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From: alan@columbia.UUCP
Newsgroups: comp.dcom.lans
Subject: request for broadband info
Message-ID: <4663@columbia.UUCP>
Date: Thu, 4-Jun-87 15:14:49 EDT
Article-I.D.: columbia.4663
Posted: Thu Jun  4 15:14:49 1987
Date-Received: Sat, 6-Jun-87 09:47:41 EDT
Reply-To: alan@columbia.edu (Alan Crosswell)
Organization: Columbia University
Lines: 30
Keywords: broadband

In conjunction with the installation of a new phone system at
Columbia, a single-cable mid-split broadband system is being
installed.  No particular means of using the broadband was specified
in the phone system RFP -- simply that the cables, amplifiers,
splitters, etc. should be installed with the "details" of using the
system to be worked out later.  Given the time between an initial RFP
(a year or two ago) and actual completion of a project this size
(about a year from now), this was probably a good idea.

We are looking at using the broadband for fast computer networking (10
Mb 802.4?) as well as a (cheaper?) alternative to using the data
capabilities of the phone switch for terminal service.  The switch is
a ROLM CBX 9000AE which will of course require data modules in each
phone (around $200+) plus data modules to connect to host CPU ports
plus the CPU ports themselves.  Obviously having those hosts on the
network (most are on ethernet now) with telnet servers will at least
save the cost of the host RS-232 ports.

Now that I've bored you with the background information, I'd like to
solicit descriptions of what you have done with broadband at your
site.  Pointers to good sources of education (e.g. books, papers,
courses) would be greatly appreciated.  Also, please do not be shy
about saying what it costs.  I've heard several times about how
expensive broadband modems are.


Thanks.

Alan Crosswell
alan@columbia.edu