JPS5799842A - Data transmission system - Google Patents

Data transmission system

Info

Publication number
JPS5799842A
JPS5799842A JP55176209A JP17620980A JPS5799842A JP S5799842 A JPS5799842 A JP S5799842A JP 55176209 A JP55176209 A JP 55176209A JP 17620980 A JP17620980 A JP 17620980A JP S5799842 A JPS5799842 A JP S5799842A
Authority
JP
Japan
Prior art keywords
address
data
coupled
management
control
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
JP55176209A
Other languages
Japanese (ja)
Inventor
Kenji Kikuchi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP55176209A priority Critical patent/JPS5799842A/en
Publication of JPS5799842A publication Critical patent/JPS5799842A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46Interconnection of networks
    • H04L12/4637Interconnected ring systems

Abstract

PURPOSE:To shorten a response time and to reduce the cost, by coupling a management system data way and a control system data way by an exclusive coupling device. CONSTITUTION:A management system data way DW11 for executing the control management, etc. of the whole system, and control data ways DW121-123 for executing a local control under the management of DW11 are coupled by coupling devices 20, 21 and 22, 23, and 24, 25 respectively. The devices 20-25 are provided with a memory 206 for storing sending and receiving data, respectively, and when a data from a transmission line of one coupled DW has been received, whether an address shown by a destination address DA part of said data coincides with an intrinsic address of its own device or not is detected by an address detecting circuit 203. In the event of dissidence, its address is decided to be that of its own DW, and its data is sent out in its own DW through an output switching circuit 204 and a selector 205. When the data coincides with the address of said coupling device in the circuit 203, its address is stored in the memory 206, and the address is converted to a format of the other coupled DW, and is sent out.
JP55176209A 1980-12-13 1980-12-13 Data transmission system Pending JPS5799842A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55176209A JPS5799842A (en) 1980-12-13 1980-12-13 Data transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55176209A JPS5799842A (en) 1980-12-13 1980-12-13 Data transmission system

Publications (1)

Publication Number Publication Date
JPS5799842A true JPS5799842A (en) 1982-06-21

Family

ID=16009523

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55176209A Pending JPS5799842A (en) 1980-12-13 1980-12-13 Data transmission system

Country Status (1)

Country Link
JP (1) JPS5799842A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6074834A (en) * 1983-09-30 1985-04-27 Toshiba Corp Data transmission system
JPS60136442A (en) * 1983-12-26 1985-07-19 Hitachi Ltd Transmission system of packet switching data
JPS6125346A (en) * 1984-07-13 1986-02-04 Hitachi Ltd Local inter-network communication system
JPS6229338A (en) * 1985-07-31 1987-02-07 Nec Corp Path control system
JPS62226744A (en) * 1986-03-28 1987-10-05 Hitachi Ltd Transmission equipment of loop network system
JPS63232796A (en) * 1987-03-20 1988-09-28 Matsushita Electric Ind Co Ltd Data transmitting device
JPH06237256A (en) * 1992-12-29 1994-08-23 Internatl Business Mach Corp <Ibm> Fddi station bypass device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4995501A (en) * 1973-01-12 1974-09-10
JPS5212503A (en) * 1975-07-21 1977-01-31 Nippon Syst Kogyo Kk Multiplex loop transmission system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4995501A (en) * 1973-01-12 1974-09-10
JPS5212503A (en) * 1975-07-21 1977-01-31 Nippon Syst Kogyo Kk Multiplex loop transmission system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6074834A (en) * 1983-09-30 1985-04-27 Toshiba Corp Data transmission system
JPS60136442A (en) * 1983-12-26 1985-07-19 Hitachi Ltd Transmission system of packet switching data
JPS6125346A (en) * 1984-07-13 1986-02-04 Hitachi Ltd Local inter-network communication system
JPS6229338A (en) * 1985-07-31 1987-02-07 Nec Corp Path control system
JPH0568898B2 (en) * 1985-07-31 1993-09-29 Nippon Electric Co
JPS62226744A (en) * 1986-03-28 1987-10-05 Hitachi Ltd Transmission equipment of loop network system
JPS63232796A (en) * 1987-03-20 1988-09-28 Matsushita Electric Ind Co Ltd Data transmitting device
JPH06237256A (en) * 1992-12-29 1994-08-23 Internatl Business Mach Corp <Ibm> Fddi station bypass device

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