JPS57190430A - Line switching system - Google Patents

Line switching system

Info

Publication number
JPS57190430A
JPS57190430A JP7531181A JP7531181A JPS57190430A JP S57190430 A JPS57190430 A JP S57190430A JP 7531181 A JP7531181 A JP 7531181A JP 7531181 A JP7531181 A JP 7531181A JP S57190430 A JPS57190430 A JP S57190430A
Authority
JP
Japan
Prior art keywords
line
trouble
switching
slave station
sent
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
JP7531181A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6242421B2 (enrdf_load_stackoverflow
Inventor
Susumu Sasabe
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP7531181A priority Critical patent/JPS57190430A/ja
Publication of JPS57190430A publication Critical patent/JPS57190430A/ja
Publication of JPS6242421B2 publication Critical patent/JPS6242421B2/ja
Granted 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
JP7531181A 1981-05-19 1981-05-19 Line switching system Granted JPS57190430A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7531181A JPS57190430A (en) 1981-05-19 1981-05-19 Line switching system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7531181A JPS57190430A (en) 1981-05-19 1981-05-19 Line switching system

Publications (2)

Publication Number Publication Date
JPS57190430A true JPS57190430A (en) 1982-11-24
JPS6242421B2 JPS6242421B2 (enrdf_load_stackoverflow) 1987-09-08

Family

ID=13572575

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7531181A Granted JPS57190430A (en) 1981-05-19 1981-05-19 Line switching system

Country Status (1)

Country Link
JP (1) JPS57190430A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0163412U (enrdf_load_stackoverflow) * 1987-10-19 1989-04-24

Also Published As

Publication number Publication date
JPS6242421B2 (enrdf_load_stackoverflow) 1987-09-08

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