ADSL2 initialize faster, takes approximately 3 sec, and connects quickly.ĪDSL2 supports channelization thus by allocating 64kbps channels of ADSL2, we can transport digital voice signal directly via DSL by using PCM modulation. Due to improved modulation technique ADSL2 offers around 12 Mbps download bandwidth and 1 Mbps upload bandwidth. ADSL2 is referred as ADSL2 annex A or just ADSL2. ADSL speeds vary from 1 Mbps to 20 Mbps depends on various parameters including the distance of the user from the DSLAM (Digital Subscriber Line Access Multiplexer, which is a hardware that connects all the DSL users) and the line conditions.ĪDSL2 is a form of ADSL offering more bandwidth than ADSL. Mostly people use more downloads than uploads in Internet. It was designed by considering human activity on internet. Asymmetric means the download bandwidth and upload bandwidth are not the same in ADSL. ADSL offers high speed access over the same existing copper network in parallel with telephone line. ADSL (Asymmetric Digital Subscriber Line) is a fixed line broadband technology, it is a form of DSL.
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