56RS-232 RS-232 debugCOM.It is for general COM debug to configure IPaddress or transfer transparent COM data.VGA VGA videooutput portVGA video output port. Output analog videosignal. It can connect to the monitor to viewanalog video.2.2.11 NVR74-8P/74-16P SeriesThe NVR74-8P series rear panel is shown as below. See Figure 2-32.Figure 2-32The NVR74-16P series rear panel is shown as below. See Figure 2-33.Figure 2-33Please refer to the following sheet for detailed information.Port Name FunctionPower switch / Power on-off buttonPower inputport/ Input AC 100~240V.MIC IN Audio input port Bidirectional talk input port. It is to receive theanalog audio signal output from the devices suchas mike phone, pickup.MIC OUT Audio output port Audio output port. It is to output the analog audiosignal to the devices such as the sound box. Bidirectional talk output. Audio output on 1-window video monitor. Audio output on 1-window video playback.VIEDEOOUT Video output port CVBS output
