English_11!overviewpArT nAmeS And funCTionS (fronT)Sdr-5100/4100Part NamesFunctionsaUSB PortConnects the USB devices.bRemote ControlReceiverInput the remote control signal.cLED IndicatorPOWER: Displays the power ON/OFF status.ALARM: Lights on when an event occurs.REC: Lights on when recording is in progress.M`All functions are operable with mouse control, since there are no front buttons.acb