Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!uwm.edu!cs.utexas.edu!uunet!ingr!b11!goodloe
From: goodloe@b11.ingr.com (Tony Goodloe)
Newsgroups: comp.dcom.lans
Subject: Re: Ethernet 4-repeater limit
Summary: picking a nit (and throwing in a little more)
Message-ID: <6365@b11.ingr.com>
Date: 30 Oct 89 15:24:05 GMT
References: <2549@aecom.yu.edu> <9850@blia.BLI.COM>
Organization: Intergraph Corp. Huntsville, AL
Lines: 13

In article <9850@blia.BLI.COM>, ted@blia.BLI.COM (Ted Marshall) writes:
> of coax because the signal propigates slower through the coax.

From the standard:

"The propogation velocity of the coaxial cable is assumed to be  0.77c
minimum ..." and "A link segment .. end-to-end propogation delay of 2570
ns and shall be terminated in a repeater set at each end." 

I thought the prop velocity through fiber was ~.65c, but I can't find it
anywhere. Can comebody help?

tony