JPS5676824A - Network interface system - Google Patents

Network interface system

Info

Publication number
JPS5676824A
JPS5676824A JP15377479A JP15377479A JPS5676824A JP S5676824 A JPS5676824 A JP S5676824A JP 15377479 A JP15377479 A JP 15377479A JP 15377479 A JP15377479 A JP 15377479A JP S5676824 A JPS5676824 A JP S5676824A
Authority
JP
Japan
Prior art keywords
input
devices
output
channel
plus
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
JP15377479A
Other languages
Japanese (ja)
Inventor
Hideto Nishimura
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
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP15377479A priority Critical patent/JPS5676824A/en
Publication of JPS5676824A publication Critical patent/JPS5676824A/en
Pending legal-status Critical Current

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  • Hardware Redundancy (AREA)
  • Computer And Data Communications (AREA)

Abstract

PURPOSE: To prevent the working unable state for the input/output device connected which is caused by the cutoff of the input/output interface line or the fault of the channel function, by connecting the input/output device to the two channels of the terminal unit.
CONSTITUTION: The terminal unit 11 having the input/output channels 12W19 and to be controlled by the control program 20 is provided, and the input/output devices 21W31 are connected to the unit 11. In this case, the devices 21W25 plus 29W31 are connected to a channel 12 of the unit 11 via the input/output interface signal line 32, and the devices 21W25 plus 26W28 are connected to other channel 13 via the interface signal line 33. Furthermore, the devices 26W28 plus 29W31 are connected to the channel 14 via the interface signal line 34. The a control becomes possible for each of the units 21W31 via the signal lines 32W34, thus preventing the working unable state of the devices 21W31 which is caused by the cut-off of the signal lines 32W34 or the fault of the channels 12W14.
COPYRIGHT: (C)1981,JPO&Japio
JP15377479A 1979-11-28 1979-11-28 Network interface system Pending JPS5676824A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15377479A JPS5676824A (en) 1979-11-28 1979-11-28 Network interface system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15377479A JPS5676824A (en) 1979-11-28 1979-11-28 Network interface system

Publications (1)

Publication Number Publication Date
JPS5676824A true JPS5676824A (en) 1981-06-24

Family

ID=15569836

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15377479A Pending JPS5676824A (en) 1979-11-28 1979-11-28 Network interface system

Country Status (1)

Country Link
JP (1) JPS5676824A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01156943A (en) * 1980-07-02 1989-06-20 Roussel Uclaf Novel derivative of cyclopropane carboxylic acid
JP2012055154A (en) * 2010-08-31 2012-03-15 O2 Micro Inc Flexible bus structure for monitoring and controlling battery pack

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01156943A (en) * 1980-07-02 1989-06-20 Roussel Uclaf Novel derivative of cyclopropane carboxylic acid
JPH0417941B2 (en) * 1980-07-02 1992-03-26 Roussel Uclaf
JP2012055154A (en) * 2010-08-31 2012-03-15 O2 Micro Inc Flexible bus structure for monitoring and controlling battery pack

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