JPS5791060A - Line restoring detector - Google Patents

Line restoring detector

Info

Publication number
JPS5791060A
JPS5791060A JP16708180A JP16708180A JPS5791060A JP S5791060 A JPS5791060 A JP S5791060A JP 16708180 A JP16708180 A JP 16708180A JP 16708180 A JP16708180 A JP 16708180A JP S5791060 A JPS5791060 A JP S5791060A
Authority
JP
Japan
Prior art keywords
types
restoration
output terminals
independently
sure
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
JP16708180A
Other languages
Japanese (ja)
Inventor
Takato Ooi
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.)
NIHON RESUKO KK
NIPPON RESUKO KK
Original Assignee
NIHON RESUKO KK
NIPPON RESUKO KK
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 NIHON RESUKO KK, NIPPON RESUKO KK filed Critical NIHON RESUKO KK
Priority to JP16708180A priority Critical patent/JPS5791060A/en
Publication of JPS5791060A publication Critical patent/JPS5791060A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

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

Abstract

PURPOSE:To achieve a sure operation without any restriction independently of types of relay exchanger with a simple constitution, by detecting an instantaneous wave generated at another end through open end, in a cable transmission and using it as restoration informing signal. CONSTITUTION:Since restoration switches 2, 8 are closed during the use of line, a current flows to a detection section 12 through a non-polarity part 10 and no output appears at output terminals 13, 14. When a restoring state is obtained by opening the switch 2, an instantaneous wave is induced and transmitted and outputted at the output terminals 13, 14 of the section 12. Thus, sure and quick detection can be made economically independently of types of relay exchanger without polarity and adjustment.
JP16708180A 1980-11-27 1980-11-27 Line restoring detector Pending JPS5791060A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16708180A JPS5791060A (en) 1980-11-27 1980-11-27 Line restoring detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16708180A JPS5791060A (en) 1980-11-27 1980-11-27 Line restoring detector

Publications (1)

Publication Number Publication Date
JPS5791060A true JPS5791060A (en) 1982-06-07

Family

ID=15843043

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16708180A Pending JPS5791060A (en) 1980-11-27 1980-11-27 Line restoring detector

Country Status (1)

Country Link
JP (1) JPS5791060A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4894304A (en) * 1972-03-11 1973-12-05
JPS5255416A (en) * 1975-10-31 1977-05-06 Nec Home Electronics Ltd Automatic telephone answering set

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4894304A (en) * 1972-03-11 1973-12-05
JPS5255416A (en) * 1975-10-31 1977-05-06 Nec Home Electronics Ltd Automatic telephone answering set

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