| 摘要 |
PURPOSE: A plug-in type digital public address system using an automatic addressing method is provided to facilitate easy installation by performing automatic recognition without additional configuration when a module is attached or detached. CONSTITUTION: A system controller(30) comprises a main controller, an indicator, a communications unit, a power unit, an input unit, a contact point output unit, and a local connection unit. A power amplifier(53) amplifies sound source necessary for broadcasting which is outputted from the system controller. A sound player(52) conducts data communication with the communications unit. The sound player generates sound source necessary for broadcasting. A control computer(51) configures, manages and monitors the entire public address system. [Reference numerals] (31) Indicator; (32) Main controller; (33) Power unit; (34) Sound input unit; (35) Touch point input unit; (36) Touch point output unit; (37) Communication unit; (38) Voice output unit; (39) Manual area selecting unit; (41) Remote microphone unit; (42) Local area connecting unit; (43) Unit for receiving fire accidents; (51) Control computer; (52) Sound player; (52a) CD player; (52b) Digital tuner; (53) Power amplifier; (54) Amp checking device; (55) Relay group; (56) Remote microphone; (57) Local area equipment; (58) Fire accident receiver; (59) Speaker; (AA,JJ) Audio input; (BB,PP) Touch point input; (CC,QQ) Touch point output; (DD) Communication line; (EE,LL) Audio output; (FF,HH,II) Data line; (GG,MM,NN) Data, audio; (KK) Data; (OO) Data and touch point |
