Just an FYI Concord/Savaria has been known to quite frequently use a Dupline serial link system for even their very short rise installations. They typically use the Dupline system for hall calls, car calls, and selector. I believe each hall station is addressable but it does require a separate tool for programming. It might not be the case on this particular elevator but most of the newer Concord LULAS I have ran into have utilized this system.
