October 2018
Intermediate to advanced
555 pages
17h 33m
English
Content preview from Principles of Synchronous Digital Hierarchy
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493Introduction to Optical Transport Networks
because the OCh switching can take place due to the presence of optical
cross-connect. This layer is similar to the multiplex section layer of SDH.
The OUT, and consequently, the ODU, can be dropped or inserted at any
of the OMS nodes. However, the OPU/ODU carries a point-to-point client
signal, and hence, it may cross several OMS sections before dropping. This is
equivalent to the path layer of SDH.
16.5 OTN Domain Interfaces
OTN denes two types of interfaces in the networks.
16.5.1 Intradomain Interface
This type of interface is provided within the domain of a single network
operator having the ...
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