It is widely used in mini-radiostation,moobilecommunication,pager,interphone,CTV,video cassette recorder,remote control unit,telephone,electric clock,VCD,DVD,computer,ect .

广泛应用于小型无线电台，移动通讯机，寻呼台，对讲机，CTV，录象机，遥控器，电话机，电，VCD，DVD，算机，游戏机等电设备及仪器中。

A device used to indicate that remote connection to an interfacing computer by Dataphone or Dataset is possible.

一显示设备,可以通过数据电话或数据(是调制解调器)指明和一台接口算机的远程连接。