Abstract: In an arrangement located between input and output paths to carry out a broadcast operation, an input virtual channel identifier (VCI; is included in an asynchronous transfer mode (ATM) cell and given to a selected one of parameter production elements to access a conversion table connected to the selected parameter production element and to read a specific intermediate conversion parameter indicative of the broadcast operation out of the conversion table. The specific intermediate conversion parameter is sent to a first switch together with the ATM cell and to a second switch to be delivered to a plurality of the output paths. On the plurality of the output paths, the specific intermediate conversion parameters are converted into output VCI's which are different from and independent of one another. Thus, the broadcast operation is favorably carried out in the arrangement.