JPS6418852A - Communication device for trouble between computer - Google Patents

Communication device for trouble between computer

Info

Publication number
JPS6418852A
JPS6418852A JP62173842A JP17384287A JPS6418852A JP S6418852 A JPS6418852 A JP S6418852A JP 62173842 A JP62173842 A JP 62173842A JP 17384287 A JP17384287 A JP 17384287A JP S6418852 A JPS6418852 A JP S6418852A
Authority
JP
Japan
Prior art keywords
trouble
computer
lower level
processing circuit
circuit
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
JP62173842A
Other languages
Japanese (ja)
Inventor
Takao Nouchi
Takeshi Ejiri
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 JP62173842A priority Critical patent/JPS6418852A/en
Publication of JPS6418852A publication Critical patent/JPS6418852A/en
Pending legal-status Critical Current

Links

Landscapes

  • Test And Diagnosis Of Digital Computers (AREA)
  • Small-Scale Networks (AREA)

Abstract

PURPOSE:To easily extend a system by providing a modulation circuit into a trouble processing circuit of a host computer to modulate the signals informed via a lower level trouble informing line in different modulation systems for each lower level computer and a demodulation circuit into a trouble processing circuit of each lower level computer to demodulate the modulated signal. CONSTITUTION:When a communication controller 7 of a lower level computer 2-1 has a trouble, a trouble processing circuit 10 turns on a lower level trouble informing line 4-1 to inform the trouble of the controller 7 to a host computer 1. A trouble processing circuit 9-1 of the computer 1 delivers the modulation output showing the trouble of the computer 2-1 onto a trouble informing bus 8. Then said modulation output is delivered to a higher level trouble informing line 3-2 from a trouble processing circuit 9-1. A lower level computer 2-2 demodulates the modulation output via the circuit 10 and recognizes the information of the trouble. Hereafter the troubles of lower level computers 2-2-2-N are informed in the same way.
JP62173842A 1987-07-14 1987-07-14 Communication device for trouble between computer Pending JPS6418852A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62173842A JPS6418852A (en) 1987-07-14 1987-07-14 Communication device for trouble between computer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62173842A JPS6418852A (en) 1987-07-14 1987-07-14 Communication device for trouble between computer

Publications (1)

Publication Number Publication Date
JPS6418852A true JPS6418852A (en) 1989-01-23

Family

ID=15968172

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62173842A Pending JPS6418852A (en) 1987-07-14 1987-07-14 Communication device for trouble between computer

Country Status (1)

Country Link
JP (1) JPS6418852A (en)

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