IC Realtime AVR-816S User Manual

Contents

IC Realtime AVR-816S User Manual Manual pdf 30 page image

HD AVS Standalone DVR User’s Manual21operation of the camera.Guarantee stability and reliability of the transmission lineBTT TBPlease use high quality, sound shielded BNC. Please select suitable BNC modelaccording to the 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,especially the high tension current.Keep connection lugs in well contactBTTTBThe signal line and shielded wire should be fixed firmly and in well connection. Avoid dryjoint, lap welding and oxidation.BT TT3.4.2 Connecting Video OutputVideo output includes a TBNC(PAL/NTSC, 1.0VP- P， 75Ω）output, a VGA output and aHDMI 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 toreduce the working hour and control the interference from power supply and other devices.The low quality TV may result in device damage.3.5 Connecting Audio Input & Output, Bidirectional Audio3.5.1 Audio InputBNC port is adopted for audio input port.Due to high impedance of audio input, please use active sound pick-up.Audio transmission is similar to video transmission. Try to avoid interference, dry joint,loose contact and it shall be away from high tension current.3.5.2 Audio OutputThe audio output signal parameter is usually over 200mv 1KΩ (BNC). It can directlyconnect to low impedance earphone, active sound box or amplifier-drive audio outputdevice.If the sound box and the pick-up cannot be separated spatially, it is easy to arousesqueaking. In this case you can adopt the following measures: Use better sound pick-up with better directing property. Reduce the volume of the sound box. Using more sound-absorbing materials in decoration can reduce voice echo andimprove acoustics environment. Adjust the layout to reduce happening of the squeaking.3.6 Alarm Input and Output ConnectionPlease read the followings before connecting.