JPS5432908A - Main wire centralized ringing device for telephone - Google Patents

Main wire centralized ringing device for telephone

Info

Publication number
JPS5432908A
JPS5432908A JP9968677A JP9968677A JPS5432908A JP S5432908 A JPS5432908 A JP S5432908A JP 9968677 A JP9968677 A JP 9968677A JP 9968677 A JP9968677 A JP 9968677A JP S5432908 A JPS5432908 A JP S5432908A
Authority
JP
Japan
Prior art keywords
main wire
telephone
ringing device
wire centralized
centralized
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
JP9968677A
Other languages
Japanese (ja)
Other versions
JPS5737267B2 (en
Inventor
Senzo Morita
Kunihiko Kojima
Osamu Mochizuki
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.)
NTT Inc
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP9968677A priority Critical patent/JPS5432908A/en
Publication of JPS5432908A publication Critical patent/JPS5432908A/en
Publication of JPS5737267B2 publication Critical patent/JPS5737267B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
    • H04M9/003—Transmission of control signals from or to the key telephone set; signalling equipment at key telephone set, e.g. keyboard or display equipment

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

PURPOSE:To reduce the installation space by connecting plural main wire circuits in parallel to one incoming signal indicator in the key telephone system.
JP9968677A 1977-08-19 1977-08-19 Main wire centralized ringing device for telephone Granted JPS5432908A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9968677A JPS5432908A (en) 1977-08-19 1977-08-19 Main wire centralized ringing device for telephone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9968677A JPS5432908A (en) 1977-08-19 1977-08-19 Main wire centralized ringing device for telephone

Publications (2)

Publication Number Publication Date
JPS5432908A true JPS5432908A (en) 1979-03-10
JPS5737267B2 JPS5737267B2 (en) 1982-08-09

Family

ID=14253912

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9968677A Granted JPS5432908A (en) 1977-08-19 1977-08-19 Main wire centralized ringing device for telephone

Country Status (1)

Country Link
JP (1) JPS5432908A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60260289A (en) * 1984-06-07 1985-12-23 Matsushita Electric Ind Co Ltd Telephone line display device and telephone set having it

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4415371Y1 (en) * 1965-06-30 1969-07-03
JPS523307A (en) * 1975-06-25 1977-01-11 Iwatsu Electric Co Ltd Torn ringer circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4415371Y1 (en) * 1965-06-30 1969-07-03
JPS523307A (en) * 1975-06-25 1977-01-11 Iwatsu Electric Co Ltd Torn ringer circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60260289A (en) * 1984-06-07 1985-12-23 Matsushita Electric Ind Co Ltd Telephone line display device and telephone set having it

Also Published As

Publication number Publication date
JPS5737267B2 (en) 1982-08-09

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