JPS5732150A - Optical communication switching transmission system - Google Patents

Optical communication switching transmission system

Info

Publication number
JPS5732150A
JPS5732150A JP10719180A JP10719180A JPS5732150A JP S5732150 A JPS5732150 A JP S5732150A JP 10719180 A JP10719180 A JP 10719180A JP 10719180 A JP10719180 A JP 10719180A JP S5732150 A JPS5732150 A JP S5732150A
Authority
JP
Japan
Prior art keywords
optical
terminal station
transmission
mixing
transmission system
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
JP10719180A
Other languages
Japanese (ja)
Inventor
Koichi Oota
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 JP10719180A priority Critical patent/JPS5732150A/en
Publication of JPS5732150A publication Critical patent/JPS5732150A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/74—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus

Landscapes

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

Abstract

PURPOSE:To improve the reliability of a system by providing an optical switch for transmission-line switching between an optical transmitter-receiver and an optical branching and mixing device which are constituent elements of each terminal station. CONSTITUTION:At a terminal station A of multiple constitution, an optical switch 8a is provided between optical transmitters 1 and 2, and an optical branching device 3 having an optical mixing function. At a terminal station B, an optical switch 8b is also provided between optical transmitters 1 and 2, and an optical mixing device 3 having an optical mixing functon. If a fault occurs to either one of optical fibers 4 and 7 as an optica transmission line, the device is so constituted that the transmission-line is switched to the other optical fiber side on whch a fault is not generated.
JP10719180A 1980-08-06 1980-08-06 Optical communication switching transmission system Pending JPS5732150A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10719180A JPS5732150A (en) 1980-08-06 1980-08-06 Optical communication switching transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10719180A JPS5732150A (en) 1980-08-06 1980-08-06 Optical communication switching transmission system

Publications (1)

Publication Number Publication Date
JPS5732150A true JPS5732150A (en) 1982-02-20

Family

ID=14452772

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10719180A Pending JPS5732150A (en) 1980-08-06 1980-08-06 Optical communication switching transmission system

Country Status (1)

Country Link
JP (1) JPS5732150A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0178109A2 (en) * 1984-10-05 1986-04-16 Stc Plc High-reliability optical transmission systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0178109A2 (en) * 1984-10-05 1986-04-16 Stc Plc High-reliability optical transmission systems

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