Internet Bandwidth

T1 (business)

  • Dedicated digital line installed
  • Agreement to repair within a fixed amount of time
  • Consistent uploading and downloading speed
  • Speed can be increased by purchasing additional lines

Cable (residential or business)

  • Uses existing cable television infrastructure
  • Speeds may be inconsistent depending on number of concurrent users
  • Speeds can be increased by purchasing business-class service

DSL (residential or business)

  • Uses existing telephone lines and is “always on”, unlike dial-up
  • Speeds tend to be more consistent and dependable than Cable
  • Speeds can be increased by purchasing business-class service
bandwidth - graphic

Bandwidth Range Comparison

T1       1.54Mbit/s           1.54Mbit/s per line
Cable    768-1000kbit/s       768-10000kbit/s
DSL      64-512kbit/s         512-6000kbit/s
Dial-up  24kbit/s             56kbit/s

Network Bandwidth


  • Old or brittle cabling can lead to lower speeds and dropped data between devices.  Newer cabling to meet the standards of upgraded equipment will result in higher speeds throughout the network.  Cat5 cable runs should be a maximum of 328 feet.  Fiber optic cable or wireless repeaters may be needed for longer distances.


  •  Switches with high-speed connection capabilities increase internal speed.


  • Newer workstations come with high-speed network interface cards (NICs).  Replacing old NIC cards in aging workstations can increase the speed in which workstation’s receive data.