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Question by Stephen McGuffey posted 26 Jan 2006 | | | Concerning UTP cable (Cat 5) being installed for CCTV applications, what are the inherent problems with Radio Frequency Interference for cable Runs between 3000 and 5000'. In particular I have a pending installation in a trucking yard which uses radio transmission between all trucks, the dispatch trailer and the main office. Due to the distances I am recommending fiber optic cableing to the customer however I could use additional information to justify the change.
When using cat5 at the above listed distances in CCTV applications with PTZ cameras, could joystick comand delays be noticed?
Should surge/lightning protection units be installed as required by EIA/TIA standards for data cabling? The infrastructure consists of UG conduit with the cabling terminating on cameras at ~15' on wood telephone poles.
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Answer by Joseph Golan posted 26 Jan 2006 | Dear Stephen,
First, all links of category 5 are limited to 90 meters (295') I would think there are a few problems with a 3,000 to 5,000 foot run: Attenuation; splices; signal strength, data corruption.
I believe you are in need of a professional CCTV designer/engineer to overcome your situation and achieve the desired operation of the system.
Sincerely,
Joseph Golan, RCDD
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