@Tester101 and this is why context is important. in one post you say 150 ft of cable. in another you say 10k feet of underwater cable. there is an incredible amount of engineering effort to get signals to travel through underwater cable. something simple that would work for 24v AC signals over 150ft of cable WILL NOT WORK for underwater cable at the lengths you describe.
@HerrBag I was watching a This Old House a while back where they simply laid out all four tiles with spacers, put the inlay tile on top, and marked the cuts. Only had to eyeball the position of the inlaid tile since the corners should line up with the center of the grout lines.
@BMitch @HerrBag if i had to choose between the This Old House method and @HerrBag's, i would choose HB's. Put down the tile to pick it up and cut? no thanks. Let's mark a stack of tiles, then cut all the tiles, then put them all down. Hooray for batch production!
@longneck If you've got 50 to cut, then I'm all about batch production. I think they were only marking the tile for a handful of accents in the center of the floor, so visualizing it was also important.
Keep in mind that the mod elected is mod for life, they don't have to answer your questions about why the didn't do X in a few years. Not that that's really stopped any other politician.
@Tester101 What about each switch energize 3 different oscillation frequencies, mux them through an Op amp. 3 PLLs at the detector end can decode each switch. @gregmac suggestion of rs485 should be able to drive the distances needed. 4-20 mA current loop is another class that would drive that distance
I think its odd that SE allows voting on the questionnaire because of the effect whose name I can't remember where people vote more on the first thing they see because it's the first thing they see
@NiallC. You and me both, but voting is built into meta, so it would be a process to remove it. On the election form, the candidates are intentionally randomized.