run SDSL modems, which have been the traditional way to do this for years. They'll adapt to the line's properties and give you as much throughput as they can. I'm not sure if any commercial offerings have a way to superimpose power, but I presume there should be some sort of power available at the gate too, no?
> presume there should be some sort of power available at the gate too, no?
There is and there isn't. The gate controller does have power, but the manual says not to tap into it, and it's fed low voltage a/c from a transformer elsewhere. The SDSL modems are usually too big to fit inside the box with the controller too (and it's metal, which makes wifi not an option). And, of course, it's only nice to have, so limited desire to make things fit or drill holes for antennas.
You are likely going to be waiting years for this. In the meantime, a directional CPE pair[0] as a WiFi bridge would probably do the trick for you in almost any scenario. You can run 24v down the single pair for power, if needed.
Then again, for a gate controller, I would probably prefer to see if it used 900/433mhz and do that instead directly from the house instead of doing a 5GHz bridge. You could also use the existing pair as a serial bridge, or even an antenna for the 433/900.
With the power over data line standard, it could be super easy. One side has a power input, a rj45 connector and a two pin screwdown (or whatever), the other side just the rj45 and the two pin. There's a product out there that's using an analog hybrid to run 10baseT over a single pair, but my run length seems to be just a bit too long for it to work.