JPH02118342U - - Google Patents
Info
- Publication number
- JPH02118342U JPH02118342U JP1989028222U JP2822289U JPH02118342U JP H02118342 U JPH02118342 U JP H02118342U JP 1989028222 U JP1989028222 U JP 1989028222U JP 2822289 U JP2822289 U JP 2822289U JP H02118342 U JPH02118342 U JP H02118342U
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- branch
- station
- optical adapter
- communication signal
- 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
- 230000003287 optical effect Effects 0.000 claims description 12
- 239000013307 optical fiber Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Small-Scale Networks (AREA)
- Optical Communication System (AREA)
Description
第１図は本考案の一実施例の構成を示した図、
第２図および第３図は第１図の光アダプタの使用
例を示した図、第４図は本考案の他の実施例を示
した図、第５図は従来における光アダプタの使用
例を示した図である。
１…幹線、２…ステーシヨン、３…支線、４…
分岐器、１０…光アダプタ、１１…光アダプタ回
路、１２…分岐回路、１３，１４１，１４２…端
子、１５…セレクタ。
FIG. 1 is a diagram showing the configuration of an embodiment of the present invention.
Figures 2 and 3 are diagrams showing an example of how the optical adapter shown in Figure 1 is used, Figure 4 is a diagram showing another embodiment of the present invention, and Figure 5 is a diagram showing an example of how the conventional optical adapter is used. FIG. 1... Main line, 2... Station, 3... Branch line, 4...
Branch, 10... Optical adapter, 11... Optical adapter circuit, 12... Branch circuit, 13, 14 1 , 14 2 ... Terminal, 15... Selector.
Claims (1)
、このステーシヨンを前記幹線に接続する支線と
、この支線を幹線に接続する際に接続部分のイン
ピーダンスの整合をとる分岐器と、前記ステーシ
ヨンと同様に支線と分岐器を介して幹線に接続さ
れ通信信号を復調する機能を有する光アダプタと
、光アダプタどうしを接続する光フアイバとを有
する通信システムにおいて、 光フアイバによつて互いに接続され、通信信号
を復調する光アダプタ回路部と、 支線を介して前記分岐器と接続され、ステーシ
ヨンの送受信信号と同レベルの信号が送受信可能
な第１の端子と、 支線を介して前記ステーシヨンが直接接続され
、ステーシヨンの送受信信号と同レベルの信号が
送受信可能な第２の端子と、 前記第２の端子を経由して送られる通信信号を
前記第１の端子を経由して送られる通信信号より
も多く減衰させて前記光アダプタ回路部との間で
授受する分岐回路、 を具備したことを特徴とする光アダプタ。 (2) 前記支線を前記第１の端子または第２の端
子に選択的に接続するセレクタを具備したことを
特徴とする請求項１の光アダプタ。[Claims for Utility Model Registration] (1) A main line, a station with a communication function, a branch line that connects this station to the main line, and a branch that matches the impedance of the connected part when connecting this branch line to the main line. In a communication system that includes an optical adapter, an optical adapter that is connected to the main line via a branch line and a branch like the station and has a function of demodulating communication signals, and an optical fiber that connects the optical adapters to each other. an optical adapter circuit section that is connected to each other and demodulates the communication signal; a first terminal that is connected to the branch via a branch line and is capable of transmitting and receiving signals of the same level as the station's transmitting and receiving signals; a second terminal to which the station is directly connected and capable of transmitting and receiving signals of the same level as the station's transmitting and receiving signals; and a second terminal to which a communication signal sent via the second terminal is transmitted via the first terminal. An optical adapter comprising: a branch circuit that transmits and receives a communication signal to and from the optical adapter circuit section while attenuating the communication signal more than a communication signal transmitted to the optical adapter circuit section. (2) The optical adapter according to claim 1, further comprising a selector for selectively connecting the branch line to the first terminal or the second terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989028222U JPH079467Y2 (en) | 1989-03-13 | 1989-03-13 | Optical adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989028222U JPH079467Y2 (en) | 1989-03-13 | 1989-03-13 | Optical adapter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02118342U true JPH02118342U (en) | 1990-09-21 |
| JPH079467Y2 JPH079467Y2 (en) | 1995-03-06 |
Family
ID=31251408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989028222U Expired - Lifetime JPH079467Y2 (en) | 1989-03-13 | 1989-03-13 | Optical adapter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH079467Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10309727A (en) * | 1997-05-13 | 1998-11-24 | M R C Du Pont Kk | Woody molded article, its manufacture, and composition for molded article |
-
1989
- 1989-03-13 JP JP1989028222U patent/JPH079467Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH079467Y2 (en) | 1995-03-06 |
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