JPS5479504A - Data highway system - Google Patents
Data highway systemInfo
- Publication number
- JPS5479504A JPS5479504A JP14742077A JP14742077A JPS5479504A JP S5479504 A JPS5479504 A JP S5479504A JP 14742077 A JP14742077 A JP 14742077A JP 14742077 A JP14742077 A JP 14742077A JP S5479504 A JPS5479504 A JP S5479504A
- Authority
- JP
- Japan
- Prior art keywords
- station
- detection frame
- stations
- data
- output
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
- H04L12/437—Ring fault isolation or reconfiguration
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Small-Scale Networks (AREA)
Abstract
PURPOSE:To reduce unaccountable transfer failures by informing a control station that its own circuit is not separated, by changing data on a detection frame. CONSTITUTION:The data highway system consists of stations 3, 4 and 5 connected to a ring transmission line, and control station 2 supervising this transmission line. In the intervals of an exchange of normal information, output control circuit 27 is controlled to output details of a detection frame, stored in output rigister 30, showing circuit separation states of stations 3, 4 and 5, and each station is informed of the response of a station to the detection frame. In this case, stations 3, 4 and 5 inform station 2, by changing data on the detection frame, that their own circuits are not separated at the time of the reception of the data. Consequently, unaccountable transfer failures can be reduced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14742077A JPS5479504A (en) | 1977-12-07 | 1977-12-07 | Data highway system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14742077A JPS5479504A (en) | 1977-12-07 | 1977-12-07 | Data highway system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5479504A true JPS5479504A (en) | 1979-06-25 |
Family
ID=15429900
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14742077A Pending JPS5479504A (en) | 1977-12-07 | 1977-12-07 | Data highway system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5479504A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56106458A (en) * | 1980-01-28 | 1981-08-24 | Nec Corp | Data highway device |
JPS56168457A (en) * | 1980-05-30 | 1981-12-24 | Agency Of Ind Science & Technol | Loop-type network system |
JPH01215153A (en) * | 1988-02-23 | 1989-08-29 | Nec Corp | Bypass detection system |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5195750A (en) * | 1975-02-19 | 1976-08-21 |
-
1977
- 1977-12-07 JP JP14742077A patent/JPS5479504A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5195750A (en) * | 1975-02-19 | 1976-08-21 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56106458A (en) * | 1980-01-28 | 1981-08-24 | Nec Corp | Data highway device |
JPS56168457A (en) * | 1980-05-30 | 1981-12-24 | Agency Of Ind Science & Technol | Loop-type network system |
JPS5820179B2 (en) * | 1980-05-30 | 1983-04-21 | 工業技術院長 | Loop network system |
JPH01215153A (en) * | 1988-02-23 | 1989-08-29 | Nec Corp | Bypass detection system |
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