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Optical Fiber Telecommunications VB, 5th Edition
book

Optical Fiber Telecommunications VB, 5th Edition

by Ivan Kaminow, Tingye Li, Alan E. Willner
July 2010
Intermediate to advanced content levelIntermediate to advanced
928 pages
33h 42m
English
Academic Press
Content preview from Optical Fiber Telecommunications VB, 5th Edition
With the advent of SONET, growth of private line and IP services, the legacy
transport stack became inadequate. During a transitional period, SONET rings
were introduced into the core network. However, examining Figure 13.6, the
impracticality of using SONET rings in a large core segment is obvious. Further-
more, early restoration studies showed SONET rings to be economically inferior to
mesh restoration with DCS-type equipment, such as the Intelligent Optical Switch
(IOS) [9]. Upon deployment of the IOS, the SONET ring layer was relegated to
reaching smaller COs (i.e., edge of the core segment) and is essentially capped in
most core network. The
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Publisher Resources

ISBN: 9780123741721