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From: bob@alsys1.aecom.yu.edu (Bob Lummis)
Newsgroups: comp.dcom.lans
Subject: Acceptance test for 10BASE-T cable installation
Message-ID: <299@alsys1.aecom.yu.edu>
Date: 9 Sep 90 23:19:11 GMT
Organization: Albert Einstein College of Medicine, NY
Lines: 33

I am planning the installation of an 802.3 backbone in several campus
buildings.  It will included extensive unshielded twisted pair runs, and
110-type wiring blocks.  I have to go through a formal bidding process
and have the entire campus wired in one job.

I am now trying to figure out how to write a bid document, and subsequently
a contract, that will guarantee a good cable plant.

I could require a series of tests on the cable after it is installed that
will demonstrate that each of the requirements in the 10BASE-T draft
standard are individually met, but that isn't very practical unless there is
a document that describes such a series of tests in practical terms that a
contractor can be expected to use in the field (i.e., type of test instrument,
how to hook up, what to read, etc.).

Or maybe I could specify certain 10BASE-T equipment that should be attached
to the cable plant and successfully used (whatever that means) for a certain
period of time.  That seems too hard, and at the same time not stringent enough.

Or maybe I should specify all of the component types myself and spell out in
fine detail exactly how they should be installed.  This is not good enough for
our business people because it means I am relying on statements from
equipment manufacturers as to the performance of their equipment, even tho they
cannot be held accountable for the success of our particular installation.

Bear in mind that what I need to produce is a written document that
will guarantee (legalistically) a correct cable plant the first time
(i.e., without any extra cost additions or changes following installation).

Any advice from those who have done it?  Any sample bid documents I could
look at?

bob@aecom.yu.edu (Bob Lummis)