FR2290804A1 - Dispositif de verification de la continuite du chemin de parole numerique et analogique entre des centres de commutation numeriques et a frequence vocale - Google Patents

Dispositif de verification de la continuite du chemin de parole numerique et analogique entre des centres de commutation numeriques et a frequence vocale

Info

Publication number
FR2290804A1
FR2290804A1 FR7436757A FR7436757A FR2290804A1 FR 2290804 A1 FR2290804 A1 FR 2290804A1 FR 7436757 A FR7436757 A FR 7436757A FR 7436757 A FR7436757 A FR 7436757A FR 2290804 A1 FR2290804 A1 FR 2290804A1
Authority
FR
France
Prior art keywords
digital
continuity
analogue
verifying
frequency switching
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
FR7436757A
Other languages
English (en)
French (fr)
Other versions
FR2290804B1 (OSRAM
Inventor
Augustin Lejay
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 FR7436757A priority Critical patent/FR2290804A1/fr
Priority to GB4434575A priority patent/GB1510498A/en
Priority to BE2054644A priority patent/BE835204A/xx
Publication of FR2290804A1 publication Critical patent/FR2290804A1/fr
Application granted granted Critical
Publication of FR2290804B1 publication Critical patent/FR2290804B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Time-Division Multiplex Systems (AREA)
FR7436757A 1974-11-06 1974-11-06 Dispositif de verification de la continuite du chemin de parole numerique et analogique entre des centres de commutation numeriques et a frequence vocale Granted FR2290804A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR7436757A FR2290804A1 (fr) 1974-11-06 1974-11-06 Dispositif de verification de la continuite du chemin de parole numerique et analogique entre des centres de commutation numeriques et a frequence vocale
GB4434575A GB1510498A (en) 1974-11-06 1975-10-28 Device for checking the continuity of a communication path between two terminals
BE2054644A BE835204A (fr) 1974-11-06 1975-11-04 Dispositif de verification de la continuite du chemin de parole numerique et analogique entre des centres de commutation numeriques et a frequences vocale

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7436757A FR2290804A1 (fr) 1974-11-06 1974-11-06 Dispositif de verification de la continuite du chemin de parole numerique et analogique entre des centres de commutation numeriques et a frequence vocale

Publications (2)

Publication Number Publication Date
FR2290804A1 true FR2290804A1 (fr) 1976-06-04
FR2290804B1 FR2290804B1 (OSRAM) 1978-06-09

Family

ID=9144687

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7436757A Granted FR2290804A1 (fr) 1974-11-06 1974-11-06 Dispositif de verification de la continuite du chemin de parole numerique et analogique entre des centres de commutation numeriques et a frequence vocale

Country Status (3)

Country Link
BE (1) BE835204A (OSRAM)
FR (1) FR2290804A1 (OSRAM)
GB (1) GB1510498A (OSRAM)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2478925A1 (fr) * 1980-03-21 1981-09-25 Italtel Spa Disposition de circuit apte a relever les caracteristiques electriques des lignes de jonction, aussi bien analogiques que numeriques, aboutissant a un central telephonique transitaire de type numerique

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2838816A1 (de) * 1978-09-06 1980-03-20 Tekade Felten & Guilleaume Schleifentest fuer datenuebertragungsstrecken

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2478925A1 (fr) * 1980-03-21 1981-09-25 Italtel Spa Disposition de circuit apte a relever les caracteristiques electriques des lignes de jonction, aussi bien analogiques que numeriques, aboutissant a un central telephonique transitaire de type numerique

Also Published As

Publication number Publication date
GB1510498A (en) 1978-05-10
FR2290804B1 (OSRAM) 1978-06-09
BE835204A (fr) 1976-05-04

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Legal Events

Date Code Title Description
ST Notification of lapse