JPS5795744A - Automatic line switching device for data communication device - Google Patents
Automatic line switching device for data communication deviceInfo
- Publication number
- JPS5795744A JPS5795744A JP55171561A JP17156180A JPS5795744A JP S5795744 A JPS5795744 A JP S5795744A JP 55171561 A JP55171561 A JP 55171561A JP 17156180 A JP17156180 A JP 17156180A JP S5795744 A JPS5795744 A JP S5795744A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- terminal
- line
- terminals
- relay
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer And Data Communications (AREA)
- Small-Scale Networks (AREA)
- Communication Control (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55171561A JPS5795744A (en) | 1980-12-05 | 1980-12-05 | Automatic line switching device for data communication device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55171561A JPS5795744A (en) | 1980-12-05 | 1980-12-05 | Automatic line switching device for data communication device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5795744A true JPS5795744A (en) | 1982-06-14 |
Family
ID=15925412
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55171561A Pending JPS5795744A (en) | 1980-12-05 | 1980-12-05 | Automatic line switching device for data communication device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5795744A (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1985000260A1 (en) * | 1983-06-23 | 1985-01-17 | Technopark Mine Co., Ltd. | Multiplexer |
JPS6259399U (ja) * | 1986-06-12 | 1987-04-13 | ||
JPH07162447A (ja) * | 1993-12-13 | 1995-06-23 | Nec Corp | データ伝送システム |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5024041A (ja) * | 1973-07-04 | 1975-03-14 | ||
JPS5061961A (ja) * | 1973-10-01 | 1975-05-27 | ||
JPS51111003A (en) * | 1975-03-26 | 1976-10-01 | Hitachi Denshi Ltd | A.c. line concentrator |
-
1980
- 1980-12-05 JP JP55171561A patent/JPS5795744A/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5024041A (ja) * | 1973-07-04 | 1975-03-14 | ||
JPS5061961A (ja) * | 1973-10-01 | 1975-05-27 | ||
JPS51111003A (en) * | 1975-03-26 | 1976-10-01 | Hitachi Denshi Ltd | A.c. line concentrator |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1985000260A1 (en) * | 1983-06-23 | 1985-01-17 | Technopark Mine Co., Ltd. | Multiplexer |
JPS6259399U (ja) * | 1986-06-12 | 1987-04-13 | ||
JPH07162447A (ja) * | 1993-12-13 | 1995-06-23 | Nec Corp | データ伝送システム |
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