Title :
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
fDate :
28 Nov- 2 Dec 1994
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;
Conference_Titel :
Global Telecommunications Conference, 1994. GLOBECOM '94. Communications: The Global Bridge., IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-1820-X
DOI :
10.1109/GLOCOM.1994.513206
