Dictionary of Communications Technology : Terms, Definitions and Abbreviations, Paperback by Held, Gilbert, ISBN 0471975176, ISBN-13 9780471975175, Brand New, Free shipping in the US

Most of the definitions are brief dictionary-style phrases or sentences, but several pages are provided for such topics as ANSI standards, country codes, and various protocols. Over 400 illustrations are included, most of which are wiring or other diagrams. Entries under acronyms refer to the expanded term, otherwise no cross-referencing is discernable. First published in 1989 as Data and Computer Communications and updated here from the 1996 edition. Annotation c. by Book News, Inc., Portland, Or.