JPS5765037A - Loop type data transmission system - Google Patents

Loop type data transmission system

Info

Publication number
JPS5765037A
JPS5765037A JP14134380A JP14134380A JPS5765037A JP S5765037 A JPS5765037 A JP S5765037A JP 14134380 A JP14134380 A JP 14134380A JP 14134380 A JP14134380 A JP 14134380A JP S5765037 A JPS5765037 A JP S5765037A
Authority
JP
Japan
Prior art keywords
time slot
transmission
data
slot
transmission line
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.)
Granted
Application number
JP14134380A
Other languages
Japanese (ja)
Other versions
JPS6349944B2 (en
Inventor
Masahiro Mochizuki
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
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP14134380A priority Critical patent/JPS5765037A/en
Publication of JPS5765037A publication Critical patent/JPS5765037A/en
Publication of JPS6349944B2 publication Critical patent/JPS6349944B2/ja
Granted 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
    • H04L12/43—Loop networks with decentralised control with synchronous transmission, e.g. time division multiplex [TDM], slotted rings

Landscapes

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

Abstract

PURPOSE:To discriminate a vacant time slot circulating a loop shape transmission line and to monitor the change in address easily, by permitting the reception of data at the slot to other transmitter and adding the flag inhibiting transmission in an arbitrary time slot. CONSTITUTION:Data tramsitters ST1-ST4 are connected in loop, the device ST1 is taken as the control station of system, timing signal generating functions to restrict the time slot is given, and control is made so that the continuous timing slot timewise is presented on any point on the transmission line. Other devices ST2-4 monitor the time slot at all time in synchronizing it. The data format of this transmission consists of a frame-synchronizm word F-SYNC, flag bit FB indicating the usage state of time slot, transmission inhibit flag bit SI, transmission original address SA, tramsitted address RA, and information word DATA, and the flag bits FB, SI discriminate the vacant time slot circulating the transmission line.
JP14134380A 1980-10-09 1980-10-09 Loop type data transmission system Granted JPS5765037A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14134380A JPS5765037A (en) 1980-10-09 1980-10-09 Loop type data transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14134380A JPS5765037A (en) 1980-10-09 1980-10-09 Loop type data transmission system

Publications (2)

Publication Number Publication Date
JPS5765037A true JPS5765037A (en) 1982-04-20
JPS6349944B2 JPS6349944B2 (en) 1988-10-06

Family

ID=15289747

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14134380A Granted JPS5765037A (en) 1980-10-09 1980-10-09 Loop type data transmission system

Country Status (1)

Country Link
JP (1) JPS5765037A (en)

Also Published As

Publication number Publication date
JPS6349944B2 (en) 1988-10-06

Similar Documents

Publication Publication Date Title
EP0183196A3 (en) Bus system
SE7907453L (en) INFORMATION TRANSMISSION AND RECEIVING DEVICE
JPS52141107A (en) Receiver for data transmission system
GB1100037A (en) Error detection and correction apparatus for duplex communication system
JPS5765037A (en) Loop type data transmission system
JPS5671358A (en) Control system for button telephone
JPS5696552A (en) Erastic storage
JPS5630347A (en) Single-speed digital subscriber's line transmission system
JPS5487404A (en) Loop data transmission system
JPS5759233A (en) Signal transmitting circuit
JPS5538724A (en) Loop-type data transmission system
JPS52132703A (en) Time sharing multiplex data transmission system
JPS5672558A (en) Data transmission system
JPS5528620A (en) Synchronizing system of communication line
JPS53112624A (en) Paralell-type data trasmission unit for long distance
JPS56162559A (en) Start-stop synchronous communication system
JPS5664549A (en) Message transmission control system
JPS52106242A (en) Character multiple communication system
JPS6434035A (en) Retrieval communication system
JPS5586237A (en) Bit rate conversion system
JPS5510244A (en) Common signal bus system
JPS5377147A (en) Priority selection system
JPS57186862A (en) Information transmission device
JPS5383513A (en) Error control system for picture signal
JPS5313818A (en) Signal transmission system