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When you are looking to connect to the internet for the first time, or you’re seeking out high-speed internet access in a new location, inevitably you will be presented with the option of DSL service as well as a few other types of internet. Even though you probably have seen advertisements for DSL on TV, in the mail, and maybe even online, advertisements seldom share enough information for you to base a buying decision on. Here are some of the need-to-know basics of DSL service to help you make your decision on which type of internet service you will choose.
DSL - what it is
DSL stands for Digital Subscriber Line, and it is the name given to the copper wiring that allows DSL subscribers to receive high-speed internet. These wires originate from a telephone company’s central office (CO), and allow faster data transfer speeds than their analog lines, which provide dialup internet service alongside voice service.
DSL service vs. cable internet
DSL service is limited in terms of how far a high-speed internet signal can reach. On average, if a telephone subscriber is 15,000 feet or more from the central office, they will be unable to receive high-speed internet due to degradation of the signal transferring through the copper wire. Cable internet, however, is less affected by distances in part because of the nature of cable internet lines, and also because cable internet service is delivered in a completely different manner -- it is offered through local ‘nodes’ as a shared resource amongst local subscribers whereas DSL service offers a dedicated internet line directly from the telephone company.
DSL speed differences
Traditionally, cable internet service is capable of offering faster internet speeds than DSL service can. This is mostly due to the differences in the makeup of cable lines vs. DSL lines -- cable wires can transfer data at a much higher rate, and the internet signal through cable lines does not degrade as quickly as it does through DSLs copper wiring.
Availability of service
DSL is available in more areas than cable internet is. The reason for this is purely economics -- DSL runs through telephone lines, which already run through the city. In order to provide cable internet service where there are no existing cable lines, a cable company would need to run lines throughout the city, which is exorbitantly expensive. Undoubtedly, some locations may never have cable internet service simply because cable companies would have a hard time recouping their investments. Because DSL works with the existing telephone infrastructure, it is available in many locations that offer landline telephone service.
DSL service is a good option for those looking for high-speed internet, and there’s a good chance that if you live in, or are moving to, a semi-populated city, you’ll have the option of buying DSL from your telephone company.
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