On A 3-way, there’s an additional terminal, known as the “common.” Power comes in on the switch over the widespread, then two “traveler” wires link the very first switch to the second about the brass terminals. In the event the equipment is effective as envisioned, the wiring is productive. Nonetheless, https://smart-switches-australia20852.laowaiblog.com/33742112/smart-power-points-and-switches-no-further-a-mystery