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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
All the physical layer control codes in 8B10B codes are included in 64B65B codes
and recreated at the other end of the link.
The advantage of GFP-T is that it transparently preserves the end-to-end 8B10B
physical layer signaling with a reduced overhead of only 1.5% as opposed to 25%.
Moreover, there is no need to wait for the whole frame to be received before
encapsulation and thus reduces the transport latency.
GFP frames are usually further encapsulated in SONET or OTN frames.
Ethernet speeds increase by multiple of 10 from generation to generation. How-
ever, SONET signal rates increase by multiples of 4. The lowest SONET rate,
OC3, is 155 Mb/s.
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Publisher Resources

ISBN: 9780123741721