ES8503916A1 - Un metodo y un circuito para localizar fallos en un terminal de abonado para telecomunicacion digital - Google Patents

Un metodo y un circuito para localizar fallos en un terminal de abonado para telecomunicacion digital

Info

Publication number
ES8503916A1
ES8503916A1 ES527916A ES527916A ES8503916A1 ES 8503916 A1 ES8503916 A1 ES 8503916A1 ES 527916 A ES527916 A ES 527916A ES 527916 A ES527916 A ES 527916A ES 8503916 A1 ES8503916 A1 ES 8503916A1
Authority
ES
Spain
Prior art keywords
subscriber line
circuit
circuit arrangement
digital telephone
telephone subscriber
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
ES527916A
Other languages
English (en)
Other versions
ES527916A0 (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 ES527916A0 publication Critical patent/ES527916A0/es
Publication of ES8503916A1 publication Critical patent/ES8503916A1/es
Expired legal-status Critical Current

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
    • H04M3/302—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop using modulation techniques for copper pairs
    • H04M3/303—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop using modulation techniques for copper pairs and using PCM multiplexers, e.g. pair gain systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers

Abstract

METODO Y CIRCUITO PARA LOCALIZAR FALLOS EN UN TERMINAL DE ABONADO PARA TELECOMUNICACION DIGITAL.CONSISTE EN: A) COMPARAR LOS COEFICIENTES DEL FILTRO DIGITAL AUTOADAPTADOR QUE SE AJUSTAN CONTINUA Y AUTOMATICAMENTE EN EL CURSO DE UN METODO DE CANCELACION DE ECO, CON LOS COEFICIENTES QUE SE MIDEN Y SE ALMACENAN CUANDO EL TERMINAL ESTABA CORRECTO; Y B) DETECTAR LOS FALLOS EN LA LINEA DE ABONADO O EN EL TERMINAL DE LA RED POR MEDIO DE LAS DESVIACIONES ENTRE LOS COEFICIENTES RESPECTIVOS. CONSTA DE CIRCUITOS DE GRUPOS DE ABONADOS (17), QUE COMPRENDEN UNA MEMORIA DE COEFICIENTE COMUN (26); UNA MEMORIA DE LECTURA-ESCRITURA (23), UN CIRCUITO DE CONTROL (22) DE FALLOS Y UNA LINEA DE ABONADO (3) CON CANCELADOR DE ECO (24) Y MEMORIA DE COEFICIENTES (25); Y UNA UNIDAD DE CONTROL Y MANTENIMIENTO (29).
ES527916A 1982-12-09 1983-12-09 Un metodo y un circuito para localizar fallos en un terminal de abonado para telecomunicacion digital Expired ES8503916A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823245588 DE3245588A1 (de) 1982-12-09 1982-12-09 Verfahren und schaltungsanordnung zur fehlerortung bei einem digitalen fernmelde-teilnehmeranschluss

Publications (2)

Publication Number Publication Date
ES527916A0 ES527916A0 (es) 1985-03-16
ES8503916A1 true ES8503916A1 (es) 1985-03-16

Family

ID=6180228

Family Applications (1)

Application Number Title Priority Date Filing Date
ES527916A Expired ES8503916A1 (es) 1982-12-09 1983-12-09 Un metodo y un circuito para localizar fallos en un terminal de abonado para telecomunicacion digital

Country Status (7)

Country Link
US (1) US4547633A (es)
EP (1) EP0111832B1 (es)
JP (1) JPS59117363A (es)
BE (1) BE898423R (es)
CH (1) CH661629A5 (es)
DE (2) DE3245588A1 (es)
ES (1) ES8503916A1 (es)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE434789B (sv) * 1982-12-21 1984-08-13 Ellemtel Utvecklings Ab Forfarande for detektering av farliga linjespenningar over en tvatradig linje
US4543524A (en) * 1983-07-20 1985-09-24 At&T Bell Laboratories Biased reactor maintenance termination unit
JPS61264852A (ja) * 1985-05-20 1986-11-22 Fujitsu Ltd ディジタル加入者線試験方式
JPS6281835A (ja) * 1985-10-04 1987-04-15 Ando Electric Co Ltd デ−タ監視装置
US4825459A (en) * 1985-12-30 1989-04-25 American Telephone And Telegraph Company Local loop test arrangement in an echo canceller based full duplex modem
JPH0740702B2 (ja) * 1986-03-06 1995-05-01 日本電気株式会社 リモ−トテスト回路
GB8625282D0 (en) * 1986-10-22 1986-11-26 British Telecomm Detecting faults in transmission lines
EP0327872B1 (de) * 1988-02-10 1992-07-22 Siemens Aktiengesellschaft Verfahren zur Prüfung und Fehleranalyse von elektrischen Schaltungsmoduln
US5319631A (en) * 1988-09-22 1994-06-07 Siemens Aktiengesellschaft Method for measuring in the subscriber area of an integrated services digital network system
DE3832491A1 (de) * 1988-09-22 1990-03-29 Siemens Ag Verfahren zum messen im teilnehmerbereich eines integrated services digital network (isdn)-systems
DE3843785A1 (de) * 1988-12-24 1990-07-12 Standard Elektrik Lorenz Ag Zugangseinrichtung fuer eine isdn-anschalteeinrichtung eines oeffentlichen endgeraets
AT401838B (de) * 1990-06-01 1996-12-27 Schrack Telecom Verfahren zur aufbereitung von signalen für die signalübertragung im basisband
US5179341A (en) * 1991-06-28 1993-01-12 Hewlett-Packard Company System and method for detecting an improper termination and a short circuit in a network
CH684853A5 (de) * 1993-02-04 1995-01-13 Alcatel Str Ag Verfahren zur Extraktion von Daten auf einer Zweidraht-Telephonleitung mit digitalem Datenverkehr.
DE69421815T2 (de) 1993-07-30 2000-06-21 British Telecomm Intelligente netzwerke
US5598420A (en) * 1993-10-08 1997-01-28 Abb Power T&D Company, Inc. Apparatus and method for generating a power signal for a power system from signals genenrated by a communication device
DE4417955A1 (de) * 1994-05-21 1995-11-23 Sel Alcatel Ag Verfahren zur Fehlerortung im Teilnehmeranschlußbereich
AUPN786896A0 (en) * 1996-02-02 1996-02-29 Telstra Corporation Limited A network fault system
DE19921850A1 (de) * 1999-05-11 2000-11-16 Bosch Gmbh Robert Verfahren zur Fehlersuche bei analogen Teilnehmeranschlüssen
US6898185B1 (en) * 1999-10-20 2005-05-24 Broadcom Corporation Diagnostics of cable and link performance for a high-speed communication system
US7239680B2 (en) * 2002-07-17 2007-07-03 Broadcom Corporation Methods for performing channel diagnostics
US7480326B2 (en) * 2002-07-17 2009-01-20 Broadcom Corporation Channel diagnostic systems and methods
US7023963B1 (en) * 2002-09-18 2006-04-04 Adtran, Inc. DSL line card echo canceler-based mechanism for locating telecommunication line fault
US7254217B2 (en) * 2002-12-12 2007-08-07 Adc Dsl Systems, Inc. Fault characterization using information indicative of echo
US7480367B2 (en) * 2002-12-12 2009-01-20 Adc Dsl Systems, Inc. Fault characterization using information indicative of echo
US8331430B2 (en) * 2006-08-02 2012-12-11 Broadcom Corporation Channel diagnostic systems and methods

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3637954A (en) * 1969-05-22 1972-01-25 Bell Telephone Labor Inc Method and apparatus for dynamic testing of echo suppressors in telephone trunk systems
US4021623A (en) * 1975-10-23 1977-05-03 Communications Satellite Corporation (Comsat) Automatic H-register clear for prevention of erroneous convolution in digital adaptive echo canceller
JPS6022858B2 (ja) * 1979-11-05 1985-06-04 日本電信電話株式会社 計算機制御による自動遠隔障害切分け方式

Also Published As

Publication number Publication date
JPS59117363A (ja) 1984-07-06
US4547633A (en) 1985-10-15
EP0111832B1 (de) 1987-09-02
ES527916A0 (es) 1985-03-16
DE3245588A1 (de) 1984-06-14
CH661629A5 (de) 1987-07-31
DE3373398D1 (en) 1987-10-08
BE898423R (fr) 1984-06-12
EP0111832A1 (de) 1984-06-27

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