JPS5765932A - Switching system - Google Patents

Switching system

Info

Publication number
JPS5765932A
JPS5765932A JP55141618A JP14161880A JPS5765932A JP S5765932 A JPS5765932 A JP S5765932A JP 55141618 A JP55141618 A JP 55141618A JP 14161880 A JP14161880 A JP 14161880A JP S5765932 A JPS5765932 A JP S5765932A
Authority
JP
Japan
Prior art keywords
light emitting
emitting element
output
optical fiber
fiber line
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
JP55141618A
Other languages
Japanese (ja)
Inventor
Yasuo Nagai
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 JP55141618A priority Critical patent/JPS5765932A/en
Publication of JPS5765932A publication Critical patent/JPS5765932A/en
Pending 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
    • H04B10/50—Transmitters

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To prevent a momentary break, by operating an auxiliary light emitting element, which is in a holding state, when degradation of a current light emitting element is detected and by operating both light emitting elements simultaneously in a time. CONSTITUTION:The light output of a current light emitting element 1 is led to a signal output terminal 5 through an optical fiber line 8, a light output switch 7, and an optical fiber line 10. When the current light emitting element is degraded, this degradation is detected by a detector 4, and an auxiliary light emitting element 2 which is in a holding state is operated to generate an output. Thus, a mirror 14 starts moving to cut off the output of the current light emitting element 1 gradually and leads the output of the auxiliary light emitting element from an optical fiber line 9 to the optical fiber line 10. After completion of the switching of the light output, the current light emitting element becomes the holding state.
JP55141618A 1980-10-09 1980-10-09 Switching system Pending JPS5765932A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55141618A JPS5765932A (en) 1980-10-09 1980-10-09 Switching system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55141618A JPS5765932A (en) 1980-10-09 1980-10-09 Switching system

Publications (1)

Publication Number Publication Date
JPS5765932A true JPS5765932A (en) 1982-04-21

Family

ID=15296223

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55141618A Pending JPS5765932A (en) 1980-10-09 1980-10-09 Switching system

Country Status (1)

Country Link
JP (1) JPS5765932A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58191510A (en) * 1982-05-04 1983-11-08 Nec Corp Low noise amplifier
JPS58205340A (en) * 1982-05-25 1983-11-30 Nec Corp Switching circuit of optical output signal

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5448415A (en) * 1977-09-26 1979-04-17 Nippon Telegr & Teleph Corp <Ntt> Optical relay unit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5448415A (en) * 1977-09-26 1979-04-17 Nippon Telegr & Teleph Corp <Ntt> Optical relay unit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58191510A (en) * 1982-05-04 1983-11-08 Nec Corp Low noise amplifier
JPS58205340A (en) * 1982-05-25 1983-11-30 Nec Corp Switching circuit of optical output signal
JPS6343010B2 (en) * 1982-05-25 1988-08-26 Nippon Electric Co

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