BE901897A - Reseau local de communication. - Google Patents

Reseau local de communication.

Info

Publication number
BE901897A
BE901897A BE2/60639A BE2060639A BE901897A BE 901897 A BE901897 A BE 901897A BE 2/60639 A BE2/60639 A BE 2/60639A BE 2060639 A BE2060639 A BE 2060639A BE 901897 A BE901897 A BE 901897A
Authority
BE
Belgium
Prior art keywords
pilot signal
station
communication network
local communication
optical fiber
Prior art date
Application number
BE2/60639A
Other languages
English (en)
Inventor
A Dean
Original Assignee
Internat Standard Electric
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 Internat Standard Electric filed Critical Internat Standard Electric
Publication of BE901897A publication Critical patent/BE901897A/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/27—Arrangements for networking
    • H04B10/278—Bus-type networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/44—Star or tree networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optical Communication System (AREA)
  • Small-Scale Networks (AREA)

Abstract

Système de communication utilisant un réseau local. Pour éviter les collisions, chaque poste comporte des moyens pour générer un signal pilote spécifique à ce poste, lequel signal pilote est transmis à un niveau qui est faible comparé à celui utilisé pour la transmission des données. Des moyens dans chacun desdits postes reçoivent leur propre signal pilote après qu'il soit passé de l'émetteur du poste à travers une longueur de fibre optique vers le coupleur en étoile et de ce dernier par une autre une longueur de fibre optique vers le récepteur du poste, le niveau du signal pilote étant surveillé à la réception.
BE2/60639A 1984-03-08 1985-03-08 Reseau local de communication. BE901897A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08406077A GB2155718B (en) 1984-03-08 1984-03-08 Local area network

Publications (1)

Publication Number Publication Date
BE901897A true BE901897A (fr) 1985-09-09

Family

ID=10557774

Family Applications (1)

Application Number Title Priority Date Filing Date
BE2/60639A BE901897A (fr) 1984-03-08 1985-03-08 Reseau local de communication.

Country Status (6)

Country Link
US (1) US4641375A (fr)
EP (1) EP0158431A1 (fr)
JP (1) JPS611143A (fr)
AU (1) AU3911585A (fr)
BE (1) BE901897A (fr)
GB (1) GB2155718B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0216214A3 (en) * 1985-09-25 1988-06-01 Siemens Aktiengesellschaft Berlin Und Munchen Method for the automatic level adjustment in a local area network, in particular for a multiprocessor arrangement with a bus system of optical fibres, for the purpose of collision detection

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1323407C (fr) * 1986-11-25 1993-10-19 Frank Howard Levinson Recuperation de signaux lumineux
US4850045A (en) * 1987-11-02 1989-07-18 Amp Incorporated Method and apparatus for testing fiber optic hubs
EP0412220B1 (fr) * 1989-08-11 1994-03-23 Hewlett-Packard Company Emetteur-récepteur de réseau
GB8923488D0 (en) * 1989-10-18 1989-12-06 British Telecomm Optical receiver
GB2237949B (en) * 1989-11-11 1994-04-06 Stc Plc Optical networks
AU642103B2 (en) * 1990-03-22 1993-10-07 Aeg Schneider Automation, Inc. Apparatus for networking programmable logic controllers to host computers
ES2104740T3 (es) * 1991-02-11 1997-10-16 Alsthom Cge Alcatel Sistema optico de comunicaciones para la zona de conexion de abonado con amplificadores opticos.
GB2268653B (en) * 1991-12-16 1995-08-30 Motorola Inc Optical distribution system
WO1994017616A1 (fr) * 1993-01-26 1994-08-04 Inria Institut National De Recherche En Informatique Et En Automatique Installation de transmission de donnees, du type reseau radio, et procede correspondant
US5526152A (en) * 1993-09-24 1996-06-11 Gte Laboratories Incorporated Repeater-less multigigabit lightwave buses with optical amplifiers
US6204948B1 (en) 1998-07-02 2001-03-20 Ortronics, Inc. Media converter
DE50013628D1 (de) * 1999-09-16 2006-11-30 Philips Intellectual Property Netzwerk mit mehreren Netzknoten und wenigstens einem Sternknoten
DE10016829A1 (de) * 2000-04-06 2001-10-11 Philips Corp Intellectual Pty Auflösung von Medienzugriffskonflikten in Netzwerken mit mehreren Netzknoten und wenigstens einem Sternknoten

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Publication number Priority date Publication date Assignee Title
US2924703A (en) * 1957-07-12 1960-02-09 Itt Communication control system
US3325600A (en) * 1963-11-26 1967-06-13 Sylvania Electric Prod System for interconnecting a pair of separated transmitter-receivers with a common transmitter-receiver station
US3315164A (en) * 1964-05-15 1967-04-18 Bell Telephone Labor Inc Control of ground station transmitter power to supply suitable signal level to satellite repeater
US4234968A (en) * 1978-09-05 1980-11-18 Ncr Corporation Optical coupler module in a distributed processing system
JPS55149553A (en) * 1979-05-10 1980-11-20 Nec Corp Specific pulse inserting and removing circuit in data transmission system
JPS57174947A (en) * 1981-04-22 1982-10-27 Hitachi Ltd Optical information transmitting system
US4420842A (en) * 1981-07-29 1983-12-13 Kuhn Loughrey R Fiber optic digital data transmitting system
DE3224425A1 (de) * 1982-06-30 1984-01-05 Siemens AG, 1000 Berlin und 8000 München Bussystem mit lichtwellenleitern
US4562582A (en) * 1983-04-18 1985-12-31 Nippon Telegraph & Telephone Public Corporation Burst signal receiving apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0216214A3 (en) * 1985-09-25 1988-06-01 Siemens Aktiengesellschaft Berlin Und Munchen Method for the automatic level adjustment in a local area network, in particular for a multiprocessor arrangement with a bus system of optical fibres, for the purpose of collision detection

Also Published As

Publication number Publication date
AU3911585A (en) 1985-09-12
GB2155718B (en) 1987-01-28
GB8406077D0 (en) 1984-04-11
US4641375A (en) 1987-02-03
GB2155718A (en) 1985-09-25
EP0158431A1 (fr) 1985-10-16
JPS611143A (ja) 1986-01-07

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: INTERNATIONAL STANDARD ELECTRIC

Effective date: 19870331