JPS58205340A - 光出力信号切換回路 - Google Patents

光出力信号切換回路

Info

Publication number
JPS58205340A
JPS58205340A JP57088375A JP8837582A JPS58205340A JP S58205340 A JPS58205340 A JP S58205340A JP 57088375 A JP57088375 A JP 57088375A JP 8837582 A JP8837582 A JP 8837582A JP S58205340 A JPS58205340 A JP S58205340A
Authority
JP
Japan
Prior art keywords
circuit
signal
optical
switching
electrical
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
JP57088375A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6343010B2 (enExample
Inventor
Kazuhiro Yuki
和広 結城
Shigeaki Saito
斎藤　重明
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP57088375A priority Critical patent/JPS58205340A/ja
Publication of JPS58205340A publication Critical patent/JPS58205340A/ja
Publication of JPS6343010B2 publication Critical patent/JPS6343010B2/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
    • H04B10/03—Arrangements for fault recovery
    • H04B10/032—Arrangements for fault recovery using working and protection systems

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)
  • Optical Communication System (AREA)
JP57088375A 1982-05-25 1982-05-25 光出力信号切換回路 Granted JPS58205340A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57088375A JPS58205340A (ja) 1982-05-25 1982-05-25 光出力信号切換回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57088375A JPS58205340A (ja) 1982-05-25 1982-05-25 光出力信号切換回路

Publications (2)

Publication Number Publication Date
JPS58205340A true JPS58205340A (ja) 1983-11-30
JPS6343010B2 JPS6343010B2 (enExample) 1988-08-26

Family

ID=13941041

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57088375A Granted JPS58205340A (ja) 1982-05-25 1982-05-25 光出力信号切換回路

Country Status (1)

Country Link
JP (1) JPS58205340A (enExample)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5271103A (en) * 1975-12-10 1977-06-14 Nec Corp Changeover device without cutoff of radiotelegraphic apparatus
JPS5463603A (en) * 1977-10-29 1979-05-22 Fujitsu Ltd Supervisory control system in luminous source double constitution
JPS5765932A (en) * 1980-10-09 1982-04-21 Fujitsu Ltd Switching system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5271103A (en) * 1975-12-10 1977-06-14 Nec Corp Changeover device without cutoff of radiotelegraphic apparatus
JPS5463603A (en) * 1977-10-29 1979-05-22 Fujitsu Ltd Supervisory control system in luminous source double constitution
JPS5765932A (en) * 1980-10-09 1982-04-21 Fujitsu Ltd Switching system

Also Published As

Publication number Publication date
JPS6343010B2 (enExample) 1988-08-26

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