Front Panel and Rear Panel 9No. Port Name Function8MIC IN Bidirectional talk input port. It is to receive analog audiosignal from devices such as microphone, sound pickup.MIC OUTAudio output port. It is to output analog audio signal todevices such as sound box. Bidirectional talk output. Audio output on 1-window video monitor. Audio output on 1-window video playback.9 USB port USB3.0 port. Connect to devices such as mouse, USBstorage device and USB burner.10 Network port 10M/100M/1000Mbps self-adaptive Ethernet port. Connectto the network cable.11 Power input port Input power of 100V-240V and 50Hz-60Hz.12 GND.2.2.3 NVR52-16P-I/52-8P-I/42-16P-I SeriesThese figures are for reference only. The actual product shall prevail.Figure 2-5 NVR5216-16P-IFigure 2-6 NVR5216-8P-I