Traditional Culture Encyclopedia - Traditional festivals - Can telephone lines be used as video surveillance lines? If what equipment can be added, how far can it be transmitted?
Can telephone lines be used as video surveillance lines? If what equipment can be added, how far can it be transmitted?
See what kind of thread you use. If it is stranded wire and the wire diameter is thicker than 0.5, twisted-pair transmitter can be used, with passive 3~400 meters and active 6~ 1200 meters adjustable. How far it can be transmitted depends on your line and installation environment. If you use multi-core cow hair, it is estimated that it can be 200 meters with a video amplifier, no problem. In fact, parallel lines can also use twisted-pair transmitters, at least I didn't find any obvious difference between them.
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