Basic HTML version of Foils prepared 5 February 98

Foil 97 xDSL Digital Subscriber Line Technology

From Introduction to Networking Technologies CPS640 MultiMedia and Networking -- Spring Semester 1998. by Roman Markowski
1 IDSL - ISDN Digital Subscriber Line
  • symmetric
    • 128 Kbps in each direction
2 SDSL - Single-line Digital Subscriber Line
  • not adopted by vendors
  • one twisted pair
  • symmetric, full-duplex
    • 1.544 Mbps or 2.048 Mbps in each direction
  • max distance 10,000 feet
3 VDSL - Very-high-bit-rate Digital Subscriber Line (known as BDSL)
  • asymmetric
    • downlink: 12.96-51.84 Mbps
    • uplink : 1.6 - 2.3 Mbps
  • max 4,500 - 1,000 feet
  • applications: High definition TV, multimedia
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