JPS5271908A - Abnormal supervising system of signal transmission system - Google Patents

Abnormal supervising system of signal transmission system

Info

Publication number
JPS5271908A
JPS5271908A JP50147318A JP14731875A JPS5271908A JP S5271908 A JPS5271908 A JP S5271908A JP 50147318 A JP50147318 A JP 50147318A JP 14731875 A JP14731875 A JP 14731875A JP S5271908 A JPS5271908 A JP S5271908A
Authority
JP
Japan
Prior art keywords
abnormal
signal transmission
supervising
transmission system
output
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.)
Pending
Application number
JP50147318A
Other languages
English (en)
Inventor
Mitsuru Nakamura
Atsuhiro Yoshizaki
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP50147318A priority Critical patent/JPS5271908A/ja
Publication of JPS5271908A publication Critical patent/JPS5271908A/ja
Pending legal-status Critical Current

Links

Landscapes

  • Dc Digital Transmission (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)
JP50147318A 1975-12-12 1975-12-12 Abnormal supervising system of signal transmission system Pending JPS5271908A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50147318A JPS5271908A (en) 1975-12-12 1975-12-12 Abnormal supervising system of signal transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50147318A JPS5271908A (en) 1975-12-12 1975-12-12 Abnormal supervising system of signal transmission system

Publications (1)

Publication Number Publication Date
JPS5271908A true JPS5271908A (en) 1977-06-15

Family

ID=15427463

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50147318A Pending JPS5271908A (en) 1975-12-12 1975-12-12 Abnormal supervising system of signal transmission system

Country Status (1)

Country Link
JP (1) JPS5271908A (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5431213A (en) * 1977-08-13 1979-03-08 Fujitsu Ltd Data transmission system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5231629A (en) * 1975-06-20 1977-03-10 Fuji Electric Co Ltd Data communiction system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5231629A (en) * 1975-06-20 1977-03-10 Fuji Electric Co Ltd Data communiction system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5431213A (en) * 1977-08-13 1979-03-08 Fujitsu Ltd Data transmission system

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