© Copyright Qvis® All documentation rights reserved. 132 Overview and ControlsThis section provides information about front panel and rear panel. When you install this seriesDVR for the first time, please refer to this part first.2.1 Front Panel2.1.1 iApollo HDRT HDThe front panel is shown as in Figure 2-1.Figure 2-1Please refer to the following sheet for front panel button information.Name Icon FunctionPower button Power button, press this button for three seconds toboot up or shut down DVR.Number button Number 0-9 andetc Input Arabic number Switch channelShift In textbox, click this button to switch betweennumeral, English (Small/Capitalized), donation andetc. Enable or disable tour.Fast play Various fast speeds and normal playback.Slow play Multiple slow play speeds or normal playback.Play/Pause In backward playback or pause mode, click thisbutton to go normal playback. In normal playback click this button to pauseplayback In pause mode, click this button to resumeplayback. In real-time monitor mode, click it to go to thesearch interface.Reverse/Pause In normal playback or pause mode, click this buttonto reverse playback In reverse playback, click this button to pauseplayback.Play previous In playback mode, playback the previous videoPlay Next In playback mode, playback the next video