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A SONET Overview
Issue 1 December 1997 A-17
SONET Interface 1
The SONET interface (Figure A-11) provides the optical midspan meet between
SONET network elements. A SONET network element is the hardware and
software that processes one or more layers of the SONET signal.
Figure A-11. SONET Interface
Tributaries
Digital
Element
Network
SONET
and maintenance functions
Overhead channels defined for interoffice operations
[Synchronous Transport Signal (STS-1)]
Family of standard rates at N X 51.84 Mb/s
Standard optical interconnect at SONET interface
SONET Interface
Tributaries
Digital
Element
Network
SONET