Tips on installing a CCTV system
The prospect of drilling holes through the external walls of your home to run power and video cable for a camera may at first seem only feasible only for the most accomplished technician. However, with a little forethought it can be remarkably simple.
POSITION OF CAMERAS
The modern bullet-type camera is no bigger than your little finger and can easily be located under or on the fascia/soffit boards where the roof line meets the wall. This location also provides good shelter from wind and rain and can be shaded from excessive sunlight. The height of the camera position will give a good area of view and minimize the risk of vandalism.
Another advantage of this location is cabling. It is usually easy to run the cables into the loft from this position. Many houses have a small ventilation gap between the roof tiles and the external wall, or a small hole may be drilled in the fascia board to gain access to the loft.
CABLING
It is usually easy to pick up mains power in the loft, or at least if additional cabling is required, it is now internal. Wireless transmission can be used for the video signal with the receiver being placed next to the monitor or recorder (TV, VCR, PC etc.) Do this , and the installation is complete.
A hard-wired system can almost be as easy to install. Locate the TV aerial down-lead that may be in the loft or run down the outside of the house. It is usually possible to run the CCTV camera video cable alongside the aerial cable, which will lead directly to the TV.
A neat method of connection is to use an RF modulator. This little box changes the camera’s video output to an RF output. This means you can route the CCTV images down the existing TV aerial down-lead and view on the TV/VCR as if it were another channel. If the house is fitted with a TV aerial distribution systems, this method of connection allows the camera pictures to be viewed on all TV sets.
OTHER IDEAS
Consider positioning some cameras indoors. Point each camera at the exterior doors. Use a motion detector or PC-based system to active the camera when a door is opened. The advantage of this type of system is that you do not need a traditional burglar alarm and sensors. The output of the system can be connected to an alarm.
Note – Compiled from SecurityToday magazine.
July 16th, 2010 at
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July 17th, 2010 at
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