摘要:
An electronics card comprising a stack of printed circuit layers, each comprising an electrically insulating support having at least one conductive track extending thereon, and two electromagnetic shields extending respectively over a top face and over a bottom face of the stack, each shield comprising a grid and a plate that are superposed and electrically conductive, each extending over an electrically insulating support, and the conductive tracks being obtained by solid copper type etching. The invention also provides a device including such a card, and a method of protecting such a card of such a device against a lightning strike and against electromagnetic radiation.
摘要:
An electronics card comprising a stack of printed circuit layers, each comprising an electrically insulating support having at least one conductive track extending thereon, and two electromagnetic shields extending respectively over a top face and over a bottom face of the stack, each shield comprising a grid and a plate that are superposed and electrically conductive, each extending over an electrically insulating support, and the conductive tracks being obtained by solid copper type etching. The invention also provides a device including such a card, and a method of protecting such a card of such a device against a lightning strike and against electromagnetic radiation.
摘要:
A call is managed between a network and a telecommunications system (10) including a gateway (13), one or more interface devices (14-16) each of which can be connected to the gateway, and one or more sensors (17A, 17B) of information relating to the respective environments of the interface devices. The sensor senses information relating to the respective environments of the interface devices. Then, as a function of the sensed information, an interface device is selected. Finally, the selected interface device is connected with the gateway to enable a call between the selected interface device and the network.