| 摘要 |
<p>The device (1) has a selection unit (40) arranged for controlling switching units (SW1-SW7) e.g. electro-switches, to distribute selection of an output connector (J5) i.e. RJ45connector, and interrupt flow dissemination of other flows of signals of natural voice and/or images that are broadcast by a set of input connectors (J1-J4). The input connectors are not provided as a part of the selection by the selection unit. The switching units electrically isolate the output connector from the input connectors with respect to unselected flow of signals. Independent claims are also included for the following: (1) a central switching system (2) a communication electric board.</p> |
