JPS5746547A - Data transmission system - Google Patents

Data transmission system

Info

Publication number
JPS5746547A
JPS5746547A JP55122993A JP12299380A JPS5746547A JP S5746547 A JPS5746547 A JP S5746547A JP 55122993 A JP55122993 A JP 55122993A JP 12299380 A JP12299380 A JP 12299380A JP S5746547 A JPS5746547 A JP S5746547A
Authority
JP
Japan
Prior art keywords
signal
station
svc
outputs
substation
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
Application number
JP55122993A
Other languages
Japanese (ja)
Inventor
Takamasa Koga
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP55122993A priority Critical patent/JPS5746547A/en
Publication of JPS5746547A publication Critical patent/JPS5746547A/en
Pending legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

PURPOSE:To reconstitute a circuit surely regardless of faults of a monitor station, transmission lines and substations, by giving the function of the monitor station to an optional substation cascaded on the transmission line. CONSTITUTION:When abnormality occurs in a monitor station SVC', an abnormality signal SGA1 is outputted from the station SVC' onto a signal line SL. When detecting the signal SGA1, a switching interface IF-SVC outputs a SVC indicating signal SGSV1 to a substation ST3'. The function of the monitor station is given to the station ST3' by the signal SGSV1, and the station ST3' takes the leadership in reconstitution of the circuit and outputs a normality signal SGN2 onto a signal line SL'. The IF-SVC detects this signal SGN2 and outputs a substation indicating signal SGST1 to the station SVC' to indicate that the leadership in reconstitution of the circuit is transferred to the station ST3'.
JP55122993A 1980-09-05 1980-09-05 Data transmission system Pending JPS5746547A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55122993A JPS5746547A (en) 1980-09-05 1980-09-05 Data transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55122993A JPS5746547A (en) 1980-09-05 1980-09-05 Data transmission system

Publications (1)

Publication Number Publication Date
JPS5746547A true JPS5746547A (en) 1982-03-17

Family

ID=14849621

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55122993A Pending JPS5746547A (en) 1980-09-05 1980-09-05 Data transmission system

Country Status (1)

Country Link
JP (1) JPS5746547A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62217251A (en) * 1986-03-19 1987-09-24 Oji Paper Co Ltd Electrostatic recording body

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62217251A (en) * 1986-03-19 1987-09-24 Oji Paper Co Ltd Electrostatic recording body

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