d/lloodd11_125

meone to do just the opposite of its intended purpose...

        Note that this article is intended as a reference guide for use by
persons familiar with the basics of either LMOS/MLT or the operation of the
ARSB/CRAS (or hopefully both), because several references will be made to
information pertaining to the above systems/bureaus. I have no manuals on this
topic, all information has been obtained through practical experience and
social engineering.

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Serving Area Concepts (SAC) plan
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        In order to standardize the way loop distribution plants are set up in
the Bell System of the U.S. (and to prevent chaos), a reference standard design
was created.  For urban and suburban areas, this plan was called the Serving
Area Concepts (SAC) plan.  Basically, in the SAC plan, each city is divided
into one or more Wire Centers (WC) which are each handled by a local central
office