I finally saw the point of those old Otis relay panels after a trip to the Boston Public Library

They have a working elevator from the 1920s, and I watched the maintenance guy do a full check on the original relay logic. He said the clear layout lets you trace a problem in minutes, something you can't always do with a modern controller's error code list. It made me think maybe we lost something moving everything to digital menus. Has anyone else worked on one of those old systems and found it easier to fix than you expected?

2 comments

2 Comments

jake_thompson1mo ago

Always thought they were just clunky antiques, but seeing the logic laid out like that is actually pretty smart.

finley_bennett281mo ago

Wait, they still have a guy who knows how to work on that 1920s relay logic? That's wild, I figured that knowledge was long gone.

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