DE102004014197A1 - Circuit arrangement and method for designing networks - Google Patents

Circuit arrangement and method for designing networks Download PDF

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Publication number
DE102004014197A1
DE102004014197A1 DE200410014197 DE102004014197A DE102004014197A1 DE 102004014197 A1 DE102004014197 A1 DE 102004014197A1 DE 200410014197 DE200410014197 DE 200410014197 DE 102004014197 A DE102004014197 A DE 102004014197A DE 102004014197 A1 DE102004014197 A1 DE 102004014197A1
Authority
DE
Germany
Prior art keywords
circuit arrangement
subscriber line
designing networks
attenuation
line
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.)
Withdrawn
Application number
DE200410014197
Other languages
German (de)
Inventor
Roland Angermueller
Paul Kunisch
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.)
Siemens Corp
Original Assignee
Siemens Corp
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 Corp filed Critical Siemens Corp
Priority to DE200410014197 priority Critical patent/DE102004014197A1/en
Priority to PCT/EP2005/051122 priority patent/WO2005094048A1/en
Publication of DE102004014197A1 publication Critical patent/DE102004014197A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/005—Interface circuits for subscriber lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/40—Applications of speech amplifiers
    • 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
    • H04M3/305—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop testing of physical copper line parameters, e.g. capacitance or resistance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/006—Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

Mit der Schaltungsanordnung und dem dazugehörigen Verfahren werden die frequenzabhängige Betriebsdämpfung und die Dämpfungsverzerrungen von Dual-Ton-Multifrequenzy DTMF-Tönen am Ende einer Teilnehmeranschlussleitung gemessen und daraus die Leitungsimpedanzen der Teilnehmeranschlussleitung bestimmt. Je nach Ausprägung der Teilnehmeranschlussleitung wird dann die individuelle Nachbildimpedanz der Teilnehmeranschlussleitung eingestellt.With the circuit arrangement and the associated method, the frequency-dependent operating attenuation and the attenuation distortions of dual-tone multifrequency DTMF tones are measured at the end of a subscriber line, and from this the line impedances of the subscriber line are determined. Depending on the characteristics of the subscriber line, the individual afterimage impedance of the subscriber line is then set.

DE200410014197 2004-03-23 2004-03-23 Circuit arrangement and method for designing networks Withdrawn DE102004014197A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE200410014197 DE102004014197A1 (en) 2004-03-23 2004-03-23 Circuit arrangement and method for designing networks
PCT/EP2005/051122 WO2005094048A1 (en) 2004-03-23 2005-03-11 Circuit arrangement and method for configuring networks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200410014197 DE102004014197A1 (en) 2004-03-23 2004-03-23 Circuit arrangement and method for designing networks

Publications (1)

Publication Number Publication Date
DE102004014197A1 true DE102004014197A1 (en) 2005-10-20

Family

ID=34961771

Family Applications (1)

Application Number Title Priority Date Filing Date
DE200410014197 Withdrawn DE102004014197A1 (en) 2004-03-23 2004-03-23 Circuit arrangement and method for designing networks

Country Status (2)

Country Link
DE (1) DE102004014197A1 (en)
WO (1) WO2005094048A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD261692A1 (en) * 1987-06-12 1988-11-02 Nachrichten Elektronik Zft METHOD FOR AUTOMATICALLY ADJUSTING A TRAINING NETWORK TO THE IMPEDANCE OF A TWO-WIRE CONNECTION OF A FORK SWITCH IN TELEPHONE TRANSMISSION APPARATUS
DE10102867A1 (en) * 2001-01-23 2002-09-05 Siemens Ag Analysis method for the data transfer properties of a data carrier in the form of twin wire cable uses remotely controlled modem with fast Fourier transform module for analysis of signal
DE10119793A1 (en) * 2001-04-23 2002-10-31 Siemens Ag Method and circuit arrangement for impedance matching of an analog telecommunication connection

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5258713A (en) * 1992-04-16 1993-11-02 Northern Telecom Limited Impedance generator for a telephone line interface circuit
FI101436B1 (en) * 1996-10-02 1998-06-15 Ericsson Telefon Ab L M Conducting circuit and method for a conducting circuit
WO2001049012A1 (en) * 1999-12-27 2001-07-05 Nortel Networks Limited Line interface circuit with two feedback loops to synthesise required impedance
DE10050336C1 (en) * 2000-10-11 2002-07-25 Infineon Technologies Ag Programmable echo compensation filter for transceiver uses programmable resistance circuits with parallel resistors and associated controlled switches

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD261692A1 (en) * 1987-06-12 1988-11-02 Nachrichten Elektronik Zft METHOD FOR AUTOMATICALLY ADJUSTING A TRAINING NETWORK TO THE IMPEDANCE OF A TWO-WIRE CONNECTION OF A FORK SWITCH IN TELEPHONE TRANSMISSION APPARATUS
DE10102867A1 (en) * 2001-01-23 2002-09-05 Siemens Ag Analysis method for the data transfer properties of a data carrier in the form of twin wire cable uses remotely controlled modem with fast Fourier transform module for analysis of signal
DE10119793A1 (en) * 2001-04-23 2002-10-31 Siemens Ag Method and circuit arrangement for impedance matching of an analog telecommunication connection

Also Published As

Publication number Publication date
WO2005094048A1 (en) 2005-10-06

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Legal Events

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OP8 Request for examination as to paragraph 44 patent law
8139 Disposal/non-payment of the annual fee