CN105353480A - Optical fiber splitting box for multi-splitter configuration and optical fiber running method - Google Patents
Optical fiber splitting box for multi-splitter configuration and optical fiber running method Download PDFInfo
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- CN105353480A CN105353480A CN201510851995.7A CN201510851995A CN105353480A CN 105353480 A CN105353480 A CN 105353480A CN 201510851995 A CN201510851995 A CN 201510851995A CN 105353480 A CN105353480 A CN 105353480A
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- 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
- G02B6/4453—Cassettes
- G02B6/4454—Cassettes with splices
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- 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
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
- G02B6/3825—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres with an intermediate part, e.g. adapter, receptacle, linking two plugs
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- 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
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
- G02B6/4431—Protective covering with provision in the protective covering, e.g. weak line, for gaining access to one or more fibres, e.g. for branching or tapping
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- 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
- G02B6/4471—Terminating devices ; Cable clamps
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- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
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Abstract
本发明提供了一种多分路器配置的光纤分光箱，包括顶盖板、后板、底板、安装支架、侧盖板和前挡板；箱体底板中部的后侧可拆卸地安装一个1×2的第一级光分路器；箱体的后板的中部安装有两个1×n的第二级光分路器,所述n为所述出纤适配器的出纤总路数的一半。本发明还提供了一种多分路器配置的光纤分光箱的走纤方法，本发明不需要改造箱体，即可兼容提供1×n和1×2n两种比例的光分路功能。
The invention provides an optical fiber splitting box with multi-splitter configuration, which includes a top cover plate, a rear plate, a bottom plate, a mounting bracket, a side cover plate and a front baffle plate; a 1× 2 first-level optical splitters; two 1×n second-level optical splitters are installed in the middle of the rear panel of the box, and the n is half of the total number of fiber outlets of the fiber outlet adapter . The present invention also provides a fiber routing method for an optical fiber splitter box configured with multiple splitters. The present invention can provide compatible optical splitting functions of two ratios of 1×n and 1×2n without modifying the box body.
Description
技术领域 technical field
本发明涉及通信领域，更具体地说是涉及光通信传输网络中的光纤分光装置和实现方法。 The invention relates to the communication field, and more specifically relates to an optical fiber splitting device and a realization method in an optical communication transmission network.
背景技术 Background technique
在FTTH（光纤到户）网络中，局端设备和用户端设备之间通过无源的光缆和光分路/合路器连接来实现一点对多点的光纤链路分配，网络中任何需要进行光分路的节点处都需要设置光纤分光装置（箱）。现有的光纤分光箱基于单分光比设计，在箱体内部只能配置一个固定分光比的光分路器，其分光比固定，一般有1×16、1×32、1×64、1×144等几种分光比例的光纤分纤箱，不能根据后端光路的实际路数配置分光比例。比如，网络规模在初始阶段一般不大，用一个小的分光比（如1×32）即可满足用户需要。当网络用户增多后，原来的用户端光路可能不够了，原光纤分光箱不能满足要求，必须重新配置一个具有大分光光路的光纤分光箱（如1×64）。这样会造成设备成本增加和资源浪费，旧箱体在线路上的拆除和新箱体的安装调配亦会造成人力和时间成本的增加。 In FTTH (fiber-to-the-home) network, point-to-multipoint fiber link distribution is realized through passive optical cable and optical splitter/combiner connection between central office equipment and user end equipment. Fiber optic splitting devices (boxes) need to be installed at the nodes of the split. The existing optical fiber splitting box is based on a single splitting ratio design, and only one optical splitter with a fixed splitting ratio can be configured inside the box. The splitting ratio is fixed, generally 1×16, 1×32, 1×64, 1× 144 and other optical fiber distribution boxes with several splitting ratios cannot configure the splitting ratio according to the actual number of back-end optical paths. For example, the network scale is generally not large in the initial stage, and a small splitting ratio (such as 1×32) can meet user needs. When the number of network users increases, the original optical path of the user end may not be enough, and the original optical fiber splitter box cannot meet the requirements, and a fiber optical splitter box with a large splitter optical path (such as 1×64) must be reconfigured. This will result in an increase in equipment costs and a waste of resources, and the removal of the old cabinets on the line and the installation and deployment of the new cabinets will also increase the cost of manpower and time.
发明内容 Contents of the invention
本发明首先所要解决的技术问题是提供一种多分路器配置的光纤分光箱，能够不需要改造箱体，兼容提供1×n和1×2n两种比例的光分路功能。为此，本发明采用以下技术方案： The first technical problem to be solved by the present invention is to provide an optical fiber splitter box configured with multiple splitters, which can provide compatible optical splitting functions of two ratios of 1×n and 1×2n without modifying the box body. For this reason, the present invention adopts following technical scheme:
一种多分路器配置的光纤分光箱，其特征在于，所述光纤分光箱包括顶盖板、后板、底板、安装支架、侧盖板和前挡板； An optical fiber splitter box configured with multiple splitters, characterized in that the optical fiber splitter box includes a top cover plate, a rear plate, a bottom plate, a mounting bracket, a side cover plate and a front baffle;
所述光纤分光箱还设置有出纤适配器； The optical fiber splitting box is also provided with a fiber adapter;
所述箱体的底板在其第一侧的中间部位固定安装有一个1×1的第一级光纤适配器，用于连接入口光纤；在所述底板中部的后侧固定安装有第一固定结构，用于可拆卸地安装一个1×2的第一级光分路器，所述第一侧为入口光纤进入光纤分光箱的这一侧； A 1×1 first-level optical fiber adapter is fixedly installed on the middle part of the first side of the bottom plate of the box body for connecting the inlet optical fiber; a first fixing structure is fixedly installed on the rear side of the middle part of the bottom plate, It is used to detachably install a 1×2 first-level optical splitter, and the first side is the side where the inlet fiber enters the optical fiber splitter box;
所述箱体的顶盖板的中部的中间部位设置有一个第二固定结构，用于可拆式地安装两个2×2的第二级光纤适配器； The middle part of the middle part of the top cover of the box is provided with a second fixing structure for detachably installing two 2×2 second-level optical fiber adapters;
所述箱体的后板的中部安装有一个1×n的第二级光分路器,所述n为所述出纤适配器的出纤总路数的一半； A 1×n second-level optical splitter is installed in the middle of the rear panel of the box, and the n is half of the total number of fiber outlets of the fiber outlet adapter;
所述底板在其第二侧的后侧设置第一过纤部件，用于将自第二级光分路器的出纤导入到底板上以连接到出纤适配器，所述第二侧为箱体左侧和右侧中的其中一侧，所述第一侧为箱体左侧和右侧中的另一侧； The bottom plate is provided with a first fiber passing component on the rear side of its second side, which is used to guide the outgoing fiber from the second-level optical splitter into the bottom plate to connect to the fiber adapter, and the second side is a box One of the left side and the right side of the box body, the first side is the other side of the left side and the right side of the box body;
所述底板在出纤适配器和底板的后侧之间且在第一过纤部件到第一级光纤适配器之间的空间中设置第二过纤部件组，所述第二过纤部件组用于对第一过纤部件和出纤适配器之间的光纤整理光纤线圈； The bottom plate is provided with a second fiber passing component group between the fiber outlet adapter and the rear side of the bottom plate and in the space between the first fiber passing component and the first-level fiber optic adapter, and the second fiber passing component group is used for finishing the optical fiber coil between the first fiber passing component and the fiber outlet adapter;
所述后板在两个叠设的1×n的第二级光分路器的左右侧外分别设置第三过纤部件和第四过纤部件； The rear plate is respectively provided with a third fiber passing component and a fourth fiber passing component outside the left and right sides of the two stacked 1×n second-level optical splitters;
所述顶盖板在第二固定结构的左右侧分别设置第五过纤部件组和第六过纤部件组，所述第五过纤部件组用于对第一级光分路器和第二级光纤适配器之间的光纤整理线圈，所述第六过纤部件组用于对第二级光纤适配器和第二级光分路器之间的光纤整理线圈或对第一级光纤适配器和第二级光分路器之间的光纤整理线圈。 The top cover plate is provided with a fifth fiber passing component group and a sixth fiber passing component group respectively on the left and right sides of the second fixing structure, and the fifth fiber passing component group is used for connecting the first-level optical splitter and the second-level optical splitter The fiber finishing coil between the first-level fiber optic adapters, the sixth fiber-passing component group is used for the fiber finishing coil between the second-level fiber optic adapter and the second-level optical splitter or for the first-level fiber optic adapter and the second-level optical splitter Fiber finishing coils between level optical splitters.
进一步地，第一固定结构为第一卡槽，所述1×2的第一级光分路器可拆卸地安装在第一卡槽上。 Further, the first fixing structure is a first card slot, and the 1×2 first-level optical splitter is detachably mounted on the first card slot.
进一步地，所述后板的中部可拆式固定安装板，所述第二级光分路器固定在所述安装板中。 Further, the middle part of the rear panel is detachably fixed to the mounting plate, and the second-level optical splitter is fixed in the mounting plate.
进一步地，所述第二过纤部件组有沿着出纤适配器长度方向排列的多对过纤部件。 Further, the second fiber passing component group has multiple pairs of fiber passing components arranged along the length direction of the fiber outlet adapter.
进一步地，外部入纤从安装支架后面接入，安装支架后部内侧安装有裸纤保护套装置；实现分路后的输出盘纤由安装在底板前部的出纤适配器端口引出，经过出纤整理扣与后端的光纤链路相连。 Further, the external fiber input is connected from the back of the mounting bracket, and a bare fiber protective sleeve device is installed on the inside of the rear of the mounting bracket; the output disc fiber after splitting is led out from the fiber output adapter port installed on the front of the bottom plate, and passes through the fiber output The finishing buckle is connected with the optical fiber link at the rear end.
本发明的另一个所要解决的技术问题是提供一种多分路器配置的光纤分光箱的走纤方法。为此，本发明采用以下技术方案： Another technical problem to be solved by the present invention is to provide a fiber routing method for an optical fiber splitter box configured with multiple splitters. For this reason, the present invention adopts following technical scheme:
一种多分路器配置的光纤分光箱的走纤方法，其支持第一种走纤线路和第二种走纤线路，可以对上述的光纤分光箱任意选择其中一种走纤线路； A fiber routing method for an optical fiber splitter box configured with multiple splitters, which supports the first type of fiber routing line and the second type of fiber routing line, and one of the fiber routing lines can be arbitrarily selected for the above-mentioned fiber optic splitter box;
第一种走纤线路：入纤跳纤从侧后部经过裸纤保护装置接入箱体第一级适配器，第一级适配器输出端的跳纤经过顶盖板上部的第六过线部件盘绕后直接连接到第二级光分路器输入端，第二级光分路器输出端跳纤通过后板上的第三过纤部件和底板上的第一过纤部件整理后，经过底板中部的第二过纤部件组圆形盘绕后依次连接到出纤适配器的相应端口。 The first type of fiber routing line: the incoming fiber jumper is connected to the first-level adapter of the box through the bare fiber protection device from the side and rear, and the jumper fiber at the output end of the first-level adapter is coiled through the sixth wire-passing part on the top of the top cover. It is directly connected to the input end of the second-level optical splitter, and the jumper fiber at the output end of the second-level optical splitter passes through the third fiber-passing part on the rear board and the first fiber-passing part on the bottom board, and then passes through the The second fiber-passing component group is coiled in a circle and connected to corresponding ports of the fiber-out adapter in turn.
第二种走纤线路：入纤跳纤从侧后部经过裸纤保护装置接入第一级适配器，第一级适配器输出端跳纤连接到第一级光分路器输入端，第一级光分路器输出纤经过同侧顶盖板上的第五过纤部件盘绕后连接到位于顶盖板上的同侧的第二级适配器端口，第二级适配器输出跳纤经过同侧顶盖板上的第六过纤部件盘绕后，再经过后板同侧的第四过纤部件整理，连接到两个第二级光分路器输入端口，两个第二级光分路器的输出跳纤通过后板同侧的第三过纤部件和底板上的第一过纤部件整理后，经过底板中部的第二过纤部件组圆形盘绕后依次连接到出纤适配器的相应端口。 The second type of fiber routing: the incoming fiber jumper is connected to the first-level adapter through the bare fiber protection device from the side and rear, and the output end of the first-level adapter is connected to the input end of the first-level optical splitter. The output fiber of the optical splitter is coiled through the fifth fiber-passing part on the top cover on the same side and then connected to the second-level adapter port on the same side on the top cover, and the output jumper fiber of the second-level adapter passes through the top cover on the same side After the sixth fiber-passing part on the board is coiled, it is sorted by the fourth fiber-passing part on the same side of the rear board, and connected to the input ports of the two second-level optical splitters, and the output ports of the two second-level optical splitters After the jumper fiber passes through the third fiber-passing part on the same side of the rear panel and the first fiber-passing part on the bottom plate, it passes through the second fiber-passing part group in the middle of the bottom plate and is circularly coiled and then connected to the corresponding port of the fiber outlet adapter in turn.
由于采用本发明的技术方案，本发明具有以下技术效果： Owing to adopting technical scheme of the present invention, the present invention has following technical effect:
1、本发明实现了不需要改造箱体而兼容提供1×n和1×2n两种比例的光分路功能。 1. The present invention realizes the compatible provision of optical branching functions with two ratios of 1×n and 1×2n without modifying the cabinet.
2、独特的走线设计，便于箱体内部的光纤连接相关的部件的布局，能够满足1×n和1×2n两种比例的光分路功能，且连接快速，扩容操作便利。 2. The unique wiring design is convenient for the layout of the components related to the optical fiber connection inside the box, and can meet the optical splitting function of two ratios of 1×n and 1×2n, and the connection is fast and the expansion operation is convenient.
3、通过采用一个1×2和两个1×n的二级光分路器的选择性安置并通过箱体内的合理布局，充分利用顶盖板、后板和底板的位置特点设置和光纤连接相关的部件，可以不需要改造箱体，兼容提供1×n和1×2n两种比例的光分路功能,且保证了光纤走线安全合理，使得光纤弯曲的曲率半径符合标准要求。 3. Through the selective placement of one 1×2 and two 1×n secondary optical splitters and the reasonable layout in the cabinet, the position characteristics of the top cover, rear board and bottom board are fully utilized and the optical fiber connection Relevant components do not need to modify the box, and are compatible to provide optical splitting functions with two ratios of 1×n and 1×2n, and ensure that the fiber routing is safe and reasonable, so that the curvature radius of the fiber bend meets the standard requirements.
4、本发明对1×n和1×2n两种比例的光分路功能两者之间可以快速地互相转换形态，其配置灵活，操作方便，可以快速满足网络扩容的需要（只需加有限器件即可从1×n转换成1×2n），也为网络运营商节约了成本。 4. The present invention can quickly switch between the optical splitting functions of two ratios of 1×n and 1×2n. It is flexible in configuration, easy to operate, and can quickly meet the needs of network expansion (only need to add a limited Devices can be converted from 1×n to 1×2n), which also saves costs for network operators.
附图说明 Description of drawings
图1为本发明所提供的实施例的内部结构示意图。 Fig. 1 is a schematic diagram of the internal structure of the embodiment provided by the present invention.
图2为本发明所提供的实施例的示意图。 Fig. 2 is a schematic diagram of an embodiment provided by the present invention.
图3为本发明所提供的实施例在1×2n容量时的走纤示意图。 FIG. 3 is a schematic diagram of fiber routing in the embodiment provided by the present invention at a capacity of 1×2n.
图4为本发明所提供的实施例在1×n容量时的走纤示意图。 FIG. 4 is a schematic diagram of fiber routing in the embodiment provided by the present invention at a capacity of 1×n.
具体实施方式 detailed description
参照附图。本发明所提供的多分路器配置的光纤分光箱，包括顶盖板1、后板2、底板3、安装支架4、侧盖板5和前挡板6，箱顶板1和后板2固定连接，后板2和底板3铰接，侧盖板5为箱体中的固定板，在顶盖板盖上时，其和顶盖板共同形成光纤分光箱的顶部。而在维修和进行光纤连接操作是只需打开顶盖板即可，光纤分光箱中的底板上和光纤连接相关的部件均处于顶盖板1之下。 Refer to attached picture. The optical fiber splitter box provided by the present invention includes a top cover plate 1, a rear plate 2, a bottom plate 3, a mounting bracket 4, a side cover plate 5 and a front baffle plate 6, and the box top plate 1 and the rear plate 2 are fixedly connected , the rear plate 2 and the bottom plate 3 are hinged, and the side cover plate 5 is a fixed plate in the box body. When the top cover plate is covered, it and the top cover plate jointly form the top of the optical fiber splitter box. In the maintenance and optical fiber connection operation, it is only necessary to open the top cover, and the components related to the optical fiber connection on the bottom plate in the optical fiber splitting box are all under the top cover 1 .
所述光纤分光箱还设置有出纤适配器11。 The optical fiber splitting box is also provided with a fiber outlet adapter 11 .
所述箱体的底板3在其第一侧的中间部位固定安装有一个1×1的第一级光纤适配器12，用于连接入口光纤；在所述底板3中部的后侧固定安装有第一固定结构31，用于可拆卸地安装一个1×2的第一级光分路器13，所述第一侧为入口光纤进入光纤分光箱的这一侧。 The bottom plate 3 of the box body is fixedly installed with a 1×1 first-level optical fiber adapter 12 in the middle part of the first side, which is used to connect the inlet optical fiber; The fixing structure 31 is used for detachably installing a 1×2 first-stage optical splitter 13, and the first side is the side where the entrance optical fiber enters the optical fiber splitting box.
所述箱体的顶盖板1的中部的中间部位设置有一个第二固定结构32，用于可拆式地安装一个2×2的第二级光纤适配器14。 A second fixing structure 32 is provided in the middle of the middle part of the top cover plate 1 of the box for detachably installing a 2×2 second-level optical fiber adapter 14 .
所述箱体的后板2的中部安装有两个叠设的1×n的第二级光分路器15,所述n为所述出纤适配器11的出纤总路数的一半。 Two stacked 1×n second-level optical splitters 15 are installed in the middle of the rear panel 2 of the box, and the n is half of the total number of fiber outlets of the fiber outlet adapter 11 .
所述底板在第二侧的后侧设置第一过纤部件41，用于将自第二级光分路器15的出纤导入到底板上以连接到出纤适配器，所述第二侧为箱体左侧和右侧中的其中一侧，所述第一侧为箱体左侧和右侧中的另一侧。 The bottom plate is provided with a first fiber passing component 41 on the rear side of the second side, which is used to guide the outgoing fiber from the second-level optical splitter 15 into the bottom plate to be connected to the fiber outlet adapter, and the second side is One of the left side and the right side of the box body, the first side is the other side of the left side and the right side of the box body.
所述底板在出纤适配器11和底板的后侧之间且在第一过纤部件到第一级光纤适配器12之间的空间中设置第二过纤部件组42，所述第二过纤部件组用于对第一过纤部件41和出纤适配器11之间的光纤整理光纤线圈51；所述第二过纤部件组有沿着出纤适配器长度方向排列的多对过纤部件。 The bottom plate is provided with a second fiber passing component group 42 between the fiber outlet adapter 11 and the rear side of the bottom plate and in the space between the first fiber passing component and the first-level fiber optic adapter 12, and the second fiber passing component The group is used to organize the fiber coil 51 between the first fiber passing component 41 and the fiber outlet adapter 11; the second fiber passing component group has multiple pairs of fiber passing components arranged along the length direction of the fiber outlet adapter.
所述后板在1×n的第二级光分路器15的左右侧外分别设置第三过纤部件43和第四过纤部件44。 The rear panel is respectively provided with a third fiber passing component 43 and a fourth fiber passing component 44 outside the left and right sides of the 1×n second-level optical splitter 15 .
所述顶盖板1在第二固定结构32的左右侧分别设置第五过纤部件组45和第六过纤部件组46，所述第五过纤部件组45用于对第一级光分路器13和第二级光纤适配器14之间的光纤整理线圈52，所述第六过纤部件组46用于对第二级光纤适配器14和第二级光分路器15之间的光纤整理线圈或对第一级光纤适配器12和第二级光分路器15之间的光纤整理线圈53。 The top cover plate 1 is provided with a fifth fiber passing component group 45 and a sixth fiber passing component group 46 on the left and right sides of the second fixing structure 32 respectively, and the fifth fiber passing component group 45 is used to split the first-level light The optical fiber finishing coil 52 between the router 13 and the second-level optical fiber adapter 14, the sixth fiber passing component group 46 is used for finishing the optical fiber between the second-level optical fiber adapter 14 and the second-level optical splitter 15 The coil or the optical fiber finishing coil 53 between the first-level optical fiber adapter 12 and the second-level optical splitter 15 .
所述光纤分光箱在第一级适配器前设有第七过纤部件组47，用于对第一级适配器前光纤整理线圈54。 The optical fiber splitting box is provided with a seventh fiber passing component group 47 in front of the first-level adapter, which is used for finishing the coil 54 of the optical fiber in front of the first-level adapter.
所述过纤部件可采用有开口的过纤圈。本发明中，底板上安装有过纤圈用于盘绕箱内光纤走线。其中，一个放置于靠近第二级光分路器的输出端口处（即第一过纤部件41），另外六个呈三组，每组2个一前一后整齐排列在底板中间（第二过纤部件组42）。 The fiber passing part may adopt a fiber passing ring with an opening. In the present invention, a fiber loop is installed on the bottom plate for winding the optical fiber in the box. Among them, one is placed near the output port of the second-level optical splitter (that is, the first fiber-passing component 41), and the other six are in three groups, and each group of two is neatly arranged in the middle of the bottom plate (the second Fiber component set 42).
本发明顶盖板的上部安装八个过纤圈（即第五过纤部件组45和第六过纤部件组46），以长方形组态放置于中部；后板两侧分别安装了一个圆形过纤圈（第三过纤部件43和第四过纤部件44）。 Eight fiber-passing rings (i.e., the fifth fiber-passing part group 45 and the sixth fiber-passing part group 46) are installed on the upper part of the top cover plate of the present invention, which are placed in the middle in a rectangular configuration; Fiber passing loops (the third fiber passing component 43 and the fourth fiber passing component 44).
这些过纤圈的摆放位置可以保证光纤走线安全合理，使光纤弯曲的曲率半径符合标准要求。 The placement of these fiber loops can ensure safe and reasonable fiber routing, and make the curvature radius of the fiber bend meet the standard requirements.
所述第一固定结构31可采用第一卡槽，它通过与底板螺钉连接的卡板31和底板形成，使所述1×2的第一级光分路器13可拆卸地安装在卡槽中，能够实现快速安装和适应第一级光分路器13的外形变化。 The first fixing structure 31 can adopt the first card slot, which is formed by the card plate 31 and the bottom plate screwed to the bottom plate, so that the 1×2 first-level optical splitter 13 can be detachably installed in the card slot In this way, quick installation and adaptation to the shape change of the first-stage optical splitter 13 can be realized.
所述后板2的中部可拆式固定安装板33，所述第二级光分路器15固定在所述安装板中。 The middle part of the rear panel 2 is detachably fixed to the mounting plate 33, and the second-stage optical splitter 15 is fixed in the mounting plate.
外部入纤从安装支架4后面接入，安装支架4后部内侧安装有裸纤保护套装置7；实现分路后的输出盘纤由安装在底板前部的出纤适配器11端口引出，经过出纤整理扣8与后端的光纤链路相连。 The external input fiber is connected from the back of the installation bracket 4, and the bare fiber protective sleeve device 7 is installed on the inner side of the rear of the installation bracket 4; the output disk fiber after the branching is realized is led out from the fiber output adapter 11 port installed on the front of the bottom plate, and passes through the outlet The fiber finishing button 8 is connected with the optical fiber link at the rear end.
以下以n=32为例介绍本发明的走纤方法，其具有两种走纤线路： The following takes n=32 as an example to introduce the fiber routing method of the present invention, which has two fiber routing lines:
第一种实现1×32光纤分纤箱。这种情况下只需用一个1×32的第二级光分路器15，第一级光分路器13不需要配置。其走线路由如图4所示：入纤跳纤从侧后部经过裸纤保护装置接入箱体第一级适配器12，第一级适配器12输出端的跳纤（1×32输入盘纤）经过顶盖板上部的第六过线部件46盘绕后直接连接到1×32的第二级光分路器15输入端，第二级光分路器15输出端跳纤（1×32输出盘纤）共有32路，通过后板上的第三过纤部件43和底板上的第一过纤部件41整理后，被分成三组，分别经过底板中部的第二过纤部件组42圆形盘绕后依次连接到出纤适配器11的相应端口。 The first one realizes 1×32 fiber distribution box. In this case, only a 1×32 second-level optical splitter 15 is needed, and the first-level optical splitter 13 does not need to be configured. Its wiring route is shown in Figure 4: the incoming fiber jumper is connected to the first-stage adapter 12 of the cabinet through the bare fiber protection device from the side rear, and the fiber jumper at the output end of the first-stage adapter 12 (1×32 input disk fiber) After being coiled through the sixth wire-passing part 46 on the top cover plate, it is directly connected to the input end of the second-level optical splitter 15 of 1×32, and the output end of the second-level optical splitter 15 is jumpered (1×32 output disc Fiber) has a total of 32 paths, after being sorted through the third fiber passing part 43 on the rear plate and the first fiber passing part 41 on the bottom plate, they are divided into three groups, which respectively pass through the second fiber passing part group 42 in the middle of the bottom plate and are circularly coiled Then connect to the corresponding port of the fiber outlet adapter 11 in turn.
第二种实现1×64光纤分纤箱。这种情况下需要配置一个1×2的第一级光分路器13和两个1×32的第二级光分路器15，呈级联方式连接。其走线路由如图3所示：入纤跳纤从侧后部经过裸纤保护装置接入第一级适配器12，第一级适配器12输出端跳纤（1×2输入纤）连接到1×2的第一级光分路器13输入端，1×2的第一级光分路器13输出纤（1×2输出盘纤）经过同侧顶盖板上的第五过纤部件45盘绕后连接到位于顶盖板上的同侧的第二级适配器14端口，第二级适配器14输出跳纤（2个1×32输入盘纤）经过同侧顶盖板上的第六过纤部件46盘绕后，再经过后板同侧的第四过纤部件44整理，连接到两个1×32的第二级光分路器15输入端口，两个1×32的第二级光分路器15的输出跳纤（1×32输出盘纤两组共64条光路）通过后板同侧的第三过纤部件43和底板后侧部的第一过纤部件41整理后，被分成三组，分别经过底板中部的第二过纤部件组42圆形盘绕后依次连接到出纤适配器11的相应端口。 The second one realizes 1×64 fiber distribution box. In this case, a 1×2 first-level optical splitter 13 and two 1×32 second-level optical splitters 15 need to be configured and connected in a cascaded manner. Its routing is shown in Figure 3: the incoming fiber jumper is connected to the first-level adapter 12 from the side and rear through the bare fiber protection device, and the output end of the first-level adapter 12 is connected to the jumper fiber (1×2 input fiber) to 1 The input end of the first-stage optical splitter 13 of ×2, the output fiber of the first-stage optical splitter 13 of 1×2 (1×2 output disc fiber) passes through the fifth fiber-passing component 45 on the top cover plate on the same side After being coiled, it is connected to the second-level adapter 14 port on the same side on the top cover, and the second-level adapter 14 output jumper fibers (two 1×32 input coil fibers) pass through the sixth fiber jumper on the same side of the top cover. After the components 46 are coiled, they are sorted through the fourth fiber passing component 44 on the same side of the back plate, and connected to the input ports of the second-level optical splitter 15 of two 1×32, and the second-level optical splitters of two 1×32 The output jumper fiber of the router 15 (1×32 output disc fiber group, a total of 64 optical paths) is divided into The three groups respectively pass through the second fiber passing component group 42 in the middle of the bottom plate and are connected to the corresponding ports of the fiber outlet adapter 11 in turn after circular coiling.
第二种配置只需要在第一种的基础上再安装一个1×2光分路器、一个1×n的第二级光分路器和一个2×2的第二级光纤适配器即可，同一个箱体结构中两种配置可以快速地互相转换形态，即方便扩容，又节约了成本。 The second configuration only needs to install a 1×2 optical splitter, a 1×n second-level optical splitter and a 2×2 second-level optical fiber adapter on the basis of the first one. The two configurations in the same box structure can be quickly converted to each other, which is convenient for capacity expansion and saves costs.
以上所述仅为本发明的具体实施例，但本发明的结构特征并不局限于此，任何本领域的技术人员在本发明的领域内，所作的变化或修饰皆涵盖在本发明的保护范围之中。 The above descriptions are only specific embodiments of the present invention, but the structural features of the present invention are not limited thereto, any changes or modifications made by those skilled in the art within the scope of the present invention are covered by the protection scope of the present invention among.
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