JPS57183148A - Data transfer system - Google Patents

Data transfer system

Info

Publication number
JPS57183148A
JPS57183148A JP56067143A JP6714381A JPS57183148A JP S57183148 A JPS57183148 A JP S57183148A JP 56067143 A JP56067143 A JP 56067143A JP 6714381 A JP6714381 A JP 6714381A JP S57183148 A JPS57183148 A JP S57183148A
Authority
JP
Japan
Prior art keywords
data
bit
circuit
data transfer
terminal
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
JP56067143A
Other languages
Japanese (ja)
Inventor
Masao Suzuki
Shingo Hasegawa
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP56067143A priority Critical patent/JPS57183148A/en
Publication of JPS57183148A publication Critical patent/JPS57183148A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
    • H04L1/0083—Formatting with frames or packets; Protocol or part of protocol for error control

Abstract

PURPOSE:To achieve communication with various equipments by allowing data of envelope format to contain bits showing the kind of data, attributes such as a speed, and a connection state between a circuit and a terminal for full duplex communication serial data transfer of time-division multiplex. CONSTITUTION:The format of serial transfer data consists of a starting frame bit F for synchronism, a bit S for switching control with a data exchange, a bit D-S0 showing the attribute of data on the definition of a start-stop system, a synchronous system, or a data transfer speed, a bit D-S1 showing the connection state of a circuit or data terminal stored in the transmission and reception terminal of a serial data transfer circuit, and six ending bits D of a data body. When a circuit terminal equipment DSU connected to an input and output equipment I/O originates and is connected to an incoming-side circuit terminal equipment DSU through a data exchange 100, the attribute of an equipment indicated by the bit DS0 is reported from the origination side to the termination side, where data transfer is controlled in accordance with it.
JP56067143A 1981-05-02 1981-05-02 Data transfer system Pending JPS57183148A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56067143A JPS57183148A (en) 1981-05-02 1981-05-02 Data transfer system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56067143A JPS57183148A (en) 1981-05-02 1981-05-02 Data transfer system

Publications (1)

Publication Number Publication Date
JPS57183148A true JPS57183148A (en) 1982-11-11

Family

ID=13336383

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56067143A Pending JPS57183148A (en) 1981-05-02 1981-05-02 Data transfer system

Country Status (1)

Country Link
JP (1) JPS57183148A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5593353A (en) * 1979-01-08 1980-07-15 Komatsu Ltd Transfer rate changing system in data transmission unit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5593353A (en) * 1979-01-08 1980-07-15 Komatsu Ltd Transfer rate changing system in data transmission unit

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