Source google image: https://www.systemed.fr/forum-bricolage/old_images/pirog/2011-01-23_081022_plan_interpnone-sonnette_bis.JPG
Schema electrique portier video 4 fils
Source google image: https://www.systemed.fr/forum-bricolage/old_images/pirog/2011-01-23_081022_plan_interpnone-sonnette_bis.JPG