JPH0123015B2 - - Google Patents

Info

Publication number
JPH0123015B2
JPH0123015B2 JP56154618A JP15461881A JPH0123015B2 JP H0123015 B2 JPH0123015 B2 JP H0123015B2 JP 56154618 A JP56154618 A JP 56154618A JP 15461881 A JP15461881 A JP 15461881A JP H0123015 B2 JPH0123015 B2 JP H0123015B2
Authority
JP
Japan
Prior art keywords
circuit
power supply
line
polarity
power
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
Application number
JP56154618A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5856538A (ja
Inventor
Takeo Fukushima
Shinji Kajiwara
Masami Mizuguchi
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 JP56154618A priority Critical patent/JPS5856538A/ja
Publication of JPS5856538A publication Critical patent/JPS5856538A/ja
Publication of JPH0123015B2 publication Critical patent/JPH0123015B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/40—Monitoring; Testing of relay systems

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
JP56154618A 1981-09-29 1981-09-29 中継回線の給電区間内障害探査方式 Granted JPS5856538A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56154618A JPS5856538A (ja) 1981-09-29 1981-09-29 中継回線の給電区間内障害探査方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56154618A JPS5856538A (ja) 1981-09-29 1981-09-29 中継回線の給電区間内障害探査方式

Publications (2)

Publication Number Publication Date
JPS5856538A JPS5856538A (ja) 1983-04-04
JPH0123015B2 true JPH0123015B2 (enExample) 1989-04-28

Family

ID=15588110

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56154618A Granted JPS5856538A (ja) 1981-09-29 1981-09-29 中継回線の給電区間内障害探査方式

Country Status (1)

Country Link
JP (1) JPS5856538A (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01241228A (ja) * 1988-03-23 1989-09-26 Oki Electric Ind Co Ltd 信号中継装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5159217A (ja) * 1974-11-20 1976-05-24 Fujitsu Ltd Toransuresuhoshikiryohokokyudenzofukuki
JPS6028418B2 (ja) * 1977-09-22 1985-07-04 富士通株式会社 伝送路監視方式

Also Published As

Publication number Publication date
JPS5856538A (ja) 1983-04-04

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