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1995-01-05
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Date: Tue, 16 Aug 1994 11:39:42 MDT
From: Rob Slade <roberts@decus.ca>
Subject: Book Review: "Understanding Telephone Electronics" by Bigelow
BKUNDTEL.RVW 940608
SAMS Publishing
11711 N. College Ave., Suite 140
Carmel, IN 46032-5634
317-573-2500 317-581-3535
800-428-5331 800-428-3804
or
201 West 103rd St.
Indianapolis, IN 46290
317-581-3718 fax: 317-581-4669
"Understanding Telephone Electronics", Bigelow, 1991, 0-672-27350-0,
U$24.95/C$31.95
One of my professors was fond of remarking that a computer scientist
was one who sat at a terminal connected to a wire that disappeared
into the wall. Not only did the computer scientist not know what was
on the other side of the wall, he or she did not *want* to know. For
those involved in data communications, life is not quite that simple.
There is a requirement to deal with hardware, both at the simple level
of cables and phone cords, and up through modems, multiplexers and
PADs. Most, however, stop short at the phone jack. The wires go off
into the wall, and not only do the data comm types not know what is on
the other side of the wall ...
Some, however, may actually want to know. There are remarkably few
sources outside of professional or engineering references. Thus, it
is very heartening to find that this book is not merely a source of
information, but is written clearly and presented well. Illustrations
are illustrative and organization is thorough. (The end of chapter
quizzes are so simple as to be a waste of time, but I suppose you
can't have everything.)
Logically divided chapters lay out the basics and details of the
telephone system; telephone set; electronic speech, dialling and
ringing circuits; integrated telephone circuits; electronics in the
central office; network transmission; and wireless and cellular
phones. We data mavens are remembered with chapters on digital
transmission, modem and facsimile. The material is lucid and, at all
points, within reach of the intelligent novice.
This is, by no means, written specifically for the data professional.
Anyone with an curiosity for what is inside a telephone will be
interested. Electronics buffs may find enough detail in the
schematics to try and build telephones; even quite advanced ones; at
home.