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IT1192090B - Localizzatore automatico di guasti su linee telefoniche - Google Patents

Localizzatore automatico di guasti su linee telefoniche

Info

Publication number
IT1192090B
IT1192090B IT41575/85A IT4157585A IT1192090B IT 1192090 B IT1192090 B IT 1192090B IT 41575/85 A IT41575/85 A IT 41575/85A IT 4157585 A IT4157585 A IT 4157585A IT 1192090 B IT1192090 B IT 1192090B
Authority
IT
Italy
Prior art keywords
telephone lines
automatic fault
fault locator
locator
automatic
Prior art date
Application number
IT41575/85A
Other languages
English (en)
Other versions
IT8541575A0 (it
Inventor
Amadio Delano
Alessandro Lazzari
Original Assignee
Flitel Spa
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 Flitel Spa filed Critical Flitel Spa
Priority to IT41575/85A priority Critical patent/IT1192090B/it
Publication of IT8541575A0 publication Critical patent/IT8541575A0/it
Priority to EP86108078A priority patent/EP0206161A3/en
Priority to US06/874,769 priority patent/US4751724A/en
Application granted granted Critical
Publication of IT1192090B publication Critical patent/IT1192090B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/46—Monitoring; Testing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/24—Arrangements for testing

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Locating Faults (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
IT41575/85A 1985-06-20 1985-06-20 Localizzatore automatico di guasti su linee telefoniche IT1192090B (it)

Priority Applications (3)

Application Number Priority Date Filing Date Title
IT41575/85A IT1192090B (it) 1985-06-20 1985-06-20 Localizzatore automatico di guasti su linee telefoniche
EP86108078A EP0206161A3 (en) 1985-06-20 1986-06-13 Automatic telephone line fault locator
US06/874,769 US4751724A (en) 1985-06-20 1986-06-16 Automatic telephone line fault locator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT41575/85A IT1192090B (it) 1985-06-20 1985-06-20 Localizzatore automatico di guasti su linee telefoniche

Publications (2)

Publication Number Publication Date
IT8541575A0 IT8541575A0 (it) 1985-06-20
IT1192090B true IT1192090B (it) 1988-03-31

Family

ID=11251434

Family Applications (1)

Application Number Title Priority Date Filing Date
IT41575/85A IT1192090B (it) 1985-06-20 1985-06-20 Localizzatore automatico di guasti su linee telefoniche

Country Status (3)

Country Link
US (1) US4751724A (it)
EP (1) EP0206161A3 (it)
IT (1) IT1192090B (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4896315A (en) * 1987-07-23 1990-01-23 Digital Equipment Corporation Apparatus and method for determining network component locations on a local area network system cable segment
US4929900A (en) * 1987-12-29 1990-05-29 Industrial Technology, Inc. Method for locating conductive faults in telephone and similar cables
US4868507A (en) * 1988-11-23 1989-09-19 Minnesota Mining And Manufacturing Company Microcomputer controlled resistance fault locator circuit
US5218616A (en) * 1991-10-02 1993-06-08 Communications Technology Corporation Telephone line tester
SE470439B (sv) * 1992-08-07 1994-03-07 Ericsson Telefon Ab L M Metod att bestämma den fysikaliska längden hos en telefonlinje
US5960060A (en) * 1997-08-19 1999-09-28 J. V. Technologies, Inc. Line tester for coin-operated telephones
CA2750063C (en) * 2009-01-23 2019-01-15 Tyco Safety Products Canada Ltd. Alarm monitoring telecommunications line condition detection and automatic calibration
JP6620185B2 (ja) * 2018-04-19 2019-12-11 東日本電信電話株式会社 故障位置検知装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3912884A (en) * 1974-08-05 1975-10-14 Singer Co Communication monitoring system
US4025736A (en) * 1974-09-12 1977-05-24 Rfl Industries, Inc. Apparatus for measuring the value of a variable condition
US4001559A (en) * 1974-12-16 1977-01-04 Northern Telecom, Inc. Programmable measuring
US4139745A (en) * 1975-11-05 1979-02-13 Teradyne, Inc. Telephone line test system
US4028507A (en) * 1976-06-28 1977-06-07 Bell Telephone Laboratories, Incorporated Apparatus for applying particular voltages to three-terminal circuits and measuring resulting current flows for the purpose of determining circuit characteristics
EP0003433A1 (en) * 1978-01-27 1979-08-08 The Post Office Improvements in or relating to the location of contact faults on electrically conductive cables
NL7802422A (nl) * 1978-03-06 1979-09-10 Philips Nv Inrichting voor het meten van de lijnconditie van een abonneelijnstroomloop met behulp van een meetweerstand.
US4186282A (en) * 1978-09-25 1980-01-29 Northern Telecom Limited Method and apparatus for measuring telephone line characteristics
US4568802A (en) * 1984-05-02 1986-02-04 Bradley Telcom Corp. VF Line fault isolation and diagnostic apparatus and method

Also Published As

Publication number Publication date
EP0206161A2 (en) 1986-12-30
EP0206161A3 (en) 1988-08-17
US4751724A (en) 1988-06-14
IT8541575A0 (it) 1985-06-20

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