SDSL

Broadband Internet Glossary

Broadband Internet — SDSL

 

 

 

 

 

 

Argos Home

 

 		 
 


Information on SDSL

SDSL (Symmetric digital subscriber line) allows broadband data services to be carried on conventional copper pair telephone cables. SDSL is a single-pair alternative to HDSL, providing data rates (or speed) up to 1 Mbps duplex (i.e. for both upstream and downstream traffic).
     The term "symmetric" in ADSL refers to the difference in uplink and downlink capacities; the same capacity is provided for the downlink as for the uplink. This means that the same number of tones are allocated for downlink data as for uplink data.
     SDSL is based on an adaptive, multi-tone modulation system. Each tone carries a part of either the uplink or the downlink bitstream. Because the bitstreams are split across a number of tones, the symbol rate on the link is much less than the bit rate.


Other topics in our resources on Broadband Internet related to SDSL include: 
 
  • SDSL Broadband (Symmetric Digital Subscriber Line Broadband)
    		•

     

    Please contact Argos Press if you wish to propose new words or phrases to be added to our glossary. © Argos Press Pty Ltd, Canberra, 2003-2004. All rights reserved. Please contact Argos Press Pty Ltd for information on licensing our content (such as this glossary entry on SDSL).