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User Manual
Interface Operation Manual
VIDEO IN Connect(simulation) video input devices, standard BNC interface
VIDEO OUT Connect monitor, local video signal and menu output
AUDIO IN Connect audio input , standard BNC interface
AUDIO OUT Connect audio devices, local audio signal output
VGA Connect VGA
MIC Connect mike for voice intercommunication
USB Connect USB, backup files
ETHERNET Connect Ethernet device, such as HUB
ALARM- RS-485 Connect RS-485
12V DC POWER Choose AC voltage 220V/110V through switch
ON/ OFF Power supply switch
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