from Wiktionary, Creative Commons Attribution/Share-Alike License

  • Symmetric Digital Subscriber Line
  • A communications system (or part thereof) characterised by moderately high speeds, the same in each direction


Sorry, no etymologies found.


  • Common consumer-oriented implementations include Asymmetric DSL (ADSL) where the upstream and downstream transfer rates are unequal, and Symmetric DSL (SDSL) where the two rates match.

    DSL in SMA?

  • I don't want to host the tracker myself, because all I've got is a 512K SDSL, and I'm afraid it might get swamped should the file be mentioned on, say, Slashdot.

    June 8th, 2005

  • Checked into getting DSL here, tried Speakeasy's web interface: we're 13,000 feet from the nearest point, and they list our option as 384k up/384k down SDSL as our only option well, they also list a complete T1 as an option, but that's far too pricy even now.

    scorpion update

  • The newcomer is Blue Earth Valley Communications (Bevcomm), and they offer a 512K (guaranteed) SDSL service for $55/month - with static IP.

    September 24th, 2002

  • Managed Communications are the market innovators in bonding ADSL and bonding SDSL using expertise we have developed over the past 8 years.

    The Earth Times Online Newspaper

  • Jarak sentral SMDS ADSL hingga pelanggan maks. 5,5 km. xDSL  Symetrical Digital Subsriber Line (SDSL) memiliki kapasitas yang sama (simetris) TVRO untuk downstream dan upstream sebesar 160 kbps - 1,544 Mbps pada PLC jarak maks. 7,2 km.

    Recently Uploaded Slideshows

  • It's very common to bond an SDSL line with an ADSL2 line to force your connection to run over different hardware at the exchange (for resiliancy).

    thinkbroadband news feed

  • Based in Nottingham, Managed Communications provides data networks through bonded ADSL and SDSL lines to its base of approximately 800 SME customers.

    The Earth Times Online Newspaper

  • Each day they built an entire DSL infrastructure for voice, data and video; 150 SDSL lines ran into DSLAMs connected to an ATM backbone.

    CRN Australia - News -

  • "BAE Systems use ADSL and SDSL bonded together at Portsmouth Dockyard [to provide improved upstream and downstream access]," White explained.

    Original Signal - Transmitting Tech


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