JPS54148408A - Transmission line return control system - Google Patents
Transmission line return control systemInfo
- Publication number
- JPS54148408A JPS54148408A JP5656678A JP5656678A JPS54148408A JP S54148408 A JPS54148408 A JP S54148408A JP 5656678 A JP5656678 A JP 5656678A JP 5656678 A JP5656678 A JP 5656678A JP S54148408 A JPS54148408 A JP S54148408A
- Authority
- JP
- Japan
- Prior art keywords
- return
- control
- transmission line
- station
- information
- 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
- Dc Digital Transmission (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
PURPOSE: To ensure the control for the return of an optional circuit through a simple constitution without affecting other circuits by using the logical product output of the return control signal and the step-out information of the received digital signal.
CONSTITUTION: DC power source 31 of transmission line return control signal transmitter 13 at control station A is connected to DC detector 33 of control signal receiver 14 at controlled station B via switch 32. Each of circuits 1∼n of station B possesses the function to transmit the step-out information of the received digital signal, and this information is led to logic product circuit 34 on n-units. Then the logic product output to the output information of detector 33 is supplied to return circuit 23 to control each return function.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5656678A JPS54148408A (en) | 1978-05-15 | 1978-05-15 | Transmission line return control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5656678A JPS54148408A (en) | 1978-05-15 | 1978-05-15 | Transmission line return control system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54148408A true JPS54148408A (en) | 1979-11-20 |
JPS5750105B2 JPS5750105B2 (en) | 1982-10-26 |
Family
ID=13030675
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5656678A Granted JPS54148408A (en) | 1978-05-15 | 1978-05-15 | Transmission line return control system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54148408A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58172254U (en) * | 1982-05-11 | 1983-11-17 | 松下電器産業株式会社 | button telephone device |
JPH0214652A (en) * | 1988-06-30 | 1990-01-18 | Yagi Antenna Co Ltd | Monitor for high speed data communication |
-
1978
- 1978-05-15 JP JP5656678A patent/JPS54148408A/en active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58172254U (en) * | 1982-05-11 | 1983-11-17 | 松下電器産業株式会社 | button telephone device |
JPH0212776Y2 (en) * | 1982-05-11 | 1990-04-10 | ||
JPH0214652A (en) * | 1988-06-30 | 1990-01-18 | Yagi Antenna Co Ltd | Monitor for high speed data communication |
JPH0534864B2 (en) * | 1988-06-30 | 1993-05-25 | Yagi Antenna |
Also Published As
Publication number | Publication date |
---|---|
JPS5750105B2 (en) | 1982-10-26 |
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