ADSL is a typical form of a DSL line that performs a function of faster data transmission through the copper wires as compared with a regular modem. It uses the frequencies that are not used by a telephone call and perform its function. The splitter allows a single connection to be utilized for ADSL as well as for voice calls. ADSL can be distributed at smaller distances from the main office. Usually this distance is around 4 km but can be extended to 8 km. Read it all..