JPS57125547A - Dataway extender - Google Patents

Dataway extender

Info

Publication number
JPS57125547A
JPS57125547A JP1079281A JP1079281A JPS57125547A JP S57125547 A JPS57125547 A JP S57125547A JP 1079281 A JP1079281 A JP 1079281A JP 1079281 A JP1079281 A JP 1079281A JP S57125547 A JPS57125547 A JP S57125547A
Authority
JP
Japan
Prior art keywords
data
loop
circuit
way
supplies
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
JP1079281A
Other languages
Japanese (ja)
Inventor
Kuniyoshi Konishi
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 JP1079281A priority Critical patent/JPS57125547A/en
Publication of JPS57125547A publication Critical patent/JPS57125547A/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]
    • H04L12/46—Interconnection of networks
    • H04L12/4637—Interconnected ring systems

Landscapes

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

Abstract

PURPOSE:To enable data transmission between data way systems in loop, by forming two loop data way systems connecting data stations with different loop lines. CONSTITUTION:When data are transmitted from a data station 102 to a data station 108, the data station 102 gives a data way extension request signal to a data transmission 1 reception circuit 401 via a loop line 201. ON the other hand, when the circuit 401 receives the data way extension request signal, a control circuit 409 supplies a data way extension instruction to switching circuits 407, 408. Thus, the switching circuits 407, 408 switch lines, the circuit 407 supplies the data supplied from a phase compensation circuit 406 to a loop line 201 and the circuit 408 supplies the data from a phase compensation circuit 405 to a loop line 202. As a result, the data way is extended and the loop lines 201, 202 constitute a single loop line.
JP1079281A 1981-01-29 1981-01-29 Dataway extender Pending JPS57125547A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1079281A JPS57125547A (en) 1981-01-29 1981-01-29 Dataway extender

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1079281A JPS57125547A (en) 1981-01-29 1981-01-29 Dataway extender

Publications (1)

Publication Number Publication Date
JPS57125547A true JPS57125547A (en) 1982-08-04

Family

ID=11760188

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1079281A Pending JPS57125547A (en) 1981-01-29 1981-01-29 Dataway extender

Country Status (1)

Country Link
JP (1) JPS57125547A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60191539A (en) * 1984-03-13 1985-09-30 Hitachi Ltd Network system
JPS6478548A (en) * 1987-09-19 1989-03-24 Matsushita Electric Ind Co Ltd Video signal transmission system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60191539A (en) * 1984-03-13 1985-09-30 Hitachi Ltd Network system
JPS6478548A (en) * 1987-09-19 1989-03-24 Matsushita Electric Ind Co Ltd Video signal transmission system

Similar Documents

Publication Publication Date Title
TW242722B (en)
JPS55136742A (en) Multiplex communication system
EP0124260A3 (en) Power supply line carrier communication systems
JPS5639670A (en) Circuit switching unit
JPS57125547A (en) Dataway extender
JPS5646348A (en) Loop transmission system
JPS56146390A (en) 2:n remote monitor control system
JPS56104558A (en) Switching system of multitransmission line
JPS56149851A (en) Looplike data transmission equipment
JPS56169492A (en) Remote monitor controller
JPS545544A (en) Control system for power line carrier in indoor load
JPS57176441A (en) Data transfer system
JPS648736A (en) Answer-back system
JPS567536A (en) Interruption system
JPS57188160A (en) Decentralized managing loop transmission system
JPS5613847A (en) Multistation interphone
JPS55114057A (en) Data communication circuit connection switching unit
JPS52102607A (en) Remote device control system
JPS6486720A (en) Line switching control system
JPS54122006A (en) Controller for weather-information display
JPS5733851A (en) Switching system of station
JPS57101442A (en) Controller for unattended slave station
JPS6455934A (en) Interface switching system and circuit
JPS6481545A (en) Communication control method for loop transmission system
JPS57116463A (en) Communication-circuit switching device