Connecting Basics 314.2 Connecting to Video and Audio Input and Output4.2.1 Video InputThe video input interface is BNC. The input video format includes: PAL/NTSC BNC (1.0VP-P,75Ω).The video signal should comply with your national standards.The input video signal shall have high SNR, low distortion; low interference, natural color andsuitable lightness.Guarantee the stability and reliability of the camera signalThe camera shall be installed in a cool, dry place away from direct sunlight, inflammable,explosive substances and etc.The camera and the DVR should have the same grounding to ensure the normal operation ofthe camera.Guarantee stability and reliability of the transmission linePlease use high quality, sound shielded BNC. Please select suitable BNC model according tothe transmission distance.If the distance is too long, you should use twisted pair cable, and you can add videocompensation devices or use optical fiber to ensure video quality.You should keep the video signal away from the strong electromagnetic interference, especiallythe high tension current.Keep connection lugs in well contactThe signal line and shielded wire should be fixed firmly and in well connection. Avoid dry joint,lap welding and oxidation.4.2.2 Video OutputVideo output includes a BNC (PAL/NTSC1.0VP-P, 75Ω) output, a VGA output and HDMI output.System supports BNC, VGA and HDMI output at the same time.When you are using pc-type monitor to replace the monitor, please pay attention to thefollowing points: To defer aging, do not allow the pc monitor to run for a long time. Regular demagnetization will keep device maintain proper status. Keep it away from strong electromagnetic interference devices.Using TV as video output device is not a reliable substitution method. You also need to reducethe working hour and control the interference from power supply and other devices. The lowquality TV may result in device damage.
