elength and frequency, sound, 8/4 Wavelet coding, 57/29 Wiring closets, 33/4 Z formal software design, 25/5 Wavenumber, 7/3 Word interleaving, TDM, 21/4 Z screen cable, 15/5 Waves, Word spotting, voice processing, 37/8 z-transforms, 2/11-16 wave equations, 2/3 WSF (Work Station Function), TMN, convolution summation property, waveforms and frequency, 10/3-5 16/17, 16/18, 16/19 2/14-15 angular rotation, 10/4 delay property, 2/13-14 see also Electromagnetic waves; inverse, 2/15-16 Sky waves; Space waves; Surface waves X.25 packet switching standard, 40/6, linearity, 2/13 WDM (Wavelength Division 40/10-13, 54/3-15, 55/4 queuing theory, 3/9 Multiplexing), 42/27 networking, 56/4, 56/14 Z-wave, in ionosphere, 9/5 Weatherfax, 60/4 see also Fast packet switching; Packet Zenith attenuation, 9/15-16 see also Facsimile (Fax) switching Zero code suppression, TDM, 21/9 Weibull distribution, 1/8-9 X500 directory services, 38/6 Zeroes, frequency response diagram, 2/15 Weighting intermodulation noise, FDM, X-radiation, 6/20 ZVEI signalling tones, 46/10 VINCE COUGHLIN EQUPMENT FUNDAVENTALS AND NETWORK STRUCTURES TELECOMMUNICATIONS Equipment Fundamentals and Network Structures TELECOMMUNICATIONS Equipment Fundamentals and Network Structures VINCE COUGHLIN Manager Network Support Citicorp International Communications, Inc. VAN NOSTRAND REINHOLD COMPANY Copyright © 1984 by Van Nostrand Reinhold Company Inc. Softcover reprint of the hardcover 1st edition 1984 Library of Congress Catalog Card Number: 84-3521 ISBN-13: 978-94-011-6055-1 e-ISBN-13: 978-94-011-6053-7 DOI: 10.1007/978-94-011-6053-7 All rights reserved. No part of this work covered by the copyright hereon may be reproduced or used in any form or by any means-graphic, electronic, or mechanical, including photocopying, recording, taping, or information storage and retrieval systems-without permission of the publisher. Manufactured in the United States of America Published by Van Nostrand Reinhold Company Inc. 135 West 50th Street New York, New York 10020 Van Nostrand Reinhold 