Symmetric Digital Subscriber Line

Symmetric digital subscriber line (SDSL) can have two meanings:

  • In the wider sense it is a collection of Internet access technologies based on DSL that offer symmetric bandwidth upstream and downstream. It is considered the opposite of asymmetric digital subscriber line (ADSL) technologies where the upstream bandwidth is lower than the downstream bandwidth.
  • In the narrow sense SDSL is a particular DSL variant that supports data only on a single line and does not support analog calls.

Read more about Symmetric Digital Subscriber Line:  SDSL Technology

Famous quotes containing the word line:

    “Where were you when I laid the foundation of the earth? Tell me, if you have understanding. Who determined its measurements—surely you know! Or who stretched the line upon it? On what were its bases sunk, or who laid its cornerstone when the morning stars sang together and all the heavenly beings shouted for joy?”
    —Bible: Hebrew, Job 38:4 -7.

    God, to Job.