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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
not usually pre-installed and pre-connected into the patch panel. Even if the patch
panel is manually cross-connected, no splicing is usually required end-to-end. The
difficulty, as one can observe in Figure 13.5, is that the fiber spans (edges) can
sometimes run together on portions of the route, called a shared-risk-link group
(SRLG) originally defined in Ref. [5]. Thus, the planner must be knowledgeable
about the actual fiber paths of these fiber spans to ensure that restoration objectives
are met for whatever higher-layer network link (or service) is being provisioned.
SRLGs are addressed again later in the discussion about network restoration.
Figure 13.5 illustrates only a simplified picture of the common metro layers. The
dotted lines signif ...
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Publisher Resources

ISBN: 9780123741721