JPS55130266A - Control system for attendant board - Google Patents
Control system for attendant boardInfo
- Publication number
- JPS55130266A JPS55130266A JP3757979A JP3757979A JPS55130266A JP S55130266 A JPS55130266 A JP S55130266A JP 3757979 A JP3757979 A JP 3757979A JP 3757979 A JP3757979 A JP 3757979A JP S55130266 A JPS55130266 A JP S55130266A
- Authority
- JP
- Japan
- Prior art keywords
- supplied
- aural
- data
- control
- attendant board
- 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)
- Exchange Systems With Centralized Control (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
Abstract
PURPOSE:To realize formation of the transmission/reception common transmission line between the exchange and the attendant board for the time-division exchange system, by carrying out the digital multiplication/isolation to the aural and control signals. CONSTITUTION:The aural signal data of the attendant board operator which received the PCM coding at the attendant board and via the coder is converted into the serial signal to be supplied to the multiplying circuit. On the other hand, the control signal produced via the key or the like is coded through the process circuit and then supplied to the multiplying circuit in the form of the serial signal. Then the multiplied aural and control signals are transmitted to the exchange for isolation, and thus the aural data is supplied to the time-division switch. And the control data is supplied to the fixed circuit after the information process. In the same way, both the aural signal and control signal data sent from the exchange are transmitted to the attendant board. And the isolated aural data is supplied to the telephone receiver via the decoder; while the control signal is supplied for control of the lamp or the like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3757979A JPS55130266A (en) | 1979-03-29 | 1979-03-29 | Control system for attendant board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3757979A JPS55130266A (en) | 1979-03-29 | 1979-03-29 | Control system for attendant board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55130266A true JPS55130266A (en) | 1980-10-08 |
Family
ID=12501440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3757979A Pending JPS55130266A (en) | 1979-03-29 | 1979-03-29 | Control system for attendant board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55130266A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57164651A (en) * | 1981-03-20 | 1982-10-09 | Fujitsu Ltd | Control system for switchboard |
| JPS61269550A (en) * | 1985-05-24 | 1986-11-28 | Nec Corp | Attendant board display data transmission system |
| JPS62226760A (en) * | 1986-03-27 | 1987-10-05 | Nec Corp | Digital exchange with exchange board |
-
1979
- 1979-03-29 JP JP3757979A patent/JPS55130266A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57164651A (en) * | 1981-03-20 | 1982-10-09 | Fujitsu Ltd | Control system for switchboard |
| JPS61269550A (en) * | 1985-05-24 | 1986-11-28 | Nec Corp | Attendant board display data transmission system |
| JPS62226760A (en) * | 1986-03-27 | 1987-10-05 | Nec Corp | Digital exchange with exchange board |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0271805A3 (en) | Transmission system | |
| JPS5563166A (en) | Continuous transmission system for picture information | |
| JPS55137761A (en) | Composite private unit | |
| JPS55130266A (en) | Control system for attendant board | |
| JPS5630347A (en) | Single-speed digital subscriber's line transmission system | |
| JPS5628548A (en) | Talking set system of voice packet | |
| JPS5225515A (en) | Side tone circuit for prestoke type transceiver | |
| JPS56122268A (en) | Digital signal system for exchange | |
| JPS5443431A (en) | Communication control unit | |
| JPS54154901A (en) | Talking system between moving object and ground unit | |
| JPS5791067A (en) | Data transmission and reception device | |
| JPS5440503A (en) | Digital signal system | |
| JPS5733865A (en) | Storing system of remote switchboard | |
| JPS5769965A (en) | Remote station communicating system | |
| JPS6467039A (en) | Method and system for transmission/reception diversity | |
| JPS5627547A (en) | Method and device for predictive coding and decoding | |
| JPS5570163A (en) | Facsimile communication system for original of fixed format | |
| JPS53131706A (en) | Automatic telephone exchange system | |
| JPS56102139A (en) | Channel selection controlling system | |
| JPS5656053A (en) | Multiplex communication system for sound signal and data or picture signal | |
| JPS54118108A (en) | Remote office controlling signal transmission/reception system | |
| JPS57116454A (en) | Signal transmission system | |
| JPS5370711A (en) | Picture image transmitting system | |
| JPS5525224A (en) | Facsimile automatic repeating installation | |
| JPS5639674A (en) | Signal tone transmission system |