ADSL

Asymmetric Digital Subscriber Line (ADSL) is a type of Digital Subscriber Line technology, a data communications technology that enables faster data transmission over copper telephone lines than a conventional voiceband modem can provide. It does this by utilizing frequencies that are not used by a voice telephone call. A splitter, or DSL filter, allows a single telephone connection to be used for both ADSL service and voice calls at the same time. ADSL can generally only be distributed over short distances from the central office, typically less than 4 kilometres (2 mi), but has been known to exceed 8 kilometres (5 mi) if the originally laid wire gauge allows for further distribution.

ADSL connection provides users with high-speed broadband to surf the web with blazing speed, but several factors you may be unaware of might affect the latter. This is why, from time to time, you should perform a speed test for measuring you ADSL connection performance and see if it’s working properly. Another matter of importance to take into account as regards ADSL connections is that ISP (internet service providers) hardly ever delivers the speed they promised. Therefore, we provide a speed test that will allow you to measure the speed of your internet connection, thus making make sure your ISP is not cheating your speed. These tests are becoming more and more used since internet subscribers nowadays do not fully trust their ISP. Some of them cheat user’s speed and you can now prove it too by using our speed test.

Digital Subscriber Line (DSL) is a family of technologies that provides digital data transmission over the wires of a local telephone network. DSL originally stood for digital subscriber loop. In telecommunications marketing, the term Digital Subscriber Line is widely understood to mean Asymmetric Digital Subscriber Line (ADSL), the most commonly installed technical variety of DSL. DSL service is delivered simultaneously with regular telephone on the same telephone line. This is possible because DSL uses a higher frequency. These frequency bands are subsequently separated by filtering.

The data throughput of consumer DSL services typically ranges from 256 Kb/s to 40 Mbit/s in the direction to the customer (downstream), depending on DSL technology, line conditions, and service-level implementation. In ADSL, the data throughput in the upstream direction, (i.e. in the direction to the service provider) is lower, hence the designation of asymmetric service. In Symmetric Digital Subscriber Line (SDSL) service, the downstream and upstream data rates are equal.