For example , if a module is usually powered up also it sends out a signal of fifty percent the voltage and the technician will not know this, he'd think he provides a problem, as this individual would expect a 12v signal. Here a switch has been added to control an existing receptacle. basic household circuit Home electrical wiring, House The following diagrams show each wiring configuration. Switch and outlet wiring diagram . The same wiring diagram can be used if the power is instead coming from another outlet and connected to one of the depicted outlets on the end. Or if the top and bottom outlets of a duplex receptacle are powered by two different circuits, the hot tab and possibly the neutral tab will be removed. Each part should be set and linked to other parts in particular way. For example , when a module is powered up and it sends out the signal of fifty percent the voltage in addition to the technician does not know this, he. Nancy october 21, 2017 at 4:40 am...