1 / 22

ADSL Technology

Project. On. ADSL Technology. Broadband. Broadband= ‘Broad’ + ‘Band’ Transportation of multiple signals & traffic simultaneously. Medium- OFC, twisted Cu pair, wireless. Before broadband, Dial-up was in use. Cable modem introduced in 1997. Became familiar in 2001.

umed
Télécharger la présentation

ADSL Technology

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Project On ADSL Technology

  2. Broadband • Broadband= ‘Broad’ + ‘Band’ • Transportation of multiple signals & traffic simultaneously. • Medium- OFC, twisted Cu pair, wireless. • Before broadband, Dial-up was in use. • Cable modem introduced in 1997. Became familiar in 2001..

  3. Digital Subscriber Lines(DSL)

  4. What is DSL.? • High Internet Access over existing telephone lines. • Utilizes bridge or router at customer location connects to DSLAM. • The DSLAM connects and we are connected to internet. • DSL technology introduced in 1989.

  5. Features of DSL • Fast Access. • Constant Connectivity. • Big-business bandwidth at small-business price. • Uninterrupted phone services.

  6. Introduction to ADSL • Enables high speed data transfer in same Cu telephone lines. • Utilizes the frequencies that is not used by telephones calls. • A splitter allows single telephone lines to be used for both. • At exchange line terminates at DSLAM.

  7. Operation

  8. ADSL capacities • The "upstream" and "downstream" pipelines have different capacities. • ADSL broadband can transfer data at rates of 1.5 to 9 Mbps when receiving data. • The ability of ADSL to send data, is limited to between 16 to 640 Kbps.

  9. ADSL Strength • Inexpensive • Widely available • High speed downloads and surf. • Always connected, do not monopolize phone lines. • Multiple user access without degradation

  10. ADSL weakness • Not available everywhere, say above 5.5 km from exchange. • Speed is affected as distance increases. • Web conferencing, web hosting, VoIP services are not well suited to ADSL.

  11. Alternatives • IDSL • SDSL • VDSL

  12. IDSL • ISDN Digital Subscriber Lines • Speed 144kbps. • Not available in all countries

  13. SDSL • Symmetric Digital Subscriber Line • Up and Downstream Bandwidth are same. • Narrow cable supports only data, not analog calls. • Speed- 1.54 - 2.04 Mbps • Max distance- 3 km. (10,000 fts) • Needs separate copper pair.

  14. VDSL • Very-high-bit-rate DSL. • Faster than ADSL . • Speed • Cu pair • Down- 52Mbps, Up-16Mbps • Coaxial cable • 85 Mbps Up & Down

  15. Thank You

  16. Made by- • Pratik Sadegaonkar • Rahul Yadav • Rahul Marar • Rajesh Gavel • Jaimala Jain

More Related