JPS566744B2 - - Google Patents
Info
- Publication number
- JPS566744B2 JPS566744B2 JP7566975A JP7566975A JPS566744B2 JP S566744 B2 JPS566744 B2 JP S566744B2 JP 7566975 A JP7566975 A JP 7566975A JP 7566975 A JP7566975 A JP 7566975A JP S566744 B2 JPS566744 B2 JP S566744B2
- Authority
- JP
- Japan
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/74—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus
- H04B1/745—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus using by-passing or self-healing methods
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7566975A JPS52111A (en) | 1975-06-23 | 1975-06-23 | Channel switching system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7566975A JPS52111A (en) | 1975-06-23 | 1975-06-23 | Channel switching system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS52111A JPS52111A (en) | 1977-01-05 |
| JPS566744B2 true JPS566744B2 (en) | 1981-02-13 |
Family
ID=13582834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7566975A Granted JPS52111A (en) | 1975-06-23 | 1975-06-23 | Channel switching system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS52111A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5392603A (en) * | 1977-01-25 | 1978-08-14 | Mitsubishi Electric Corp | Line branching unit |
| JPS5827704B2 (en) * | 1979-05-28 | 1983-06-10 | 富士通株式会社 | Data transmission system using optical transmission line |
| JPS5631254A (en) * | 1979-08-23 | 1981-03-30 | Fuji Electric Co Ltd | Station by-pass processing system of data transmission system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4866307A (en) * | 1971-12-14 | 1973-09-11 | ||
| JPS4940640A (en) * | 1972-08-24 | 1974-04-16 |
-
1975
- 1975-06-23 JP JP7566975A patent/JPS52111A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4866307A (en) * | 1971-12-14 | 1973-09-11 | ||
| JPS4940640A (en) * | 1972-08-24 | 1974-04-16 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS52111A (en) | 1977-01-05 |