JPS5634270A - Connection system between main units in key telephone set - Google Patents
Connection system between main units in key telephone setInfo
- Publication number
- JPS5634270A JPS5634270A JP10972479A JP10972479A JPS5634270A JP S5634270 A JPS5634270 A JP S5634270A JP 10972479 A JP10972479 A JP 10972479A JP 10972479 A JP10972479 A JP 10972479A JP S5634270 A JPS5634270 A JP S5634270A
- Authority
- JP
- Japan
- Prior art keywords
- telephone set
- key telephone
- key
- extension
- switch element
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Abstract
PURPOSE:To make it possible to extend main wires and telephone sets without exchange of the provided equipment, by adding the same kind of key telephone set to the provided key telephone set and by connecting these sets between main units to make the scale double. CONSTITUTION:In case of extension calling service of key telephone set 20 from key telephone set 10, switch 16 is closed by hooking off the handset in key telephone set 10 and operating the extension key and so on, and extension link 31 is connected to key telephone set 10. Next, the dial signal dependent upon dial operations and so on is input to control circuit 34 through extension link 31, and its information is sent to control circuit 44 through control line 53. By these operations, switch elements 18, 55 and 28 are closed by output signals of control circuits 34 and 44, and a service circuit is formed through the route of telephone set 10 switch element 16 extension link 31 switch element 55 main unit link 43 switch element 28 telephone set 20 between telephone sets 10 and 20, thus making service possible.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10972479A JPS6052635B2 (en) | 1979-08-30 | 1979-08-30 | Connection method between main devices in button telephone equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10972479A JPS6052635B2 (en) | 1979-08-30 | 1979-08-30 | Connection method between main devices in button telephone equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5634270A true JPS5634270A (en) | 1981-04-06 |
JPS6052635B2 JPS6052635B2 (en) | 1985-11-20 |
Family
ID=14517612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10972479A Expired JPS6052635B2 (en) | 1979-08-30 | 1979-08-30 | Connection method between main devices in button telephone equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6052635B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5922498A (en) * | 1982-07-29 | 1984-02-04 | Toshiba Corp | Telephone system using line in common |
JPS60183897A (en) * | 1984-03-02 | 1985-09-19 | Nec Corp | Wire broadcast telephone exchange |
JPS61218295A (en) * | 1985-03-25 | 1986-09-27 | Nitsuko Ltd | Connecting system for inter-key telephone sets |
JPH07322314A (en) * | 1994-05-23 | 1995-12-08 | Hitachi Electron Service Co Ltd | Method for increasing extension line for small-sized private branch line controller |
-
1979
- 1979-08-30 JP JP10972479A patent/JPS6052635B2/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5922498A (en) * | 1982-07-29 | 1984-02-04 | Toshiba Corp | Telephone system using line in common |
JPS60183897A (en) * | 1984-03-02 | 1985-09-19 | Nec Corp | Wire broadcast telephone exchange |
JPS61218295A (en) * | 1985-03-25 | 1986-09-27 | Nitsuko Ltd | Connecting system for inter-key telephone sets |
JPH07322314A (en) * | 1994-05-23 | 1995-12-08 | Hitachi Electron Service Co Ltd | Method for increasing extension line for small-sized private branch line controller |
Also Published As
Publication number | Publication date |
---|---|
JPS6052635B2 (en) | 1985-11-20 |
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