JPS56158567A - Transmission system of measuring signal - Google Patents

Transmission system of measuring signal

Info

Publication number
JPS56158567A
JPS56158567A JP6180880A JP6180880A JPS56158567A JP S56158567 A JPS56158567 A JP S56158567A JP 6180880 A JP6180880 A JP 6180880A JP 6180880 A JP6180880 A JP 6180880A JP S56158567 A JPS56158567 A JP S56158567A
Authority
JP
Japan
Prior art keywords
measuring signal
value
integration
integration value
voltage
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.)
Pending
Application number
JP6180880A
Other languages
Japanese (ja)
Inventor
Takashi Morita
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP6180880A priority Critical patent/JPS56158567A/en
Publication of JPS56158567A publication Critical patent/JPS56158567A/en
Pending 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
    • 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
    • H04M3/301—Circuit arrangements at the subscriber's side of the line

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Abstract

PURPOSE:To increase the economy and reliability, by integrating the original current and transmitting the measuring signal corresponding to the integration value so that the transient response current with steep or in rapid change can be measured from a remote location stably. CONSTITUTION:When a measuring start contact 3A is operated, a voltage proportional to a steep transient response current determined with a termination resistor 3B of a capacitor Cr is input to an integration circuit 3C and integrated with a resistor R and a capacitor C for the output. After a given time determined with a time constant, the integration value is almost at a constant value. A measuring signal transmission circuit 3D receives this integration value and converts a voltage into frequency after a given time continuously from the beginning or when the integration value is almost at a constant value, to form the measuring signal for the transmission to a transmission line 4. A given conversion is made to a received measuring signal at a display section 5, and a value corresponding to the output voltage of an integration circuit 3C is indicated on a voltmeter 5B.
JP6180880A 1980-05-12 1980-05-12 Transmission system of measuring signal Pending JPS56158567A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6180880A JPS56158567A (en) 1980-05-12 1980-05-12 Transmission system of measuring signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6180880A JPS56158567A (en) 1980-05-12 1980-05-12 Transmission system of measuring signal

Publications (1)

Publication Number Publication Date
JPS56158567A true JPS56158567A (en) 1981-12-07

Family

ID=13181752

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6180880A Pending JPS56158567A (en) 1980-05-12 1980-05-12 Transmission system of measuring signal

Country Status (1)

Country Link
JP (1) JPS56158567A (en)

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