Cómo conectar un telefonillo sin saber las conexiones del antiguo

In this video, I'll show you, in a very visual way, how to connect an intercom without knowing the configuration of the five wires. That is, using the five wires from the previously installed intercom, you'll learn where each wire connects. This video is for a 5-wire intercom installation, also known as 4+N, which is analog. To do this, you need to use the same intercom that was in the original installation. If you don't know which one it was, or if you prefer, you can replace it with a universal intercom of any brand, although I've always installed a Fermax. The link to the equivalence table, which shows which wire corresponds to each number, is: https://www.serviciotecnicofermax.com... If you have any questions, please leave them in the comments, and I'll answer them shortly. Here's the link to buy the Fermax universal intercom on Amazon: https://amzn.to/47STGnc If you'd like to contribute: https://paypal.me/manuelectricista?co...