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.

Directional Start Switch

A key operated switch located generally in the newel bases at both the upper and lower landings. Allows the designated authority to select movement of the escalator stairs for up or down direction. Sometimes located in adjacent walls or columns.

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