What is ADSL (Asymmetric Digital Subscriber Line)? Definition and Uses

Definition ADSL (Asymmetric Digital Subscriber Line)

ADSL is an acronym that comes from the English language and refers to the expression Asymmetric Digital Subscriber Line. In our language, this phrase can be translated as Asymmetric Digital Subscriber Line.

c  Which works transmitting the digital information in an analog way through the cable of symmetrical copper pairs. In further words: the user connects to the network using their telephone line, but with broadband (unlike the old dial-up Internet connections, which used a modem to transmit the data).

In the case of the ADSL connection, a router is responsible for modulating the signals with the data in a frequency band that is higher than the band used in telephone communications. A filter, on the other hand, allows the signals not to suffer distortions, separating the already modulated signals from the telephone signal.

ADSL Uses

ADSL connectivity, in this way, works with three communication channels on the same cable. One channel allows data to be downloaded; another is used to send the data, and a third channel enables the development of conventional telephone communications.

The ADSL line is “asymmetric” since the download capacity is higher than the data upload capacity. This is due to the use of resources that are linked to the habitual behavior of Internet users, who usually download more data than they send to the network.

Well until the late 90s many users had the already archaic Internet connection, which offered a maximum download speed of 56 kbps. And only a few began to savor other technologies, such as fiber optics, which is the standard. And nowadays it is ADSL. Since it is offered at very accessible prices and achieves a more than sufficient performance for the average customer.

But what happens in rural areas? The answer, at the end of 2016, is truly alarming, especially for those who have never lived in the countryside. In many cases, such as being disseminated, there is only one satellite Internet service, whose characteristics are very poor and its price , exorbitant.

The borders of ADSL

It is not normal for ADSL to reach the outskirts of cities. Since, the expensive infrastructure is necessary that apparently is not justified by the small number of customers who live far from the asphalt.

The practice of connecting to the Internet through a satellite service is very different from what we can have with ADSL. Above all, the ping is considerably slower; this means that the computer takes too much time to communicate with a particular server, such as your own Internet provider, and start exchanging data packets, which makes it impossible to perform activities as normal as playing online since the phase shift is unsustainable.

Another negative aspect of this and other alternatives to ADSL, such as 3G and 4G, is the limit of data: although we are accustomed to controlling our use on the mobile, Internet at home is different, since we can use it to buy programs, movies, and music, and their weight can be considerable.

Living far from areas with ADSL coverage, brings too many complications for those people who need to make intensive use of the network. Either because of the monthly traffic limit or the slowness of the ping.