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Note: This section is out of date and no longer maintained.
It is retained for the value of any residual information contained in it.

family of standards

HDSL, SDSL, ADSL, VDSL comprise the main DSL standards. Strictly speaking, the acronym DSL is actually an early low speed standard, and the 4 letter DSL acronyms are the standards in use today, but DSL has become a blanket term for all these technologies. Recently, the internation standards union settled on one consumer standard for DSL, called G.lite, also known as ADSL lite.


HDSL

High bit-rate Digital Subscriber Line - Modems on either end of one or more twisted wire pair that deliver T1 speeds. At present, this requires two lines.


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