JPS5873265A - リングトリツプ方式 - Google Patents

リングトリツプ方式

Info

Publication number
JPS5873265A
JPS5873265A JP17241881A JP17241881A JPS5873265A JP S5873265 A JPS5873265 A JP S5873265A JP 17241881 A JP17241881 A JP 17241881A JP 17241881 A JP17241881 A JP 17241881A JP S5873265 A JPS5873265 A JP S5873265A
Authority
JP
Japan
Prior art keywords
switch
signal
line
switches
ring
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
JP17241881A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0241940B2 (OSRAM
Inventor
Kenzo Hasegawa
長谷川　賢造
Yoshinori Oikawa
及川　義則
Toshio Arai
俊雄 荒井
Koichi Hasegawa
浩一 長谷川
Hidehiro Sato
佐藤　栄裕
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.)
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Oki Electric Industry Co Ltd
NTT Inc
Original Assignee
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
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 Fujitsu Ltd, Hitachi Ltd, NEC Corp, Nippon Telegraph and Telephone Corp, Oki Electric Industry Co Ltd, Nippon Electric Co Ltd filed Critical Fujitsu Ltd
Priority to JP17241881A priority Critical patent/JPS5873265A/ja
Publication of JPS5873265A publication Critical patent/JPS5873265A/ja
Publication of JPH0241940B2 publication Critical patent/JPH0241940B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/02—Calling substations, e.g. by ringing

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
JP17241881A 1981-10-28 1981-10-28 リングトリツプ方式 Granted JPS5873265A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17241881A JPS5873265A (ja) 1981-10-28 1981-10-28 リングトリツプ方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17241881A JPS5873265A (ja) 1981-10-28 1981-10-28 リングトリツプ方式

Publications (2)

Publication Number Publication Date
JPS5873265A true JPS5873265A (ja) 1983-05-02
JPH0241940B2 JPH0241940B2 (OSRAM) 1990-09-20

Family

ID=15941589

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17241881A Granted JPS5873265A (ja) 1981-10-28 1981-10-28 リングトリツプ方式

Country Status (1)

Country Link
JP (1) JPS5873265A (OSRAM)

Also Published As

Publication number Publication date
JPH0241940B2 (OSRAM) 1990-09-20

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