JPS5792934A - Switching system for optical switch - Google Patents

Switching system for optical switch

Info

Publication number
JPS5792934A
JPS5792934A JP55167753A JP16775380A JPS5792934A JP S5792934 A JPS5792934 A JP S5792934A JP 55167753 A JP55167753 A JP 55167753A JP 16775380 A JP16775380 A JP 16775380A JP S5792934 A JPS5792934 A JP S5792934A
Authority
JP
Japan
Prior art keywords
equipment
terminal
equipments
center equipment
optical
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
JP55167753A
Other languages
Japanese (ja)
Inventor
Hiroshi Kadonaga
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP55167753A priority Critical patent/JPS5792934A/en
Publication of JPS5792934A publication Critical patent/JPS5792934A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/009—Topology aspects
    • H04Q2011/0092—Ring

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Small-Scale Networks (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To control terminal equipments in a center equipment, by transmitting control commands from the center equipment to terminal equipments in the communication system where the center equipment and plural terminal equipments are connected by a loop optical transmission line. CONSTITUTION:A center equipment 10 and plural terminal equipments 11-13 are connected into a loop by an optical transmission line 14. The center equipment 10 is provided with a controlling part 41, a transmitting part 16, a receiving part 19, an electrophoto transducer 17 and a photoelectric transducer 18, and terminal equipments are provided with control parts 38-40, photoelectric transducers 23-25, electro-optic transducers 26-28, optical switches 32-34, and optical branching equipments 35-37, respectively. In each terminal equipment, when the power is turned off, the optical switch is switched as shown by the solid line, and the terminal equipment is by-passed. When the power is supplied by a power source operating part, the optical switch is switched as shown by the dotted line, and the terminal equipment is connected to the line.
JP55167753A 1980-11-28 1980-11-28 Switching system for optical switch Pending JPS5792934A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55167753A JPS5792934A (en) 1980-11-28 1980-11-28 Switching system for optical switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55167753A JPS5792934A (en) 1980-11-28 1980-11-28 Switching system for optical switch

Publications (1)

Publication Number Publication Date
JPS5792934A true JPS5792934A (en) 1982-06-09

Family

ID=15855454

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55167753A Pending JPS5792934A (en) 1980-11-28 1980-11-28 Switching system for optical switch

Country Status (1)

Country Link
JP (1) JPS5792934A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58219534A (en) * 1982-06-15 1983-12-21 Fujitsu Ltd Optical node switch
EP1612973A1 (en) * 2004-06-29 2006-01-04 Pacific Industrial Co., Ltd. Optical lan device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58219534A (en) * 1982-06-15 1983-12-21 Fujitsu Ltd Optical node switch
EP1612973A1 (en) * 2004-06-29 2006-01-04 Pacific Industrial Co., Ltd. Optical lan device
US7295776B2 (en) 2004-06-29 2007-11-13 Pacific Industrial Co., Ltd. Optical LAN device

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