The PFM820 controller allows switching compatible cameras between the following systems: AHD, HD-CVI, HD-TVI, CVBS
Changing the AHD / HD-CVI / HD-TVI / PAL standard is done by holding down the Enter button and then the corresponding button with the given standard
Remark! The device is designed to work only with Dahua cameras, set at a resolution of up to 2Mpx