ES410520A1 - Un dispositivo para la localizacion de averias en sistemas de comunicacion a cuatro hilos. - Google Patents

Un dispositivo para la localizacion de averias en sistemas de comunicacion a cuatro hilos.

Info

Publication number
ES410520A1
ES410520A1 ES410520A ES410520A ES410520A1 ES 410520 A1 ES410520 A1 ES 410520A1 ES 410520 A ES410520 A ES 410520A ES 410520 A ES410520 A ES 410520A ES 410520 A1 ES410520 A1 ES 410520A1
Authority
ES
Spain
Prior art keywords
line
ccts
designed
carrier frequency
transmission systems
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.)
Expired
Application number
ES410520A
Other languages
English (en)
Spanish (es)
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.)
Nokia Spain SA
Original Assignee
Alcatel Espana 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 Alcatel Espana SA filed Critical Alcatel Espana SA
Publication of ES410520A1 publication Critical patent/ES410520A1/es
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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
ES410520A 1972-01-12 1973-01-11 Un dispositivo para la localizacion de averias en sistemas de comunicacion a cuatro hilos. Expired ES410520A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722201330 DE2201330C3 (de) 1972-01-12 1972-01-12 Fehlerortungsanordnung für 4-Draht-Nachrichtenübertragungsanlagen

Publications (1)

Publication Number Publication Date
ES410520A1 true ES410520A1 (es) 1975-12-01

Family

ID=5832819

Family Applications (1)

Application Number Title Priority Date Filing Date
ES410520A Expired ES410520A1 (es) 1972-01-12 1973-01-11 Un dispositivo para la localizacion de averias en sistemas de comunicacion a cuatro hilos.

Country Status (4)

Country Link
AU (1) AU473439B2 (en:Method)
CH (1) CH561486A5 (en:Method)
DE (1) DE2201330C3 (en:Method)
ES (1) ES410520A1 (en:Method)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2942410A1 (de) * 1979-10-19 1981-05-07 Siemens AG, 1000 Berlin und 8000 München Adressenfreie fehlerortung mittels schleifenschluss in einer nachrichtenuebertragungsstrecke
GB8830262D0 (en) * 1988-12-24 1989-02-22 Stc Plc Submarine optical cable fault location

Also Published As

Publication number Publication date
CH561486A5 (en:Method) 1975-04-30
DE2201330A1 (de) 1973-07-19
DE2201330B2 (de) 1975-03-20
AU473439B2 (en) 1976-06-24
DE2201330C3 (de) 1975-11-13
AU5083173A (en) 1974-07-11

Similar Documents

Publication Publication Date Title
US2980898A (en) Fault location system
GB958313A (en) Improvements in communication system
ES410520A1 (es) Un dispositivo para la localizacion de averias en sistemas de comunicacion a cuatro hilos.
ES364483A1 (es) Sistema localizador de averias.
GB1296406A (en:Method)
US3916381A (en) Loop arrangement to test a remote subscriber{3 s drop from a central office via a PCM subscriber carrier system
US3401238A (en) Cable pair identifier
GB1369062A (en) Fault location system for use in the location of faults in both a pcm link between two terminal stations
GB562870A (en) Improvements in telephone or like systems
CA1005179A (en) System for locating faulty line repeaters of repeater stations in a transmission line
ES201421A1 (es) MEJORAS EN LOS SITEMAS DE COMUNICACIoN POR CoDIGO O RELATIVAS A ESTOS SISTEMAS
US2067320A (en) Measuring system for program circuit maintenance
GB1012462A (en) Improvements in or relating to circuit arrangements for a transmission system, for example, a carrier wave telephony system
US1996677A (en) Remote metering system
ES252046A1 (es) Perfeccionamientos en sistemas centralizados de control de trafico para lineas ferreas
GB1257549A (en:Method)
GB986666A (en) Electric control circuits and systems
US2094049A (en) Signal system
GB831499A (en) Signalling system for carrier frequency telephone systems
US2727093A (en) Multi-channel communication systems
GB797140A (en) Improvements in code communication systems
ES368987A1 (es) Un metodo de localizacion de averias en equipos de transmi-sion.
ES399576A1 (es) Un circuito de linea para transmision.
GB263926A (en) Improvements relating to electric remote control systems
GB1064592A (en) Method to localise faults in carrier frequency systems