BE785285A - Systeme de localisation de repeteurs sur une liaison telephonique - Google Patents

Systeme de localisation de repeteurs sur une liaison telephonique

Info

Publication number
BE785285A
BE785285A BE785285A BE785285A BE785285A BE 785285 A BE785285 A BE 785285A BE 785285 A BE785285 A BE 785285A BE 785285 A BE785285 A BE 785285A BE 785285 A BE785285 A BE 785285A
Authority
BE
Belgium
Prior art keywords
location system
telephone link
repeater location
repeater
telephone
Prior art date
Application number
BE785285A
Other languages
English (en)
Original Assignee
Trt Telecom Radio Electr
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 Trt Telecom Radio Electr filed Critical Trt Telecom Radio Electr
Publication of BE785285A publication Critical patent/BE785285A/fr

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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Amplifiers (AREA)
BE785285A 1971-06-24 1972-06-22 Systeme de localisation de repeteurs sur une liaison telephonique BE785285A (fr)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
BE785285A true BE785285A (fr) 1972-12-22

Family

ID=9079204

Family Applications (1)

Application Number Title Priority Date Filing Date
BE785285A BE785285A (fr) 1971-06-24 1972-06-22 Systeme de localisation de repeteurs sur une liaison telephonique

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
FR2142721B1 (fr) 1973-06-29
DE2227341A1 (de) 1973-01-11
FR2142721A1 (fr) 1973-02-02
AU4381272A (en) 1974-01-03
CA982681A (en) 1976-01-27
JPS5331331B1 (fr) 1978-09-01
GB1391364A (en) 1975-04-23
US3758728A (en) 1973-09-11

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