A system for the dissipation of heat in at least one electronic device in a home network comprises at least one electronic device connected to a central unit (100) by a link (60a, 60b, 60c, 60d) comprising means (40a, 40b, 40c, 40d) able to transport data. This system is such that the heat dissipation is obtained by circulation of air through the link connecting the electronic device to the central unit. More particularly, the system and apparatus of the invention are situated in a home communications network comprising multimedia connection interfaces and an interconnection module.