JPS56149150A - Monitor system of digital repeater - Google Patents

Monitor system of digital repeater

Info

Publication number
JPS56149150A
JPS56149150A JP5322280A JP5322280A JPS56149150A JP S56149150 A JPS56149150 A JP S56149150A JP 5322280 A JP5322280 A JP 5322280A JP 5322280 A JP5322280 A JP 5322280A JP S56149150 A JPS56149150 A JP S56149150A
Authority
JP
Japan
Prior art keywords
repeater
monitor
transmission line
discrimination level
repeating
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.)
Granted
Application number
JP5322280A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6336590B2 (enExample
Inventor
Mamoru Yosogi
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP5322280A priority Critical patent/JPS56149150A/ja
Publication of JPS56149150A publication Critical patent/JPS56149150A/ja
Publication of JPS6336590B2 publication Critical patent/JPS6336590B2/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
    • H04B17/401—Monitoring; Testing of relay systems with selective localization
    • H04B17/402—Monitoring; Testing of relay systems with selective localization using different frequencies
    • H04B17/404—Monitoring; Testing of relay systems with selective localization using different frequencies selected by local filters

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Dc Digital Transmission (AREA)
JP5322280A 1980-04-21 1980-04-21 Monitor system of digital repeater Granted JPS56149150A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5322280A JPS56149150A (en) 1980-04-21 1980-04-21 Monitor system of digital repeater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5322280A JPS56149150A (en) 1980-04-21 1980-04-21 Monitor system of digital repeater

Publications (2)

Publication Number Publication Date
JPS56149150A true JPS56149150A (en) 1981-11-18
JPS6336590B2 JPS6336590B2 (enExample) 1988-07-20

Family

ID=12936789

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5322280A Granted JPS56149150A (en) 1980-04-21 1980-04-21 Monitor system of digital repeater

Country Status (1)

Country Link
JP (1) JPS56149150A (enExample)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5493911A (en) * 1978-01-09 1979-07-25 Kokusai Denshin Denwa Co Ltd Optical repeating transmission line trouble monitoring system
JPH09131013A (ja) * 1995-10-31 1997-05-16 Matsushita Electric Ind Co Ltd モールドモータの固定子

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5493911A (en) * 1978-01-09 1979-07-25 Kokusai Denshin Denwa Co Ltd Optical repeating transmission line trouble monitoring system
JPH09131013A (ja) * 1995-10-31 1997-05-16 Matsushita Electric Ind Co Ltd モールドモータの固定子

Also Published As

Publication number Publication date
JPS6336590B2 (enExample) 1988-07-20

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