| 摘要 |
PURPOSE:To adopt both a switch box system and a dispersion system by simple constitution by outputting loudspeaker number information basing on zone indicating information given from a switch box, and also outputting the loudspeaker number information basing on incoming information. CONSTITUTION:In case of a switch box system, when incoming information (a) reaches a B board 7, an operator inputs zone indicating information (b), and basing thereon, a loudspeaker selection control part 8 outputs corresponding loudspeaker number information (c). A loudspeaker selecting part 9 connects some of corresponding loudspeakers 101...10l and the switch box, an audible sound signal (d) is given and an audible ringing signal is outputted. On the other hand, in case of a dispersion system, the incoming information (a) is given to the loudspeaker selection control part 8, the loudspeaker number information (c) is searched by a conversion memory table, sent out to the loudspeaker selecting part 9, and also audible sound output information (e) is sent out to a sound source part 11, an audible sound signal (f) is given to a selected loudspeaker, and an audible sound for showing incoming is generated. |
