On a three-way, there’s an additional terminal, called the “popular.” Power is available in for the switch around the common, then two “traveler” wires hook up the main switch to the 2nd around the brass terminals. Should the equipment works as anticipated, the wiring is prosperous. On the other hand, https://smartlightswitches20853.blogunteer.com/33764881/top-safe-electrical-wiring-secrets