JPS5368010A - Ring trip circuit - Google Patents
Ring trip circuitInfo
- Publication number
- JPS5368010A JPS5368010A JP14309176A JP14309176A JPS5368010A JP S5368010 A JPS5368010 A JP S5368010A JP 14309176 A JP14309176 A JP 14309176A JP 14309176 A JP14309176 A JP 14309176A JP S5368010 A JPS5368010 A JP S5368010A
- Authority
- JP
- Japan
- Prior art keywords
- trip circuit
- ring trip
- signal
- line
- 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.)
- Pending
Links
Landscapes
- Devices For Supply Of Signal Current (AREA)
Abstract
PURPOSE: To soften the limitation for the number of the telephone set which can be connected to the subscriber's line resistance and one signal call line, by performing a detection of the DC element for the signal line during a specified period of the signal voltage.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14309176A JPS5368010A (en) | 1976-11-29 | 1976-11-29 | Ring trip circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14309176A JPS5368010A (en) | 1976-11-29 | 1976-11-29 | Ring trip circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5368010A true JPS5368010A (en) | 1978-06-17 |
Family
ID=15330692
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14309176A Pending JPS5368010A (en) | 1976-11-29 | 1976-11-29 | Ring trip circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5368010A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58207758A (en) * | 1982-03-24 | 1983-12-03 | シ・エツセ・エ・エレ・チ・セントロ・ステユデイ・エ・ラボラトリ・テレコミニカチオ−ニ・エツセ・ピ−・ア− | Receiver pickup detecting circuit |
JPS616961A (en) * | 1984-03-26 | 1986-01-13 | ジ−メンス・アクチエンゲゼルシヤフト | Small scale telephone private exchange circuit device |
JPS6277746A (en) * | 1985-10-01 | 1987-04-09 | Oki Electric Ind Co Ltd | Ring trip system |
-
1976
- 1976-11-29 JP JP14309176A patent/JPS5368010A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58207758A (en) * | 1982-03-24 | 1983-12-03 | シ・エツセ・エ・エレ・チ・セントロ・ステユデイ・エ・ラボラトリ・テレコミニカチオ−ニ・エツセ・ピ−・ア− | Receiver pickup detecting circuit |
JPS616961A (en) * | 1984-03-26 | 1986-01-13 | ジ−メンス・アクチエンゲゼルシヤフト | Small scale telephone private exchange circuit device |
JPS6277746A (en) * | 1985-10-01 | 1987-04-09 | Oki Electric Ind Co Ltd | Ring trip system |
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