DSL White Papers
Digital Subscriber Line
Overview Digital Subscriber Line (DSL) technology is a modem technology that uses existing twisted-pair telephone lines to transport high-bandwidth data, such as multimedia and video, to service subscribers. The term xDSL covers a number of similar yet competing forms of DSL, including ADSL, SDSL, HDSL, RADSL, and VDSL. xDSL is drawing significant attention from implementers and service providers because it promises to deliver high-bandwidth data rates to dispersed locations with relatively small changes to the existing telco infrastructure. xDSL services are dedicated, point-to-point, public network access over twisted-pair copper wire on the local loop ("last mile") between a network service provider (NSP's) central office and the customer site, or on local loops created either intra-building or intra-campus. This chapter covers the characteristics and operations of ADSL and VDSL.
| Publisher | Cisco Systems | File Format | HTML & PDF |
|---|---|---|---|
| Date Published | June 1999 | Downloads | 2 |
| Format | White Papers | ||
| Topics | |||
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