IC Realtime HDVR-MX0402-1U5MP-AI2-WEB Product Manual - Page 23

3.2.3 1U No. Port Name Function 1 Video input port Connects to analog camera to input video signal. 2 Audio output port Outputs audio signal to the devices such as the sound box. 3 MIC IN Two-way talk input port which receives analog audio signal output from the devices such as microphone and pickup. 4 Audio input port Receives audio signal output from the devices such as microphone. The port is used for general COM debug to configure IP address 5 RS-232 debug COM or transfer transparent COM data. 4 groups of alarm input ports (Group 1: port 1 to port 4; Group 2: Alarm input port port 5 to port 8; Group 3: port 9 to port 12; Group 4: port 13 to port 16). These ports receive the signal from the external 6 1-16 alarm source. There are two types: NO (normal open) and NC (normal close). 7 VGA port 8 Network port 9 HDMI port 10 USB port 11 Power input port When your alarm input device is using external power, please make sure the input device and the DVR connect to the same ground. Ground terminal. Outputs analog video data to a connected display using a VGA cable. RJ45 port, connects with an Ethernet cable for network access. High definition audio and video signal output port. The port outputs the uncompressed high-definition video and multi-channel audio data to the connected display with HDMI port. Connects to the external devices such as keyboard, mouse, and USB storage device. Inputs power. No. Port Name Function ● 5 groups of alarm output ports (Group 1: port