Lucent Technologies DDM-2000 OC-12 - A Sonet Overview

Table of Contents
Issue 1 December 1997 A-i
A
A SONET Overview
Overview A-1
History A-1
Basic Purpose A-2
Technical Overview A-2
■ SONET Signal Hierarchy A-2
■ SONET Layers A-4
■ SONET Frame Structure A-6
■ Section Overhead A-6
■ Line Overhead A-7
■ Path Overhead A-8
STS-1 Path Overhead A-8
VT Path Overhead A-9
■ SONET Multiplexing Procedure A-10
■ SONET Demultiplexing Procedure A-12
■ SONET Digital Multiplexing Schemes A-14
Asynchronous Multiplexing A-14
Synchronous Multiplexing A-15
■ Virtual Tributary Signals A-15
■ Concatenated Mode A-16
SONET Interface A-17
■ SONET Payloads A-18
■ Higher Rate Transport A-19
Conclusion A-19