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JPS5738043A - Line exchange system - Google Patents

Line exchange system

Info

Publication number
JPS5738043A
JPS5738043A JP11427980A JP11427980A JPS5738043A JP S5738043 A JPS5738043 A JP S5738043A JP 11427980 A JP11427980 A JP 11427980A JP 11427980 A JP11427980 A JP 11427980A JP S5738043 A JPS5738043 A JP S5738043A
Authority
JP
Japan
Prior art keywords
station
transmission
received
slave
channel number
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
JP11427980A
Other languages
Japanese (ja)
Inventor
Takashi Yamamura
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP11427980A priority Critical patent/JPS5738043A/en
Publication of JPS5738043A publication Critical patent/JPS5738043A/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
    • H04L12/423—Loop networks with centralised control, e.g. polling

Landscapes

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

Abstract

PURPOSE:To enable the full duplex communication between slave stations with simple switch operation, without using high multiplex technology, by providing fiber transmission lines in parallel by the used channel number. CONSTITUTION:For example, when a slave station 3 makes transmission, after receiving a polling instruction command from a master station 2 is received at a reception circuit 72, a transmission request command including the address signal of desired opposing stations from a control section 7 is transmitted to a master station 2 via a common transmission line provided in common with each slave station and a transmission circuit 71. When the request command is received at the master station 2, a vacant channel (vacant transmission line) is sought and when the vacancy is found out, an incoming command including the outgoing station address and used channel number is transmitted to the incoming station. It selects the optical fiber transmission line corresponding to the channel at the switch section 6 according to the designated channel number received at the incoming command and the slave station 3 and the opposing station can be connected with the full duplex communication lines.
JP11427980A 1980-08-20 1980-08-20 Line exchange system Pending JPS5738043A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11427980A JPS5738043A (en) 1980-08-20 1980-08-20 Line exchange system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11427980A JPS5738043A (en) 1980-08-20 1980-08-20 Line exchange system

Publications (1)

Publication Number Publication Date
JPS5738043A true JPS5738043A (en) 1982-03-02

Family

ID=14633846

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11427980A Pending JPS5738043A (en) 1980-08-20 1980-08-20 Line exchange system

Country Status (1)

Country Link
JP (1) JPS5738043A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2534753A1 (en) * 1982-10-15 1984-04-20 Gixi Ingenierie Inf SYSTEM FOR ESTABLISHING DATA TRANSMISSION CIRCUITS AT CONSTANT FLOW BETWEEN A PLURALITY OF STATIONS
JPS62261246A (en) * 1986-05-07 1987-11-13 Nec Corp Picture transmission control system
JPS6367943A (en) * 1986-09-05 1988-03-26 エイ・ティ・アンド・ティ・コーポレーション Packet switch

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2534753A1 (en) * 1982-10-15 1984-04-20 Gixi Ingenierie Inf SYSTEM FOR ESTABLISHING DATA TRANSMISSION CIRCUITS AT CONSTANT FLOW BETWEEN A PLURALITY OF STATIONS
US4670873A (en) * 1982-10-15 1987-06-02 Gixi Ingenierie Informatique S.A. System for setting up data transmission circuits between a plurality of stations
JPS62261246A (en) * 1986-05-07 1987-11-13 Nec Corp Picture transmission control system
JPS6367943A (en) * 1986-09-05 1988-03-26 エイ・ティ・アンド・ティ・コーポレーション Packet switch

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