Telic Alcatel

Alcatel

Giovanni Dortu

Gérard Vergnaud

Francois Buhagiar

Gerard Cardot

A terminal adapter connects a terminal to a computer local area network capable of identifying any of several terminal types by detecting the presence of a particular identifier electronic circuit specific to one type, even though the terminal does not include any such identifier circuit as standard. The terminal adapter includes first connectors for inserting the adapter between two sections of a connection between the terminal and the network and an identifier circuit specific to one type of terminal that the network is able to detect. The identifier circuit is connected to at least two conductors of a network side section of the connection.

Terminal adapter for connecting a terminal to a computer local area network capable of identifying any of several terminal types

The safety interlock for a cover of a housing in a telephone apparatus provides electrical safety for the user by requiring the apparatus to be disconnected from a telephone line before the cover of the housing can be opened. The apparatus is connected to the telephone line by means of a two-part pluggable connector, with one of the parts being a receptacle fixed in the case of the apparatus. The safety interlock comprises a flap (8) which slides inside the case (1, 2) of the apparatus over the opening (5) giving access to the telephone line connector receptacle, with the flap sliding between a closed position in which it disengages the opening (5) while holding the cover (8) of the housing closed, and an open position in which it obstructs the opening (5) while allowing the cover (3) of the housing to be opened.

Safety interlock

The protection device in accordance with the invention is connected in series with the line. It comprises either a circuit (1) for providing protection against voltage surges, or else a filter (2) for providing protection against radio frequencies, or else both said circuit and said filter. It protects terminal equipment (telephone set, data terminal, fascimile machine, etc.) against disturbances both in differential mode and in common mode. The device is mounted in a protection connector which may either be of the wall socket type or else of the removable adapter type for plugging into a conventional wall socket, and in either case the terminal equipment has a plug which plugs into a corresponding socket of the protection connector.

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Cormeilles en Parisis, France

Giovanni Dortu