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[quote user="gregc"]LCC is promising to control lots of things (e.g. signalling, turnouts control and position sensing, occupancy detection, ...).   Lots of communication detail, but how does everyone expect it to work (different types of signalling, human interfaces, automation, ...).[/quote] LCC products currently available use the same communication protocol as your car, a Controller Area Network.  <a href="https://en.wikipedia.org/wiki/CAN_bus">https://en.wikipedia.org/wiki/CAN_bus</a> Here are two videos of LCC working, demonstrating turnout control, signaling and grade crossing, and detection circuitry (this layout uses current sensing). <a href="https://www.rr-cirkits.com/LCC/NMRA%20LCC%20Demo%20Layout.html">https://www.rr-cirkits.com/LCC/NMRA%20LCC%20Demo%20Layout.html</a> Each device learns which other device(s) it is to talk to, all other messages are ignored and pased on.  You do the teaching.  (extremely simplified explanation)   A video showing how this is all set up (3hrs) can be found here: <a href="https://www.youtube.com/watch?v=00pYUJ7xqSo">https://www.youtube.com/watch?v=00pYUJ7xqSo</a> That all being said, expense is a factor.
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