JPS5511647A - Loop transmission system - Google Patents

Loop transmission system

Info

Publication number
JPS5511647A
JPS5511647A JP8434078A JP8434078A JPS5511647A JP S5511647 A JPS5511647 A JP S5511647A JP 8434078 A JP8434078 A JP 8434078A JP 8434078 A JP8434078 A JP 8434078A JP S5511647 A JPS5511647 A JP S5511647A
Authority
JP
Japan
Prior art keywords
transmission
station
sua
suc
computer
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
JP8434078A
Other languages
Japanese (ja)
Inventor
Akira Watanabe
Masayuki Eguchi
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 JP8434078A priority Critical patent/JPS5511647A/en
Publication of JPS5511647A publication Critical patent/JPS5511647A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42—Loop networks
    • H04L12/427—Loop networks with decentralised control
    • H04L12/433—Loop networks with decentralised control with asynchronous transmission, e.g. token ring, register insertion

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)

Abstract

PURPOSE:To know the possiblity for transmission immediately by providing the answer queuing period for the reception station to the transmission station after end of the transmission, and thus to reduce greatly the load of the software for the computer. CONSTITUTION:A circular connection is given via transmission line 1 to Su (station unit) A, B, C and D to which computers C-A, C-B, C-C and C-D are connected respectively. And for example, in case SuA detects special pattern GA to acquire the transmission right and thus discontinues the repeating action to send transmission date 21 given from computer C-A to SuC, SuC draws the transmission data into the self-station in the course of repeating of the data. And the repeated data is thrown away at SuA. Then SuA transmits the flag pattern continuously even after end of the transmission to wait for the answer of SuC. On the other hand, SuC discontinues the repeating action after end of the reception and performs the repeating action again after formation and transmission of the answer information. And SuA transmits the answer information to the local computer C-A and transmits GA to give the transmission right to other station units and then to be reset to the repeating action. As a result, computer C-A can proceed immediately to the next action.
JP8434078A 1978-07-11 1978-07-11 Loop transmission system Pending JPS5511647A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8434078A JPS5511647A (en) 1978-07-11 1978-07-11 Loop transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8434078A JPS5511647A (en) 1978-07-11 1978-07-11 Loop transmission system

Publications (1)

Publication Number Publication Date
JPS5511647A true JPS5511647A (en) 1980-01-26

Family

ID=13827768

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8434078A Pending JPS5511647A (en) 1978-07-11 1978-07-11 Loop transmission system

Country Status (1)

Country Link
JP (1) JPS5511647A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58170152A (en) * 1982-03-30 1983-10-06 Fujitsu Ltd Loop equivalence communication system
JPS60219845A (en) * 1984-04-17 1985-11-02 Nec Corp System for controlling inhibition of transmission in loop network
JPH02131048A (en) * 1988-10-28 1990-05-18 Internatl Business Mach Corp <Ibm> Packet transfer method between adapter, contention eliminating device and token-ring device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58170152A (en) * 1982-03-30 1983-10-06 Fujitsu Ltd Loop equivalence communication system
JPS60219845A (en) * 1984-04-17 1985-11-02 Nec Corp System for controlling inhibition of transmission in loop network
JPH02131048A (en) * 1988-10-28 1990-05-18 Internatl Business Mach Corp <Ibm> Packet transfer method between adapter, contention eliminating device and token-ring device

Similar Documents

Publication Publication Date Title
JPS5511647A (en) Loop transmission system
JPS537352A (en) Data collection system in digital telemeter system
JPS5752261A (en) Character processor
JPS5518775A (en) Data transfer system
JPS5421139A (en) Communication system
JPS5429665A (en) Data collecting system
JPS5394143A (en) High-speed data transmission-reception system
JPS5299004A (en) Automatic voice responding system
JPS6470861A (en) Inter-device coupling system
JPS5561836A (en) Data transfer system
JPS545303A (en) Data communication system
JPS532050A (en) Polling system
JPS5429510A (en) Data communication system
JPS5515542A (en) Data transmitter
JPS6479623A (en) Data transmitting method of in-line system
JPS6441358A (en) On-line retrieval system
JPS5541541A (en) Data transmission control method
JPS5311410A (en) Process for constructing railway circuit
JPS526440A (en) Transmission line coupling system
JPS54143007A (en) Information transmission system
JPS52152051A (en) Elevator signal transmitting device
JPS54114951A (en) Control unit for experiment measurement stop
JPS6473841A (en) Packet switching system
JPS5570163A (en) Facsimile communication system for original of fixed format
JPS53117349A (en) Interruption system