Rittal Gmbh&co. Kg

Reimund Lotz

Oskar Elm

Heinz Schmitt

Holger Walberdorf

The invention relates to an operator's communication unit ( ) comprising a mouse ( ) and an annunciator ( ) that interacts electrically therewith, and a cable arrangement ( ) for connection to the input ( &prime;) of an operator's communication unit for a computer. The structure of the inventive device is simple and it is easy to handle by virtue of the fact that the mouse ( ) is connected via a single mouse cable ( ) and the annunciator ( ) is connected via a single annunciator cable ( ) to a common connection element ( &prime;), whereby the mouse cable ( ) and the annunciator cable ( ) can be joined together either directly or via an additional connection element ( ) or an additional transition cable ( ) and a connection element to the input ( &prime;) to the operator's communication unit for a computer ( ).

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Dillenburg, Germany

Reimund Lotz