Download or read book Data Communications Networking Devices written by Gilbert Held and published by . This book was released on 1992 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt: Expanded and updated to provide readers with a detailed understanding of the properties, operations and applications of devices used in constructing a data communications network. New features include extensive coverage of LANS; the latest information on modems; in-depth examination of multiplexes including the Hayes command; recent data on the operation and utilization of bridges and routers plus much more.