Source google image: https://www.habitat-automatisme.com/blog/wp-content/uploads/2010/03/Plan-implantation-des-gaines-%C3%A9lectriques-pour-portail-battant.jpg
Schema installation electrique interphone
Source google image: https://www.habitat-automatisme.com/blog/wp-content/uploads/2010/03/Plan-implantation-des-gaines-%C3%A9lectriques-pour-portail-battant.jpg