SDH        Technology

2 days

Background
This section concentrates on telecommunications basics, from analogue voice to digital PDH networks and frame structures.

Why SDH?
Discusses why networks have evolved from a plesiochronous architecture to a synchronous architecture. Terminology used in synchronisation and in SDH multiplexing is addressed at this stage.

Lower Level
This section concentrates on the lower level of the SDH multiplexing hierarchy. The multiplexing structure and overhead for each stage is covered in detail. Where applicable, practical scenarios are discussed to give the delegates an insight into realistic implementation.

Higher Level
This section deals with the multiplexing and mapping of signals into the higher level of the SDH payload. The path overhead associated with this higher level payload is studied in detail, with practical implementations discussed.

Section Overheads
The addition of Regenerator Section OverHead (RSOH) and Multiplexer Section OverHead (MSOH) is addressed within this section. Again, practical implementation of the associated overhead is discussed.

ATM
The Physical transport mechanism for Asynchronous Transport Mode (ATM) is SDH. This section gives a brief introduction to ATM technology and concentrates on how ATM may be transported within SDH.

Network Management
An overview of SDH network element management concentrating on alarm generation within the SDH environment.

SONET
A brief outline of the Synchronous Optical NETwork used in North America, providing a comparison of terminology and technology between SDH and SONET.

Physical Interface
This sections deals with physical line codes, transmission media, fibre problems and fibre manufacture.

DWDM
An outline of Dense Wavelength Division Multiplexing (DWDM) - the high speed optical network.