JPS5537075A - Exchange system - Google Patents
Exchange systemInfo
- Publication number
- JPS5537075A JPS5537075A JP11051178A JP11051178A JPS5537075A JP S5537075 A JPS5537075 A JP S5537075A JP 11051178 A JP11051178 A JP 11051178A JP 11051178 A JP11051178 A JP 11051178A JP S5537075 A JPS5537075 A JP S5537075A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- digital
- terminal
- switch
- subscriber
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
Abstract
PURPOSE:To omit the MODEM of the digital terminal and then to realiize the use of a high-speed digital terminal by securing a switchable connection between a subscriber circuit and the analog terminal of the telephone set or the like plus the digital terminal of the data facsimile or the like. CONSTITUTION:Subscriber's private system 21 containing telephone 4 which can be switched via switch 6 and digital terminal 5 is connected to digital exchange 19 containing digital switch 1 giving a time-division exchange to the digital signal as well as subscriber circuit 3. Then the analog signal sent from circuit 20 is converted via sampling circiuit 13 of circuit 3 into the digital signal to be applied to switch 1, and the signal from switch 1 is converted into the analog signal via decoding circuit 16 to be supplied to circuit 20. And encoding and decoding selection circuits 9 and 10 connected to selection control circuit 18 which gives a selective control to circuit 13 and 16 by the control of control circuit 2 are provided to circuit 3. Thus terminal 5 can be used through a high-speed switching.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11051178A JPS5537075A (en) | 1978-09-08 | 1978-09-08 | Exchange system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11051178A JPS5537075A (en) | 1978-09-08 | 1978-09-08 | Exchange system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5537075A true JPS5537075A (en) | 1980-03-14 |
Family
ID=14537631
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11051178A Pending JPS5537075A (en) | 1978-09-08 | 1978-09-08 | Exchange system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5537075A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5473682A (en) * | 1992-02-12 | 1995-12-05 | Fujitsu Limited | Automatic signalling-system switching device for digital line circuit device in subscriber system |
-
1978
- 1978-09-08 JP JP11051178A patent/JPS5537075A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5473682A (en) * | 1992-02-12 | 1995-12-05 | Fujitsu Limited | Automatic signalling-system switching device for digital line circuit device in subscriber system |
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