Bus broadcast intercom system

The invention discloses a bus broadcast intercom system, comprising a central bus switcher, a terminal, a multi-channel audio bus and a telephone relay module, wherein the audio bus is connected with the central bus switcher, bus sockets are connected to the audio bus at intervals, the telephone rel...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	REN GUANGKUO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY SELECTING TELEPHONIC COMMUNICATION TRANSMISSION
Online-Zugang:	Volltext bestellen
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