67Port Name FunctionNC5 NO3～C3, Group 4：port NO4～C4, Group 5:port NO5, C5, NC5).Output alarm signal to thealarm device. Please make sure there is powerto the external alarm device. NO: Normal open alarm output port. C: Alarm output public end. NC: Normal close alarm output port.A RS-485communicationportRS485_A port. It is the cable A. You can connect tothe control devices such as speed dome PTZ.B RS485_B.It is the cable B. You can connect to thecontrol devices such as speed dome PTZ.CTRL 12V / Controller 12V power output. It is to control theon-off alarm relay output. It can be used to controlthe device alarm output. At the same time, it canalso be used as the power input source of somedevices such as the alarm detector.+12V / +12V power output port. It can provide the power tosome peripheral devices such as the camera or thealarm device. Please note the supplying powershall be below 1A.Network port 10M/100M/1000Mbps self-adaptive Ethernet port.Connect to the network cable.eSATA eSATA port External SATA port. It can connect to the device ofthe SATA port. Please jump the HDD when there isperipheral connected HDD.USB2.0 port USB2.0 port. Connect to mouse, USB storagedevice, USB burner and etc.RS-232 RS232 debugCOM.It is for general COM debug to configure IP addressor transfer transparent COM data.HDMI High DefinitionMedia InterfaceHigh definition audio and video signal output port. Ittransmits uncompressed high definition video andmultiple-channel data to the HDMI port of thedisplay device. HDMI version is 1.3. The two HDMIports to output video from different video sources.VGA VGA video outputportVGA video output port. Output analog video signal.It can connect to the monitor to view analog video.2.2.17 NVR42V-8P SeriesThe interface is shown as in Figure 2-39.
