JPS6178246A - Data transmission system - Google Patents
Data transmission systemInfo
- Publication number
- JPS6178246A JPS6178246A JP59201189A JP20118984A JPS6178246A JP S6178246 A JPS6178246 A JP S6178246A JP 59201189 A JP59201189 A JP 59201189A JP 20118984 A JP20118984 A JP 20118984A JP S6178246 A JPS6178246 A JP S6178246A
- Authority
- JP
- Japan
- Prior art keywords
- light
- signal
- electronic exchange
- terminal device
- reception device
- 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
- 230000005540 biological transmission Effects 0.000 title claims abstract description 17
- 230000003287 optical effect Effects 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims description 4
- 230000001902 propagating effect Effects 0.000 claims 1
- 230000000644 propagated effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
Landscapes
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
Description
【発明の詳細な説明】
（技術分野）
本発明はデータ伝送方式、特に電子交換機及び電子交換
機に付帯する端末装置との間のデータ伝送方式に関する
。DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a data transmission system, and particularly to a data transmission system between an electronic exchange and a terminal device attached to the electronic exchange.
（従来技術）
従来、この種の端末装置は電子交換機とデータ伝送を行
なう場合、第２図に示すように導線１２により電子交換
機１と端末装置６，９を接続し、導線に電気信号を伝送
する方法または、光ケーブルにより光信号を伝送する方
法がとられていた。(Prior Art) Conventionally, when this type of terminal device performs data transmission with an electronic exchange, the electronic exchange 1 and the terminal devices 6 and 9 are connected by a conductor 12 as shown in FIG. A method of transmitting an optical signal using an optical cable has been used.
尚第１図で、２は通話路スイッチ、３は中央制御装置、
４，５は電子交換機の入出力回路、７゜１０は端末装置
の入出力回路、８，１１は制御回路である。In Fig. 1, 2 is a communication path switch, 3 is a central control unit,
4 and 5 are input/output circuits of the electronic exchange, 7.degree. 10 is an input/output circuit of the terminal device, and 8 and 11 are control circuits.
しかし、このよう々構成では端末装置の設置場所がケー
ブルに制約を受は不便であったり、また同一端末装置を
複数個設置する場合、必要な端末装置の数だけ電子交換
機側に入出力端子を用意しておく必要があり不経済であ
った。However, with this configuration, the installation location of the terminal equipment is inconvenient due to cable restrictions, and when multiple terminal equipment are installed, it is necessary to install input/output terminals on the electronic exchange side for the number of terminal equipment required. It was uneconomical because it had to be prepared in advance.
（発明の目的）
本発明の目的は電子交換機と該電子交換機に付帯する端
末装置間のデータ伝送に空間を伝搬する光信号を使用す
ることによシ、導線あるいは光ケーブル等による端末装
置の設置場所の制約を除くとともに、光信号の届く範囲
内では、単に端末装置を増加するだけで電子交換機よシ
複数の端末装置を駆動すること大可能とするデータ伝送
方式をとデータの送受を行なう端末装置において、電子
交換機側に電気信号を光信号に変換する手段及び光信号
を電気信号に変換する手段を、また端末装置側に電気信
号を光信号に変換する手段及び光信号を電気信号に変換
する手段を設け、前記電子交換機及び端末装置の間を空
間を伝搬する光信号によりデータ伝送することを特徴と
するデータ伝送方式が得られる。(Object of the Invention) The object of the present invention is to transmit data between an electronic exchange and a terminal device attached to the electronic exchange by using an optical signal that propagates in space. Terminal equipment that sends and receives data using a data transmission system that eliminates the limitations of optical signals and allows multiple terminal equipment to be driven by simply increasing the number of terminal equipment within the reach of optical signals. , a means for converting an electrical signal into an optical signal and a means for converting an optical signal into an electrical signal are provided on the electronic exchange side, and a means for converting an electrical signal into an optical signal and a means for converting an optical signal into an electrical signal are provided on the terminal device side. A data transmission method is obtained, characterized in that the data transmission method is characterized in that a means is provided, and data is transmitted between the electronic exchange and the terminal device using an optical signal that propagates in space.
（実施例） 次に本発明の実施例を図面について説明する。(Example) Next, embodiments of the present invention will be described with reference to the drawings.
第１図は本発明の一実施例のブロック図で、第２図と同
一符号は同一部分を示し、２１． ２４゜２５は光送受
信器、２２，２７．２９は発光部、２３．２６．２８は
受光部である。FIG. 1 is a block diagram of an embodiment of the present invention, in which the same reference numerals as in FIG. 2 indicate the same parts, and 21. Reference numerals 24 and 25 are optical transceivers, 22, 27, and 29 are light emitting sections, and 23, 26, and 28 are light receiving sections.
電子交換機１よ多端末装置６にデータを伝送する場合は
、中央制御装置３より光送受信器２１に電気信号を送出
する。光送受信器２１では電気信号を光信号に変換し発
光部２２よシ光信号を空間に放射する。この光を光送受
信器２４の受光部２６で検出し、光送受信器２４で光信
号を電気信号に変換Ｌ／４、端末装置６の制御回路８に
伝送する。When transmitting data from the electronic exchange 1 to the multi-terminal device 6, an electrical signal is sent from the central control device 3 to the optical transceiver 21. The optical transceiver 21 converts the electrical signal into an optical signal, and the light emitting section 22 emits the optical signal into space. This light is detected by the light receiving section 26 of the optical transceiver 24, which converts the optical signal into an electrical signal L/4 and transmits it to the control circuit 8 of the terminal device 6.
一方端末装置６の制御回路８よシミ子交換機１にデータ
を伝送する場合は、制御回路８より電気信号を光送受信
器２４に送出し、該光送受信器２４では電気信号を光信
号に変換し発光部２７よシ光を光送受信器２１の受光部
２３に向は空間に放射する。電子交換機側では受光部２
３によシ前記光信号を検出し光信号を電気信号に変換し
中央制御装置３に伝送する。On the other hand, when transmitting data from the control circuit 8 of the terminal device 6 to the simulator switch 1, the control circuit 8 sends an electrical signal to the optical transceiver 24, and the optical transceiver 24 converts the electrical signal into an optical signal. The light emitting section 27 emits light toward the light receiving section 23 of the optical transceiver 21 into space. On the electronic exchange side, the light receiving section 2
3 detects the optical signal, converts the optical signal into an electrical signal, and transmits it to the central controller 3.
本発明において使用する光信号に広い指向性のものを使
用すれば、１つの端末装置６だけでなく、仮数の端末装
置９なども同様に光信号の届く範囲内で使用できること
は自明である。It is obvious that if the optical signal used in the present invention has a wide directivity, not only one terminal device 6 but also the mantissa terminal device 9 can be used within the range of the optical signal.
また、本発明の実施例では双方向のデータ伝送が必要な
場合を示したが、片方向のデータ伝送だけで良い場合は
、３→２１→２３→２６→２４→８まだは、８→２４→
２７→２３→２１→３のどちらか不要な方向の伝送手段
を省略できることは自明である。In addition, although the embodiment of the present invention shows a case where bidirectional data transmission is required, when only one-way data transmission is required, 3 → 21 → 23 → 26 → 24 → 8, 8 → 24 →
It is obvious that the transmission means in any unnecessary direction of 27→23→21→3 can be omitted.
（発明の効果）
本発明は導線や光ケーブルをなくシ、設置上の制約をな
くすことができるばかシでなく、電子交換機側の・・−
ドウエアを増加することなく、端末装置の増加だけで機
能の拡充ができる効果がある。(Effects of the Invention) The present invention is not only a simple solution that eliminates the need for conducting wires and optical cables, and also eliminates restrictions on installation.
This has the effect that functions can be expanded simply by increasing the number of terminal devices without increasing the number of hardware.
第１図は本発明の一実施例のブロック図、第２図は従来
の方式の一例のブロック図を示す。
１・・・・・・電子交換機、２・・・・・・通話路スイ
ッチ、３・・・・・・中央制御装置、４，５・・・・・
・電子交換機の入出力回路、７．１０・・・・・・端末
装置の入出力回路、６゜９・・・・・・端末装置、８．
１１・・・・・・端末装置の制御回路、２３・・・・・
・電子交換機の光送受信器、２４゜２５・・・・・・端
末装置の光送受信器、２２． ２７゜、べ５−
２９・・・・・・発光部、２３，２６．２８・・・・・
・受光部。FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a block diagram of an example of a conventional system. 1...Electronic exchange, 2...Call path switch, 3...Central control unit, 4, 5...
- Input/output circuit of electronic exchange, 7.10...Input/output circuit of terminal device, 6゜9...Terminal device, 8.
11... Control circuit of terminal device, 23...
- Optical transceiver of electronic exchange, 24°25... Optical transceiver of terminal equipment, 22. 27°, Be5- 29... Light emitting part, 23, 26.28...
·Light receiving section.
Claims (1)
端末装置において、電子交換機側に電気信号を光信号に
変換する手段及び光信号を電気信号に変換する手段を、
また端末装置側に電気信号を光信号に変換する手段及び
光信号を電気信号に変換する手段を設け、前記電子交換
機及び端末装置の間を空間を伝搬する光信号によりデー
タ伝送することを特徴とするデータ伝送方式。In an electronic exchange and a terminal device that sends and receives data to and from the electronic exchange, means for converting an electrical signal into an optical signal and a means for converting an optical signal into an electrical signal are provided on the electronic exchange side.
Further, the terminal device is provided with means for converting an electrical signal into an optical signal and a means for converting an optical signal into an electrical signal, and data is transmitted between the electronic exchange and the terminal device by an optical signal propagating in space. data transmission method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59201189A JPS6178246A (en) | 1984-09-26 | 1984-09-26 | Data transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59201189A JPS6178246A (en) | 1984-09-26 | 1984-09-26 | Data transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6178246A true JPS6178246A (en) | 1986-04-21 |
Family
ID=16436822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59201189A Pending JPS6178246A (en) | 1984-09-26 | 1984-09-26 | Data transmission system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6178246A (en) |
-
1984
- 1984-09-26 JP JP59201189A patent/JPS6178246A/en active Pending
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