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From Greek computers to aircraft carriers made of ice - a collection of 50 of the best stories from Justin Pollard’s Eccentric Engineer column in E&T magazine.
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Topic Title: police cctv cameras on outside of buildings long runs Topic Summary: Created On: 27 May 2010 08:32 PM Status: Post and Reply |
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 27 May 2010 08:32 PM
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does anyone know what is required in terms for the cable which feeds the cameras? eg is it of the coax type or is it cat 5 or fibre optic. How would the camera get it's power?
the reason i ask is that there was a camera on our building with one cable running to it. We've just found out the cable was damaged so it did not work - now the installers have run another cable, they say its an add on to increase the teleconectivity of the existing cable - i dont believe them. They did not have permission to run the new cable across the building either - i think they have just turned up - cable tied the new cable to the old defunct one and buggered off |
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31 October 2012 04:12 AM
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MOst of them are Fiber Optic because they are resistable...
------------------------- [url=Link removed/]security cameras[/url] | [url=Link removed/cctvblog/]what is cctv security[/url] |
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01 November 2012 12:08 PM
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You can run coaxial cable with power being fed up the centre conductor using a Bias T. Distance is limited, mind you with the quality of CCTV it doesnt really matter.
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