JPS5432908A - Main wire centralized ringing device for telephone - Google Patents
Main wire centralized ringing device for telephoneInfo
- 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
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
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.
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)
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)
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 |
-
1977
- 1977-08-19 JP JP9968677A patent/JPS5432908A/en active Granted
Patent Citations (2)
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)
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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