DE3012438A1 - Complete loop data transmission network - each terminal having fault localisation and restoration switching to adopt end mode if intermediate line fails - Google Patents

Complete loop data transmission network - each terminal having fault localisation and restoration switching to adopt end mode if intermediate line fails

Info

Publication number
DE3012438A1
DE3012438A1 DE19803012438 DE3012438A DE3012438A1 DE 3012438 A1 DE3012438 A1 DE 3012438A1 DE 19803012438 DE19803012438 DE 19803012438 DE 3012438 A DE3012438 A DE 3012438A DE 3012438 A1 DE3012438 A1 DE 3012438A1
Authority
DE
Grant status
Application
Patent type
Prior art keywords
terminal
fault
line
transmission
terminals
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.)
Withdrawn
Application number
DE19803012438
Other languages
German (de)
Inventor
Fumihiko Takezoe
Hiroshi Nishinaga
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
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

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/74Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus
    • H04B1/745Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus using by-passing or self-healing methods
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. local area networks [LAN], wide area networks [WAN]
    • H04L12/42Loop networks
    • H04L12/437Ring fault isolation or reconfiguration

Abstract

The multipoint data transmission network comprises several terminal units each with a fault diagnosis and restoration switching capability. Each terminal comprises a transmission and reception data unit and associated diagnostic restoration circuit. In line failure cases the fault recognising terminals locate the fault and switch the terminals either end of it to 'end operation' mode, this isolates the faulty line and maintains full terminal operation via a loop path. The fault condition and location are indicated by alarms. The network is proved and the fault conditions determined by using test signals from a generator in the terminal transmission units. A typical network (10) would have a ring formation of transmission lines (12) together with a feedback or loop path (14) for the connection of several terminals (here 3, 16, 18, 20). Each terminal has a transmitter/receiver (22) and line changeover switching (24, 26) together with line matching terminations (28, 30).
DE19803012438 1979-04-06 1980-03-31 Complete loop data transmission network - each terminal having fault localisation and restoration switching to adopt end mode if intermediate line fails Withdrawn DE3012438A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP4184279A JPS6243578B2 (en) 1979-04-06 1979-04-06
JP4184179A JPS6013625B2 (en) 1979-04-06 1979-04-06
JP4184379A JPS6013626B2 (en) 1979-04-06 1979-04-06

Publications (1)

Publication Number Publication Date
DE3012438A1 true true DE3012438A1 (en) 1980-10-16

Family

ID=27290969

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19803012438 Withdrawn DE3012438A1 (en) 1979-04-06 1980-03-31 Complete loop data transmission network - each terminal having fault localisation and restoration switching to adopt end mode if intermediate line fails

Country Status (1)

Country Link
DE (1) DE3012438A1 (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0033228A2 (en) * 1980-01-24 1981-08-05 Forney International, Inc. Industrial control system
EP0062333A2 (en) * 1981-04-03 1982-10-13 Hitachi, Ltd. Multicomputer system and transmission control method therefor
EP0074672A2 (en) * 1981-09-16 1983-03-23 Fmc Corporation Asynchronous data bus system
FR2540694A1 (en) * 1983-02-07 1984-08-10 Trt Telecom Radio Electr telecommunication system in loop having a time-multiplexed first and second transmission lines
EP0170336A2 (en) * 1984-07-28 1986-02-05 Philips Patentverwaltung GmbH Information transmission arrangement with reconfiguration
EP0186792A1 (en) * 1984-12-13 1986-07-09 Siemens Aktiengesellschaft Interface module
EP0195595A2 (en) * 1985-03-21 1986-09-24 AT&T Corp. Local area network
DE3926091A1 (en) * 1988-09-03 1990-03-15 Hitachi Ltd Signal forms of the pulse repeater
WO1995024087A1 (en) * 1994-03-02 1995-09-08 Cerberus Ag Communication network with several stations and method of operating it
FR2916874A1 (en) * 2007-06-04 2008-12-05 Nexter Systems Sa components connecting device on a bus line, bus line eet regeneration processes of a bus line implementing such a connection device
DE102010046152B3 (en) * 2010-09-21 2011-12-15 Rheinmetall Landsysteme Gmbh System with n - mechanically interconnected devices
DE102010044892A1 (en) * 2010-09-09 2012-03-15 Novar Gmbh Alarm system with two data transmission speeds

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US28958A (en) * 1860-07-03 Socket for fence-posts
US4042794A (en) * 1975-01-27 1977-08-16 Lynch Communication Systems Method and means for detecting an outgoing failure in a bidirectional communications span and looping the same in response thereto

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US28958A (en) * 1860-07-03 Socket for fence-posts
US4042794A (en) * 1975-01-27 1977-08-16 Lynch Communication Systems Method and means for detecting an outgoing failure in a bidirectional communications span and looping the same in response thereto

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
M.T.LIU "Distributed Loop Computer Networks" in: Advances in Computers, Vol.17, herausgegeben von M.C.Yovits Academic Press 1978, S.178-185 *

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0033228A3 (en) * 1980-01-24 1982-10-13 Forney International, Inc. Industrial control system
EP0033228A2 (en) * 1980-01-24 1981-08-05 Forney International, Inc. Industrial control system
EP0062333A2 (en) * 1981-04-03 1982-10-13 Hitachi, Ltd. Multicomputer system and transmission control method therefor
EP0062333A3 (en) * 1981-04-03 1985-01-16 Hitachi, Ltd. Multicomputer system and transmission control method therefor
EP0074672A2 (en) * 1981-09-16 1983-03-23 Fmc Corporation Asynchronous data bus system
EP0074672A3 (en) * 1981-09-16 1983-09-07 Fmc Corporation Asynchronous data bus system
EP0115894A1 (en) * 1983-02-07 1984-08-15 Telecommunications Radioelectriques Et Telephoniques T.R.T. TDM loop telecommunication system comprising a first and a second transmission line
FR2540694A1 (en) * 1983-02-07 1984-08-10 Trt Telecom Radio Electr telecommunication system in loop having a time-multiplexed first and second transmission lines
EP0170336A2 (en) * 1984-07-28 1986-02-05 Philips Patentverwaltung GmbH Information transmission arrangement with reconfiguration
EP0170336A3 (en) * 1984-07-28 1987-08-05 Philips Patentverwaltung Gmbh Information transmission arrangement with reconfiguration
EP0186792A1 (en) * 1984-12-13 1986-07-09 Siemens Aktiengesellschaft Interface module
EP0195595A3 (en) * 1985-03-21 1987-10-07 American Telephone And Telegraph Company Local area network
EP0195595A2 (en) * 1985-03-21 1986-09-24 AT&T Corp. Local area network
DE3926091A1 (en) * 1988-09-03 1990-03-15 Hitachi Ltd Signal forms of the pulse repeater
WO1995024087A1 (en) * 1994-03-02 1995-09-08 Cerberus Ag Communication network with several stations and method of operating it
FR2916874A1 (en) * 2007-06-04 2008-12-05 Nexter Systems Sa components connecting device on a bus line, bus line eet regeneration processes of a bus line implementing such a connection device
EP2001169A1 (en) * 2007-06-04 2008-12-10 NEXTER Systems Device for connecting components to a BUS line, BUS line and methods for regenerating a BUS line implementing such a connection device
DE102010044892A1 (en) * 2010-09-09 2012-03-15 Novar Gmbh Alarm system with two data transmission speeds
DE102010046152B3 (en) * 2010-09-21 2011-12-15 Rheinmetall Landsysteme Gmbh System with n - mechanically interconnected devices
WO2012038051A1 (en) 2010-09-21 2012-03-29 Rheinmetall Landsysteme Gmbh System having n units mechanically connected to one another

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee