• Phone System
• Phone System Offers
  • Mitel Telephone System
    • Mitel 5570 Touchphone
    • Mitel Office Navigator
    • Mitel 5360
    • Mitel 5340
    • Mitel 5330
    • Mitel 5324
    • Mitel 5312
    • Mitel 5304
    • Mitel 5302
    • Mitel 5224
    • Mitel 5212
  • Avaya Phone System
    • IP Office Phone System
    • Avaya IP 500
  • Hosted Phone Systems
  • Telephone Systems
• Servers
  • Blade Servers
  • Citrix Servers
  • Exchange Servers
  • Server Virtualisation
  • Small Business Servers
  • Terminal Services
  • Vmware
  • Windows 2003 Server
  • Windows 2008 Server
• Networks
  • Implementation
  • Cisco
  • Netgear
  • POE
  • HP
  • Desktop PCs
  • Thin Clients
• Cabling
  • CAT5 Cabling
  • Fibre cabling
• Connectivity
  • Wireless Connectivity
  • Leased Lines
  • ADSL
  • SDSL
• Backups
  • Backups
• Security
  • Bloxx Web Content Filtering
  • Sonicwall Spam Filtering
  • Sonicwall Firewall
• Home

You are here: Home > Networks > SDSL

Networks

Network Design
Network Implementation
Cisco Solutions
HP Solutions
Netgear Solutions
Power Over Ethernet
Thin Clients
Desktop PCs
ADSL
SDSL
Leased Lines
MPLS
CAT5 Cabling
Fibre-Optic Cabling
Wireless Connectivity

SDSL

Symmetric Digital Subscriber Line (SDSL) is a Digital Subscriber Line (DSL) variant with E1-like data rates (72 to 2320 kbit/s). It runs over one pair of copper wires, with a maximum range of about 3 kilometers or 1.86 miles. The main difference between ADSL and SDSL is that SDSL has the same upstream data rate as downstream (symmetrical), whereas ADSL always has smaller upstream bandwidth (asymmetrical).

Unlike ADSL, it can't co-exist with a conventional voice service on the same pair as it takes over the entire bandwidth. It typically falls between ADSL and T-1/E-1 in price, and it is suitable for small and medium businesses who may host a server on site, (eg a Terminal Server or Virtual Private Network) and want to use DSL, but don't need the higher performance of a leased line.

To find out whether you can get SDSL and what speeds are available to you please contact Systems-Supported on 01252 333888.