System for the transmission of audiovisual signals between source nodes and destination nodes

central switch for connection to a source node, and to a plurality of home networks, the plurality of networks including a first home network comprising a destination node, each home network being connectable to the central switch via at least an access node, the central switch comprising:

• an interconnection management unit for managing the exchange of signals, the interconnection management unit comprising a selective authorization unit for selectively authorizing the transmission of signals from the source node to the destination node through the central switch and the access node;
• and
• a detection unit for detecting a direct junction between two networks of the plurality of home networks, which does not go through the central switch,
• wherein the selective authorization unit prohibits the transmission of signals through the central switch from a source node to a destination node in one of the home networks involved in a direct junction.

A control method for transmission of signals between at least one source node and at least one destination node in a system comprising a central switch connected to a source node, and a plurality of home networks, the plurality of home networks including a first home network comprising a destination node, each home network being connected to the central switch by at least an access node, the method comprising:

• managing the exchange of signals by selectively authorizing transmission of signals from the source node to the destination node through the central switch and the access node;
• detecting a direct junction between two networks of the plurality of home networks, which does not go through the central switch;
• and
• prohibiting the transmission of signals through the central switch from a source node to a destination node included in one of the home networks involved in the direct junction.