CA2163289A1 - Cross-Talk Measurement Apparatus with Near-End Compensation - Google Patents

Cross-Talk Measurement Apparatus with Near-End Compensation

Info

Publication number
CA2163289A1
CA2163289A1 CA2163289A CA2163289A CA2163289A1 CA 2163289 A1 CA2163289 A1 CA 2163289A1 CA 2163289 A CA2163289 A CA 2163289A CA 2163289 A CA2163289 A CA 2163289A CA 2163289 A1 CA2163289 A1 CA 2163289A1
Authority
CA
Canada
Prior art keywords
cross
talk
measurement
accuracy
pulse
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.)
Granted
Application number
CA2163289A
Other languages
French (fr)
Other versions
CA2163289C (en
Inventor
Jeffrey S. Bottman
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.)
Fluke Corp
Original Assignee
Fluke 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 Fluke Corp filed Critical Fluke Corp
Publication of CA2163289A1 publication Critical patent/CA2163289A1/en
Application granted granted Critical
Publication of CA2163289C publication Critical patent/CA2163289C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/46—Monitoring; Testing
    • H04B3/487—Testing crosstalk effects

Abstract

A pulse-based cable crosstalk measurement instrument provides near-end cross talk (NEXT) information for characterizing the performance of local area network (LAN) cable systems. Accuracy of the cross-talk measurement is enhanced by measuring and mathematically removing the cross-talk effects of the near-end connector. Accuracy of the cross-talk measurement is further enhanced by conducting the cross-talk measurement with pulses of differing pulse widths selected to have increased pulse energy in frequency ranges of interest. A composite cross-talk response using the individual cross-talk responses of the individual pulse widths concatenated together is created and then compared with an industry-standard pass fail limit to provide a pass-fail decision on a LAN cable test system under test.
CA002163289A 1995-01-27 1995-11-20 Cross-talk measurement apparatus with near-end compensation Expired - Fee Related CA2163289C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/379,230 US5532603A (en) 1995-01-27 1995-01-27 Cross-talk measurement apparatus with near-end compensation
US08/379,230 1995-01-27

Publications (2)

Publication Number Publication Date
CA2163289A1 true CA2163289A1 (en) 1996-07-28
CA2163289C CA2163289C (en) 2000-09-26

Family

ID=23496368

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002163289A Expired - Fee Related CA2163289C (en) 1995-01-27 1995-11-20 Cross-talk measurement apparatus with near-end compensation

Country Status (5)

Country Link
US (1) US5532603A (en)
EP (1) EP0724338B1 (en)
JP (1) JP2745297B2 (en)
CA (1) CA2163289C (en)
DE (1) DE69530276T2 (en)

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Also Published As

Publication number Publication date
JPH08254557A (en) 1996-10-01
DE69530276D1 (en) 2003-05-15
US5532603A (en) 1996-07-02
EP0724338B1 (en) 2003-04-09
JP2745297B2 (en) 1998-04-28
DE69530276T2 (en) 2004-03-25
EP0724338A2 (en) 1996-07-31
EP0724338A3 (en) 1996-08-28
CA2163289C (en) 2000-09-26

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