Evolveo DETECTIVE S4CIH7D, Руководство пользователя

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2.5 Full Connectivity Diagram
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(1.0V
P-P
,75Ω).
The video signal must be accorded with the state 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.
Insure the video signal stable and credible
The video should be installed in the appropriate location where is away from
backlighting and low illumination or adopts the better backlighting and low
illumination compensation.
The ground and power supply of the video and the DVR should be shared and
stable.
Insure the transmission line stable and credible
The video transmission line should adopt high quality coaxial pair which is
chosen by the transmission distance. If the transmission distance is too far, it
should adopt shielded twisted pair, video compensation equipment and