Front Panel and Rear Panel 13No. Port Name FunctionCTRLControllable power supply output. Control the output of the on-offbutton alarm relay. It controls the alarm device with the presence orabsence of voltage. It can also be used as power input for somealarm devices such as alarm detectors.PPower output port. It can provide power to some peripheral devicessuch as camera and alarm device. Make sure the power supply ofperipheral device shall be below 1A.2.2.5 NVR4216-I SeriesThe figure is for reference only. The actual product shall prevail.Figure 2-9Table 2-6No. Port Name Function1 Network port 10M/100M/1000Mbps self-adaptive Ethernet port. Connectto the network cable.2 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.3Alarm input port(1-4) They receive signals from external alarm source. Alarminput includes two types; NO (normal open) and NC(normal close). When your alarm input device is using external power,make sure the device and the NVR have the sameGND.GND. Alarm input ground port.NO C One NO activation output group. (On-off button).CTRLControllable power supply output. Control the output of theon-off button alarm relay. It controls the alarm device withthe presence or absence of voltage. It can also be used aspower input for some alarm devices such as alarmdetectors.P Power output port. It can provide power to some peripheral
