CompuLan Center dba/Digital IDView Technologies
12000 Ford Road, Suite 110
, Dallas TX 75234
11
2.6 Audio and video input, and output connections
2.6.1 Video input connections
The video input port is a BNC connector plug. The demand of the input signal is PAL/NTSC
BNC(1.0V
P-P
,75Ω).
The video signal must be accorded with the state standard which has a high signal to noise ratio, low
aberration and low interference. The image must be clear and have natural color in the appropriate
brightness.
Ensure that the vidicon signal is stable and credible
The vidicon should be installed in the appropriate location where it is away from backlighting and low
illumination or adopts the better backlighting and low illumination compensation.
The ground and power supply of the vidicon and the DVR should be shared and stable.
Ensure that the transmission line is stable and credible
The video transmission line should adopt to a high quality coaxial pair which is chosen by the
transmission distance. If the transmission distance is too far, it should adopt a 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 equipments signal
lines. A high voltage current should be avoided especially.
Ensure the connection is stable and credible
The signal and shield lines should be firm and connect credible in order to avoid false and joint welding
and oxidation.
2.6.2 Video output connections and options
The video output is divided into PAL/NTSC BNC (1.0V
P-P
, 75Ω) and VGA output (selective
configuration).
When replacing 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 normally working by demagnetizing it regularly.
3
、
Stay away from the electro magnetic interference.
TV is not as credible a replacement as a video output. It demands reducing the use time and control of
the power supply as well as control of the interference introduced by the nearby equipments strictly. Also the
creep age of low quality TV can lead to the damage of other equipments.
2.6.3 SDI Video Input
Only part models of the 960H series support SDI encode for 1080P.