Introduction to SDH

Course Overview

Quick Course List

SBI specialises in customised training and development for organisations and their internal company requirements (with a minimum group size of 8 students).

We do not offer public, open courses.

Learn about SDH and its role in building broadband service provider networks.

SONET/SDH today has become the fundamental technology for optical transport systems in telecommunication service providers’ networks. This Introduction to SDH course provides an understanding of the key objectives of SONET/SDH. It explains the SDH hierarchy and related terminology. The shapes, sizes, and formats of the SDH STM-N frames are explained. The course also defines the concepts and applications of section, line, path, and VT path, plus the features and benefits of SDH ring topologies such as the automatic protection switching features of SDH. The various types of SDH network equipment is also covered. While the emphasis is on SDH, several key aspects of fibre optics and DWDM are discussed to give a complete picture.

What you will learn

  • Identify the major limitations of the PDH network
  • Outline the advantages of using the SDH
  • Describe the principles of the SDH multiplexing structure
  • Illustrate the various SDH equipment and network topologies
  • Understand SDH Transmission Hierarchy
  • Explore SDH Architectures and Applications
  • Understand Digital Signal Synchronization
  • Understand Protection Switching

Who Should Attend

  • Anyone who is involved in implementing, administering or working with SDH networks
  • Engineers involved in the development or design of SDH and optical networks
  • Industry consultants providing support or services in SDH network environments
  • Anyone looking to expand their understanding of SDH and DWDM
  • IT Professionals planning and implementing an SDH network
  • Anyone involved in building, operating or managing broadband service provider networks

Course Overview

Lightwave Fundamentals

Single mode and multimode fibre types
LEDs and lasers

Introduction

Synchronisation and clocking
Plesiochronous digital hierarchy (PDH)
Synchronous digital hierarchy (SDH)

SDH frame structure

The basic SDH frame structure
Basic Rates
  • STM-1, STM-4, STM-16 and STM-64

SDH multiplexing

Containers and Virtual containers
Higher rate SDH

SDH layered architecture and overhead

Section overhead
  • Regenerator section overhead
  • Multiplex section overhead
Path overhead

SDH Vs. SONET

Similarities
Differences
Interoperability

SDH pointers

Pointers and frequency / phase alignment

SDH network elements

Regenerator
Terminal multiplexer
Add/drop multiplexers - ADM
Digital Cross-Connects - DCS
Grooming

SDH network topologies

Hub
Mesh
Ring

Automatic protection switching

Overview of protection switching
1+1 Protection
1:N Protection

Synchronization and timing

Stratum clocks
Primary reference clock
Hierarchical timing distribution

Next generation SDH

Generic framing procedure (GFP)
Virtual concatenation (VCAT)
Link capacity adjustment scheme (LCAS)

DWDM Fundamentals

Frequency vs. wavelength
WDM and DWDM Overview
Evolving DWDM
DWDM Applications and Deployment

DWDM Architecture and Products

DWDM and SDH
DWDM and ATM
DWDM and IP