JPS5454541A - Multi-line control unit - Google Patents

Multi-line control unit

Info

Publication number
JPS5454541A
JPS5454541A JP12094877A JP12094877A JPS5454541A JP S5454541 A JPS5454541 A JP S5454541A JP 12094877 A JP12094877 A JP 12094877A JP 12094877 A JP12094877 A JP 12094877A JP S5454541 A JPS5454541 A JP S5454541A
Authority
JP
Japan
Prior art keywords
control unit
data
unit
line
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
JP12094877A
Other languages
Japanese (ja)
Inventor
Takao Niiya
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12094877A priority Critical patent/JPS5454541A/en
Publication of JPS5454541A publication Critical patent/JPS5454541A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To increase the processing ability of the terminal control unit, by connecting the physical number of connecting lines more than the maximum logical connecting line number to the termianl control unit and sharing the polling right to the communication lines.
CONSTITUTION: The terminal control unit 1 receives the data from the terminal unit 6 connected to the communication line 5 in multi-drop type, via the multiline control unit 8, line connection unit 3, and MODEM 4, and performs the check code conversion of the reception data and format conversion, and transmits the edit data to the central system 10 voa the data exchanger 9. Further, the data received from the unit 6 is fed to the drum 11, magnetic tape 12, and line printer 13. Although the quantative effect due to simulation is shown in the plotting, by taking the average terminal waiting time T as parameter, the y axis as the processing rate and the x axis as the physical number of connecting lines, and it can be known from the result that the physical number of connecting lines which is 1.5 times the maximum logical connecting line number can effectively be connected
COPYRIGHT: (C)1979,JPO&Japio
JP12094877A 1977-10-11 1977-10-11 Multi-line control unit Pending JPS5454541A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12094877A JPS5454541A (en) 1977-10-11 1977-10-11 Multi-line control unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12094877A JPS5454541A (en) 1977-10-11 1977-10-11 Multi-line control unit

Publications (1)

Publication Number Publication Date
JPS5454541A true JPS5454541A (en) 1979-04-28

Family

ID=14798927

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12094877A Pending JPS5454541A (en) 1977-10-11 1977-10-11 Multi-line control unit

Country Status (1)

Country Link
JP (1) JPS5454541A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS594358A (en) * 1982-06-30 1984-01-11 Chino Works Ltd Data transmitter
US4744084A (en) * 1986-02-27 1988-05-10 Mentor Graphics Corporation Hardware modeling system and method for simulating portions of electrical circuits

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5061961A (en) * 1973-10-01 1975-05-27
JPS50100937A (en) * 1973-07-28 1975-08-11

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50100937A (en) * 1973-07-28 1975-08-11
JPS5061961A (en) * 1973-10-01 1975-05-27

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS594358A (en) * 1982-06-30 1984-01-11 Chino Works Ltd Data transmitter
JPH0230618B2 (en) * 1982-06-30 1990-07-09 Chino Corp
US4744084A (en) * 1986-02-27 1988-05-10 Mentor Graphics Corporation Hardware modeling system and method for simulating portions of electrical circuits

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