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JPS57138253A - Direct reading system for circuit level - Google Patents

Direct reading system for circuit level

Info

Publication number
JPS57138253A
JPS57138253A JP2397681A JP2397681A JPS57138253A JP S57138253 A JPS57138253 A JP S57138253A JP 2397681 A JP2397681 A JP 2397681A JP 2397681 A JP2397681 A JP 2397681A JP S57138253 A JPS57138253 A JP S57138253A
Authority
JP
Japan
Prior art keywords
circuit
level
domestic
international
meter
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
JP2397681A
Other languages
Japanese (ja)
Inventor
Shinji Hiratsuka
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP2397681A priority Critical patent/JPS57138253A/en
Publication of JPS57138253A publication Critical patent/JPS57138253A/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
    • H04M3/32—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for lines between exchanges

Landscapes

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

Abstract

PURPOSE:To directly read the measured levels of international and domestic circuits, differing in level diagram, on a meter, by providing an international-side absolute-level switching circuit and a domestic-side absolute-level switching circuit, and their switching circuit and level meter. CONSTITUTION:For the level measurement of an international circuit 4, a monitor line 7 is inserted at the equipment position for the international circuit to be tested in a circuit bracketing device 6, and a value on a level meter 12 in a circuit test board 8 is read through an international-side absolute-level converting circuit 10, thus measuring the level of the international circuit. For the level measurement of a domestic circuit 5, the monitor line 7 is connected to the level meter 12 by a switching device 9 via a domestic-side absolute-level converting circuit 11 through keying operation on the console panel 13 of the circuit test board 8, and also inserted to the equipment position for the domestic circuit to be tested in the circuit bracketing device 6, thus directly reading the measured level of the domestic side on the level meter 12.
JP2397681A 1981-02-20 1981-02-20 Direct reading system for circuit level Pending JPS57138253A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2397681A JPS57138253A (en) 1981-02-20 1981-02-20 Direct reading system for circuit level

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2397681A JPS57138253A (en) 1981-02-20 1981-02-20 Direct reading system for circuit level

Publications (1)

Publication Number Publication Date
JPS57138253A true JPS57138253A (en) 1982-08-26

Family

ID=12125580

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2397681A Pending JPS57138253A (en) 1981-02-20 1981-02-20 Direct reading system for circuit level

Country Status (1)

Country Link
JP (1) JPS57138253A (en)

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