[10027] in Commercialization & Privatization of the Internet
Re: MCI Cable Cut
daemon@ATHENA.MIT.EDU (Karl Denninger)
Fri Feb 4 23:04:02 1994
From: karl@mcs.com (Karl Denninger)
To: rmholt@u.washington.edu (Rose Marie Holt)
Date: Fri, 4 Feb 1994 22:03:12 -0600 (CST)
Cc: rick@uunet.uu.net, com-priv@psi.com
In-Reply-To: <Pine.3.89.9402041740.A5107-0100000@stein1.u.washington.edu> from "Rose Marie Holt" at Feb 4, 94 05:08:20 pm
> For my monthly Stupid Question:
>
> What's T-1? What's T-3? Is there a T-2? As a future single private
> user or user with a few colleagues, is this something I need to know?
>
> Simple answers, please. Acronyms must be put through the metal detector.
T1 = 1.544Mbps, or 24 64kbps channels (plus 8Kbps signalling overhead)
The 64kbps channel (usually 56kbps delivered to the customer; again, there
is that pesky 8Kbps overhead) is what is called a "DS0" and is the basic
rate of telephone communications. Your voice normally travels over one of
these (ie: you can handle 24 telephone conversations on a T1)
T3 = 45Mbps, or about four and a half Ethernet connections. Actually quite
a bit more, since a T3 is bidirectional while an Ethernet is shared access
(only one station can transmit at a time)
--
Karl Denninger (karl@MCS.COM) | MCSNet - Full Internet Connectivity (shell,
Modem: [+1 312 248-0900] | PPP, SLIP and more) in Chicago and 'burbs.
Voice/FAX: [+1 312 248-8649] | Email "info@mcs.com". MCSNet is a CIX member.
