JPS57194655A - Subscriber line test leading-in system - Google Patents

Subscriber line test leading-in system

Info

Publication number
JPS57194655A
JPS57194655A JP7863281A JP7863281A JPS57194655A JP S57194655 A JPS57194655 A JP S57194655A JP 7863281 A JP7863281 A JP 7863281A JP 7863281 A JP7863281 A JP 7863281A JP S57194655 A JPS57194655 A JP S57194655A
Authority
JP
Japan
Prior art keywords
line
test
operated
testing device
call signal
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
JP7863281A
Other languages
Japanese (ja)
Inventor
Kiyohiko Abe
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 JP7863281A priority Critical patent/JPS57194655A/en
Publication of JPS57194655A publication Critical patent/JPS57194655A/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

Landscapes

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

Abstract

PURPOSE:To continuously test a subscriber line by a simple operation, or to optionally test a specific line, by switching a call signal sending line of a subscribers' common circuit by disignating and controlling a line from a testing device, and leading it into the testing device. CONSTITUTION:When executing a subscriber line test, call signal sending control relays RG1-RGn of a subscribers' common circuit 7 are operated in order by operating and controlling an indicating counting circuit CNTR in a testing device 6 by use of a line driving key ST, and by its contact, a call signal sending relay R is operated, and a subscriber circuit 4 is set as call signal sending state. On the other hand, since a test line leading-in key TEST is operated, a test line leading-in relay T of the subscribers' common circuit 7 is operated. Accordingly, subscriber lines LA, LB are led into the testing device 6 by the contacts t1, t2, and desired various subscriber line tests can be executed.
JP7863281A 1981-05-26 1981-05-26 Subscriber line test leading-in system Pending JPS57194655A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7863281A JPS57194655A (en) 1981-05-26 1981-05-26 Subscriber line test leading-in system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7863281A JPS57194655A (en) 1981-05-26 1981-05-26 Subscriber line test leading-in system

Publications (1)

Publication Number Publication Date
JPS57194655A true JPS57194655A (en) 1982-11-30

Family

ID=13667242

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7863281A Pending JPS57194655A (en) 1981-05-26 1981-05-26 Subscriber line test leading-in system

Country Status (1)

Country Link
JP (1) JPS57194655A (en)

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