Rear Panel; Installation Connections Sketch Map (Below Just As The 4Ch Dvr For Example, Specifically Please Refer To Practical Product); Audio And Video Input And Output Connections; Video Input Connections - gigamedia GGM CCKIT2C Mode D'emploi

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2.4 Rear panel

Audio input / Audio output
Network interface
Video output
VGA output
USB interface
Video input
2.5 Installation connections sketch map

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 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 camera signal stable and credible
The camera 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 camera 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 transmit by
fiber to insure the signal quality.
The video signal line should be away from the electro magnetic Interference and other equipments signal lines. The high
voltage current should be avoided especially.
Insure the connection stable and credible
The signal and shield lines should be firm and connected credible which avoid false and joint welding and oxidation.
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