Wall dowels
The excellent photo below, is segment of Installation of a doorbell in an apartment content which is listed within Accessories, and posted at November 23rd, 2016 11:41:32 AM by adminz.
Installation of a doorbell in an apartment : Wall Dowels
Quote from Article entitled Installation of a doorbell in an apartment:
Standard wiring circuit of a doorbell exactly copy the common switch circuit, and it is known, it is the easiest of all the existing electric circuits. The only thing is that a sound mechanism is used instead of light bulbs and a button - instead of switch. Zero connects to the sound panel and the phase - to the button. In this case both elements are also interconnected. Pressed the button, the phase closes and the bell rings.
The full version of the article can be found here.
Photo Gallery of the Installation of a doorbell in an apartment
