24SN Icon Name Note9 NO1～NO3 Alarm output port 1～5 3 groups of alarm output ports.(Group 1 ： port NO1 ～ C1,Group2:port NO2～C2,Group 3:port NO3～C3）).Output alarm signal to the alarmdevice. Please make sure there ispower to the external alarm device. NO：Normal open alarm output port. C：Alarm output public end.C1～C3A RS-485 communicationportRS485_A port. It is the cable A. You canconnect to the control devices such asspeed dome PTZ.B RS485_B.It is the cable B. You canconnect to the control devices such asspeed dome PTZ.GND Ground10 Power input port Input DC 12V.11 USB port USB port. Connect to mouse, USBstorage device, USB burner and etc.12 HDMI1 High Definition MediaInterface 1High definition audio and video signaloutput port. It outputs the same videosource as VGA. It supports 4K resolutionoutput and supports mouse operation andcontrol.Please note when the HDMI outputresolution is 4K, the VGA output stops.13 HDMI2 High Definition MediaInterface 2High definition audio and video signaloutput port. It max supports 1080Presolution. Its video source can bedifferent from the HDMI1/VGA. It supportsdigital channel output.14 Network port 1000M Ethernet port15 VGA VGA video output VGA video output port. Output analogvideo signal. It can connect to the monitorto view analog video.2.2.2 HCVR84XXL-S3/HCVR88XXS-S3/ HCVR88XXS-URH-S3/XVR88XXSSeriesThe HCVR84XXL-S3 rear panel is shown as below. See Figure 2-6.Here we use HCVR8416L-S3 as an example.
