JPH0243833A - Optical submarine repeating system - Google Patents
Optical submarine repeating systemInfo
- Publication number
- JPH0243833A JPH0243833A JP63193947A JP19394788A JPH0243833A JP H0243833 A JPH0243833 A JP H0243833A JP 63193947 A JP63193947 A JP 63193947A JP 19394788 A JP19394788 A JP 19394788A JP H0243833 A JPH0243833 A JP H0243833A
- Authority
- JP
- Japan
- Prior art keywords
- optical submarine
- conductor
- current
- repeater
- optical
- 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
- 230000003287 optical effect Effects 0.000 title claims abstract description 47
- 239000004020 conductor Substances 0.000 claims description 29
- 238000011156 evaluation Methods 0.000 abstract description 5
- 238000012544 monitoring process Methods 0.000 abstract description 5
- 230000003213 activating effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
Landscapes
- Monitoring And Testing Of Transmission In General (AREA)
- Optical Communication System (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は光海底ケーブルと光海底中継器とより構成され
る光海底中継システムに関し、特に光海底ケーブルが開
放障害を生じた時でも障害点評定を行なえるようにした
光海底中継システムに関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an optical submarine repeater system composed of an optical submarine cable and an optical submarine repeater, and in particular, even when an optical submarine cable has an open failure, the failure point can be avoided. This article concerns an optical submarine relay system that enables evaluation.
光海底中継システムにおいては、海底下に布設した中継
器あるいはケーブルに障害が生じた場合、その障害点を
評定するために、中継器内に端局から制御可能な監視機
能を有している。従って、給電が可能な状況にあれば、
障害点評定が可能である。例えば、ケーブル切断障害が
生じても、切断点で給電線が海水中に露出していれば、
大地帰路を通して給電可能であり、監視機能全制御でき
る。In optical submarine relay systems, when a failure occurs in a repeater or cable installed under the seabed, the repeater has a monitoring function that can be controlled from the terminal station in order to assess the point of failure. Therefore, if power supply is possible,
It is possible to evaluate failure points. For example, even if a cable cut failure occurs, if the power line is exposed in seawater at the cut point,
Power can be supplied through the earth return path, and all monitoring functions can be controlled.
しかしながら、ケーブル切断時、給電線が海水中に接地
されず、オープン状態になると給電不可能であり、監視
機能が動作せず、障害点評定ができないという問題があ
る。However, when the cable is cut, if the power supply line is not grounded in seawater and becomes open, there is a problem that power cannot be supplied, the monitoring function does not operate, and failure point evaluation cannot be performed.
このような問題点を解決するため、本発明の光海底中継
システムは、通常時、給電に使用する第１の導体と別に
第２．第３の導体を有する光海底ケーブルと、前記第３
の導体に流れる電流によって駆動され、かつ前記第１の
導体と第２の導体間を接続する接点を有するリレー回路
と、カンードが前記＠２の導体に接続されたダイオード
及び該ダ・イオードのアノードと前記第３の導体間に接
続された抵抗とを有する光海底中継器とから構成したも
のである。In order to solve such problems, the optical submarine relay system of the present invention has a second conductor separate from the first conductor that is normally used for power supply. an optical submarine cable having a third conductor;
a relay circuit driven by a current flowing through the conductor and having a contact connecting between the first conductor and the second conductor, a diode whose cand is connected to the conductor @2, and an anode of the diode. and a resistor connected between the third conductors.
したがって、本発明においては、光海底ケーブルが開放
障害音生じた時でも、障害点直前までの光海底中継器へ
の給電が可能となり、監視機能を動作させることができ
る。Therefore, in the present invention, even when an open failure sound occurs in the optical submarine cable, power can be supplied to the optical submarine repeater up to just before the failure point, and the monitoring function can be operated.
次に、本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
図面は本発明の一実施例を示すブロック図であり、光海
底中継器２と光海底中継器３が光海底ケーブル１で接続
されている状態を示している。The drawing is a block diagram showing one embodiment of the present invention, and shows a state in which an optical submarine repeater 2 and an optical submarine repeater 3 are connected by an optical submarine cable 1.
通常、光海底中継システムにおいては、定電流給電全行
い、光海底中継器２，３内で、給電線５に直列接続され
たツェナーダイオード１２〜１５によって電圧変換し、
光中継器回路８〜１１に電圧全印加している。Normally, in an optical submarine relay system, constant current power is supplied, and the voltage is converted by Zener diodes 12 to 15 connected in series to the power supply line 5 in the optical submarine repeaters 2 and 3.
Full voltage is applied to the optical repeater circuits 8 to 11.
ここで、光海底ケーブル１内には、各党ファイバ４や給
電線５以外に、給電帰路線６とリレー駆動線７の２本の
導体を有している。Here, the optical submarine cable 1 has two conductors, a power supply return line 6 and a relay drive line 7, in addition to the respective fibers 4 and the power supply line 5.
また、各光海底中継器２．３内には、それぞれ光中継器
回路８．９及び１０．１１の他に、リレ回路１６．１７
とダイオード１８．１９と抵抗２０．２１を有している
。リレー回路１６．１７は、リレー駆動線７を流れる電
流ｉに応じて、給電線５と給電帰路線６を接続する接点
２２．２３をそれぞれ開閉する。ダイオード１８．１９
と抵抗２０．２１は、給電帰路線６とリレー駆動線７間
に直列に接続される。このとき、各ダイオード１８．１
９は、カンードが給′１！帰路線６に接続されている。In addition, in each optical submarine repeater 2.3, in addition to optical repeater circuits 8.9 and 10.11, relay circuits 16.17
, a diode 18.19, and a resistor 20.21. The relay circuits 16 and 17 open and close contacts 22 and 23 connecting the power supply line 5 and the power supply return line 6, respectively, depending on the current i flowing through the relay drive line 7. Diode 18.19
and resistors 20 and 21 are connected in series between the power supply return line 6 and the relay drive line 7. At this time, each diode 18.1
9 is Kando's pay '1! Connected to return line 6.
今、・０点で海底ドのケーブル１が切断され、開放状態
になったとすると、給電電流が流れないため、光海底中
継器２．３内に障害点評定機能金持っていたとしても動
作せず、障害点を評定ができない。Now, if the submarine cable 1 is cut at point 0 and becomes open, the power supply current will not flow, so even if the optical submarine repeater 2.3 has a fault point evaluation function, it will not operate. Therefore, it is not possible to evaluate the point of failure.
そこで、Ａ局からリレー駆動線７に電流を流す。Therefore, current is caused to flow from the A station to the relay drive line 7.
この′４流は各中継器内の抵抗とダイオードを通して流
れるが、光海底中継器２内では抵抗２０とダイオード１
８によって分流され、その一部が電流ｌとして光海底中
継器３内のリレー回路１７に流れる。すると、この電流
ｌがリレー回路１Ｔの最小感動電流値以上になれば、そ
の接点２３が閉じる。従って、給電線５と給電帰路線６
が接点２３全通して接続され、給電電流Ｉが流れるので
、光海底中継器２．３内の障害点評定機能を作動させる
ことができる。This '4 current flows through a resistor and a diode in each repeater, but in the optical submarine repeater 2, it flows through a resistor 20 and a diode 1.
8, and a part of it flows to the relay circuit 17 in the optical submarine repeater 3 as a current l. Then, when this current l exceeds the minimum current value of the relay circuit 1T, the contact 23 closes. Therefore, the feeder line 5 and the feeder return line 6
is connected through all the contacts 23, and the feeding current I flows, so that the fault point evaluation function in the optical submarine repeater 2.3 can be activated.
ここで、注意すべきことは、Ａ局から、光海底中継器３
までの各々の光海底中継器内のリレー回路１６．１７の
最小感動電流値を変え、Ａ局に近い光海底中継器内のリ
レー回路１６はど、最小感動電流値を大きくすることで
ある。それにより、障害点に最も近い光海底中継器３の
リレー回路１１を作動させることができる。What should be noted here is that from station A, optical submarine repeater 3
By changing the minimum current value of the relay circuits 16 and 17 in each optical submarine repeater up to the station A and increasing the minimum current value of the relay circuit 16 in the optical submarine repeater near the A station. Thereby, the relay circuit 11 of the optical submarine repeater 3 closest to the failure point can be activated.
以上説明したように、本発明の光海底中継システムは、
光海底ケーブル内に、通常時給電に使用する第１の導体
とは別に第２．第３の導体を設け、光海底中継器内には
、第３の導体に流れる電流によって駆動され、かつ第１
の導体と第２の導体間を接続する接点を有するリレー回
路と、カンードが第２の導体に接続されたダイオード及
び該ダイオードのアノードと第３の導体間に接続された
抵抗からなる回路を設けることにより、光海底ケーブル
が開放障害を生じた時でも、障害点直前までの光海底中
継器への給電を可能とし、障害点評定を可能とする効果
がある。As explained above, the optical submarine relay system of the present invention
In the optical submarine cable, in addition to the first conductor that is normally used for hourly power supply, there is a second conductor. A third conductor is provided, and within the optical submarine repeater, the third conductor is driven by the current flowing through the third conductor, and the first
a relay circuit having a contact connecting between the conductor and the second conductor, a diode whose cand is connected to the second conductor, and a resistor connected between the anode of the diode and the third conductor. As a result, even when an open failure occurs in the optical submarine cable, power can be supplied to the optical submarine repeater up to just before the failure point, and the failure point can be evaluated.
図面は本発明の一実施例を示すブロック図である。
１・・・・光海底ケーブル、２，３・・・・光海底中継
器、４・・・・光ファイバ ５・・・・給電線（第１の
導体）、６・・・・給電帰路線（第２の導体）、Ｉ・・
・・リレー駆動線（第３の導体）、８〜１１・・・・光
中継器回路、１２〜１５番・・・ツェナーダイオード、
１６，１７・・・・リレー回路、１８．１９・Φ・・ダ
イオード、２０．２１・・・・抵抗、２２．２３・・・
−接点。The drawing is a block diagram showing one embodiment of the present invention. 1... Optical submarine cable, 2, 3... Optical submarine repeater, 4... Optical fiber 5... Power supply line (first conductor), 6... Power supply return line (second conductor), I...
... Relay drive line (third conductor), 8-11... Optical repeater circuit, No. 12-15... Zener diode,
16,17...Relay circuit, 18.19...Diode, 20.21...Resistor, 22.23...
-Contact.
Claims (1)
第１の導体と別に第２、第３の導体を有する光海底ケー
ブルと、前記第３の導体に流れる電流によつて駆動され
、かつ前記第１の導体と第２の導体間を接続する接点を
有するリレー回路と、カソードが前記第２の導体に接続
されたダイオード及び該ダイオードのアノードと前記第
３の導体間に接続された抵抗とを有する光海底中継器と
から構成したことを特徴とする光海底中継システム。In an optical submarine relay system, an optical submarine cable has second and third conductors in addition to a first conductor used for power supply in normal times, and is driven by a current flowing through the third conductor, and the third conductor is driven by a current flowing through the third conductor. a relay circuit having a contact point connecting a first conductor and a second conductor; a diode having a cathode connected to the second conductor; and a resistor connected between the anode of the diode and the third conductor. What is claimed is: 1. An optical submarine repeater system comprising: an optical submarine repeater comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63193947A JPH0243833A (en) | 1988-08-03 | 1988-08-03 | Optical submarine repeating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63193947A JPH0243833A (en) | 1988-08-03 | 1988-08-03 | Optical submarine repeating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0243833A true JPH0243833A (en) | 1990-02-14 |
Family
ID=16316404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63193947A Pending JPH0243833A (en) | 1988-08-03 | 1988-08-03 | Optical submarine repeating system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0243833A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008013202A (en) * | 2006-07-05 | 2008-01-24 | Fuji Seal International Inc | Cap seal and stacked cap seals |
-
1988
- 1988-08-03 JP JP63193947A patent/JPH0243833A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008013202A (en) * | 2006-07-05 | 2008-01-24 | Fuji Seal International Inc | Cap seal and stacked cap seals |
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