DVR User Manual
9
2-6 Audio and video input and output connections
2-6-1 Video input connections
The video input port is BNC connector plug. The demand of input signal is PAL/NTSC BNC
(1.0VP-P, 75Ω).
The video signal must be according to the stated standard which has the high signal to noise ratio,
low aberration and low interference. The image must be clear and has natural color in the
appropriate brightness.
Ensure that the transmission line is stable and credible
The video transmission line should adopt high quality coaxial pair which is chosen depending on the
transmission distance. If the transmission distance is too far, it should adopt shielded twisted pair,
video compensation equipment and transmit by fiber to ensure the signal quality.
The video signal line should be away from the electro magnetic Interference and other equipment
signal lines. The high voltage current should be avoided especially.
Ensure the connection is stable and credible
The signal and shield lines should be firm and connected credible which can avoid false and joint
welding and oxidation.
2-6-2 Video output connections and options
The video output is divided into PAL/NTSC BNC (1.0VP-P, 75Ω) and VGA output (selective
configuration).
When you replace the monitor by the computer display, there are some issues to notice.
1. Do not stay in the turn-on state for a long time.
2. Keep the computer display normal working by demagnetizing regularly.
3. Stay away from the electro magnetic Interference.
TV is not a credible replacement as a video output. It demands reducing the use time and control the
power supply and the interference introduced by the nearby equipments strictly. The usage of low
quality TV can lead to the damage of other equipments.
