... RJ 45, RS-485, remote control IMPERXTECH 16CH Real time DVR, Economical, Free DDNS Network DVR For security ... HI3515Operating SystemEmbedded LINUXSystem ResourcesPentaplex function:live,recording,playback,backup & remote accessUser InterfaceGUI,on-screen ... &Recording ModeManual>Alarm>Video Detection>ContinuousPlaybackPlaybackMulti channels playback simultaneously,pause,stop,rewind,fast play, slow ...