JPS6157609B2 - - Google Patents
Info
- Publication number
- JPS6157609B2 JPS6157609B2 JP56032557A JP3255781A JPS6157609B2 JP S6157609 B2 JPS6157609 B2 JP S6157609B2 JP 56032557 A JP56032557 A JP 56032557A JP 3255781 A JP3255781 A JP 3255781A JP S6157609 B2 JPS6157609 B2 JP S6157609B2
- Authority
- JP
- Japan
- Prior art keywords
- cable
- optical
- pressure
- anchor
- tail
- 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
- 239000013307 optical fiber Substances 0.000 claims description 26
- 230000003287 optical effect Effects 0.000 claims description 23
- 230000008878 coupling Effects 0.000 claims description 15
- 238000010168 coupling process Methods 0.000 claims description 15
- 238000005859 coupling reaction Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000013535 sea water Substances 0.000 claims 1
- 239000012212 insulator Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 238000005219 brazing Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/444—Systems or boxes with surplus lengths
- G02B6/4441—Boxes
- G02B6/4448—Electro-optic
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
- Cable Accessories (AREA)
Description
【発明の詳細な説明】
本発明は、光海底ケーブルと光海底中継器きよ
う体との光学的,電気的接続部を収容する耐水圧
気密空間をもつ光海底中継器のケーブル引留め部
の構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a cable retaining portion of an optical submarine repeater having a water-tight airtight space for accommodating an optical and electrical connection between an optical submarine cable and an optical submarine repeater enclosure. It's about structure.
従来の同軸海底ケーブルシステムと同様に光海
底ケーブルシステムにおいても別々に製造と試験
を受けた光海底中継器を収容した中継器きよう体
と光海底ケーブルとが、布設船上で電気的、機械
的かつ光学的に接続された後に布設される。従つ
て、この接続構造は、光フアイバ相互の接続部お
よびその接続作業に必要な光フアイバ余長を収容
でき、8000mの海底における高水圧から光フアイ
バを保護でき、かつ作業場所が船上という環境を
考慮すると、作業性の良い構造でなければならな
い。これまでの光海底ケーブルシステムにおける
接続は、光海底中継器きよう体の端面板にとりつ
けられたフイードスルおよび光海底ケーブル端末
にとりつけられたケーブルカツプリングから各々
導出され絶縁体細径耐圧管内に入つたテールケー
ブルと呼ばれる光フアイバ相互を光学的に接続
し、この後、テールケーブルの細径耐圧管相互を
機械的に接続し、外側に絶縁被覆を施すT―T
(Tail to Tail)接続法と呼ばれる方法により行
なわれる(例えば、特願昭54―166921号(特開昭
56―89708号公報参照)。しかし、この方法ではテ
ールケーブルが細径である事から、光フアイバ相
互の接続部の補強が十分に行なえず、また、テー
ルケーブルに複数本の光フアイバが入つている場
合には、光学的に接続した後のそれぞれの光フア
イバ長が相互に等しくないため、細径耐圧管内に
長さの異なる光フアイバを収容することが難しい
恐れがある。この為、T―T接続部にテールケー
ブルより大きな径の曲り管を用い、光フアイバが
この太径曲り管内を通る行程差を利用して長さの
異なる複数本の光フアイバを収容したり(特願昭
55―113023号(特開昭57―37317号公報参照)、あ
るいはジヨイントチヤンバと呼ばれる耐水圧構造
を有する接続箱を中継器きよう体のフイードスル
とケーブルカツプリング間に配置し、光フアイバ
相互の接続部および接続余長をジヨイントチヤン
バ内に収容し高水圧より保護するという手段を講
じる事が考えられている。 Similar to the conventional coaxial submarine cable system, in the optical submarine cable system, the repeater casing housing the optical submarine repeater and the optical submarine cable, which have been manufactured and tested separately, are electrically and mechanically connected on the installation ship. The cables are installed after being optically connected. Therefore, this connection structure can accommodate the interconnection of optical fibers and the extra length of optical fiber necessary for the connection work, protect the optical fibers from high water pressure on the seabed at 8000 m, and work in a shipboard environment. Considering this, it must have a structure that is easy to work with. The connections in conventional optical submarine cable systems are derived from the feedthrough attached to the end plate of the optical submarine repeater case and the cable coupling attached to the optical submarine cable terminal, and are inserted into the insulator small-diameter pressure-resistant tube. Optical fibers called vine tail cables are optically connected to each other, and then the small diameter pressure-resistant tubes of the tail cables are mechanically connected to each other, and an insulating coating is applied to the outside of the T-T.
This is done by a method called the Tail to Tail connection method (for example, Japanese Patent Application No. 166921/1986
(Refer to Publication No. 56-89708). However, since the tail cable has a small diameter with this method, it is not possible to sufficiently reinforce the joints between the optical fibers, and if the tail cable contains multiple optical fibers, the optical Since the lengths of the optical fibers after being connected are not equal to each other, it may be difficult to accommodate optical fibers of different lengths within the small-diameter pressure-resistant tube. For this reason, a curved tube with a diameter larger than that of the tail cable is used at the T-T connection part, and multiple optical fibers of different lengths can be accommodated by utilizing the difference in the distance that the optical fiber passes through the large diameter curved tube ( special request
No. 55-113023 (refer to Japanese Patent Application Laid-open No. 57-37317), or a junction chamber with a water pressure resistant structure is placed between the feedthrough of the repeater body and the cable coupling, and the optical fibers are connected to each other. It has been considered to protect the connection part and the excess connection length within a joint chamber to protect it from high water pressure.
しかし、これらいずれの構成も、いくつかの欠
点を有している。例えば、太径曲り管を用いたT
―T接続法では接続部の補強および収容構造の他
に、水密構造及び絶縁構造に問題が残る。また、
ジヨイントチヤンバ方式では、中継器きよう体の
剛直部の長さがほぼジヨイントチヤンバの長さだ
け長くなるので、きよう体とカツプリングとを機
械的に接続する継手がジンバル構造を有する場
合、中継器きよう体の両端に位置するジンバルピ
ン間距離が必然的に長くなつてしまう。また、ジ
ンバル間距離が長くなるとドラム型布設機への適
合の条件から中継器きよう体外径は大きくできな
くなり、きよう体設計上の自由度を失うことにな
る。 However, both of these configurations have some drawbacks. For example, T
- In the T-connection method, problems remain in the watertight structure and insulation structure in addition to the reinforcement and housing structure of the connection part. Also,
In the joint chamber method, the length of the rigid part of the repeater enclosure is approximately equal to the length of the joint chamber, so if the joint that mechanically connects the enclosure and the coupling has a gimbal structure, The distance between the gimbal pins located at both ends of the repeater body inevitably becomes longer. Furthermore, if the distance between the gimbals becomes long, the outer diameter of the repeater shell cannot be made large due to the requirements for compatibility with a drum-type laying machine, and the degree of freedom in the structure design is lost.
本発明は上述の如き従来技術の問題点を解決す
るために、ケーブルカツプリングの内部にジヨイ
ントチヤンバを設けたことを特徴とする光海底中
継器のケーブル引留め部の構造を提供するもので
ある。 In order to solve the problems of the prior art as described above, the present invention provides a structure of a cable retaining part of an optical submarine repeater, which is characterized in that a joint chamber is provided inside the cable coupling. be.
本発明によれば、光フアイバ相互の接続部およ
び接続余長を十分な空間的余裕をもつて収容でき
かつ、ジヨイントチヤンバがケーブルカツプリン
グの内部に設けられる為に、中継器きよう体のジ
ンバルピン間距離には全く影響を与えないか、も
しくは短縮できるという利点を有する。 According to the present invention, the mutual connection portions and connection lengths of optical fibers can be accommodated with sufficient space, and since the joint chamber is provided inside the cable coupling, the repeater enclosure can be accommodated with sufficient space. This has the advantage that the distance between gimbal pins is not affected at all or can be shortened.
以下図面を用いて本発明を従来例と対比して詳
細に説明する。 Hereinafter, the present invention will be explained in detail in comparison with a conventional example using the drawings.
図1は、従来の光海底中継器のきよう体の構成
例を示すもので、101は中継器の耐圧円筒、1
02は中継器回路、103,103aは各々アツ
センブリケーブルと呼ばれる光フアイバと給電
線、104はフイードスル、105は端面板、1
06はケーブルカツプリング、107はテールケ
ーブル、108は光海底ケーブル、109はジン
バル継手、110はジンバルピン、111はケー
ブル引留め部である。 FIG. 1 shows an example of the structure of a conventional optical submarine repeater body, in which 101 is a pressure-resistant cylinder of the repeater;
02 is a repeater circuit, 103 and 103a are optical fibers and feeder lines called assembly cables, 104 is a feedthrough, 105 is an end plate, 1
06 is a cable coupling, 107 is a tail cable, 108 is an optical submarine cable, 109 is a gimbal joint, 110 is a gimbal pin, and 111 is a cable retaining portion.
このような従来の構造では、テールケーブル1
07相互を端面板105とジンバル継手109の
間で接続する事により耐圧円筒101内の中継器
回路102とケーブルカツプリング106との接
続を行うか、あるいは、端面板105とジンバル
継手109間に新たにジヨイントチヤンバをもう
け、その中に光フアイバの接続部を収容し高水圧
より保護していた。 In such a conventional structure, the tail cable 1
07 Connect the repeater circuit 102 inside the pressure cylinder 101 and the cable coupling 106 by connecting them between the end plate 105 and the gimbal joint 109, or connect a new one between the end plate 105 and the gimbal joint 109. A joint chamber was installed in the chamber to house the optical fiber connections and protect them from high water pressure.
本発明の特徴は、前述した従来技術の欠点を解
決するため、ケーブルカツプリング内のケーブル
引留め部に光フアイバの接続部および接続余長を
収容するジヨイントチヤンバを設けたことであ
る。 A feature of the present invention is that, in order to solve the above-mentioned drawbacks of the prior art, a joint chamber for accommodating the optical fiber connection part and the connection extra length is provided in the cable retaining part in the cable coupling.
図2は、本発明の構造の主要部を詳細に示すた
めの図で、1はアンカハウジング、2は絶縁体、
3は円筒状のアンカ、4はケーブル孔張力線5を
アンカ3に押し付けて引留めるためのコーン、
6,7はコーン4を押しこむためのプレートおよ
びボルト、8はプレート6に取り付けられて光フ
アイバの接続部10を保持固定する為のケージ、
9は図では4本の光フアイバからなる光フアイバ
ユニツト、11はアンカ3にボルト12で締付け
られジヨイントチヤンバ17を構成する蓋、13
はテールケーブル15の耐圧管、14はテールケ
ーブルの絶縁体18とケーブルカツプリングの絶
縁体2とを連続的に絶縁するモールド部、16は
光海底ケーブル、19はOリング、20は蓋11
とテールケーブルの耐圧管13とを気密固着する
ろう付け部、21は絶縁体モールド部、22はジ
ンバル継手(図示せず)の延長部である。 FIG. 2 is a diagram showing in detail the main parts of the structure of the present invention, in which 1 is an anchor housing, 2 is an insulator,
3 is a cylindrical anchor; 4 is a cone for pressing and holding the cable hole tension line 5 against the anchor 3;
6 and 7 are plates and bolts for pushing the cone 4; 8 is a cage attached to the plate 6 for holding and fixing the optical fiber connection part 10;
In the figure, 9 is an optical fiber unit consisting of four optical fibers, 11 is a lid that is tightened to the anchor 3 with bolts 12 and constitutes a joint chamber 17;
14 is a mold part that continuously insulates the tail cable insulator 18 and the cable coupling insulator 2, 16 is an optical submarine cable, 19 is an O-ring, and 20 is a lid 11.
21 is an insulator molded portion, and 22 is an extension of a gimbal joint (not shown).
次に本発明の構造の組立を図3を補強に用いて
説明する。アンカハウジング1の部分は予め絶縁
体モールド部21を除き絶縁体2がモールドされ
たアンカ3の一端側に、ケーブルの抗張力線5が
コーン4、プレート6及びボルト7により引留め
られ、耐圧層とともに光フアイバがアンカ3内に
導入され、ケーブルの絶縁体とアンカ3の周囲の
絶縁体2とが連続的にモールドされ、絶縁され、
図3aに示す形で布設船上に搬入される。すなわ
ち、ここまでは、予め工場で製造することが可能
である。一方、きよう体側から導出されたテール
ケーブル15も予めテールケーブルの耐圧管13
とジヨイントチヤンバ17の蓋11とがろう付け
部20により気密固着され、かつ、外側を絶縁体
により被覆され図3bの様になつている。このテ
ールケーブル15内を通つてきた光フアイバとケ
ーブル側の光フアイバが耐水圧空間となるジヨイ
ントチヤンバ17内の接続部10で接続され、ケ
ージ8に固定される(図3c)。次に、蓋11は
ボルト12によりアンカ3に固定され、その後絶
縁体モールド部21のモールドを行い、予めテー
ルケーブル15を通しておいたジンバル継手の延
長部22を移動し(図3c)、アンカハウジング
1に固定する事により、本構造のケーブルカツプ
リングの組立ては終了する。なお、テルケーブル
15の耐圧管13と蓋11とのろう付け部20、
およびこの外周部の絶縁体モールド補修を船上組
立立時に行い、その後前記の方法でカツプリング
を組立ててもよい。 Next, the assembly of the structure of the present invention will be explained using FIG. 3 for reinforcement. In the part of the anchor housing 1, the tensile strength wire 5 of the cable is held by the cone 4, the plate 6, and the bolt 7 to one end side of the anchor 3 on which the insulator 2 is molded, excluding the insulator molded part 21, and together with the pressure-resistant layer. The optical fiber is introduced into the anchor 3, the insulation of the cable and the insulation 2 around the anchor 3 are continuously molded and insulated,
It is carried onto the laying ship in the form shown in Figure 3a. That is, up to this point, it is possible to manufacture in advance at a factory. On the other hand, the tail cable 15 led out from the body side is also connected to the pressure tube 13 of the tail cable in advance.
The lid 11 of the joint chamber 17 is hermetically fixed by the brazing part 20, and the outside is covered with an insulator, as shown in FIG. 3b. The optical fiber passing through the tail cable 15 and the optical fiber on the cable side are connected at a connecting part 10 in the joint chamber 17, which is a water pressure resistant space, and are fixed to the cage 8 (FIG. 3c). Next, the lid 11 is fixed to the anchor 3 with bolts 12, after which the insulator mold part 21 is molded, the extension part 22 of the gimbal joint through which the tail cable 15 has been passed in advance is moved (FIG. 3c), and the anchor housing 1 is moved. The assembly of the cable coupling of this structure is completed by fixing it to . In addition, the brazed portion 20 between the pressure tube 13 and the lid 11 of the Tel cable 15,
The insulator mold on the outer periphery may be repaired at the time of assembly on board, and the coupling may then be assembled using the method described above.
以上説明したように、本発明によれば、ケーブ
ルカツプリング内に光フアイバ相互の接続部およ
び接続余長を収容できるジヨイントチヤンバをも
うける事により、十分な空間的余裕をもつて接続
作業および補強を行う事ができ、かつジンバル間
距離が短くでき、きよう体設計上の自由度を持た
せる事ができる光海底ケーブルカツプリングを実
現することができる。 As explained above, according to the present invention, by providing a joint chamber in the cable coupling that can accommodate the connection portions between optical fibers and the extra connection length, connection work and reinforcement can be carried out with sufficient space. It is possible to realize an optical submarine cable coupling that can perform the following operations, shorten the distance between gimbals, and provide flexibility in designing the shell.
図1は従来の光海底中継器のケーブル引留め部
の構造例を示す一部断面を含む側面図、図2及び
図3は本発明の実施例の主要部を示す一部断面を
含む側面図である。
101…耐圧円筒、102…中継器回路、10
3,103a…アツセンブリケーブル、104…
フイードスル、105…端面板、106…ケーブ
ルカツプリング、107…テールケーブル、10
8…光海底ケーブル、109…ジンバル継手、1
10…ジンバルピン、111…ケーブル引留め
部、1…アンカハウジング、2…絶縁体、3…ア
ンカ、4…コーン、5…ケーブル抗張力線、6…
プレート、7…ボルト、8…ケージ、9…光フア
イバユニツト、10…接続部、11…蓋、12…
ボルト、13…耐圧管、14…モールド部、15
…テールケーブル、16…海底ケーブル、17…
ジヨイントチヤンバ、18…絶縁体、19…Oリ
ング、20…ろう付け部、21…絶縁体モールド
部、22…ジンバル継手の延長部。
FIG. 1 is a side view with a partial cross section showing an example of the structure of a cable retaining part of a conventional optical submarine repeater, and FIGS. 2 and 3 are side views with a partial cross section showing main parts of an embodiment of the present invention. It is. 101...Pressure cylinder, 102...Relay circuit, 10
3,103a...assembly cable, 104...
Feedsle, 105... End plate, 106... Cable coupling, 107... Tail cable, 10
8... Optical submarine cable, 109... Gimbal joint, 1
DESCRIPTION OF SYMBOLS 10... Gimbal pin, 111... Cable retainer, 1... Anchor housing, 2... Insulator, 3... Anchor, 4... Cone, 5... Cable tensile strength wire, 6...
Plate, 7... Bolt, 8... Cage, 9... Optical fiber unit, 10... Connection section, 11... Lid, 12...
Bolt, 13...Pressure tube, 14...Mold part, 15
...Tail cable, 16...Submarine cable, 17...
joint chamber, 18... insulator, 19... O-ring, 20... brazing part, 21... insulator mold part, 22... extension part of gimbal joint.
Claims (1)
ーブルカツプリング内のケーブル引留め部に、円
筒形状を有しその一方の端面側は前記光海底ケー
ブルの抗張力線を引留めるとともに耐圧層が貫通
して該耐圧層内の光フアイバが導入されるように
構成され他方の端面側は前記光海底中継器のきよ
う体からのテールケーブルに気密固定された円板
が蓋体として気密固定されるように構成されて両
端面間に耐水圧空間が形成され該耐水圧空間内に
前記光海底ケーブルの光フアイバと前記テールケ
ーブルの光フアイバとの接続部及び接続余長が収
容される構造のアンカと、該アンカを海水より絶
縁して内部に収容するための円筒体のアンカハウ
ジングとを備えた光海底中継器のケーブル引留め
部の構造。1. The cable retaining part in the cable coupling of the optical submarine repeater that retains the optical submarine cable has a cylindrical shape, and one end surface thereof retains the tensile strength wire of the optical submarine cable and has a pressure-resistant layer penetrated. The optical fiber in the pressure-resistant layer is introduced into the pressure layer, and the other end side is hermetically fixed to the tail cable from the enclosure of the optical submarine repeater, and a disc is hermetically fixed as a lid. An anchor having a structure in which a water pressure resistant space is formed between both end faces, and a connecting portion and a connecting excess length between the optical fiber of the optical submarine cable and the optical fiber of the tail cable are accommodated in the water pressure resistant space. and a cylindrical anchor housing for accommodating the anchor inside while insulating it from seawater.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56032557A JPS57147602A (en) | 1981-03-09 | 1981-03-09 | Structure for cable anchor part of optical submarine repeater |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56032557A JPS57147602A (en) | 1981-03-09 | 1981-03-09 | Structure for cable anchor part of optical submarine repeater |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57147602A JPS57147602A (en) | 1982-09-11 |
JPS6157609B2 true JPS6157609B2 (en) | 1986-12-08 |
Family
ID=12362206
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56032557A Granted JPS57147602A (en) | 1981-03-09 | 1981-03-09 | Structure for cable anchor part of optical submarine repeater |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57147602A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08596U (en) * | 1995-07-20 | 1996-04-02 | 株式会社光電製作所 | Loop antenna device |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59193402A (en) * | 1983-04-19 | 1984-11-02 | Nippon Telegr & Teleph Corp <Ntt> | Submarine optical cable anchor device |
AU665822B2 (en) * | 1993-05-06 | 1996-01-18 | Toyo Seikan Kaisha Ltd. | Liquid foam-discharging, squeezable vessel |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57133417A (en) * | 1981-02-12 | 1982-08-18 | Nippon Telegr & Teleph Corp <Ntt> | Connection structure between submarine optical cable and submarine optical repeater |
-
1981
- 1981-03-09 JP JP56032557A patent/JPS57147602A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57133417A (en) * | 1981-02-12 | 1982-08-18 | Nippon Telegr & Teleph Corp <Ntt> | Connection structure between submarine optical cable and submarine optical repeater |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08596U (en) * | 1995-07-20 | 1996-04-02 | 株式会社光電製作所 | Loop antenna device |
Also Published As
Publication number | Publication date |
---|---|
JPS57147602A (en) | 1982-09-11 |
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