6
DVR Back Panels
HRG4
Position Connection/Switch Function
1Video In BNC connectors for analog video input.
2Video Out BNC connectors for video output
3Audio In RCA connectors for analog audio input.
4Line In RCA connector for audio input.
5Audio Out RCA connector for audio output.
6LAN Connector for LAN (Local Area Network).
7VGA DB15 connector for VGA output. Display local video output and menu.
8USB Connector for USB devices.
9 RS-232 Port DB9 connector for RS232 devices.
10
Alarm In Connector for alarm input.
Alarm Out Connector for alarm output.
RS-485 Port Connector for RS-485 devices. T+, T- pins connect to PTZ.
11 Power Switch for turning On/Off the device.
12 12 V 12 V DC power supply.
13 GND Ground (needs to be connected when DVR starts up).
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