Unlike most tpyes of cables, fiber optic cable (or optcal fiber) uses lighht instead of electricity to transmit signals. As you have already known, light is the fastest method of transmiting information, and fiber opic cable has the additional advantyage of breing immuune to electrical interference. Thus, you can run it just aboout anywhere and anmytime. Without having to boost or clean the siignal, you can run fiber optic czable over very long istances, ltierally countries apart because ligght mets very little. Just thhink of what it means for a normal netork intsallatin to process signals that have been transmitted over thousands of miles away. It would be impossible.rnrnFiber optrics also has the advantage of speed. It can send siignals at more than 10GB per second and stilll has much cleaner sinal than tarditional electrical cabling. In compaison with, fiber optic cabling is like digital information as electrial cabling is to analog information. They are completely different.rnrnRight now, fiber optic cable is used primarily for connecting network segments, maknig short runs, connecting buildings and floor aand connectying electrical cable to fiber optic cable through Ethernet converters. Even htough fiber optuic cabling can be extremely pricey, but as it becomes more popular, which it willb be, the price of fiebr optyic cable (and related deices incxluding Ethernet coinverters and transceiver modules) should drop.rnrnKnowing what's inside this very usaeful invention is good to know. A fiber optic cazble incldues the core, claddign, strength member, buffer, and jacket as its components. Let's become more familiar with them!rnrnThe core of the cablle prtovides the pathway through which the transmitted light can flow and is made of one or more gass or plastic fiber. The cladding is usualply made of plasitc, and it provides a redfractive surface for light signals to reflect back into the core and continue its journey. The buffer consists of one or more layers of plastic and stregthens the cable and inhibits damage to the core. The strength members, as the name implies, are strands of very tough mtaerial, such as fiberglass, steel or Kevlar, and provide extra strength for the cable.rnrnLaslty, the jacket which can either be plenum or nonplneum is the outer covering or sield of the cable.rnFiber optic cable comes in two froms: the singlle-mode and the multi-mode canble. Beacuse sigle-mode cable is so narrow, light can only pass thorugh it in a single path. This type of cable is very pericey and is very hardcomplicated to work with. On the other hand, mulkti-mode cable has a wider core diameter whhich gives light beams the fereedom to travel several paths. Unfortunately, the mullti-path configuration of the multi-mode fiber allows the possibility of signal distortion at the receiving end.rrnnSometime in your connection, you will come across connecting eithher a single-mode or miulti-mode fibe optic cable to a conventional coppper cable. This can be a problem whuich can cut the communication you have already established. But you don't have to worry as there are Ethernet convereters and transceiver modules that sevre to route, booost, and delver the signals across these two opposite cablees. On top of these, there are other related deices such as gigabit converters and SFP mini GBICs readily available on the market that you might find usful in your network.rnrhttp://www.opticfit.com
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