SDH Networks and NOC Monitoring


  • The SDH technique features numerous functions and advantages, beginning with its very high transmission capacity
  • High capacity SDH backbone networks are the transmission infrastructure not only of legacy telephone networks, but also of packet-switched broadband networks.
  • Ethernet over SDH (EoSDH) is the latest trend in the transmission network.
  • NOC can monitor the health of transmission network.


Instructor led training. Duration: One month.

What you will gain?

After completing this course, the participant will understand about:

  • Principles of traditional FDM and PCM multiplexing of telephone channels;
  • PDH multiplexing- E1 / E3/ DS3;
  • the SDH frame structure, overhead and multiplexing schemes;
  • the SDH pointer justification mechanism; K L M concepts.
  • basics of SDH network synchronization;
  • basics of SDH network management; DCN networks;
  • Techniques and practical procedures for SDH system testing.
  • EoSDH
  • NOC Processes and Management


Basic knowledge of digital communication systems.

Who should attend?

Telecom Regulators, Service providers working in telecom field. This may also  include PDH/SDH system engineers, Network monitoring team , NOC and customer support.  The richness and depth of course topics cover a wide spectrum of practical and theoretical issues.

Practical :

Excellent lab facility is available with SDH equipments to carryout different configuration , provisioning , fault management and Monitoring. EoSDH facilities are also available.

Course outline

  1. Telecom Fundamentals
  • Over view of electrical basics.
  • Different range of frequencies – AF, VF and RF
  • dB calculations
  • Different type of transmission medias.
  • Different types of networks –Fixed, mobile , wireless
  • Analog to digital conversion of voice channel
  1. Introduction to fiber optical networks
  • Different types of fiber – SM , MM
  • Different wavelengths in optical communication
  • Link engineering in OFC communication
  • Testing of OFC links.
  1. Type of Multiplexing
  • Frequency division multiplexing (FDM) and FDM hierarchy
  • Analog/digital conversion
  • Time division multiplexing (TDM)
  • PCM telephone multiplex
  • Synchronous digital multiplexing
  • Optical multiplexing (WDM, DWDM)
  1. PDH transmission systems
  • Asynchronous digital multiplexing
  • Bit justification
  • Frame structure
  • PDH multiplexing hierarchy
  • PDH equipment
  • Drawbacks
  1. SDH transmission systems
  • Historical outline
  • ITU-T standards
  • Advantages compared to PDH
  • SDH & SONET hierarchical levels
  1. SDH frame structure
  • ETSI and ITU-T multiplexing schemes
  • Multiplexing elements
  • Examples of synchronous multiplexing
  • Pointer justification
  • Concatenation
  • Overhead
  • SDH frame for radio systems
  1. Ethernet  over SDH
  • Overview
  • LCAS
  • VCAT
  • VC12 mapping in SDH
  1. 8. SDH equipment
  • Functional schemes
  • Alarms and alarm states
  • Physical interfaces and line systems
  • Regenerators
  • Line Terminal Multiplexers, Add Drop Multiplexers (ADM) and application examples
  • Digital Cross Connect (DXC) and application examples
  • Radio relay equipment and application examples
  1. SDH network architectures
  • Overview
  • Traffic protection: line protection, ring protection, restoration in DXC networks
  • Applications
  1. Synchronization aspects in SDH networks
  • Synchronization in telecommunications
  • Timing relationships among digital signals
  • Synchronous and asynchronous transport mode
  • Network synchronization
  • Models and characterization of clocks
  1. Network Management and NOC Monitoring
  • General model of Telecommunication Management Network (TMN)
  • TMN functional architecture
  • TMN physical architecture
  • SDH network management
  • NOC processes and Monitoring.