FI883677A - Foerfarande foer maetning av ledningsparametrar av abonnentledning av telenaet. - Google Patents

Foerfarande foer maetning av ledningsparametrar av abonnentledning av telenaet. Download PDF

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Publication number
FI883677A
FI883677A FI883677A FI883677A FI883677A FI 883677 A FI883677 A FI 883677A FI 883677 A FI883677 A FI 883677A FI 883677 A FI883677 A FI 883677A FI 883677 A FI883677 A FI 883677A
Authority
FI
Finland
Prior art keywords
wires
line
values
capacitance
measurement
Prior art date
Application number
FI883677A
Other languages
English (en)
Other versions
FI883677A0 (fi
Inventor
Guenter Ohlendorf
James Elvidge
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of FI883677A0 publication Critical patent/FI883677A0/fi
Publication of FI883677A publication Critical patent/FI883677A/fi

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Jib Cranes (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
FI883677A 1987-08-07 1988-08-05 Foerfarande foer maetning av ledningsparametrar av abonnentledning av telenaet. FI883677A (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3726356 1987-08-07

Publications (2)

Publication Number Publication Date
FI883677A0 FI883677A0 (fi) 1988-08-05
FI883677A true FI883677A (fi) 1989-02-08

Family

ID=6333322

Family Applications (1)

Application Number Title Priority Date Filing Date
FI883677A FI883677A (fi) 1987-08-07 1988-08-05 Foerfarande foer maetning av ledningsparametrar av abonnentledning av telenaet.

Country Status (5)

Country Link
US (1) US4845737A (fi)
EP (1) EP0303142B1 (fi)
AT (1) ATE98830T1 (fi)
DE (1) DE3886300D1 (fi)
FI (1) FI883677A (fi)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU214419B (hu) * 1989-11-09 1998-04-28 B és C DIAGNOSTICS Kft Eljárás és készülék szigetelési rendszer állapotának vizsgálatára
JP2829063B2 (ja) * 1989-11-22 1998-11-25 株式会社日立製作所 加入者線路測定方法及びその測定装置
EP0453825A3 (en) * 1990-04-20 1993-04-28 Siemens Aktiengesellschaft Method for measuring line parameters of subscriber lines of a telephone network
US5063585A (en) * 1990-09-27 1991-11-05 At&T Bell Laboratories Telephone subscriber line fault detector
DE4210622C1 (fi) * 1992-03-31 1993-07-29 Siemens Ag, 8000 Muenchen, De
GB2269073B (en) * 1992-07-23 1996-06-19 Northern Telecom Ltd Remote line tester
US5404388A (en) * 1993-03-03 1995-04-04 Northern Telecom Limited Digital measurement of amplitude and phase of a sinusoidal signal and detection of load coil based on said measurement
US5606592A (en) * 1993-06-16 1997-02-25 Industrial Technology, Inc. Method and apparatus for analyzing resistive faults on telephones cables
US5444759A (en) * 1993-09-20 1995-08-22 Northern Telecom Limited Method of predicting voltages in telephone line measurement
EP0762713A1 (de) * 1995-09-07 1997-03-12 Siemens Aktiengesellschaft Schaltungsanordnung zum Prüfen von Teilnehmerleitungen
GB9718428D0 (en) * 1997-09-02 1997-11-05 Plessey Telecomm Telelcommunications line termination test
DE10023305C2 (de) * 2000-05-15 2002-10-17 Grieshaber Vega Kg Verfahren zur Ansteuerung einer Wandlereinrichtung in Füllstandmessgeräten und Vorrichtung zur Durchführung des Verfahrens
US20050270037A1 (en) * 2004-06-07 2005-12-08 Haynes Leonard S Method and system for non-destructive evaluation of conducting structures
EP1729489A1 (en) * 2005-05-31 2006-12-06 Infineon Technologies AG Method of measuring a capacitive property of a communication line and corresponding apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2414624A (en) * 1943-05-15 1947-01-21 American Telephone & Telegraph Apparatus for testing transmission lines
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
US4186282A (en) * 1978-09-25 1980-01-29 Northern Telecom Limited Method and apparatus for measuring telephone line characteristics
GB2126732B (en) * 1982-09-02 1986-01-15 British Telecomm Impedance measurement in 4-wire to 2-wire converters

Also Published As

Publication number Publication date
EP0303142A1 (de) 1989-02-15
ATE98830T1 (de) 1994-01-15
DE3886300D1 (de) 1994-01-27
FI883677A0 (fi) 1988-08-05
EP0303142B1 (de) 1993-12-15
US4845737A (en) 1989-07-04

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FD Application lapsed
MM Patent lapsed

Owner name: SIEMENS AKTIENGESELLSCHAFT