Classroom on demand

Welcome to Classroom on demand, your source for educational materials related to the vertical transportation industry. This site represents the knowledge and expertise of the best engineers and mechanics in the elevator industry, and will help those new to the elevator industry learn about the basic workings of elevator systems, and also will serve as a reference for people with more experience.

Accessories Module

Accessories Module:This module contains a number of individual components that do not necessarily have a relationship with other modules:

Pit Switch: A safety device used to disable the car before entering the pit.
Car Top Station: A device, located on top of the car, used by maintenance personnel to control the car movement.
Fire Key Box: Fire key box contains the key to activate phase I fire service (used by firefighters or rescue personnel). It is typically mounted in the hall, next to the opening at the egress level.

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