Duplex system configuration in passive double star system

Author

Okumura, Yasuyuki ; Aoyagi, Shin´ichi ; Maekawa, Eiji

Author_Institution

NTT Opt. Network Sys. Labs., Kanagawa, Japan

Volume

3

fYear

1994

fDate

28 Nov- 2 Dec 1994

Firstpage

1930

Abstract

The paper proposes a new passive double star (PDS) duplex configuration that enables either single or duplex wiring in customer buildings. The automatic protection switching algorithm using this duplex configuration is also discussed. The paper also proposes an orderly and quick round trip delay control algorithm of plural optical network units (ONUs) of the PDS system. The control algorithm is required in the activation process of an automatic protection switching, since the new duplex configuration requires a cold stand-by mechanism in the transmission equipment. This algorithm uses only one shared channel by ONUs to minimize the waste of transmission capacity

Keywords

asynchronous transfer mode; delays; optical fibre subscriber loops; telecommunication control; wavelength division multiplexing; PDS system; activation process; automatic protection switching algorithm; cold stand-by mechanism; customer buildings; duplex system configuration; duplex wiring; passive double star system; plural optical network units; round trip delay control algorithm; shared channel; single wiring; transmission capacity; transmission equipment; Asynchronous transfer mode; Automatic control; B-ISDN; Control systems; Environmental economics; Optical fiber networks; Optical network units; Protection switching; Subscriber loops; Wiring;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 1994. GLOBECOM '94. Communications: The Global Bridge., IEEE

Conference_Location

San Francisco, CA

Print_ISBN

0-7803-1820-X

Type

conf

DOI

10.1109/GLOCOM.1994.513206

Filename

513206