FR2492206B3 - - Google Patents

Info

Publication number
FR2492206B3
FR2492206B3 FR8119022A FR8119022A FR2492206B3 FR 2492206 B3 FR2492206 B3 FR 2492206B3 FR 8119022 A FR8119022 A FR 8119022A FR 8119022 A FR8119022 A FR 8119022A FR 2492206 B3 FR2492206 B3 FR 2492206B3
Authority
FR
France
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.)
Expired
Application number
FR8119022A
Other versions
FR2492206A1 (fr
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.)
Italtel SpA
Original Assignee
Italtel SpA
Italtel Societa Italiana Telecomunicazioni SpA
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 Italtel SpA, Italtel Societa Italiana Telecomunicazioni SpA filed Critical Italtel SpA
Publication of FR2492206A1 publication Critical patent/FR2492206A1/fr
Application granted granted Critical
Publication of FR2492206B3 publication Critical patent/FR2492206B3/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
    • H04Q5/24—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange for two-party-line systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
FR8119022A 1980-10-09 1981-10-09 Disposition de circuit pour usagers duplex dans des centres de commutation telephonique du type electronique Granted FR2492206A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT25213/80A IT1149225B (it) 1980-10-09 1980-10-09 Disposizione circuitale per utenti duplex in centrali di commutazione telefonica di tipo elettronico

Publications (2)

Publication Number Publication Date
FR2492206A1 FR2492206A1 (fr) 1982-04-16
FR2492206B3 true FR2492206B3 (fr) 1983-07-29

Family

ID=11216022

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8119022A Granted FR2492206A1 (fr) 1980-10-09 1981-10-09 Disposition de circuit pour usagers duplex dans des centres de commutation telephonique du type electronique

Country Status (5)

Country Link
US (1) US4435619A (fr)
BR (1) BR8106570A (fr)
DE (1) DE3140182A1 (fr)
FR (1) FR2492206A1 (fr)
IT (1) IT1149225B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3517088C1 (de) * 1985-05-11 1986-09-04 Neumann Elektronik GmbH, 4330 Mülheim Einrichtung an einem Fernsprech-Teilnehmeranschluss zur Abschaltung einer von zwei wechselweise automatisch anschaltbaren Sprechstellen von der Vermittlungsstelle aus bei ungewolltem Schleifenanschluss in dieser Sprechstelle
DE3532960C1 (de) * 1985-09-16 1987-02-05 Neumann Elektronik Gmbh Einrichtung an einem Fernsprech-Teilnehmeranschluss mit zwei wechselweise automatisch anschaltbaren Sprechstellen zur Abschaltung einer,einen ungewollten Schleifenschluss aufweisenden Sprechstelle von der Vermittlungsstelle aus
US5245654A (en) * 1991-10-10 1993-09-14 Cermetek Microelectronics, Inc. Solid state isolation device using opto-isolators

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE756800A (fr) * 1969-09-29 1971-03-29 Siemens Ag Montage pour installations de telecommunications a commande centrale, plus particulierement pour installations telephoniques a branchement double
DE1950427B2 (de) * 1969-10-07 1976-12-09 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltungsanordnung fuer zweieranschluesse in fernmelde-, insbesondere fernsprechanlagen
DE2147732C3 (de) * 1971-09-24 1978-10-05 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltungsanordnung zum Prüfen der Teilnehmeranschlußleitungen in Fernmelde- insbesondere Fernsprechanlagen mit jeweils zwei über eine gemeinsame Anschlußleitung angeschlossenen Teilnehmerstellen
AT336090B (de) * 1974-09-20 1977-04-12 Kapsch Telephon Telegraph Gesellschaftsanschluss

Also Published As

Publication number Publication date
FR2492206A1 (fr) 1982-04-16
IT1149225B (it) 1986-12-03
US4435619A (en) 1984-03-06
BR8106570A (pt) 1982-06-29
DE3140182A1 (de) 1982-06-09
IT8025213A0 (it) 1980-10-09

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Legal Events

Date Code Title Description
ST Notification of lapse