JPS5599658A - Automatic switching system for double system of hierarchy duplex system - Google Patents
Automatic switching system for double system of hierarchy duplex systemInfo
- Publication number
- JPS5599658A JPS5599658A JP686679A JP686679A JPS5599658A JP S5599658 A JPS5599658 A JP S5599658A JP 686679 A JP686679 A JP 686679A JP 686679 A JP686679 A JP 686679A JP S5599658 A JPS5599658 A JP S5599658A
- Authority
- JP
- Japan
- Prior art keywords
- rank
- computer
- panel
- duplex
- hierarchy
- 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.)
- Granted
Links
Landscapes
- Multi Processors (AREA)
- Hardware Redundancy (AREA)
Abstract
PURPOSE: To secure the automatic switching for the lower-rank duplex system even at the breakdown time of the higher-rank computer, by providing the monitor panel consisting of the alarm module.
CONSTITUTION: Monitor panel 14 consisting of the alarm module is provided between higher-rank computer 11 of the hierarchy system and lower-rank computers 12 and 13 which are duplicated in the from of the duplex system. Now if computers 12 and 13 supply mutually the status of the breakdown of the remote side computer through panel 14, the computer functioning as the secondary system computer at present is switched to the main system. At the same time, panel 14 displays the switching. When the computer is functioning as the main system and the information transmission is impossible through the higher-rank computer, the higher-rank status is supplied through panel 14. And if this status is normal, the fault of the transmission line is decided to give switching to the lower-rank system. In such way, the lower-rank duplex system can be switched.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54006866A JPS592944B2 (en) | 1979-01-24 | 1979-01-24 | Dual system automatic switching method of hirer-ki duplex system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54006866A JPS592944B2 (en) | 1979-01-24 | 1979-01-24 | Dual system automatic switching method of hirer-ki duplex system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5599658A true JPS5599658A (en) | 1980-07-29 |
JPS592944B2 JPS592944B2 (en) | 1984-01-21 |
Family
ID=11650153
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54006866A Expired JPS592944B2 (en) | 1979-01-24 | 1979-01-24 | Dual system automatic switching method of hirer-ki duplex system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS592944B2 (en) |
-
1979
- 1979-01-24 JP JP54006866A patent/JPS592944B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS592944B2 (en) | 1984-01-21 |
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