Distributed intercom system

H - Electricity – 04 – M

Patent

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H04M 1/00 (2006.01)

Patent

CA 2603575

A distributed intercom system (10) including a centralized interconnection unit (12) with a central control device (14) for receiving, processing and transmitting signals, a power distribution device (16) for transmitting a power signal (18) for distribution and at least one cable connection port (20) for receiving a cable connection therein. The system (10) includes a cable (22) with a cable connection element (24) for connection to the cable connection port (20), and the cable (22) transmits a control signal (26), a line-level, analog audio signal (28) and the power signal (18). One or more remote user interface units (30) are connected to and in communication with the centralized interconnection unit (12) through the cable (22), and the remote user interface unit (30) includes an amplifier (32), a speaker device (34) and a microphone device (36). At least one component of the remote user interface unit (30) is powered by the power signal (18) transmitted by the power distribution device (16).

Système d'intercommunication distribué (10) comprenant une unité d'interconnexion centralisée (12) comportant un dispositif de contrôle central (14) servant à recevoir, traiter et émettre des signaux, un dispositif de distribution de courant (16) servant à émettre un signal de courant (18) afin de le distribuer, et au moins un port de connexion de câble (20) servant à loger une connexion de câble. Ce système (10) comprend un câble (22) pourvu d'un élément de connexion de câble (24) servant à effectuer un branchement sur le port (20) et le câble (22) transmet un signal de contrôle (26), un signal audio analogique de niveau de ligne (28) et le signal de courant (18). Une ou plusieurs interfaces utilisateurs à distance (30) sont reliées à l'unité d'interconnexion centralisée (12) par l'intermédiaire du câble (22) et communiquent avec cette unité d'interconnexion (12), et l'interface utilisateur à distance (30) comporte un amplificateur (32), un haut-parleur (34) et un microphone (36). Au moins un élément de l'interface utilisateur à distance (30) est alimenté par le signal de courant (18) émis par le dispositif de distribution de courant (16).

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