JPS54148408A - Transmission line return control system - Google Patents

Transmission line return control system

Info

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
Application number
JP5656678A
Other languages
Japanese (ja)
Other versions
JPS5750105B2 (en
Inventor
Satokazu Saito
Isao Kawamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP5656678A priority Critical patent/JPS54148408A/en
Publication of JPS54148408A publication Critical patent/JPS54148408A/en
Publication of JPS5750105B2 publication Critical patent/JPS5750105B2/ja
Granted legal-status Critical Current

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
JP5656678A 1978-05-15 1978-05-15 Transmission line return control system Granted JPS54148408A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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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