JPS6453649A - Loop-shaped virtual lan system - Google Patents

Loop-shaped virtual lan system

Info

Publication number
JPS6453649A
JPS6453649A JP20917187A JP20917187A JPS6453649A JP S6453649 A JPS6453649 A JP S6453649A JP 20917187 A JP20917187 A JP 20917187A JP 20917187 A JP20917187 A JP 20917187A JP S6453649 A JPS6453649 A JP S6453649A
Authority
JP
Japan
Prior art keywords
terminal
signal
lan
loop
type interface
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
JP20917187A
Other languages
Japanese (ja)
Inventor
Seiichi Kato
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
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 filed Critical NEC Corp
Priority to JP20917187A priority Critical patent/JPS6453649A/en
Publication of JPS6453649A publication Critical patent/JPS6453649A/en
Pending legal-status Critical Current

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  • Small-Scale Networks (AREA)

Abstract

PURPOSE:To join a LAN without being conscious of a transmitting fundamental part with respective terminals by making preparations for an interface to meet the communication mode and communication procedure of respective terminals for one loop-shaped LAN. CONSTITUTION:For a transmitting fundamental part 24, the interfaces such as a fixed communication type interface part 21, a token ring type interface part 22 and a packet line exchange type interface part 23. Thus, the signal from the terminal such as a data terminal 100 for fixed communication, a terminal 200 for exchanging a message, a telephone terminal 300, a facsimile terminal 400 and a host computer 500 is inputted to respective LAN interface parts, after the signal is gatewayed here, the signal is multiplexed by a multiplexing transmitting fundamental part 24 and transmitted to other terminal station device by an optical fiber cable 10.
JP20917187A 1987-08-25 1987-08-25 Loop-shaped virtual lan system Pending JPS6453649A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20917187A JPS6453649A (en) 1987-08-25 1987-08-25 Loop-shaped virtual lan system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20917187A JPS6453649A (en) 1987-08-25 1987-08-25 Loop-shaped virtual lan system

Publications (1)

Publication Number Publication Date
JPS6453649A true JPS6453649A (en) 1989-03-01

Family

ID=16568508

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20917187A Pending JPS6453649A (en) 1987-08-25 1987-08-25 Loop-shaped virtual lan system

Country Status (1)

Country Link
JP (1) JPS6453649A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02235458A (en) * 1989-03-09 1990-09-18 Mitsubishi Electric Corp Cyclic data transmission method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60235556A (en) * 1984-05-08 1985-11-22 Nec Corp Node station of local area network system
JPS6218152A (en) * 1985-07-17 1987-01-27 Nec Corp Method and apparatus for adjusting propagation time in digital multiplex loop network
JPS6271350A (en) * 1985-09-24 1987-04-02 Toshiba Corp Method for assigning loop type communication system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60235556A (en) * 1984-05-08 1985-11-22 Nec Corp Node station of local area network system
JPS6218152A (en) * 1985-07-17 1987-01-27 Nec Corp Method and apparatus for adjusting propagation time in digital multiplex loop network
JPS6271350A (en) * 1985-09-24 1987-04-02 Toshiba Corp Method for assigning loop type communication system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02235458A (en) * 1989-03-09 1990-09-18 Mitsubishi Electric Corp Cyclic data transmission method

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