JPS5765952A - Searching system for position of fault occurrence - Google Patents

Searching system for position of fault occurrence

Info

Publication number
JPS5765952A
JPS5765952A JP14163380A JP14163380A JPS5765952A JP S5765952 A JPS5765952 A JP S5765952A JP 14163380 A JP14163380 A JP 14163380A JP 14163380 A JP14163380 A JP 14163380A JP S5765952 A JPS5765952 A JP S5765952A
Authority
JP
Japan
Prior art keywords
line
fault
contacts
switches
searching
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
JP14163380A
Other languages
Japanese (ja)
Inventor
Masakazu Mori
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP14163380A priority Critical patent/JPS5765952A/en
Publication of JPS5765952A publication Critical patent/JPS5765952A/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 Transmission In General (AREA)

Abstract

PURPOSE:To retrieve the position of a fault occurrence accurately and rapidly, by connecting input and output ends of up and down lines of respective repeating devices mutually by a fault searching line and transmitting a fault searching signal and returning this signal from respective repeating devices when a fault occurs. CONSTITUTION:Optical switches S1a and S1b, which have contacts (b) connected to up and down line input terminals 21 and 22 of a repeating device 2 and have movable pieces connected to up and down lines l12 and l32, and a fault searching line L1 connected between contacts (a) of these switches are provided. Meanwhile, an optical switch S2a which has the contact (b) conneted to a line l23 and has the movable piece connected to an up line output terminal 23, an optical switch S2b which has the contact (b) connected to a down line output terminal 24 and has the movable piece connected to a line l21, and a fault searching line L2 connected between contacts (a) of switches S2a and S2b are provided. Thus, movable pieces of swithces S1a, S1b, S2a, S2b which are connected to contacts (b) normally are connected to contacts (a) by different switch driving signals from a monitor station 1, thereby discriminating whether the fault exists in the repeating device or on lines rapidly.
JP14163380A 1980-10-09 1980-10-09 Searching system for position of fault occurrence Pending JPS5765952A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14163380A JPS5765952A (en) 1980-10-09 1980-10-09 Searching system for position of fault occurrence

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14163380A JPS5765952A (en) 1980-10-09 1980-10-09 Searching system for position of fault occurrence

Publications (1)

Publication Number Publication Date
JPS5765952A true JPS5765952A (en) 1982-04-21

Family

ID=15296573

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14163380A Pending JPS5765952A (en) 1980-10-09 1980-10-09 Searching system for position of fault occurrence

Country Status (1)

Country Link
JP (1) JPS5765952A (en)

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