Title :
The evolution of SDH: a view from Telecom New Zealand
Author :
Shafi, Mansoor ; Mortimer, Barry
Author_Institution :
Telecom Auckland Ltd., New Zealand
Abstract :
The results of a preliminary study of the issues that need to be addressed for introducing SDH (synchronous digital hierarchy) are reported. A brief overview is given of the SDH multiplexing hierarchy adopted by the CCITT (International Consultive Committee for Telephone and Telegraph) and its appropriate subset for use in New Zealand. The capabilities of the various network elements needed to realize an SDH network are described. Examples of possible SDH applications in various parts of the current network are discussed, followed by a view of an evolutionary strategy.<>
Keywords :
digital communication systems; multiplexing; standardisation; telecommunication network management; topology; CCITT; SDH multiplexing hierarchy; Telecom New Zealand; evolutionary strategy; network elements; synchronous digital hierarchy; topologies; Add-drop multiplexers; Bit rate; Containers; Demultiplexing; Signal processing; Synchronous digital hierarchy; Telecommunications; Telegraphy; Telephony; Virtual colonoscopy;
Journal_Title :
Communications Magazine, IEEE
