ATE565T1 - CIRCUIT ARRANGEMENT FOR DETERMINING AND LOCATING FAULTS IN A TRANSMISSION SYSTEM FOR PULSE CODE MODULATED SIGNALS. - Google Patents

CIRCUIT ARRANGEMENT FOR DETERMINING AND LOCATING FAULTS IN A TRANSMISSION SYSTEM FOR PULSE CODE MODULATED SIGNALS.

Info

Publication number
ATE565T1
ATE565T1 AT79105230T AT79105230T ATE565T1 AT E565 T1 ATE565 T1 AT E565T1 AT 79105230 T AT79105230 T AT 79105230T AT 79105230 T AT79105230 T AT 79105230T AT E565 T1 ATE565 T1 AT E565T1
Authority
AT
Austria
Prior art keywords
pass filter
circuit arrangement
modulated signals
transmission system
signal path
Prior art date
Application number
AT79105230T
Other languages
German (de)
Inventor
Hans Georg Dipl.-Ing. Haerle
Josef Doemer
Original Assignee
Siemens Aktiengesellschaft
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 Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Application granted granted Critical
Publication of ATE565T1 publication Critical patent/ATE565T1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/40—Artificial lines; Networks simulating a line of certain length
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/40—Monitoring; Testing of relay systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Mechanical Operated Clutches (AREA)
  • Locating Faults (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Dc Digital Transmission (AREA)
  • Networks Using Active Elements (AREA)

Abstract

1. Circuit arrangement for the determination and location of faults in a transmission system, which has two transmission directions for pulse-code-modulated signals with intermediate stations which are to be checked and which for each transmission direction respectively contain an automatic, active attenuation equalizer and a preliminary equalizing stage which is connected preceding the equalizer in the signal path, characterized in that the preliminary equalizing stage is designed as high-pass filter (F1), that in the signal path, the attenuation equalizer (D) is followed by an active compensation low-pass filter (F2) which is so contrived that the product of the transmission functions of the high-pass filter (F1) and of the compensation low-pass filter (F2) is a constant, and that during the fault-locating operation, in the locating signal path, the attenuation equalizer (D) is preceded, via a second input, by an auxiliary low-pass filter (F3) which is so contrived that together with the compensation low-pass filter (F2) an equivalent network corresponding to a medium length cable is formed.
AT79105230T 1978-12-29 1979-12-17 CIRCUIT ARRANGEMENT FOR DETERMINING AND LOCATING FAULTS IN A TRANSMISSION SYSTEM FOR PULSE CODE MODULATED SIGNALS. ATE565T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2856679A DE2856679C3 (en) 1978-12-29 1978-12-29 Circuit arrangement for determining and locating errors in a transmission system for pulse code modulated signals
EP79105230A EP0012977B1 (en) 1978-12-29 1979-12-17 Circuit for detecting and locating faults in a transmission system for pulse code modulated signals

Publications (1)

Publication Number Publication Date
ATE565T1 true ATE565T1 (en) 1982-01-15

Family

ID=6058676

Family Applications (1)

Application Number Title Priority Date Filing Date
AT79105230T ATE565T1 (en) 1978-12-29 1979-12-17 CIRCUIT ARRANGEMENT FOR DETERMINING AND LOCATING FAULTS IN A TRANSMISSION SYSTEM FOR PULSE CODE MODULATED SIGNALS.

Country Status (4)

Country Link
EP (1) EP0012977B1 (en)
AT (1) ATE565T1 (en)
DE (1) DE2856679C3 (en)
NO (1) NO146077C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3635582A1 (en) * 1986-10-20 1988-04-21 Hoechst Ag METHOD FOR PURIFYING N-ACYL ASPARTAM

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3796971A (en) * 1971-10-21 1974-03-12 S Sherman Low-pass non-linear filter
DE2318246C3 (en) * 1973-04-11 1975-10-02 Siemens Ag, 1000 Berlin Und 8000 Muenchen Automatic active attenuation equalizer
DE2358272C2 (en) * 1973-11-22 1975-12-11 Siemens Ag, 1000 Berlin Und 8000 Muenchen Device for determining errors in a message transmission system for pulse code modulation

Also Published As

Publication number Publication date
DE2856679A1 (en) 1980-07-03
NO146077B (en) 1982-04-13
DE2856679B2 (en) 1981-05-07
NO146077C (en) 1982-08-11
EP0012977A1 (en) 1980-07-09
DE2856679C3 (en) 1982-02-11
NO794108L (en) 1980-07-01
EP0012977B1 (en) 1982-01-13

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee