JPS5564454A - Fault search system of photo transmission system - Google Patents

Fault search system of photo transmission system

Info

Publication number
JPS5564454A
JPS5564454A JP13820978A JP13820978A JPS5564454A JP S5564454 A JPS5564454 A JP S5564454A JP 13820978 A JP13820978 A JP 13820978A JP 13820978 A JP13820978 A JP 13820978A JP S5564454 A JPS5564454 A JP S5564454A
Authority
JP
Japan
Prior art keywords
terminal station
repeaters
search
fault
bpfs
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
JP13820978A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6138661B2 (ref
Inventor
Yuukou Mochida
Tadao Ogawa
Masanori Arai
Kazuo Yamaguchi
Nobuo Yamaguchi
Kiyoshi Takagi
Hiroo Kitasagami
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 JP13820978A priority Critical patent/JPS5564454A/ja
Publication of JPS5564454A publication Critical patent/JPS5564454A/ja
Publication of JPS6138661B2 publication Critical patent/JPS6138661B2/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)
  • Optical Communication System (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
JP13820978A 1978-11-09 1978-11-09 Fault search system of photo transmission system Granted JPS5564454A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13820978A JPS5564454A (en) 1978-11-09 1978-11-09 Fault search system of photo transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13820978A JPS5564454A (en) 1978-11-09 1978-11-09 Fault search system of photo transmission system

Publications (2)

Publication Number Publication Date
JPS5564454A true JPS5564454A (en) 1980-05-15
JPS6138661B2 JPS6138661B2 (ref) 1986-08-30

Family

ID=15216625

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13820978A Granted JPS5564454A (en) 1978-11-09 1978-11-09 Fault search system of photo transmission system

Country Status (1)

Country Link
JP (1) JPS5564454A (ref)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6259430A (ja) * 1985-09-09 1987-03-16 Nec Corp 回線監視方式

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6259430A (ja) * 1985-09-09 1987-03-16 Nec Corp 回線監視方式

Also Published As

Publication number Publication date
JPS6138661B2 (ref) 1986-08-30

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