JPS5563416A - Input and output bus disconnection system for electronic computer - Google Patents
Input and output bus disconnection system for electronic computerInfo
- Publication number
- JPS5563416A JPS5563416A JP13674178A JP13674178A JPS5563416A JP S5563416 A JPS5563416 A JP S5563416A JP 13674178 A JP13674178 A JP 13674178A JP 13674178 A JP13674178 A JP 13674178A JP S5563416 A JPS5563416 A JP S5563416A
- Authority
- JP
- Japan
- Prior art keywords
- bus
- switch
- input
- output bus
- electronic computer
- 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
Links
Landscapes
- Debugging And Monitoring (AREA)
Abstract
PURPOSE: To disconnect the bus without interference other bus, by interlocking the signal system delivered from the disconnected bus to the upper rank bus with the output of FF set when the switch is ON and the bus having the switch is not in operation.
CONSTITUTION: The upper rank bus 2 and the lower rank bus 3 are connected to the same power supply. When the local switch 31 at the bus 3 is ON, the display lamps 34 and 35 illuminate. The interlock switch 15 at the bus expander 8 mounted in the bus 2 is turned on by observing the illumination of the display lamp 35. One side of the switch 15 is directly connected to ground, and as far as it is ON, even if the expander 8 is disconnected while the power supply is applied, the gates 24 and 25 are not open. When the switch 15 is ON, even with the bus 3 in any conditions, no interference can be given to the bus 2.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13674178A JPS5563416A (en) | 1978-11-08 | 1978-11-08 | Input and output bus disconnection system for electronic computer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13674178A JPS5563416A (en) | 1978-11-08 | 1978-11-08 | Input and output bus disconnection system for electronic computer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5563416A true JPS5563416A (en) | 1980-05-13 |
Family
ID=15182410
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13674178A Pending JPS5563416A (en) | 1978-11-08 | 1978-11-08 | Input and output bus disconnection system for electronic computer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5563416A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04205135A (en) * | 1990-11-30 | 1992-07-27 | Hitachi Ltd | Method and device for displaying hot line insertion and extraction |
JPH04273359A (en) * | 1991-02-28 | 1992-09-29 | Nec Corp | Bus circuit |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5325747A (en) * | 1976-08-24 | 1978-03-09 | Hitachi Ltd | Water flowing face corrosion preventing method of hydraulic machine and its device |
-
1978
- 1978-11-08 JP JP13674178A patent/JPS5563416A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5325747A (en) * | 1976-08-24 | 1978-03-09 | Hitachi Ltd | Water flowing face corrosion preventing method of hydraulic machine and its device |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04205135A (en) * | 1990-11-30 | 1992-07-27 | Hitachi Ltd | Method and device for displaying hot line insertion and extraction |
JPH04273359A (en) * | 1991-02-28 | 1992-09-29 | Nec Corp | Bus circuit |
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