Broadband FAQ: Answers To Basic Questions Regarding Broadband

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By Alex Tesla


* What's broadband?

In the internet world, broadband refers to the process of sending and receiving info at very high speeds through a connection that's always on. With broadband access there is always a corresponding usage fee.

Broadband access also means that you can surf to any web site you want faster than with a dial-up process, as web pages load more rapidly. Broadband internet can provide you the advantage in accessing better quality multimedia files like music and movies. Downloading programs, files, and e-mail attachments with broadband may be done in minutes instead of hours.

* What are the different types of broadband?

You will find differing types of broadband internet access available however they depend on the location of the subscriber. Probably the most generally used type of broadband access is the ADSL or asymmetric digital subscriber line. Other types of broadband access are cable modem, satellite, and wi-fi.

* What's DSL?

DSL stands for Digital Subscriber Line, which refers to the kind of technology that uses ordinary phone lines to send and receive info on the internet at higher frequency than normal phone usage. A DSL connection can handle both the data and the voice signals at the same time. Therefore your phone service isn't disrupted when you use the web.

DSL connection speeds depend on the distance between the subscriber and the provider. DSL technologies have two major kinds: ADSL internet access requires a fast downstream connection but slow upstream connection, and Symmetric DSL demands high speed connections in both directions.

* What's cable?

A cable is used in broadband services and refers to the transfer of internet access to subscribers by cable television. Generally, a cable is made up of bundles of various optical fibers that can carry larger amounts of data than phone line over long distances without impacting signal frequencies.

* What are ADSL, IDSL, HDSL, and SDSL?

ADSL means Asymmetric Digital Subscriber Line, which has a data rate that ranges from 544 kbps up to 6.1 Mbps in downstream basis, while in upstream basis it goes from about 16 up to 640 Kbps. The distance limit of ADSL for 1.544 Mbps is about 18,000 feet, for 2.048 Mbps is 16,000 ft, for 6.312 is 12,000 feet, and for 8.448 is 9,000 ft. Usually, ADSL is used for web access, downloading music and video, and local area networking.

IDSL or ISDN Digital Subscriber Line is fairly an application of a wrong name of DSL modem since DSL is familiar to ISDN information rate and services that to about 144 Kbps. IDSL with its symmetric function is best when traveling up to six miles; however, IDSL is not provided by ADSL companies. With likeness to ISDN, the data increases to 144 kbps by sing control channels.

HDSL or High bit-rate Digital Subscriber Line is the first version of DSL that will be used for wideband transmission within the business place and between communication providers and subscribers. The primary function of HDSL is its symmetrical function, in which the same quantity of bandwidth is accessible in both directions.

SDSL or Symmetric Digital Subscriber Line is the same as HDSL; however, it simply has a single line that carries 1.544 Mbps in the U.S. and Canada or 2.048 Mbps in Europe, that flow in each direction on the duplex line.






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