Otis Micro Motion

These buttons are found on newer Otis elevator installs. Chances are you have probably seen these buttons out in the field. This video shows the wiring up of these Micro Motion buttons.

These buttons require 24 volts. For these buttons, I recommend using 2 A23 batteries and a small battery pack. There are two possible ways to wire these buttons and the correct way depends on what kind of button you have. One way only uses three of the four pins, and the other one uses all four. I would recommend starting with the three pin configuration and trying the other one if the three pin does not work.