Source google image: https://www.systemed.fr/forum-bricolage/old_images/pirog/2011-01-22_172049_plan_interpnone-sonnette.JPG
Schema electrique visiophone 6 fils
Source google image: https://www.systemed.fr/forum-bricolage/old_images/pirog/2011-01-22_172049_plan_interpnone-sonnette.JPG