Here is a good link for some basic T1 info. It also has links for additional info.
http://www.commweb.com/article/COM20010807S0013 Prof. Tom Lisa, CCAI Community College of Southern Nevada Cisco ATC/Regional Networking Academy Rico Ortiz wrote: > Good question, curious of the answer myself. I opened up some telcom books I > have on the shelf and the give 8k to "overhead" > but what overhead? is this signalling, framing? > > Rico > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > Kelly Cobean > Sent: Thursday, April 18, 2002 12:33 PM > To: [EMAIL PROTECTED] > Subject: How do you get that? [7:41832] > > All, > I was wondering if any of you have a good link to a site that explains > how the bandwidth is derived for T-1/T-3 circuits. What I'm looking for > specifically is how we come to 1.544 Mb/s for a T-1 that is 24x64K channels > which = 1536K, and what happens to the other 8K, and the same calculation > for a T-3. Descriptions of Robbed-bit signaling, etc., too. Thanks much > for your help. > > Kelly Cobean, CCNP, CCSA, ACSA, MCSE, MCP+I > Network Engineer > GRC International, Inc., an AT&T company Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=41879&t=41832 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]

