Just How Do Cable Tv and Fiber Optics Work?
Fibre Optic cable and the old popular (coaxial or RF) cable are two different cable program technologies that may be used to distribute various solutions to end users–homes. Generally, they differ only in technical (electrical/communication) perspective. This really is mostly very important to the network providers since end users or readers do not care about the technology, they are interested in services and TV channels.There are few other ways that can be used to distribute common services like television stations via cable networks. Each has some disadvantages and advantages and needs different topology or system infrastructure.Analog TelevisionThe first cable television networks were merely an extension of the broadcasts in the atmosphere. This is executed by implementing standard aerial cable (but with lower losses) from the cable program headend to the houses. Because of the miles there were also several amplifiers at certain points to make certain expected signal levels. The communication was exclusively one-way, but later many such cable networks were extended allowing bidirectional communication necessary for access to the net through the use of systems like DocSys.This approach can be utilized with RF (coaxial) and fiber cords. Fibre optic cables will also be found in some cases to deliver the previous analog cable television. The benefit of optical system is basically because available fibers can be used by it in existing fiber optic cables and the cable losses have become low.Digital TelevisionDigital television in cable systems can be split into two totally different ways of circulation. The very first one is an equivalent to digital broadcasting and another way mainly used in fiber optic networks is IP television.Digital Cable BroadcastingThis is equivalent to analog distribution over (RF) cable but with digital signal. The same engineering (modulation) can be used as for terrestrial broadcasting but usually, you will find better systems that take into consideration particular qualities of cable systems. One common case is DVB-T system which is used in Europe for digital terrestrial movie broadcasting but cords use related DVB-C system.IP TelevisionThis is the hottest digital television circulation used with fiber optic cable systems. It indicates distributing TV channels with the Internet Protocol Address protocol which can be the spine of internet communications. Each TV programs is encoded with either MPEG-2 or MPEG-4 program and then distributed over fibre optical cable system to the domiciles. The rewards are enormous. The potential for the number of channels is pretty high, all the channels could be dispersed and secured with very high quality, it’s very an easy task to distribute HD channels, access to the web is very simple due to the IP protocol and native technology.
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