GB9701591D0 - Communications system - Google Patents

Communications system

Info

Publication number
GB9701591D0
GB9701591D0 GB9701591A GB9701591A GB9701591D0 GB 9701591 D0 GB9701591 D0 GB 9701591D0 GB 9701591 A GB9701591 A GB 9701591A GB 9701591 A GB9701591 A GB 9701591A GB 9701591 D0 GB9701591 D0 GB 9701591D0
Authority
GB
United Kingdom
Prior art keywords
network
routers
communications system
whole
different nodes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
GB9701591A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British Telecommunications PLC
Original Assignee
British Telecommunications PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by British Telecommunications PLC filed Critical British Telecommunications PLC
Priority to GB9701591A priority Critical patent/GB9701591D0/en
Publication of GB9701591D0 publication Critical patent/GB9701591D0/en
Priority to PCT/GB1998/000169 priority patent/WO1998033287A1/en
Priority to EP98900923A priority patent/EP1013012A1/en
Priority to AU56728/98A priority patent/AU5672898A/en
Pending legal-status Critical Current

Links

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)

Abstract

A communications system includes an optical network which has a star topology. A number of nodes are connected to the periphery of the network. A number of routers are located at the hub of the network, and route traffic between different nodes depending on the wavelength of received optical signals. Each of the routers is connected in parallel to the different nodes and has a capacity which is less than that of the network as a whole. The total capacity of the routers is greater than that of the network as a whole. Switches may be provided to select alternative routes via the network and the routers in the event of a component failure. The system is suitable for use in a telecommunications core network.
GB9701591A 1997-01-27 1997-01-27 Communications system Pending GB9701591D0 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB9701591A GB9701591D0 (en) 1997-01-27 1997-01-27 Communications system
PCT/GB1998/000169 WO1998033287A1 (en) 1997-01-27 1998-01-20 Communications system with star topology
EP98900923A EP1013012A1 (en) 1997-01-27 1998-01-20 Communications system with star topology
AU56728/98A AU5672898A (en) 1997-01-27 1998-01-20 Communications system with star topology

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9701591A GB9701591D0 (en) 1997-01-27 1997-01-27 Communications system

Publications (1)

Publication Number Publication Date
GB9701591D0 true GB9701591D0 (en) 1997-03-19

Family

ID=10806618

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9701591A Pending GB9701591D0 (en) 1997-01-27 1997-01-27 Communications system

Country Status (4)

Country Link
EP (1) EP1013012A1 (en)
AU (1) AU5672898A (en)
GB (1) GB9701591D0 (en)
WO (1) WO1998033287A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69913488T2 (en) * 1998-01-03 2004-10-28 British Telecommunications Public Limited Company Communication system with star / ring topology
FI990836A (en) * 1999-04-15 2000-10-16 Nokia Networks Oy Method for realizing optical cross-coupling and cross-coupling device
CA2269649A1 (en) 1999-04-22 2000-10-22 Telecommunications Research Laboratories Protection of routers in a telecommunications network
GB2396086C (en) * 2002-12-03 2007-11-02 Vetco Gray Controls Ltd A system for use in controlling a hydrocarbon production well
EP1560457B1 (en) * 2004-01-30 2008-01-30 Technische Universität Berlin A hybrid optical network and a method of routing data packets in a hybrid optical network
EP2859676B1 (en) 2012-05-04 2024-01-31 Deutsche Telekom AG Method and device for constructing and operating a modular, highly scalable, very simple, cost-efficient and sustainable transparent optically-routed network for network capacities of greater than 1 petabit(s)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58177041A (en) * 1982-04-10 1983-10-17 Nec Corp Optical transmission system
IT1185902B (en) * 1985-09-10 1987-11-18 Face Standard Ind VOICE AND DATA DISTRIBUTION SYSTEM WITH MULTINODE OPTICAL FIBER STAR NETWORK
US5043975A (en) * 1989-06-29 1991-08-27 Digital Equipment Corporation High bandwidth network based on wavelength division multiplexing

Also Published As

Publication number Publication date
EP1013012A1 (en) 2000-06-28
AU5672898A (en) 1998-08-18
WO1998033287A1 (en) 1998-07-30

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