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Electronic Locking Devices.

Electronic Locking Devices

Author: John L. Schum Publisher: Butterworths, 80 Montvale Avenue, Stoneham, MA 02180; 1988, 259 pages, hardback: $24.95 Reviewer: Patrick Finnegan; Chief of Intrusion Detection Systems, Access Control Division of the US Army Technical Surveillance Countermeasures School; Member of the ASIS Standing Committee on Physical Security

Electronic Locking Devices is an excellent presentation of the devices available today. The book is an outstanding primer for the novice and a good reference for anyone in security. Schum presents the basic components of electronic locking systems in easy-to-understand concepts and does not dwell excessively on advanced technical ideas.

Design concepts are skillfully explained and include detailed, practical applications. The text is easy to read, the writing is interesting, and the presentation effective. This book provides a comprehensive look at electronic locks and should appeal to a wide range of readers.

Electronic Locking Devices is devoted to the design of electronic locks and locking systems. The progression of information is logical and thorough, and figures and diagrams are clear and concise.

Schum opens with background on locks in general, furnishing an excellent lead-in for the remainder of the book. His explanations of electric circuits provide detailed information on electrical systems and will help most security personnel understand basic circuitry.

The book details numerous electromagnetic and mechanical locks and electric strikes and explains their operating characteristics. Other topics covered include the operation of transformers, relays, and door-monitoring devices as they relate to electronic locks.

The steps in building complete electronic door-locking systems are also included, along with diagrams that show the function and operation of system components. The diagrams are particularly useful to the novice working with electronic locks. They also do a good job of summing up the information provided earlier in the book.

The chapter on troubleshooting is devoted mostly to using a volt/ohm multimeter as a troubleshooting tool. The chapter provides a good explanation of the use and operation of a multimeter. However, it gives limited information on troubleshooting an electronic lock or access control system and could have been omitted. Actual troubleshooting information is contained at the end of preceding chapters rather than summarized here.

Schum's goal was to provide a reference to help security professionals solve problems, and he has achieved it. The information in Electronic Locking Devices is presented in a clear, concise, and easy-to-understand format. The appendixes are useful and practical guides to electronic locks. They also include further information on the subject and related topics such as building and electrical codes.

Security professionals responsible for locking and securing doors will find this book both informative and helpful. Electronic Locking Devices is a valuable reference, and no security professional's library is complete without it.
COPYRIGHT 1990 American Society for Industrial Security
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 1990 Gale, Cengage Learning. All rights reserved.

Article Details
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Author:Finnegan, Patrick
Publication:Security Management
Article Type:Book Review
Date:Oct 1, 1990
Words:451
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