JPS5567820A - Optical bus control unit - Google Patents

Optical bus control unit

Info

Publication number
JPS5567820A
JPS5567820A JP14023978A JP14023978A JPS5567820A JP S5567820 A JPS5567820 A JP S5567820A JP 14023978 A JP14023978 A JP 14023978A JP 14023978 A JP14023978 A JP 14023978A JP S5567820 A JPS5567820 A JP S5567820A
Authority
JP
Japan
Prior art keywords
optical
bus
exclusive right
control
units
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
JP14023978A
Other languages
Japanese (ja)
Inventor
Mitsuhiro Ishizaka
Shigeo Nakatsuka
Takane Kakuno
Tachiki Ichihashi
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP14023978A priority Critical patent/JPS5567820A/en
Publication of JPS5567820A publication Critical patent/JPS5567820A/en
Pending legal-status Critical Current

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  • Optical Communication System (AREA)

Abstract

PURPOSE: To secure a simple and assured control for the exclusive right of the optical bus by switching the bus exclusive right control signal via the optical switch and then giving the bus exclusive right to one of the several terminal units which received the reception test.
CONSTITUTION: The CPU containing bus control module 2 is connected to input/ output control modules 3a, 3b and so on connected with terminal units 4a, 4b and so on via optical fiber cable 5. Here optical switch 15 of modules 3a, 3b... each is connected in series to optical signal sending circuit LS1 via control line 6b, and the optical signal path of switch 15 is switched by the data transmission request of units 4a, 4b and so on. Thus the optical signals emitted from circuit LS1 are detected, and the bus exclusive right is given one of units 4a, 4b and so on. As a result, a simple and assured control is ensured for the exclusive right of the optical bus.
COPYRIGHT: (C)1980,JPO&Japio
JP14023978A 1978-11-14 1978-11-14 Optical bus control unit Pending JPS5567820A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14023978A JPS5567820A (en) 1978-11-14 1978-11-14 Optical bus control unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14023978A JPS5567820A (en) 1978-11-14 1978-11-14 Optical bus control unit

Publications (1)

Publication Number Publication Date
JPS5567820A true JPS5567820A (en) 1980-05-22

Family

ID=15264137

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14023978A Pending JPS5567820A (en) 1978-11-14 1978-11-14 Optical bus control unit

Country Status (1)

Country Link
JP (1) JPS5567820A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58192601U (en) * 1982-06-17 1983-12-21 日本電気株式会社 optical communication line

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58192601U (en) * 1982-06-17 1983-12-21 日本電気株式会社 optical communication line

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