SDH add/drop multiplexer rings in Northern Ireland

Author

Ball, P.R. ; Wright, L.R. ; Gosal, S. ; Watanabe, T. ; Mitchell, E.D. ; Pennell, T.

Author_Institution

Fujitsu Europe Telecom R&D Centre Ltd., Uxbridge, UK

fYear

1993

fDate

18-21 Apr 1993

Firstpage

115

Lastpage

120

Abstract

BT Northern Ireland has introduced a network of optical fibre rings into the province as part of an EEC-assisted project known as STAR (Special Telecommunications Action for Regional Development). This network consists of three fibre rings, each equipped with STM-1 add/drop multiplexers and it represents one of the first applications of SDH rings anywhere in the world. The authors describe the SDH equipment used in the Northern Ireland STAR (NISTAR) project and discuss the protection and synchronisation strategies employed in the network. This is followed by an outline of the new testing and commissioning techniques that are required to characterise this equipment and to establish an operational ring network. Finally results of initial network performance tests are presented

Keywords

commissioning; electronic equipment testing; synchronisation; synchronous digital hierarchy; telecommunication networks; BT Northern Ireland; SDH equipment; SDH rings; STAR; STM-1 add/drop multiplexers; Special Telecommunications Action for Regional Development; commissioning techniques; network performance tests; optical fibre rings; protection; ring network; synchronisation; testing techniques;

fLanguage

English

Publisher

iet

Conference_Titel

Telecommunications, 1993. Fourth IEE Conference on

Conference_Location

Manchester

Print_ISBN

0-85296-568-0

Type

conf

Filename

224603