UP: AHD Down: CVI Left: TVI Right: CVBS. Video Output: HD-AHD (1080p), (AHD, TVI, CVI, CVBS). Default signal is HD AHD. If you are using other DVR, you need to switch to other signal firstly. Default signal is HD AHD, How to shift AHD/CVI/TVI/CVBS Signal by OSD?.
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