FR2142721B1 - - Google Patents

Info

Publication number
FR2142721B1
FR2142721B1 FR717122982A FR7122982A FR2142721B1 FR 2142721 B1 FR2142721 B1 FR 2142721B1 FR 717122982 A FR717122982 A FR 717122982A FR 7122982 A FR7122982 A FR 7122982A FR 2142721 B1 FR2142721 B1 FR 2142721B1
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
FR717122982A
Other versions
FR2142721A1 (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.)
Telecommunications Radioelectriques et Telephoniques SA TRT
Original Assignee
Telecommunications Radioelectriques et Telephoniques SA TRT
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 Telecommunications Radioelectriques et Telephoniques SA TRT filed Critical Telecommunications Radioelectriques et Telephoniques SA TRT
Priority to FR717122982A priority Critical patent/FR2142721B1/fr
Priority to DE2227341A priority patent/DE2227341A1/de
Priority to CA145,277A priority patent/CA982681A/en
Priority to GB2903372A priority patent/GB1391364A/en
Priority to BE785285A priority patent/BE785285A/fr
Priority to JP6280572A priority patent/JPS5331331B1/ja
Priority to US00265331A priority patent/US3758728A/en
Priority to AU43812/72A priority patent/AU4381272A/en
Publication of FR2142721A1 publication Critical patent/FR2142721A1/fr
Application granted granted Critical
Publication of FR2142721B1 publication Critical patent/FR2142721B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/40—Monitoring; Testing of relay systems
    • H04B17/407—Monitoring; Testing of relay systems without selective localization
    • H04B17/408—Monitoring; Testing of relay systems without selective localization using successive loop-backs
FR717122982A 1971-06-24 1971-06-24 Expired FR2142721B1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FR717122982A FR2142721B1 (fr) 1971-06-24 1971-06-24
DE2227341A DE2227341A1 (de) 1971-06-24 1972-06-06 System zum lokalisieren von leitungsverstaerkern in einer fernsprechverbindung
GB2903372A GB1391364A (en) 1971-06-24 1972-06-21 Repeater fault localisation system
CA145,277A CA982681A (en) 1971-06-24 1972-06-21 Repeater fault localisation system
BE785285A BE785285A (fr) 1971-06-24 1972-06-22 Systeme de localisation de repeteurs sur une liaison telephonique
JP6280572A JPS5331331B1 (fr) 1971-06-24 1972-06-22
US00265331A US3758728A (en) 1971-06-24 1972-06-22 Repeater fault localization system
AU43812/72A AU4381272A (en) 1971-06-24 1972-06-23 Repeaterfault localisation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR717122982A FR2142721B1 (fr) 1971-06-24 1971-06-24

Publications (2)

Publication Number Publication Date
FR2142721A1 FR2142721A1 (fr) 1973-02-02
FR2142721B1 true FR2142721B1 (fr) 1973-06-29

Family

ID=9079204

Family Applications (1)

Application Number Title Priority Date Filing Date
FR717122982A Expired FR2142721B1 (fr) 1971-06-24 1971-06-24

Country Status (8)

Country Link
US (1) US3758728A (fr)
JP (1) JPS5331331B1 (fr)
AU (1) AU4381272A (fr)
BE (1) BE785285A (fr)
CA (1) CA982681A (fr)
DE (1) DE2227341A1 (fr)
FR (1) FR2142721B1 (fr)
GB (1) GB1391364A (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4002847A (en) * 1975-12-29 1977-01-11 Bell Telephone Laboratories, Incorporated Fault isolation in a serial-looped transmission system
DE3000371C2 (de) * 1980-01-07 1981-10-01 Siemens AG, 1000 Berlin und 8000 München Übertragungsstrecke für digitale Signale
JPS5929472U (ja) * 1982-08-18 1984-02-23 神菱電機製造株式会社 ロ−タリ−式ガス電動コツクの表示機構
JPS61139371U (fr) * 1985-02-19 1986-08-29
US5191595A (en) * 1991-04-12 1993-03-02 Telecommunications Techniques Corporation T1 digital communications system for in-service detection and identification of malfunctioning repeaters
KR0143113B1 (ko) * 1995-08-18 1998-08-01 김광호 중계 전송로에서 급전 불 평형 감지회로
US5862200A (en) * 1996-07-16 1999-01-19 Teltrend, Inc. Ground fault detector for T1 span equipment
US5887050A (en) * 1997-05-09 1999-03-23 Siemens Building Technologies, Inc. Repeater apparatus having isolation circuit
WO1999053627A1 (fr) 1998-04-10 1999-10-21 Chrimar Systems, Inc. Doing Business As Cms Technologies Systeme de communication avec un equipement electronique sur un reseau

Also Published As

Publication number Publication date
DE2227341A1 (de) 1973-01-11
CA982681A (en) 1976-01-27
FR2142721A1 (fr) 1973-02-02
US3758728A (en) 1973-09-11
AU4381272A (en) 1974-01-03
JPS5331331B1 (fr) 1978-09-01
GB1391364A (en) 1975-04-23
BE785285A (fr) 1972-12-22

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Legal Events

Date Code Title Description
ST Notification of lapse