FR2363954A1 - Dispositif de commutation pour liaisons de priorite - Google Patents

Dispositif de commutation pour liaisons de priorite

Info

Publication number
FR2363954A1
FR2363954A1 FR7626605A FR7626605A FR2363954A1 FR 2363954 A1 FR2363954 A1 FR 2363954A1 FR 7626605 A FR7626605 A FR 7626605A FR 7626605 A FR7626605 A FR 7626605A FR 2363954 A1 FR2363954 A1 FR 2363954A1
Authority
FR
France
Prior art keywords
circuitry
solid state
given threshold
threshold level
inhibit circuit
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.)
Granted
Application number
FR7626605A
Other languages
English (en)
Other versions
FR2363954B1 (fr
Inventor
Alain Morelieras
Claude Amigou
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.)
LANNIONNAIS ELECTRONIQUE
Original Assignee
LANNIONNAIS ELECTRONIQUE
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 LANNIONNAIS ELECTRONIQUE filed Critical LANNIONNAIS ELECTRONIQUE
Priority to FR7626605A priority Critical patent/FR2363954A1/fr
Publication of FR2363954A1 publication Critical patent/FR2363954A1/fr
Application granted granted Critical
Publication of FR2363954B1 publication Critical patent/FR2363954B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised
    • H04Q3/545—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised using a stored programme
    • 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]
    • H04L12/42—Loop networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)

Abstract

Le dispositif concerne les liaisons de priorité. Le dispositif de commutation permet d'assurer la continuité du signal de prise sur des liaisons de priorité desservant en série des périphériques. Il est alimenté, en fonctionnement normal, par le périphérique. En cas de coupure d'alimentation, ou pendant sa disparition, le dispositif s'auto-alimente par le signal de prise. Le dispositif comprend un circuit de détection de défaut d'alimentation, un circuit de commutation, un circuit de blocage inhibant l'émetteur de réémission du périphérique. Lorsque la liaison de priorité est du type coaxial le dispositif de commutation comporte deux circuits d'adaptation d'impédance qui sont mis hors service en cas de défaut d'alimentation du périphérique. Application aux systèmes à structure hiérarchisée gérant plusieurs organes de contrôle, et notamment aux centraux téléphoniques.
FR7626605A 1976-09-03 1976-09-03 Dispositif de commutation pour liaisons de priorite Granted FR2363954A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7626605A FR2363954A1 (fr) 1976-09-03 1976-09-03 Dispositif de commutation pour liaisons de priorite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7626605A FR2363954A1 (fr) 1976-09-03 1976-09-03 Dispositif de commutation pour liaisons de priorite

Publications (2)

Publication Number Publication Date
FR2363954A1 true FR2363954A1 (fr) 1978-03-31
FR2363954B1 FR2363954B1 (fr) 1982-11-26

Family

ID=9177353

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7626605A Granted FR2363954A1 (fr) 1976-09-03 1976-09-03 Dispositif de commutation pour liaisons de priorite

Country Status (1)

Country Link
FR (1) FR2363954A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0009551A1 (fr) * 1978-09-22 1980-04-16 International Business Machines Corporation Circuit d'appel des terminaux dans un système de transmission de données
WO1988007295A1 (fr) * 1987-03-18 1988-09-22 Alcatel N.V. Reseau de communication

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0009551A1 (fr) * 1978-09-22 1980-04-16 International Business Machines Corporation Circuit d'appel des terminaux dans un système de transmission de données
WO1988007295A1 (fr) * 1987-03-18 1988-09-22 Alcatel N.V. Reseau de communication

Also Published As

Publication number Publication date
FR2363954B1 (fr) 1982-11-26

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse