| UTP Video Transmission Technology |
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Twisted pair cabling is a form of wiring in
which two conductors are wound together for the purposes of canceling out
electromagnetic interference from external sources and crosstalk from
neighboring wires. Unshielded twisted pair (UTP) cabling is the most common cable used in computer networking. It is a variant of twisted pair cabling. UTP cables are often called ethernet cables after Ethernet, the most common data networking standard that utilizes UTP cables. Unshielded Twisted-Pair (UTP) (Cat 5, Cat 6) structured cabling permits many communication protocols to reside in the same wire bundle. Examples include voice, data, and CCTV video and control. Benefits of structured UTP cabling include: Advantages It is a thin, flexible cable that is easy to string between walls. Physically smaller than coax Most modern buildings come with CAT 5 UTP already wired into the wall outlets or at least run between the floors. Because UTP is small, it does not quickly fill up wiring ducts. Better interference rejection than coax UTP is less expensive than dedicated coax or fiber Color-coded cabling Easiest media to install and reconfigure UTP is extremely easy to terminate Due to the proprietary technique of rejecting noise and interference different signals can reside in the same wire bundle with ringing telephones, Ethernet, 24VAC, RS-422 or RS-485 data, multiple video signals, etc. Unlike coax, it can also reside in high-noise environments, such as elevator traveling cables, or near fluorescent lights, radio transmitters, motors or generators. UTP Compared to Coax Video Total interference immunity Most models have built-in Surge Suppression Active models have Ground Lifting Active models have built-in Distance Equalization control for crisp video at all distances Transmission distances up to one mile or more UTP Compared to Fiber UTP is a lower cost solution at most distances and applications Simple termination and installation Installation tools, test equipment, and labor are less expensive The SPV-111V is a CE and FCC approved video transceiver that converts a video signal to be reliably transmitted on UTP cabling and visa versa. Its attractive price and realized benefits has made the SPV-111V instant acceptance by installers of CCTV systems. It is possible to carry video signals over a distance of 600 m. The SPV-111V is a passive transceiver as it does not require any power. It is small and can fit in most camera housings. It is easy to install. It has a built-in impedance couple device and noise filter for exceptional interference immunity for? |
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