JPH0352584B2 - - Google Patents

Info

Publication number
JPH0352584B2
JPH0352584B2 JP57061185A JP6118582A JPH0352584B2 JP H0352584 B2 JPH0352584 B2 JP H0352584B2 JP 57061185 A JP57061185 A JP 57061185A JP 6118582 A JP6118582 A JP 6118582A JP H0352584 B2 JPH0352584 B2 JP H0352584B2
Authority
JP
Japan
Prior art keywords
test device
line
terminal network
dipole
pole terminal
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 - Lifetime
Application number
JP57061185A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57179763A (en
Inventor
Pieeru Howatoban Jan
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of JPS57179763A publication Critical patent/JPS57179763A/ja
Publication of JPH0352584B2 publication Critical patent/JPH0352584B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08—Locating faults in cables, transmission lines, or networks
    • G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
    • G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
    • H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
    • H04M3/301—Circuit arrangements at the subscriber's side of the line

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Locating Faults (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
JP6118582A 1981-04-17 1982-04-14 Test device for positioning trouble of two-wire line Granted JPS57179763A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8107784A FR2504274A1 (fr) 1981-04-17 1981-04-17 Dispositif de localisation de defauts dans une ligne bifilaire

Publications (2)

Publication Number Publication Date
JPS57179763A JPS57179763A (en) 1982-11-05
JPH0352584B2 true JPH0352584B2 (OSRAM) 1991-08-12

Family

ID=9257549

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6118582A Granted JPS57179763A (en) 1981-04-17 1982-04-14 Test device for positioning trouble of two-wire line

Country Status (6)

Country Link
US (1) US4550223A (OSRAM)
EP (1) EP0063502B1 (OSRAM)
JP (1) JPS57179763A (OSRAM)
CA (1) CA1191640A (OSRAM)
DE (1) DE3260482D1 (OSRAM)
FR (1) FR2504274A1 (OSRAM)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2564979B1 (fr) * 1984-05-25 1988-12-09 Constr Telephoniques Systeme de localisation de defauts dans une ligne bifilaire
GB2329552B (en) * 1997-09-02 2002-04-03 Gpt Ltd Telecommunications line terminator test
GB9718428D0 (en) 1997-09-02 1997-11-05 Plessey Telecomm Telelcommunications line termination test
US6108404A (en) 1998-02-05 2000-08-22 Mci Communications Corporation Method and system for testing a connection in a telephone network using interactive telephone response module
US6538451B1 (en) 1999-06-25 2003-03-25 Telcordia Technologies, Inc. Single ended measurement method and system for determining subscriber loop make up
US6724859B1 (en) 1999-09-30 2004-04-20 Telcordia Technologies, Inc. Method for determining subscriber loop make-up by subtracting calculated signals
US6819744B1 (en) 1999-09-30 2004-11-16 Telcordia Technologies, Inc. System and circuitry for measuring echoes on subscriber loops
WO2001024482A1 (en) * 1999-09-30 2001-04-05 Telcordia Technologies, Inc. System and circuitry for measuring echoes on subscriber loops
EP1114917A3 (de) 2000-01-04 2002-03-06 TCG UNITECH Aktiengesellschaft Vorrichtung zur Drehwinkelverstellung
DE102013109237A1 (de) * 2013-08-27 2015-03-05 Endress + Hauser Flowtec Ag Stromausgangsschaltung, Testanordnung mit einer Stromausgangsschaltung und Messumformer
US10439434B2 (en) * 2016-03-09 2019-10-08 Florida Power & Light Company Impedance shift analysis to predict failures in an electrical power distribution network

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2050703A (en) * 1934-06-09 1936-08-11 Bell Telephone Labor Inc Transmission system regulation
DE1416618A1 (de) * 1961-11-27 1969-02-13 Siemens Ag Schaltungsanordnung zum Messen der Fehlerstellenentfernung auf Leitungen
DE1157663B (de) * 1962-05-16 1963-11-21 Felten & Guilleaume Gmbh Schaltungsanordnung zur Fehlerortung bei UEbertragungsleitungen mit mehreren unbemannten Zwischenverstaerkerstationen
DE1219096B (de) * 1964-09-01 1966-06-16 Siemens Ag Verfahren zur Pruefung der Betriebsfaehigkeit von Teilnehmeranschlussleitungen in Fernmelde-, insbesondere Fernsprechanlagen
US3636280A (en) * 1970-09-17 1972-01-18 Gen Telephone Co Of California Telephone line testing from remote locations
GB1333667A (en) * 1971-05-03 1973-10-10 Westinghouse Brake & Signal Electrical fault location apparatus
US4025736A (en) * 1974-09-12 1977-05-24 Rfl Industries, Inc. Apparatus for measuring the value of a variable condition
DE2620348C2 (de) * 1976-05-07 1978-01-26 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zur Ortung von Unterbrechungen auf Nachrichtenübertragungsstrecken
US4278931A (en) * 1978-01-27 1981-07-14 The Post Office Location of contact faults on electrically conductive cables
US4187504A (en) * 1978-02-03 1980-02-05 Midland-Ross Corporation Fault monitoring and indicator system
FR2481032A1 (fr) * 1980-04-16 1981-10-23 Metais Gerard Systeme de localisation d'ouvertures et de boucles notamment dans une ligne telephonique d'abonne
US4373121A (en) * 1981-06-15 1983-02-08 Bell Telephone Laboratories, Incorporated Maintenance termination device
US4438299A (en) * 1982-02-26 1984-03-20 Tomim William L On-line telephone troubleshooting apparatus

Also Published As

Publication number Publication date
DE3260482D1 (en) 1984-09-06
FR2504274A1 (fr) 1982-10-22
EP0063502B1 (fr) 1984-08-01
CA1191640A (en) 1985-08-06
JPS57179763A (en) 1982-11-05
FR2504274B1 (OSRAM) 1983-05-27
EP0063502A1 (fr) 1982-10-27
US4550223A (en) 1985-10-29

Similar Documents

Publication Publication Date Title
US6278769B1 (en) Signaling method for invoking a test mode in a network interface unit
US4396809A (en) Maintenance termination unit
US5956386A (en) Telephone subscriber line diagnostics system and method
JPH0352584B2 (OSRAM)
US4415779A (en) Methods of and apparatus for testing telephone subscriber loop to locate a fault relative to a reference point
WO1985002740A1 (en) An improved maintenance termination unit
US4041255A (en) Switching circuit for telecommunications lines
CA1292585C (en) Ground start circuit
CA1182934A (en) Test device for locating faults in a two-wire line or for switching two-wire lines
JPS5882170A (ja) ２導体式回線の短絡および開放を検出する試験システム
US5721773A (en) Lightning protected maintenance termaination unit
EP0901264B1 (en) Telecommunications line termination test
US6897784B2 (en) Water monitoring system and water monitoring method for high voltage cables
US20040109540A1 (en) Ring, tip, ground testing tool
US5933011A (en) Ground path testing
US4485271A (en) Remotely actuable line disconnect device
US4629835A (en) Fault isolating apparatus system and method
JP3616369B2 (ja) 通信線の保安器
SU1226673A1 (ru) Устройство контрол сопротивлени шлейфа
JP2006060893A (ja) 直流地絡回線の判別装置及び判別方法
JPS58172034A (ja) 中継器の障害探索方式
JPH0232588B2 (OSRAM)
KR100275441B1 (ko) 가입자선로 심선 대조 시험용 자동 루프 회로
JPH0155425B2 (OSRAM)
US1801182A (en) Device for the maintenance of telegraph, telephone, or signaling lines