JPS5915422B2 - Optical transmission method between packages - Google Patents
Optical transmission method between packagesInfo
- Publication number
- JPS5915422B2 JPS5915422B2 JP56111318A JP11131881A JPS5915422B2 JP S5915422 B2 JPS5915422 B2 JP S5915422B2 JP 56111318 A JP56111318 A JP 56111318A JP 11131881 A JP11131881 A JP 11131881A JP S5915422 B2 JPS5915422 B2 JP S5915422B2
- Authority
- JP
- Japan
- Prior art keywords
- optical
- package
- signal
- electrical
- signals
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/80—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water
- H04B10/801—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water using optical interconnects, e.g. light coupled isolators, circuit board interconnections
- H04B10/803—Free space interconnects, e.g. between circuit boards or chips
Description
【発明の詳細な説明】
この発明は例えば交換機の架内に設けられた複５ 数の
パッケージ間の信号伝送方式に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a signal transmission system between a plurality of packages provided within a rack of a switchboard, for example.
従来、この種のパッケージ間伝送にはパックワイヤリン
グボード（ＢＷＢ）とＢＷＢ用コネクタとが使われてい
た。この場合、パッケージの伝送信号が増大すれば、コ
ネクタの端子数が増大する１０が、パッケージ上に搭載
できるコネクタの数には制限があるし、コネクタを縮少
することにも限度がある。また、ＢＷＢのパターンも煩
雑化するという欠点があつた。この発明はパッケージ間
の伝送信号を多重化し１５た後、光信号に変換して信号
の授受を行なうことにより、複数パッケージ間の大容量
伝送を行なえるようにした伝送方式を提供するものであ
る。Conventionally, a pack wiring board (BWB) and a BWB connector have been used for this type of inter-package transmission. In this case, as the transmission signal of the package increases, the number of terminals of the connector increases10, but there is a limit to the number of connectors that can be mounted on the package, and there is also a limit to the reduction in the number of connectors. Another drawback is that the BWB pattern becomes complicated. This invention provides a transmission method that enables large-capacity transmission between multiple packages by multiplexing transmission signals between packages, converting the signals into optical signals, and transmitting and receiving the signals. .
この発明によれば複数のパッケージ間の信号伝送におい
て、パッケージから他のパッケージに送２０信すべき電
気信号は多重化回路により多重され、その多重された電
気信号を指定されたパッケージに送る場合はそれをメモ
リの内容で指示し、その電気信号を電気−光変換回路及
び発光素子により光信号に変換し、その光信号を光分岐
器で光ファ２５イバ等の光線路へ伝搬させる。一方光線
路の伝搬信号を光分岐器により光−電気変換回路へ分岐
し、その光信号を電気信号に変換し、必要に応じてその
電気信号の内で必要な電気信号だけをメモリの内容によ
り選択し、その選択された電気信号を多３０重分離回路
で多重分離する。このような多重化回路、電気−光変換
回路、発光素子、光分岐器、メモリ、光−電気変換回路
、多重分離回路を各パッケージに設け、所定のパッケー
ジ間において、光線路で光学的に信号の伝送を行なう。
何れのパツ３５ ケージヘの伝送かを区別しない場合や
、二つのパッケージ間の伝送ではパッケージ指定や選択
のためのメモリは省略される。次にこの発明の実施例に
ついて図面を参照して説明する。According to this invention, in signal transmission between a plurality of packages, electrical signals to be sent from one package to another package are multiplexed by a multiplexing circuit, and when the multiplexed electrical signals are sent to a designated package, This is indicated by the contents of the memory, the electric signal is converted into an optical signal by an electric-optical conversion circuit and a light emitting element, and the optical signal is propagated to an optical line such as an optical fiber 25 by an optical branching device. On the other hand, the propagation signal of the optical path is branched to an optical-to-electrical conversion circuit by an optical branching device, the optical signal is converted into an electrical signal, and only the necessary electrical signal is converted according to the contents of the memory. The selected electrical signals are demultiplexed by a multiplexing/demultiplexing circuit. Such multiplexing circuits, electrical-to-optical conversion circuits, light-emitting elements, optical branchers, memories, optical-to-electrical conversion circuits, and demultiplexing circuits are provided in each package, and signals are optically transmitted between predetermined packages using optical paths. transmission.
When there is no distinction as to which pack 35 the package is to be transmitted to, or when transmission is between two packages, the memory for specifying and selecting the package is omitted. Next, embodiments of the invention will be described with reference to the drawings.
第１図は光線路として光フアイバを用いた場合の例を示
し、複数のパツケージ１１，１２１３・・・・・・が対
向して順次配列される。FIG. 1 shows an example in which an optical fiber is used as the optical path, and a plurality of packages 11, 1213, . . . are sequentially arranged facing each other.
各パツケージ１上には多重化回路２と、多重分離回路３
と、多重化信号を制御するメモリ４及び５と、電気一光
変換回路及び発光素子を含むモジユール６と、光一電気
変換回路及び受光素子を含むモジユール７と、光分岐器
８と電源用コネクタ１１とがそれぞれ搭載されている。
各パツケージ１の光分岐器８は光フアイバ９及び１０と
結合し、各電源用コネクタ１１は共通の電源線１２に接
続されている。パツケージ１上で発生した電気信号は多
重化回路２で例えば時分割的に多重され、その多重化さ
れた電気信号、これが送られるべきパツケージをメモリ
４の内容により指定される。On each package 1 there is a multiplexing circuit 2 and a demultiplexing circuit 3.
, memories 4 and 5 for controlling multiplexed signals, a module 6 including an electrical-to-optical conversion circuit and a light-emitting element, a module 7 including an optical-to-electrical conversion circuit and a light-receiving element, an optical branching device 8, and a power supply connector 11 are installed respectively.
The optical splitter 8 of each package 1 is connected to optical fibers 9 and 10, and each power connector 11 is connected to a common power line 12. The electrical signals generated on the package 1 are multiplexed in a multiplexing circuit 2, for example, in a time division manner, and the contents of the memory 4 specify the package to which the multiplexed electrical signal is to be sent.
例えば送られるべきパツケージに応じたタイムスロツト
に割当てられる。その指定された多重化信号はモジユー
ル６により光信号に変換される。その光信号は光分岐器
８により光フアイバ９に伝送され、これより他のパツケ
ージに送られる。一方、光フアイバ１０に伝送されてい
る光信号は光分岐器８で分岐され、モジユール７により
電気信号に変換される。For example, it is assigned to a time slot depending on the package to be sent. The designated multiplexed signal is converted into an optical signal by module 6. The optical signal is transmitted by an optical splitter 8 to an optical fiber 9, from which it is sent to another package. On the other hand, the optical signal being transmitted to the optical fiber 10 is branched by the optical splitter 8 and converted into an electrical signal by the module 7.
その変換された電気信号はメモリ５の内容により必要な
信号だけが選択され、例えばメモリ５で指定されたタイ
ムスロツトだけが取出される。その選択された信号は多
重分離回路３で多重分離されてパツケージ内に伝送させ
る。光フアイバ９と１０はループ状に、光分岐器８を介
して連結されている。なお、この光フアイバはガラスあ
るいはブラスチツクのフアイバのいずれでも良く、個々
の場合に応じて選択される。パーケージ１上の動作上必
要な電力は電源用コネクタ１１を介して電源線１２より
供給される。第２図は光線路として光導波路を用いたこ
の発明の第二の実施例を示し、第１図と対応する部分に
は同一符号を付けてある。パツケージ１１１２１３Ｆラ
・・・・・・の各一万の端面と近接してプラスチツク導
波路基板１４が配され、その導波路基板１４には光導波
路１５，１６がそれぞれパツケージ配列方向に延長して
形成されているモジユール６の発光素子及びモジユール
７の受光素子とプラスチツク光導波路１５及び１６とは
それぞれコネクタ１３で光学的に結合される。From the converted electrical signals, only necessary signals are selected according to the contents of the memory 5, and, for example, only the time slots specified in the memory 5 are taken out. The selected signal is demultiplexed by the demultiplexing circuit 3 and transmitted into the package. Optical fibers 9 and 10 are connected in a loop via an optical splitter 8. Note that this optical fiber may be either glass or plastic fiber, which is selected depending on the individual case. Power necessary for the operation of the package 1 is supplied from a power line 12 via a power connector 11. FIG. 2 shows a second embodiment of the invention using an optical waveguide as the optical path, and parts corresponding to those in FIG. 1 are given the same reference numerals. A plastic waveguide substrate 14 is disposed close to each end face of the package 111213F, and optical waveguides 15 and 16 are formed on the waveguide substrate 14 extending in the package arrangement direction. The light emitting element of module 6 and the light receiving element of module 7 and plastic optical waveguides 15 and 16 are optically coupled by connectors 13, respectively.
この動作は第１図に示した実施例において、複数パツケ
ージ間の伝送媒体として光ケーブル９，１０の代りにプ
ラスチツク導波路１５，１６にかえ、光分岐器８を、発
光素子及び受光素子とプラスチツク光導波路とを光学的
に結合させるコネクタ１３にかえただけで、その他は同
じである。This operation is achieved by replacing the optical cables 9 and 10 with plastic waveguides 15 and 16 as the transmission medium between the plurality of packages in the embodiment shown in FIG. The only difference is that the connector 13 for optically coupling the wave path is used, and the other components are the same.
この発明は以上説明したように、パツケージ上に多重化
回路と、多重分離回路と、必要に応じて信号制御用メモ
リと、電気一光変換回路及び発光素子と、光一電気変換
回路及び受光素子と、光分岐器等と、光線路等を設けて
多数パツケージ間の信号を光信号にして伝送させること
により、電気コネクタの端子数増大化、ＢＷＢの煩雑化
の問題を解決し、パツケージ間の大容量伝送が行なえる
と共に、上記光伝送部の部品はコンパクトであり、パツ
ケージ上の部品実装が容易となる効果がある。特に光信
号に変換しているためパツケージ間の伝送が多重化電気
信号や電波信号の伝送と比較して多重度を著しく上げる
ことができ、かつ伝送路や変換部品を小形に構成するこ
とができる。As explained above, the present invention includes a multiplexing circuit, a demultiplexing circuit, a signal control memory if necessary, an electrical-to-optical conversion circuit and a light-emitting element, and an optical-to-electrical conversion circuit and a light-receiving element on a package. By installing optical splitters, optical lines, etc., and transmitting signals between multiple packages as optical signals, we can solve the problems of increasing the number of electrical connector terminals and complicating BWB, and In addition to being able to perform capacitive transmission, the components of the optical transmission section are compact, making it easy to mount components on a package. In particular, since it is converted into an optical signal, the degree of multiplicity can be significantly increased for transmission between packages compared to the transmission of multiplexed electrical signals or radio wave signals, and the transmission path and conversion parts can be made smaller. .
第１図はこの発明の一実施例を示す光フアイバを用いた
複数パツケージ間光伝送方式を示す斜視図、第２図はこ
の発明の他の実施例を示す斜視図である。
１：パツケージ、２：多重化回路、３：多重分離回路、
４，５：多重信号を制御するメモｌ八 ６：電気一光変
換回路及び発光素子を含むモジユール、７：光一電気変
換回路及び受光素子を含むモジユール、８：光分岐器、
９，１０：光フアイバ、１１：電源用コネクタ、１２：
電源線、１３：発光素子及び受光素子をプラスチツク光
導波路に光学的に結合させるコネクタ、１４：プラスチ
ツク光導波路基板、１５，１６：光導波路。FIG. 1 is a perspective view showing an optical transmission system between a plurality of packages using optical fibers according to one embodiment of the invention, and FIG. 2 is a perspective view showing another embodiment of the invention. 1: package, 2: multiplexing circuit, 3: demultiplexing circuit,
4, 5: Memory for controlling multiplexed signals 6: Module including an electrical-to-optical conversion circuit and a light emitting element; 7: Module including an optical-to-electrical conversion circuit and a light-receiving element; 8: Optical branching device;
9, 10: Optical fiber, 11: Power connector, 12:
Power supply line, 13: Connector for optically coupling the light emitting element and the light receiving element to the plastic optical waveguide, 14: Plastic optical waveguide substrate, 15, 16: Optical waveguide.
Claims (1)
から他のパッケージに送信すべき電気信号を多重する多
重化回路と、その多重化回路により多重された電気信号
を光信号に変換する電気−光変換回路及び発光素子と、
その変換された光信号の光線路に伝播させるための光分
岐器と、光線路より光信号をパッケージ内に伝播させる
ための光分岐器と、その光分岐器からの光信号を電気信
号に変換する光−電気変換回路及び受光素子と、その変
換された電気信号を多重分離する多重分離回路とを各パ
ッケージに設け、上記各パッケージの光分岐器を共通の
光線路に結合させたパッケージ間光伝送方式。1. In signal transmission between multiple packages, a multiplexing circuit that multiplexes electrical signals to be transmitted from one package to another package, an electrical-optical conversion circuit that converts the electrical signals multiplexed by the multiplexing circuit into optical signals, and A light emitting element,
An optical splitter for propagating the converted optical signal to the optical path, an optical splitter for propagating the optical signal from the optical path into the package, and converting the optical signal from the optical splitter into an electrical signal. An inter-package optical system in which each package is provided with an optical-to-electrical conversion circuit and a light receiving element, and a demultiplexing circuit that multiplexes and demultiplexes the converted electrical signals, and the optical splitters of each package are coupled to a common optical path. Transmission method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56111318A JPS5915422B2 (en) | 1981-07-15 | 1981-07-15 | Optical transmission method between packages |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56111318A JPS5915422B2 (en) | 1981-07-15 | 1981-07-15 | Optical transmission method between packages |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5812450A JPS5812450A (en) | 1983-01-24 |
| JPS5915422B2 true JPS5915422B2 (en) | 1984-04-09 |
Family
ID=14558175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56111318A Expired JPS5915422B2 (en) | 1981-07-15 | 1981-07-15 | Optical transmission method between packages |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5915422B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4703471A (en) * | 1985-01-02 | 1987-10-27 | General Electric Company | Monolithically integrated electro-optical multiplexer/demultiplexer |
| JP2991346B2 (en) * | 1990-11-02 | 1999-12-20 | 株式会社日立製作所 | Optical connector |
| GB2271682B (en) * | 1992-10-13 | 1997-03-26 | Marconi Gec Ltd | Improvements in or relating to connectors |
| CN101645750B (en) * | 2009-09-02 | 2013-09-11 | 中兴通讯股份有限公司 | Distributed electrical cross device and system and method thereof for realizing SNC cascade protection |
-
1981
- 1981-07-15 JP JP56111318A patent/JPS5915422B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5812450A (en) | 1983-01-24 |
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