JPS6412743A - Data communication system - Google Patents

Data communication system

Info

Publication number
JPS6412743A
JPS6412743A JP62170060A JP17006087A JPS6412743A JP S6412743 A JPS6412743 A JP S6412743A JP 62170060 A JP62170060 A JP 62170060A JP 17006087 A JP17006087 A JP 17006087A JP S6412743 A JPS6412743 A JP S6412743A
Authority
JP
Japan
Prior art keywords
data length
transfer
decided
instruction
response instruction
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
JP62170060A
Other languages
Japanese (ja)
Inventor
Yoshio Yanagihara
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
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 filed Critical NEC Corp
Priority to JP62170060A priority Critical patent/JPS6412743A/en
Publication of JPS6412743A publication Critical patent/JPS6412743A/en
Pending legal-status Critical Current

Links

Landscapes

  • Communication Control (AREA)

Abstract

PURPOSE:To improve the efficiency of data transfer in a case where transfer data length in each information processor is different from each other, by deciding the optimum transfer data length in the information processor with each other by transmitting test data length when transferable data length is different. CONSTITUTION:A received response instruction is decided whether it is affirmation or negation by a managing part 12, and when a result is decided as the negation, no logical communication path is connected, and no data transfer is performed until a connection instruction is issued newly. When the response instruction is decided as affirmative response as a result, it is decided whether or not the data length assembled in a transmitted connection request instruction is equal to that assembled in the response instruction. And when the data length assembled in the response instruction is equal to the test data length, the managing part 12 decides the data length as the transfer data length, and delivers decided transfer data length and the response instruction to a connection control part 14.
JP62170060A 1987-07-07 1987-07-07 Data communication system Pending JPS6412743A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62170060A JPS6412743A (en) 1987-07-07 1987-07-07 Data communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62170060A JPS6412743A (en) 1987-07-07 1987-07-07 Data communication system

Publications (1)

Publication Number Publication Date
JPS6412743A true JPS6412743A (en) 1989-01-17

Family

ID=15897883

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62170060A Pending JPS6412743A (en) 1987-07-07 1987-07-07 Data communication system

Country Status (1)

Country Link
JP (1) JPS6412743A (en)

Similar Documents

Publication Publication Date Title
DE68919332D1 (en) Call data transmission system with priority control.
DE3751005D1 (en) Data transmission system with multiple uses.
BR9707093A (en) Protection and control system of electric power system and control system distributing
DE3689452T2 (en) Data transmission system.
DE3883817D1 (en) Data transmission system.
DE3787494T2 (en) Data transfer control system.
DE3688217T2 (en) Transmission system with reduced bandwidth.
DE3789743D1 (en) Serial data transmission system.
DE3586986D1 (en) DUPLEX TRANSMISSION SYSTEM WITH TRIANGULAR DATA WAVEFORMS WITH HIGH RELIABILITY.
DE3751486D1 (en) Data transmission system.
DE3785799T2 (en) Packet data transmission system with ring type transmission line.
DE68916464D1 (en) Transmission system with AC coupling receiver circuit.
DE69022323T2 (en) Transmission control system.
DE68902188D1 (en) HOMOKINETIC CLUTCH.
DE3683904D1 (en) MULTI-LEVEL QAM TRANSMISSION SYSTEM WITH ADDITIONAL SIGNAL POINTS.
DE3685622D1 (en) DATA TRANSFER CONTROL UNIT AND SYSTEM.
JPS6412743A (en) Data communication system
DE3788721T2 (en) DATA TRANSMISSION SYSTEM WITH TRANSMISSION DISCRIMINATION CIRCUIT.
DE3780948T2 (en) COUPLING CONTROL SYSTEM.
DE3852471D1 (en) Data transmission system.
DE3583771D1 (en) SINGLE-CHANNEL PRO-CARRIER TRANSMISSION SYSTEM WITH VOICE-ACTIVATED TRANSMIT POWER CONTROL.
JPS56164428A (en) Data transfer controlling system
JPS55147851A (en) Communication controlling system
EP0363087A3 (en) Status transfer within a data processing system
EP0334318A3 (en) Network system