Copyright 2000-2010 Kenneth M. Chipps Ph.D. www.chipps.com Switched 56K Last Update 2010.01.17 1.2.0 Copyright 2000-2010 Kenneth M. Chipps Ph.D. www.chipps.com
Objectives of This Section Learn What Switched 56K is Where Switched 56K is used Copyright 2000-2010 Kenneth M. Chipps Ph.D. www.chipps.com
Copyright 2000-2010 Kenneth M. Chipps Ph.D. www.chipps.com Context Layer 1 Network Type WAN Copyright 2000-2010 Kenneth M. Chipps Ph.D. www.chipps.com
Copyright 2000-2010 Kenneth M. Chipps Ph.D. www.chipps.com What is Switched 56K Switched 56K which is also called DSA – Digital Switched Access is a fully digital old style dial backup line As a dialup line, the user only pays for the time used It is rarely used anymore But some are still in place I assume A slow speed circuit Copyright 2000-2010 Kenneth M. Chipps Ph.D. www.chipps.com
Copyright 2000-2010 Kenneth M. Chipps Ph.D. www.chipps.com Operation This line operates as a standard digital data circuit just like a T1 line It is often just a channel out of a T1 circuit We will cover its operation there Copyright 2000-2010 Kenneth M. Chipps Ph.D. www.chipps.com
Copyright 2000-2010 Kenneth M. Chipps Ph.D. www.chipps.com Speeds The only speed is 56Kbps Copyright 2000-2010 Kenneth M. Chipps Ph.D. www.chipps.com
Copyright 2000-2010 Kenneth M. Chipps Ph.D. www.chipps.com Current Use I doubt there is any current use In the past it connected small sites to a collection node to send small amounts of data on an intermittent basis Copyright 2000-2010 Kenneth M. Chipps Ph.D. www.chipps.com