WO2012051891A1 - 一种预制配线光缆及其制作方法 - Google Patents

一种预制配线光缆及其制作方法 Download PDF

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Publication number
WO2012051891A1
WO2012051891A1 PCT/CN2011/079790 CN2011079790W WO2012051891A1 WO 2012051891 A1 WO2012051891 A1 WO 2012051891A1 CN 2011079790 W CN2011079790 W CN 2011079790W WO 2012051891 A1 WO2012051891 A1 WO 2012051891A1
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Prior art keywords
cable
distribution
subunit
fibers
divergent
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PCT/CN2011/079790
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English (en)
French (fr)
Inventor
吴文新
王波
邓基昌
柳江敏
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to AU2011318087A priority Critical patent/AU2011318087B2/en
Priority to EP11833797.1A priority patent/EP2607937A4/en
Publication of WO2012051891A1 publication Critical patent/WO2012051891A1/zh
Priority to US13/608,810 priority patent/US20130004126A1/en

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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439Auxiliary devices
    • G02B6/4471Terminating devices ; Cable clamps
    • G02B6/4472Manifolds
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49826Assembling or joining

Definitions

  • the invention belongs to the technical field of optical fiber communication, and particularly relates to a prefabricated distribution optical cable and a manufacturing method thereof. Background technique
  • the fiber optic cable splitter box or the connector box is mainly used.
  • the optical cable is introduced into the box and fixed, and the distribution cable and the distribution cable that needs to be connected to the household optical cable are welded in the box, and the remaining optical fibers of the distribution cable continue to extend to the next divergence.
  • Point or access point Since the fiber optic cable splitter box or the joint box is large in size, it needs a specific position to be installed, and the optical cable needs to be welded in the process during the construction process. After the welding, the fiber fiber, the sealing process and the box body installation are required, and the maintenance and expansion are very good. It is inconvenient.
  • the prior art proposes a pre-connection wiring cable divergence scheme, in the process of prefabricating the diverging fiber in the factory, the wiring at the divergence point
  • the cable is covered with a loose tube to form a "cable cavity" similar to the micro connector box, and a part of the optical fiber in the cable subunit in the distribution cable is cut in the cavity, and the multi-core welding and protection operation is performed with the tail cable.
  • the straight-through distribution cable is required to continue to pass through, thereby completing the divergence and straight-through work in the cavity.
  • the pre-connected distribution cable divergence scheme of the prior art is the same optical cable when the partial optical fiber in the optical cable sub-unit in the distribution optical cable is cut and processed.
  • the other fibers in the unit continue to pass through and can easily damage the through fiber.
  • Embodiments of the present invention provide a prefabricated distribution cable and a manufacturing method thereof, which can avoid damage to a through fiber during a process of prefabricating a diverging fiber in a factory.
  • the embodiment of the invention adopts the following technical solutions:
  • a prefabricated distribution cable includes:
  • the distribution cable comprising at least one cable subunit, the number of fibers of the cable subunit being equal to the number of fibers requiring divergence each time;
  • a divergence protection unit configured to fix and seal the divergence points of the distribution cable and the divergent cable
  • a connector unit configured for the end of the divergent cable, the number of cores of the end is equal to the number of fibers in the divergent cable.
  • a manufacturing method of the above prefabricated wiring optical cable comprising:
  • the extracted cable subunits are terminated, and the number of cores at the ends is equal to the number of fibers in the divergent cable.
  • a prefabricated distribution cable includes:
  • the distribution cable comprising at least one cable subunit, the number of fibers of the cable subunit being equal to the number of fibers requiring divergence each time;
  • a divergence protection unit disposed along the length of the distribution cable, for fixing and sealing the divergence points of the distribution cable and the divergent cable;
  • a connector unit configured for the end of the divergent cable, the number of cores of the end is equal to the number of fibers in the divergent cable;
  • a branch cable is connected to the end of the branch cable for connecting to the drop cable.
  • a manufacturing method of the above prefabricated wiring optical cable comprising:
  • the terminated cable subunit is connected to the branch cable.
  • the prefabricated distribution cable is made by covering the optical cable subunit in the distribution cable, and the number of optical fibers of the covered optical cable subunit is equal to the number of optical fibers that need to be diverged each time.
  • the corresponding optical cable subunit can be directly separated, and the other optical cable subunits remain straight, so that the different optical cable subunits and the straight optical cable subunits are independent of each other in the distribution optical cable, thereby avoiding prefabrication in the factory. Damage to the through fiber during the diverging fiber process.
  • FIG. 1 is a schematic diagram of a divergent scheme of a prior art pre-connected distribution cable
  • FIG. 2 is a schematic structural view of a prefabricated distribution cable according to an embodiment of the present invention.
  • FIG. 3 is a structural diagram of a divergence protection unit according to an embodiment of the present invention.
  • FIG. 4 is a general structural diagram of a prefabricated distribution optical cable according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a branch optical cable according to an embodiment of the present invention
  • FIG. 6 is a schematic flow chart of a method for manufacturing a prefabricated distribution cable according to an embodiment of the present invention
  • FIG. 7 is an application scenario of a prefabricated distribution cable and a household optical cable according to an embodiment of the present invention.
  • an embodiment of the present invention provides a prefabricated distribution cable, including:
  • the distribution cable comprising at least one cable subunit, the number of fibers of the cable subunit being equal to the number of fibers requiring divergence each time;
  • a divergence protection unit configured to fix and seal the divergence points of the distribution cable and the divergent cable
  • the planned distribution cable needs to be diverged between the three user access points.
  • the number of fibers required to enter the home at the three access points is 4, 8, and 6 cores.
  • the process can produce a prefabricated distribution cable that encloses three (or more) fiber optic subunits, each of which has a number of fibers of four, eight, and six, respectively. Distributing the corresponding cable subunits at the planned divergence point while maintaining the straight-through of the other cable subunits in the distribution cable, and then using the divergent protection unit for fixing and sealing protection to the divergence point, and using the connector unit to halve The divergent cable is terminated.
  • the split cable subunits and the straight-through cable subunits are independent of each other in the distribution cable, thereby avoiding damage to the through fiber during the factory prefabrication of the diverging fibers.
  • the divergence protection unit has the characteristics of being bendable and compressive.
  • the divergence protection unit may include: a diverging unit, configured to be connected to the divergence point of the distribution cable and the divergent cable to fix the divergence point; and
  • the sealing unit may specifically be a heat shrinkable or cold shrinkable sleeve.
  • the connector unit for the end of the divergent cable may be a single or multi-pin plug having the same number of cores as the number of fibers in the divergent cable.
  • the prefabricated distribution cable of the embodiment of the present invention may further include a branch cable, and one end of the branch cable is prefabricated into a single core or a multi-core socket matched with the connector unit, so as to facilitate The cable subunits are connected, and the other end of the branch cable is prefabricated into a single core plug to facilitate connection with the home optical cable.
  • FIG. 6 is a schematic flow chart of a method for manufacturing a prefabricated distribution cable, and a method for manufacturing a prefabricated distribution cable according to an embodiment of the present invention includes:
  • the length of the distribution cables is distributed at a certain distance before each divergence point (the distance and each Related to the length of the cable subunit to be stripped), cutting the cable subunits that need to be diverged, and then circumscribing the distribution cable at the bifurcation point, stripping the distribution cable for an outer protective layer to extract the cut cable subunit, and The divergence point is fixed and sealed, and the extracted light is The cable unit is prefabricated.
  • a bifurcation unit is used at the bifurcation point to be connected to the bifurcation point for fixing the bifurcation point; and the sealing unit is coated on the divergent unit, and the sealing unit may It is a heat shrinkable or cold shrinkable sleeve for sealing protection of the branch points.
  • the drawn cable subunit is then pre-formed into a single or multi-core plug having the same number of cores as the number of fibers in the sub-unit of the cable.
  • optical cable subunits in the distribution cable are independent of each other, only the corresponding optical cable subunits are extracted when diverging, and the other optical cable subunits in the same distribution cable are not affected, thereby avoiding damage to other optical cables during factory prefabrication of the diverging optical fibers.
  • a through fiber in a subunit by using the dual protection of the distracting unit and the sealing unit at the divergence of the optical cable, it is possible to further avoid damage to other optical cable subunits during the prefabrication of the diverging optical fibers in the factory, and the diverging protection structure operates the cylinder.
  • the method for manufacturing the prefabricated distribution cable provided by the embodiment of the present invention may further include: connecting the end of the optical fiber subunit to the branch optical cable.
  • One end of the branch cable can be prefabricated into a single-core or multi-core socket matched with the end of the cable sub-unit to facilitate connection with the end of the cable sub-unit, and the other end of the branch cable is pre-formed into a single-core plug. To facilitate the connection with the home optical cable.
  • FIG. 7 is a practical application scenario of connecting the prefabricated distribution cable to the household optical cable.
  • the divergent optical cable can be conveniently connected to the household optical cable, thereby quickly completing the fiber entry;
  • the method for manufacturing the prefabricated distribution cable provided by the invention does not need to be welded in the process of prefabricating the diverging fiber in the factory, thereby reducing link attenuation, reducing cost, and facilitating later maintenance and expansion.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Description

一种预制配线光缆及其制作方法
技术领域
本发明属于光纤通讯技术领域, 特别涉及一种预制配线光缆及其制作方法。 背景技术
目前, 在实现配线光缆的直通和分歧时, 主要是使用光缆分纤盒或者接头 盒。 在用户接入点处, 将光缆引入盒中并进行固定, 在盒体内将配线光缆和需 要与入户光缆连接的配线光缆进行现场熔接, 配线光缆的其余光纤继续延伸至 下一个分歧点或接入点。 由于光缆分纤盒或者接头盒体积较大, 需要特定位置 才能安装, 且施工过程中需要对光缆进行现场熔接, 熔接后还需进行盘纤、 密 封处理和盒体安装等操作, 维护和扩容很是不便。
为减少使用光缆分纤盒或者接头盒带来的现场施工不便, 参见图 1 , 现有技 术提出了一种预连接配线光缆分歧方案, 在工厂预制分歧光纤过程中, 对分歧 点处的配线光缆包覆一个松套管, 构成一个类似于微型接头盒的 "光缆腔", 在 腔内把配线光缆内的光缆子单元中的部分光纤剪断, 与尾缆进行多芯熔接和保 护操作, 同时需要直通的配线光缆继续直通, 从而在腔内完成分歧和直通的功
6匕
3匕。
在实现本发明的过程中发明人发现, 现有技术的这种预连接配线光缆分歧 方案, 在对配线光缆内的光缆子单元中的部分光纤剪断处理并进行熔接操作时, 同一光缆子单元中的其他光纤继续直通, 很容易损坏直通光纤。
发明内容
本发明实施例提供一种预制配线光缆及其制作方法, 能够在工厂预制分歧 光纤过程中避免损坏直通光纤。 本发明实施例采用如下技术方案:
一种预制配线光缆, 包括:
配线光缆, 所述配线光缆包括至少一个光缆子单元, 所述光缆子单元的光 纤数量与每次需要分歧的光纤数量相等;
分歧光缆, 由所述配线光缆分出的一定长度的光缆子单元;
分歧保护单元, 用于对所述配线光缆和所述分歧光缆的分歧点进行固定和 密封保护;
连接器单元, 用于所述分歧光缆的成端, 所述成端的芯数与所述分歧光缆 内的光纤数量相等。
一种上述预制配线光缆的制作方法, 包括:
剪断需要分出的光缆子单元, 所述光缆子单元内的光纤数量与需要分歧的 光纤数量相等;
在分歧点剥开配线光缆一段外保护层抽出所述剪断的光缆子单元; 对所述分歧点进行固定和密封保护;
将所述抽出的光缆子单元成端, 所述成端的芯数与所述分歧光缆内的光纤 数量相等。
以及,
一种预制配线光缆, 包括:
配线光缆, 所述配线光缆包括至少一个光缆子单元, 所述光缆子单元的光 纤数量与每次需要分歧的光纤数量相等;
分歧光缆, 由所述配线光缆分出的一定长度的光缆子单元;
分歧保护单元, 沿所述配线光缆长度分布, 用于对所述配线光缆和所述分 歧光缆的分歧点进行固定和密封保护; 连接器单元, 用于所述分歧光缆的成端, 所述成端的芯数与所述分歧光缆 内的光纤数量相等; 以及
分支光缆, 与所述成端的分支光缆通相连, 用于连接入户光缆。
一种上述预制配线光缆的制作方法, 包括:
剪断需要分出的光缆子单元, 所述光缆子单元内的光纤数量与需要分歧的 光纤数量相等;
在分歧点剥开配线光缆一段外保护层抽出所述剪断的光缆子单元; 对所述分歧点进行固定和密封保护;
将所述抽出的光缆子单元成端, 所述成端的芯数与所述分歧光缆内的光纤 数量相等; 以及
将所述成端的光缆子单元与分支光缆相连。
由本发明实施例的上述技术方案可知, 由于预制配线光缆采用配线光缆内 包覆光缆子单元的方式制成, 且所包覆的光缆子单元的光纤数量与每次需要分 歧的光纤数量相等, 这样在工厂预制分歧光纤时可以直接分出对应的光缆子单 元, 其他光缆子单元保持直通, 从而分歧的光缆子单元与直通的光缆子单元在 配线光缆中彼此独立, 避免了在工厂预制分歧光纤过程中损坏到直通光纤。 附图说明
为了更清楚地说明本发明实施例的技术方案, 下面将对实施例描述中所需 要使用的附图作一筒单地介绍。
图 1为现有技术的预连接配线光缆的分歧方案示意图;
图 2为本发明实施例提供的预制配线光缆构成示意图;
图 3为本发明实施例的分歧保护单元的构成图;
图 4为本发明实施例预制配线光缆的总体结构图; 图 5为本发明实施例分支光缆的结构示意图;
图 6为本发明实施例提供的预制配线光缆制作方法的流程示意图; 图 7为本发明实施例预制配线光缆与入户光缆连接的应用场景。 具体实施方式
下面结合本发明实施例中的附图, 对本发明实施例中的技术方案进行清楚、 完整地描述。
参见图 2, 本发明实施例提供一种预制配线光缆, 包括:
配线光缆, 所述配线光缆包括至少一个光缆子单元, 所述光缆子单元的光 纤数量与每次需要分歧的光纤数量相等;
分歧光缆, 由所述配线光缆分出的一定长度的光缆子单元;
分歧保护单元, 用于对所述配线光缆和所述分歧光缆的分歧点进行固定和 密封保护;
连接器单元, 用于所述分歧光缆的成端。
例如, 规划布放的配线光缆需要在 3个用户接入点对光纤进行分歧, 3个接 入点上需要入户的光纤数量依次为 4芯、 8芯和 6芯, 为此在工厂加工过程可以 生成这样的一种预制配线光缆, 所述配线光缆内包覆 3个(或更多 ) 光缆子单 元, 每个光缆子单元内光纤数量分别为 4芯、 8芯和 6芯。 在规划的分歧点分出 对应的光缆子单元, 同时保持该配线光缆内其他光缆子单元的直通, 然后对所 述分歧点使用分歧保护单元进行固定和密封保护, 同时使用连接器单元对分出 的分歧光缆进行成端。 从而分歧的光缆子单元与直通的光缆子单元在配线光缆 中彼此独立, 避免了在工厂预制分歧光纤过程中损坏到直通光纤。
所述分歧保护单元具备可弯曲、 抗压的特性, 具体地, 参见图 3和图 4, 所 述分歧保护单元可以包括: 分歧单元, 用于环接在所述配线光缆和所述分歧光缆的分歧点, 对所述分 歧点进行固定; 和,
密封单元, 用于包覆在所述分歧单元上, 对所述分歧点进行密封保护。 该 密封单元具体可以为一热缩或者冷缩套管。
用于分歧光缆成端的所述连接器单元可以为单芯或多芯插头, 插头的芯数 与所述分歧光缆内的光纤数量相等。
参见图 5 , 本发明实施例的预制配线光缆还可以包括分支光缆, 所述分支光 缆一端预制成与所述连接器单元相匹配的单芯或多芯插座, 以方便与所述成端 的光缆子单元相连, 将分支光缆另一端预制成单芯插头, 以方便与入户光缆连 接。
图 6为上述预制配线光缆制作方法的流程示意图, 本发明实施例提供的一 种预制配线光缆的制作方法, 包括:
S11 , 剪断需要分出的光缆子单元, 所述光缆子单元内的光纤数量与需要分 歧的光纤数量相等;
S12, 在分歧点剥开配线光缆一段外保护层抽出所述剪断的光缆子单元;
513 , 对所述分歧点进行固定和密封保护;
514, 将所述抽出的光缆子单元成端。
在制作预制配线光缆之前, 需要预先确定光缆分歧点和每次需要分歧的光 纤数量。 在预制配线光缆制作时, 为方便剥开一定长度的光缆子单元, 根据实 际工程施工以前进行的工勘, 沿配线光缆长度分布在距离每个分歧点之前的一 定距离 (该距离与每次需要剥开的光缆子单元长度相关), 剪断需要分歧的光缆 子单元, 然后在分歧点环切配线光缆, 剥开配线光缆一段外保护层抽出所述剪 断的光缆子单元, 并对所述分歧点进行固定和密封保护, 以及将所述抽出的光 缆子单元预制成端。
具体地, 参见图 3和图 4, 在分歧点使用分歧单元环接在所述分歧点, 用于 对所述分歧点进行固定; 在所述分歧单元上包覆密封单元, 所述密封单元可以 为一热缩或者冷缩套管, 用于对所述分歧点进行密封保护。 然后将所述抽出的 光缆子单元预制成单芯或多芯插头, 插头的芯数与所述光缆子单元内的光纤数 量相等。
由于配线光缆中各光缆子单元彼此独立, 分歧时仅抽出对应的光缆子单元, 不会对同一配线光缆中其他光缆子单元产生影响, 从而避免了在工厂预制分歧 光纤过程中损坏其他光缆子单元内的直通光纤。 另外通过对光缆分歧处使用分 歧单元和密封单元的双重保护, 可以进一步避免在工厂预制分歧光纤过程中损 坏到其他光缆子单元, 并且这种分歧保护结构操作筒便。
进一步地, 本发明实施例提供的预制配线光缆的制作方法, 还可以包括: 将所述成端的光缆子单元与分支光缆相连。
可以将分支光缆一端预制成与所述成端的光缆子单元相匹配的单芯或多芯 插座, 以方便与所述成端的光缆子单元相连, 将分支光缆另一端预制成单芯插 头, 以方便与入户光缆连接。
参见图 7 , 图 7为预制配线光缆与入户光缆连接的实际应用场景, 在用户接 通过上述分支光缆, 分歧光缆可以很方便地与入户光缆连接, 从而快速完 成光纤入户; 并且由于本发明提供的预制配线光缆的制作方法, 在工厂预制分 歧光纤过程中无需进行熔接, 从而可以减少链路衰减, 降低成本, 方便后期维 护和扩容。
以上所述, 仅为本发明的具体实施方式, 但本发明的保护范围并不局限于 此, 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内, 可轻易想到 变化或替换, 都应涵盖在本发明的保护范围之内。 因此, 本发明的保护范围应 该以权利要求的保护范围为准。

Claims

权 利 要 求 书
1、 一种预制配线光缆, 其特征在于, 包括:
配线光缆, 所述配线光缆包括至少一个光缆子单元, 所述光缆子单元的光 纤数量与每次需要分歧的光纤数量相等;
分歧光缆, 由所述配线光缆分出的一定长度的光缆子单元;
分歧保护单元, 用于对所述配线光缆和所述分歧光缆的分歧点进行固定和 密封保护;
连接器单元, 用于所述分歧光缆的成端, 所述成端的芯数与所述分歧光缆 内的光纤数量相等。
2、 根据权利要求 1所述的预制配线光缆, 其特征在于, 所述分歧保护单元 包括:
分歧单元, 用于环接在所述配线光缆和所述分歧光缆的分歧点, 对所述分 歧点进行固定;
密封单元, 用于包覆在所述分歧单元上, 对所述分歧点进行密封保护。
3、 根据权利要求 1所述的预制配线光缆, 其特征在于, 所述连接器单元具 体为单芯或多芯插头, 所述插头的芯数与所述分歧光缆内的光纤数量相等。
4、 根据权利要求 1所述的预制配线光缆, 其特征在于, 还包括: 分支光缆, 所述分支光缆一端通过匹配的连接器单元与所述成端的分歧光 缆相连, 另一端预制成端用于连接入户光缆。
5、 一种预制配线光缆, 其特征在于, 包括:
配线光缆, 所述配线光缆包括至少一个光缆子单元, 所述光缆子单元的光 纤数量与每次需要分歧的光纤数量相等;
分歧光缆, 由所述配线光缆分出的一定长度的光缆子单元;
分歧保护单元, 沿所述配线光缆长度分布, 用于对所述配线光缆和所述分 歧光缆的分歧点进行固定和密封保护;
连接器单元, 用于所述分歧光缆的成端, 所述成端的芯数与所述分歧光缆 内的光纤数量相等; 以及
分支光缆, 与所述成端的分歧光缆相连, 用于连接入户光缆。
6、 一种预制配线光缆的制作方法, 其特征在于, 包括:
剪断需要分出的光缆子单元, 所述光缆子单元内的光纤数量与需要分歧的 光纤数量相等;
在分歧点剥开配线光缆一段外保护层抽出所述剪断的光缆子单元; 对所述分歧点进行固定和密封保护;
将所述抽出的光缆子单元成端, 所述成端的芯数与所述抽出的光缆子单元 内的光纤数量相等。
7、 根据权利要求 6所述的预制配线光缆的制作方法, 其特征在于, 所述对 所述分歧点进行固定和密封保护具体为:
使用分歧单元环接在所述分歧点, 用于对所述分歧点进行固定;
在所述分歧单元上包覆密封单元, 用于对所述分歧点进行密封保护。
8、 根据权利要求 6所述的预制配线光缆的制作方法, 其特征在于, 所述将 所述抽出的光缆子单元预制成端具体为:
将所述抽出的光缆子单元预制成单芯或多芯插头, 所述插头的芯数与所述 光缆子单元内的光纤数量相等。
9、根据权利要求 6所述的预制配线光缆的制作方法, 其特征在于, 还包括: 将分支光缆一端通过匹配的连接器单元与所述成端的光缆子单元相连, 另 一端预制成端用于连接入户光缆。
10、 一种预制配线光缆的制作方法, 其特征在于, 包括: 剪断需要分出的光缆子单元, 所述光缆子单元内的光纤数量与需要分歧的 光纤数量相等;
在分歧点剥开配线光缆一段外保护层抽出所述剪断的光缆子单元; 对所述分歧点进行固定和密封保护;
将所述抽出的光缆子单元成端, 所述成端的芯数与所述抽出的光缆子单元 内的光纤数量相等; 以及
将所述成端的光缆子单元与分支光缆相连。
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