JPS5392603A - Line branching unit - Google Patents
Line branching unitInfo
- Publication number
- JPS5392603A JPS5392603A JP736777A JP736777A JPS5392603A JP S5392603 A JPS5392603 A JP S5392603A JP 736777 A JP736777 A JP 736777A JP 736777 A JP736777 A JP 736777A JP S5392603 A JPS5392603 A JP S5392603A
- Authority
- JP
- Japan
- Prior art keywords
- branching unit
- line branching
- modem
- terminal unit
- stage terminal
- 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
Abstract
PURPOSE:To prevent the next-stage terminal units from disconnecting from a line even if power source of the terminal unit near a modem is cut off, by shorting automatically an interface signal from the modem from the next-stage terminal unit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP736777A JPS5392603A (en) | 1977-01-25 | 1977-01-25 | Line branching unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP736777A JPS5392603A (en) | 1977-01-25 | 1977-01-25 | Line branching unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5392603A true JPS5392603A (en) | 1978-08-14 |
Family
ID=11663991
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP736777A Pending JPS5392603A (en) | 1977-01-25 | 1977-01-25 | Line branching unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5392603A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5750149A (en) * | 1980-07-15 | 1982-03-24 | Westinghouse Electric Corp | Data transmitter |
JPS58163661U (en) * | 1982-04-28 | 1983-10-31 | 株式会社クボタ | Gas engine fuel gas supply device |
JPS59114682U (en) * | 1983-01-21 | 1984-08-02 | 沖電気工業株式会社 | Connection route switching circuit |
JPS60201758A (en) * | 1984-03-27 | 1985-10-12 | Seika Sangyo Kk | Data transmission system |
JPS60201757A (en) * | 1984-03-27 | 1985-10-12 | Seika Sangyo Kk | Transmitter |
JPH0191547A (en) * | 1987-06-09 | 1989-04-11 | Fujitsu Ltd | Common bus system |
JPH02241154A (en) * | 1989-03-14 | 1990-09-25 | Fujitsu Ltd | Communication system |
JPH0356919U (en) * | 1989-10-07 | 1991-05-31 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50123241A (en) * | 1974-03-15 | 1975-09-27 | ||
JPS52111A (en) * | 1975-06-23 | 1977-01-05 | Hitachi Ltd | Channel switching system |
-
1977
- 1977-01-25 JP JP736777A patent/JPS5392603A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50123241A (en) * | 1974-03-15 | 1975-09-27 | ||
JPS52111A (en) * | 1975-06-23 | 1977-01-05 | Hitachi Ltd | Channel switching system |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5750149A (en) * | 1980-07-15 | 1982-03-24 | Westinghouse Electric Corp | Data transmitter |
JPS58163661U (en) * | 1982-04-28 | 1983-10-31 | 株式会社クボタ | Gas engine fuel gas supply device |
JPS59114682U (en) * | 1983-01-21 | 1984-08-02 | 沖電気工業株式会社 | Connection route switching circuit |
JPS60201758A (en) * | 1984-03-27 | 1985-10-12 | Seika Sangyo Kk | Data transmission system |
JPS60201757A (en) * | 1984-03-27 | 1985-10-12 | Seika Sangyo Kk | Transmitter |
JPH0191547A (en) * | 1987-06-09 | 1989-04-11 | Fujitsu Ltd | Common bus system |
JPH02241154A (en) * | 1989-03-14 | 1990-09-25 | Fujitsu Ltd | Communication system |
JPH0356919U (en) * | 1989-10-07 | 1991-05-31 |
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