SISTEMA DE CIRCUITOS PARA INSTALACOES DE TELECOMUNICACOES, EM ESPECIAL INSTALACOES DE COMUTACAO TELEFONICA, NAS QUAIS APARELHOS INDIVIDUAIS SAO COMANDADOS POR UM DISPOSITIVO DE COMAMDO CENTRAL POR MEIO DE INSTRUCOES DE COMANDO

After connecting a device to the switching device through device-specific connect command and transmission of a start command as well as transmission back of a start command acknowledgement signal, the connect command is partially or slightly changed and transmitted again, whereupon the switching de...

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Bibliographic Details
Main Author GERHARD PREY
Format Patent
LanguagePortuguese
Published 01.03.1995
Edition5
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
PHYSICS
TELEPHONIC COMMUNICATION
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Summary:After connecting a device to the switching device through device-specific connect command and transmission of a start command as well as transmission back of a start command acknowledgement signal, the connect command is partially or slightly changed and transmitted again, whereupon the switching device transmits a stop command to the particular device. The stop command is responded to by the particular device with a stop command acknowledgement signal transmitted back only, if after established connection it has received a start command before a stop command. The activation error is recognized in that after output of the changed connect command and the stop command transmitted thereupon each time, a stop command acknowledgement signal arrives in the switching device.
Bibliography:Application Number: PT19880086997