FR2251975B1 - - Google Patents

Info

Publication number
FR2251975B1
FR2251975B1 FR7340850A FR7340850A FR2251975B1 FR 2251975 B1 FR2251975 B1 FR 2251975B1 FR 7340850 A FR7340850 A FR 7340850A FR 7340850 A FR7340850 A FR 7340850A FR 2251975 B1 FR2251975 B1 FR 2251975B1
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
FR7340850A
Other languages
French (fr)
Other versions
FR2251975A1 (cs
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.)
Laboratoire Central de Telecommunications SA
Original Assignee
Laboratoire Central de Telecommunications SA
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 Laboratoire Central de Telecommunications SA filed Critical Laboratoire Central de Telecommunications SA
Priority to FR7340850A priority Critical patent/FR2251975B1/fr
Priority to ZA00747128A priority patent/ZA747128B/xx
Priority to DE2453094A priority patent/DE2453094B2/de
Priority to GB4886074A priority patent/GB1452386A/en
Priority to CH1524474A priority patent/CH596727A5/xx
Publication of FR2251975A1 publication Critical patent/FR2251975A1/fr
Application granted granted Critical
Publication of FR2251975B1 publication Critical patent/FR2251975B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/0096—Trunk circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
FR7340850A 1973-11-16 1973-11-16 Expired FR2251975B1 (cs)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR7340850A FR2251975B1 (cs) 1973-11-16 1973-11-16
ZA00747128A ZA747128B (en) 1973-11-16 1974-11-06 Electronic trunk junctor
DE2453094A DE2453094B2 (de) 1973-11-16 1974-11-08 Elektronischer Verbindungssatz
GB4886074A GB1452386A (en) 1973-11-16 1974-11-12 Electronic trunk junctor
CH1524474A CH596727A5 (cs) 1973-11-16 1974-11-15

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7340850A FR2251975B1 (cs) 1973-11-16 1973-11-16

Publications (2)

Publication Number Publication Date
FR2251975A1 FR2251975A1 (cs) 1975-06-13
FR2251975B1 true FR2251975B1 (cs) 1979-08-03

Family

ID=9127862

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7340850A Expired FR2251975B1 (cs) 1973-11-16 1973-11-16

Country Status (5)

Country Link
CH (1) CH596727A5 (cs)
DE (1) DE2453094B2 (cs)
FR (1) FR2251975B1 (cs)
GB (1) GB1452386A (cs)
ZA (1) ZA747128B (cs)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2326100A1 (fr) * 1975-09-26 1977-04-22 Ericsson Telefon Ab L M Joncteur reseau de telephonie electronique
FR2372563A1 (fr) * 1976-11-25 1978-06-23 Ericsson Telefon Ab L M Joncteur reseau de telephonie electronique
CA1123131A (en) 1978-02-28 1982-05-04 Michael C.J. Cowpland Transformerless trunk circuit
CH635216A5 (de) * 1978-10-25 1983-03-15 Hansjoerg Erne Geraet zur ueberwachung des linienstromes in einer telefonleitung.
DE2846934A1 (de) * 1978-10-27 1980-04-30 Siemens Ag Vollelektronische schleifenschlussschaltung
FR2500975B1 (fr) * 1981-02-27 1993-05-07 Cit Alcatel Self electronique
FR2530105B1 (fr) * 1982-07-07 1985-07-05 Constr Telephoniques Circuit de boucle pour ligne telephonique
FR2544144A1 (fr) * 1983-04-11 1984-10-12 Rosny Unite Tech Relais modulateur, notamment pour installations de telecommunications
FR2546351B1 (fr) * 1983-05-18 1989-02-24 Telecommunications Sa Circuit de ligne pour joncteur de reseau
DE3322642A1 (de) * 1983-06-23 1985-01-24 Siemens AG, 1000 Berlin und 8000 München Gabelschaltung fuer fernsprechstationen mit verstaerkern
DE3407226A1 (de) * 1984-02-28 1985-08-29 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung fuer eine elektronische drossel in lautfernsprechstationen
DE3407202A1 (de) * 1984-02-28 1985-08-29 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung fuer eine elektronische drossel in lautfernsprechstationen
DE3604491A1 (de) * 1986-02-13 1987-08-20 Gaertner Karl Telegaertner Vorrichtung mit einem bistabilen relais
DE3804216A1 (de) * 1988-02-11 1989-08-24 Telefonbau & Normalzeit Gmbh Schaltungsanordnung fuer eine externleitungsuebertragung von kommunikations-vermittlungsanlagen, insbesondere fernsprechnebenstellenanlagen
GB2220820B (en) * 1988-07-13 1992-07-08 Philips Electronic Associated Telephone line loop current regulator
DE4337530A1 (de) * 1993-11-04 1995-05-11 Bergermann Petra Modul für die Anschaltung von Geräten an das öffentliche Telefonnetz
CN101729699B (zh) * 2008-10-25 2012-02-01 华为技术有限公司 一种分离设备及语音信号传输的方法

Also Published As

Publication number Publication date
DE2453094A1 (de) 1975-05-22
DE2453094B2 (de) 1979-11-29
ZA747128B (en) 1975-11-26
GB1452386A (en) 1976-10-13
FR2251975A1 (cs) 1975-06-13
CH596727A5 (cs) 1978-03-15

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Legal Events

Date Code Title Description
ST Notification of lapse