JPS56104551A - Line switching system - Google Patents

Line switching system

Info

Publication number
JPS56104551A
JPS56104551A JP712380A JP712380A JPS56104551A JP S56104551 A JPS56104551 A JP S56104551A JP 712380 A JP712380 A JP 712380A JP 712380 A JP712380 A JP 712380A JP S56104551 A JPS56104551 A JP S56104551A
Authority
JP
Japan
Prior art keywords
line
fault
input
time
output terminals
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
JP712380A
Other languages
Japanese (ja)
Inventor
Masahide Narueda
Atsushi Takemura
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 JP712380A priority Critical patent/JPS56104551A/en
Publication of JPS56104551A publication Critical patent/JPS56104551A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To shorten a switching time and break the signal between input and output terminals instantaneously, by constituting the change-over switch by which any line can be connected to arbitrary input terminal and output terminal. CONSTITUTION:If a fault occurs on line 7' at time T1, input and output terminals 1 and 2 and line 7 are connected at time T1+DELTAt to recover the fault. Line 7' is disconnected from input and output terminals to become a stand-by line. If a fault occurs on line 7'' at time T2, input and output terminals 1' and 2' and line 7' are connected at time T2+DELTAt to recover the fault. Line 7'' is disconnected from input and output terminals 1' and 2' to become a stand-by line. As a result, switching is performed at the same time DELTAt even for the succeeding fault. Even if the fault is restored, the line of the preceding fault is continued switching.
JP712380A 1980-01-24 1980-01-24 Line switching system Pending JPS56104551A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP712380A JPS56104551A (en) 1980-01-24 1980-01-24 Line switching system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP712380A JPS56104551A (en) 1980-01-24 1980-01-24 Line switching system

Publications (1)

Publication Number Publication Date
JPS56104551A true JPS56104551A (en) 1981-08-20

Family

ID=11657290

Family Applications (1)

Application Number Title Priority Date Filing Date
JP712380A Pending JPS56104551A (en) 1980-01-24 1980-01-24 Line switching system

Country Status (1)

Country Link
JP (1) JPS56104551A (en)

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