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5，专业供应消防应急广播主机GB9242/KT9242（消防广播主机、公共广播主机）
消防应急广播系统系指当建筑物及应用现场出现紧急情况时比如：火警、匪警及其它突发性灾害事件，系统应可立即取消任何非应急广播功能，保证将应急广播信息可靠、及时、准确的广播到一个或多个指定的区域，广播的语言信息应清晰、可懂。
1,应急状态，自动停止普通广播，同时启动应急广播
2,应急广播状态可自动播放预设的广播语音信息
3,数字电位器调整无定位，连续可调和预置音量
4,手持传声器：有“讲话”“复位”功能
5,应急广播时能启动30分钟以上的数字录音
6,线路输入、线路输出，可选择切换音源
7,有输出过载、短路、过压保护、过温保护
8,功放输出有录音
9,功率输出：150W/300W/500W
10,尺寸3U
Fire Emergency Broadcast Host
1, In a state of emergency, the system can automatically stop the ordinary broadcast,and start the emergency broadcast at the same time.
2, Broadcasting in a state of emergency, system automatically to play tpre-set voice messages.
3,Using digital potentiometer; the volume can be adjusted continuously, and can be preset.
4,Hand-held microphone: have “speech” and “reset”Function.
5,Broadcasting in a state of emergency,systems can start than 30 minutes of digital recording
6,Line input; Line output; Can choose to switch sources.
7,Pretects and gives an alarm when output overload, short circuit, overvoltage , overheat.
8,Amplifier output was monitoring.
9,Power output: 150W/300W/500W.