A lift floor selector, on the front of this is a number of relays that close when somebody presses a call button, either within the lift or on the landings. This is how the controller knows it needs to go and serve that floor, but not until all calls in the current direction have been served. 24 Sep 2011
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See full size image Caption: A lift selector call relays, 24 Sep 2011 Description: A lift floor selector, on the front of this is a number of relays that close when somebody presses a call button, either within the lift or on the landings. This is how the controller knows it needs to go and serve that floor, but not until all calls in the current direction have been served. 24 Sep 2011 Alt text: A lift selector call relays, 24 Sep 2011 Image credit: Team Urbex - ATF Photo subject date: 24/09/2011 |