JPS5719902B2 - - Google Patents

Info

Publication number
JPS5719902B2
JPS5719902B2 JP1456377A JP1456377A JPS5719902B2 JP S5719902 B2 JPS5719902 B2 JP S5719902B2 JP 1456377 A JP1456377 A JP 1456377A JP 1456377 A JP1456377 A JP 1456377A JP S5719902 B2 JPS5719902 B2 JP S5719902B2
Authority
JP
Japan
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
JP1456377A
Other languages
Japanese (ja)
Other versions
JPS53100701A (en
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 filed Critical
Priority to JP1456377A priority Critical patent/JPS53100701A/en
Publication of JPS53100701A publication Critical patent/JPS53100701A/en
Publication of JPS5719902B2 publication Critical patent/JPS5719902B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/29—Repeaters

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Dc Digital Transmission (AREA)
  • Optical Communication System (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
JP1456377A 1977-02-15 1977-02-15 Transmission relay monitor system for optical pcm group Granted JPS53100701A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1456377A JPS53100701A (en) 1977-02-15 1977-02-15 Transmission relay monitor system for optical pcm group

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1456377A JPS53100701A (en) 1977-02-15 1977-02-15 Transmission relay monitor system for optical pcm group

Publications (2)

Publication Number Publication Date
JPS53100701A JPS53100701A (en) 1978-09-02
JPS5719902B2 true JPS5719902B2 (en) 1982-04-24

Family

ID=11864613

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1456377A Granted JPS53100701A (en) 1977-02-15 1977-02-15 Transmission relay monitor system for optical pcm group

Country Status (1)

Country Link
JP (1) JPS53100701A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60192440A (en) * 1984-03-14 1985-09-30 Nec Corp Line quality supervisory circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51136204A (en) * 1975-05-21 1976-11-25 Fujitsu Ltd Light pcm group transmission relay monitoring

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51136204A (en) * 1975-05-21 1976-11-25 Fujitsu Ltd Light pcm group transmission relay monitoring

Also Published As

Publication number Publication date
JPS53100701A (en) 1978-09-02

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