SE8900099D0 - DEVICE FOR IDENTIFICATION OF TRAFFIC ON PARK CABLE - Google Patents

DEVICE FOR IDENTIFICATION OF TRAFFIC ON PARK CABLE

Info

Publication number
SE8900099D0
SE8900099D0 SE8900099A SE8900099A SE8900099D0 SE 8900099 D0 SE8900099 D0 SE 8900099D0 SE 8900099 A SE8900099 A SE 8900099A SE 8900099 A SE8900099 A SE 8900099A SE 8900099 D0 SE8900099 D0 SE 8900099D0
Authority
SE
Sweden
Prior art keywords
frequency
indicator
limiter
output signal
traffic
Prior art date
Application number
SE8900099A
Other languages
Swedish (sv)
Other versions
SE8900099L (en
SE462632B (en
Inventor
A Latour-Henner
Original Assignee
Televerket
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 Televerket filed Critical Televerket
Priority to SE8900099A priority Critical patent/SE462632B/en
Publication of SE8900099D0 publication Critical patent/SE8900099D0/en
Publication of SE8900099L publication Critical patent/SE8900099L/en
Publication of SE462632B publication Critical patent/SE462632B/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/16—Spectrum analysis; Fourier analysis
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/2209—Arrangements for supervision, monitoring or testing for lines also used for data transmission

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Dc Digital Transmission (AREA)

Abstract

The invention relates to an arrangement for identifying traffic in paired cables. The different layers of traffic are distinguished by different levels and frequency ranges. The arrangement comprises a limiter which is connected to the paired cable and transmits an output signal with essentially constant amplitude and a frequency which corresponds to the strongest frequency component of the input signal. The limiter can be constructed from inverters connected to an amplifier or from an amplifier with a Schmitt trigger. The limiter is connected to a frequency indicator which indicates within which frequency range the strongest frequency component lies. The frequency indicator can consist of monostable rockers or a counter and a decoder. The decoder interprets the output signal of the counter and can be constructed from a fixed gate network or a programmable memory. The output signal of the frequency indicator is connected to an indicator which indicates the frequency range concerned, for example by means of flashing light- emitting diodes. <IMAGE>
SE8900099A 1989-01-12 1989-01-12 Arrangement for identifying traffic lying within different frequency ranges in paired cables SE462632B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE8900099A SE462632B (en) 1989-01-12 1989-01-12 Arrangement for identifying traffic lying within different frequency ranges in paired cables

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8900099A SE462632B (en) 1989-01-12 1989-01-12 Arrangement for identifying traffic lying within different frequency ranges in paired cables

Publications (3)

Publication Number Publication Date
SE8900099D0 true SE8900099D0 (en) 1989-01-12
SE8900099L SE8900099L (en) 1990-07-13
SE462632B SE462632B (en) 1990-07-30

Family

ID=20374730

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8900099A SE462632B (en) 1989-01-12 1989-01-12 Arrangement for identifying traffic lying within different frequency ranges in paired cables

Country Status (1)

Country Link
SE (1) SE462632B (en)

Also Published As

Publication number Publication date
SE8900099L (en) 1990-07-13
SE462632B (en) 1990-07-30

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