October 2018
Intermediate to advanced
555 pages
17h 33m
English
Content preview from Principles of Synchronous Digital Hierarchy
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Transmission Media for PDH/
SDH and OFC Technology
The transmission of plesiochronous digital hierarchy (PDH) and synchro-
nous digital hierarchy (SDH) signals is possible on any of the prevalent
media, i.e., copper wire pairs, coaxial cables, radio, or optical ber, as the mul-
tiplexing technologies and hierarchies are totally independent of the media
type. However, as the data rates increase, the higher bandwidth media, i.e.,
optical ber, emerges as the natural choice. In fact, SDH has been designed
with optical ber cable (OFC) in mind, and thus, OFC is naturally best suited
for SDH and high-rate PDH signals. As has been se ...
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