JPH039670B2 - - Google Patents

Info

Publication number
JPH039670B2
JPH039670B2 JP58009536A JP953683A JPH039670B2 JP H039670 B2 JPH039670 B2 JP H039670B2 JP 58009536 A JP58009536 A JP 58009536A JP 953683 A JP953683 A JP 953683A JP H039670 B2 JPH039670 B2 JP H039670B2
Authority
JP
Japan
Prior art keywords
signal
subscriber line
exchange
subscriber
signals
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.)
Expired - Lifetime
Application number
JP58009536A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59134955A (ja
Inventor
Hiroaki Sato
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 JP953683A priority Critical patent/JPS59134955A/ja
Publication of JPS59134955A publication Critical patent/JPS59134955A/ja
Publication of JPH039670B2 publication Critical patent/JPH039670B2/ja
Granted 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
    • H04M3/302—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop using modulation techniques for copper pairs
    • H04M3/303—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop using modulation techniques for copper pairs and using PCM multiplexers, e.g. pair gain systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
JP953683A 1983-01-24 1983-01-24 信号監視方式 Granted JPS59134955A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP953683A JPS59134955A (ja) 1983-01-24 1983-01-24 信号監視方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP953683A JPS59134955A (ja) 1983-01-24 1983-01-24 信号監視方式

Publications (2)

Publication Number Publication Date
JPS59134955A JPS59134955A (ja) 1984-08-02
JPH039670B2 true JPH039670B2 (https=) 1991-02-08

Family

ID=11722985

Family Applications (1)

Application Number Title Priority Date Filing Date
JP953683A Granted JPS59134955A (ja) 1983-01-24 1983-01-24 信号監視方式

Country Status (1)

Country Link
JP (1) JPS59134955A (https=)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55105465A (en) * 1979-02-06 1980-08-13 Nec Corp Test system for remote station subscriber
JPS6035866B2 (ja) * 1980-04-21 1985-08-16 沖電気工業株式会社 指定監査方式

Also Published As

Publication number Publication date
JPS59134955A (ja) 1984-08-02

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