CN203799080U - Optical fiber distribution frame applicable to PON system - Google Patents
Optical fiber distribution frame applicable to PON system Download PDFInfo
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- CN203799080U CN203799080U CN201420207744.6U CN201420207744U CN203799080U CN 203799080 U CN203799080 U CN 203799080U CN 201420207744 U CN201420207744 U CN 201420207744U CN 203799080 U CN203799080 U CN 203799080U
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 67
- 239000000835 fiber Substances 0.000 claims abstract description 146
- 230000003287 optical effect Effects 0.000 claims abstract description 122
- 238000003466 welding Methods 0.000 claims description 45
- 230000035807 sensation Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000007499 fusion processing Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000009191 jumping Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
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Abstract
The utility model provides an optical fiber distribution frame applicable to a PON system, comprising at least optical fiber distribution disc which comprises at one least fiber connector. At least one fiber core in a first optical cable is welded on a fiber connector; at least one fiber core in a second optical cable is welded on another fiber core connector; the fiber quantity which is in the first optical cable and is welded onto the optical fiber connector is equal to the fiber quantity which is in the second optical cable and is welded onto the fiber core connector; and the fiber cores in the first optical cable and the second optical cable are directly welded in the optical fiber distribution disc. The optical fiber distribution frame applicable to the PON system disclosed by the utility model can improve the utilization rate of the optical cable.
Description
Technical field
The application relates to optical-fiber network technical field, relates in particular to a kind of fibre distribution frame of the PON of being applied to system.
Background technology
PON (Passive Optical Network, passive optical-fiber network) system is at ODN (Optical Distribution Network, optical distribution) in do not contain any electron device and electronic power supply, ODN is all made up of passive devices such as optical branching devices (Splitter), does not need valuable active electronic equipment.Conventionally, a PON comprises an optical line terminal (OLT) that is installed on console for centralized control, and a collection of supporting ONU that is installed on customer site (the Optical Network Unit of one-level, optical network unit), ODN between OLT and ONU has comprised optical fiber and passive optical splitters or coupling mechanism, and these devices connect by optical fiber.Prior art is optical fiber directly to be carried out in fibre distribution frame to welding, and still, this connected mode fiber utilization is not high.
Utility model content
Because the problem that prior art exists, the goal of the invention of the embodiment of the present application is to provide a kind of fibre distribution frame of the PON of being applied to system, to improve the utilization factor of optical cable.
The fibre distribution frame of PON system that what the embodiment of the present invention provided be applied to comprises: at least one optical fiber distributing dish, described optical fiber distributing dish comprises at least two core connectors, at least one fibre core in the first optical cable is fused to a core connector, at least one fibre core in the second optical cable is fused to another core connector, the fibre core quantity that is fused to core connector in the first optical cable equates with the fibre core quantity that is fused to core connector in the second optical cable, remaining fibre core directly welding in optical fiber distributing dish in the first optical cable and the second optical cable.
Preferably, the first optical cable and the second optical cable respectively comprise 12 fibre cores, every six roots of sensation is one group, described fibre distribution frame comprises two optical fiber distributing dishes, each optical fiber distributing dish comprises 12 core connectors, and first to No. six fibre core in the first first group, optical cable is correspondingly welded to first to No. six core connector of first optical fiber distributing dish; First to No. six fibre core in the second first group, optical cable is correspondingly welded to the 7th to the ten No. two core connector of first optical fiber distributing dish;
The the 7th to the ten No. two fibre core directly welding in second optical fiber distributing dish in second group, the 7th to the ten No. two fibre core in the first second group, optical cable and the second optical cable.
Preferably, the first optical cable and the second optical cable respectively comprise 12 fibre cores, every four is one group, described fibre distribution frame comprises two optical fiber distributing dishes, first light distribution board comprises eight core connectors, second light distribution board comprises 12 core connectors, No. first to fourth fibre core in the first first group, optical cable is welded to first to fourth number core connector of first optical fiber distributing dish, and No. first to fourth fibre core in the second first group, optical cable is welded to the 5th to No. eight core connector of the first optical fiber distributing dish; The the 9th to the ten No. two fibre core directly welding in second optical fiber thermoconnecting tray in the 5th to No. eight, the 3rd group in second group, the 9th to the ten No. two fibre core in the 5th to No. eight, the 3rd group in the first second group, optical cable and the second optical cable.
Preferably, described fibre distribution frame also comprises optical splitter, and described optical splitter is connected between the core connector of fibre core welding of the first optical cable and the core connector of the fibre core welding of the second optical cable.
Further preferably, described optical splitter is also for connecting optical network unit.
The fibre distribution frame that the embodiment of the present application provides comprises optical fiber distributing dish, and on this distribution board, at least welding has the fibre core of two optical cable respective amount, and the directly welding in distribution board of other fibre cores.Compared with prior art, due to the bridge as welding optic fibre fibre core by fibre distribution frame, instead of all directly weldings of whole fibre cores, thereby can realize multiple jumping fiber mode, change light path travel path, and then improved the utilization factor of optical fiber, saved optical cable.
Brief description of the drawings
Fig. 1 is a kind of composition schematic diagram of PON system;
Fig. 2 is the fibre distribution frame composition structural representation of the application's the PON system that is applied to;
Fig. 3 is fused fiber splice process flow diagram in the application's the fibre distribution frame that is applied to PON system;
The optical fiber distributing dish schematic diagram of the example that Fig. 4 (a) is the embodiment of the present application;
The optical fiber distributing dish schematic diagram of another example that Fig. 4 (b) is the embodiment of the present application;
Fig. 5 is the fused fiber splice schematic diagram that the embodiment of the present application is applied to multi-site.
Embodiment
In order to make those skilled in the art person understand better the technical scheme in the application, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiment.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all should belong to the scope of the application's protection.
For ease of understanding the application's technical scheme, first PON system is carried out to lower simple introduction.Referring to Fig. 1, the figure shows the composition schematic diagram of PON system.This system comprises optical line terminal OLT, Optical Distribution Network ODN and numerous network unit/optical network terminal ONU/ONT.In PON system, the optical line terminal OLT in central office issues multiple business in the mode of broadcast, be assigned to the ONT Optical Network Terminal ONT in user's side after Optical Distribution Network ODN.When ONT Optical Network Terminal ONT receives after user's related data, after merging, ONT Optical Network Terminal ODN is transferred to the light terminal OLT that is positioned at central office.In data transmission procedure, need to adopt a large amount of optical fiber.Because business itself is point-to-point, if take optical fiber and the direct welding of optical fiber in transmitting procedure, the utilization factor of optical cable will be had a strong impact on.For the problem of optical cable utilization factor, the present invention proposes following solution.
Referring to Fig. 2, the figure shows an embodiment of the application's fibre distribution frame 20.This embodiment comprises at least one optical fiber distributing dish 21, described optical fiber distributing dish 21 comprises at least two core connectors 211, at least one fibre core 221 in the first optical cable 22 is fused to a core connector, at least one fibre core 231 in the second optical cable 23 is fused to another core connector, the fibre core quantity that is fused to core connector in the first optical cable 22 equates with the fibre core quantity that is fused to core connector in the second optical cable 23, remaining fibre core directly welding in optical fiber distributing dish in the first optical cable 22 and the second optical cable 23.
The fibre distribution frame that the present embodiment provides comprises optical fiber distributing dish, and on this distribution board, at least welding has the fibre core of two optical cable respective amount, and the directly welding in distribution board of other fibre cores.Compared with prior art, due to the bridge as welding optic fibre fibre core by fibre distribution frame, instead of all directly weldings of whole fibre cores, thereby can realize multiple jumping fiber mode, change light path travel path, and then improved the utilization factor of optical fiber, saved optical cable.
In the above-described embodiments, the fibre core fusion process in optical fiber distributing dish following (referring to Fig. 3, the figure shows the flow process of the fused fiber splice of the PON of being applied to system of the present invention):
Step S301: the fibre core of two optical cables treating welding is divided into respectively to many groups;
Based on the consideration of transfer efficiency, normally many fibre cores of optical cable, such as 8 cores, 12 cores, 24 cores or more, these fibre cores all can transmit data relatively independently, for ease of realizing welding, the fibre core that the present embodiment is first treated every optical cable of welding divides into groups, and at least marks off two groups, takes different welding modes for the group of dividing out by group.The present embodiment is to the fibre core quantity of every group and be not construed as limiting, in actual application, can continue to divide according to actual conditions, if carry out two optical cables that optical cable is different brackets of welding, there is difference in the fibre core quantity comprising, and in fusion process, will occur the redundancy of fibre core.For this reason, under normal circumstances, in the time realizing fused fiber splice, consider the utilization factor problem of optical fiber, the quantity of preferred cable fibre core is identical, such as being 12 core optical cables.
Step S302: at least one group of fibre core in many groups, the first optical cable is welded on the core connector in the optical fiber distributing dish of fibre distribution frame, the fibre core of corresponding group equal with the fibre core quantity of described at least one group in the second optical cable is welded on the other core connector in the optical fiber distributing dish of fibre distribution frame;
Mark off after multiple groups for every optical cable by abovementioned steps, from optical cable, select at least one group, fibre core in this group of the first optical cable is fused on the core connector in the optical fiber distributing dish of fibre distribution frame, meanwhile, that identical with this group fibre core quantity group in the second optical cable is also fused on the other core connector in the optical fiber distributing dish of fibre distribution frame, thereby has realized the welding of two optical cables to fibre distribution frame.
Step S303: by the directly welding in optical fiber distributing dish of the fibre core of remaining other groups in many groups of the fibre core of remaining other groups in many groups of an optical cable and another root optical cable;
In front step, the part fibre core in two optical cables is fused to after fibre distribution frame, then the fibre core in remaining set is carried out to direct welding.As previously mentioned, if the fibre core quantity of two optical fiber for the treatment of welding group identical, that divide is also identical, will realize direct welding completely, otherwise, will there is fibre core redundancy.Be the application preferably the fibre core quantity of two optical fiber is identical, every group of fibre core quantity comprising is identical in multiple groups.However,, in some cases for follow-up compatibility or introduce the needs of new optical cable, can suitably remain some fibre core.
In order to be illustrated more clearly in the application's technical scheme, explained below in conjunction with two instantiations.Referring to Fig. 4 (a), the fibre core quantity that the figure shows the optical cable (optical cable LA, LB) for the treatment of welding is 12, fibre core is divided into 2 groups of optical fiber distributing dishes under situation, and the 1st to No. 6 fibre core being about in first group, first LA and second LB optical cable is welded to fibre distribution frame; By the 7th to No. 12 direct welding (not shown) of fibre core in second group, the 7th to the 12nd core in second group, first optical cable and second optical cable.Due in the fusion process of these two optical cables, the fibre core that has half is to be fused to fibre distribution frame instead of directly welding, thereby can provide as the case may be by the operation on fibre distribution frame the connection of multiple fibre circuit, root measuring and calculating, can save 3/4ths optical cable by the optical fiber of which welding.In concrete application process, fibre distribution frame is built-in with multiple optical fiber distributing dishes, in this example owing to only there being 24 core fibre cores, if each optical fiber distributing dish comprises 12 core connectors (can connect 12 fibre cores), so only need two optical fiber distributing dishes, 1～No. 6 fibre core in first group, optical cable of 1～No. 6 core connector welding in one of them optical fiber distributing dish, 1～No. 6 fibre core in first group, another root optical cable of 7～No. 12 core connector weldings, whole core connectors in another optical fiber distributing dish are for carrying out direct welding to remaining fibre core, be about to 7～No. 12 fibre cores direct welding in second optical fiber distributing dish in second group, 7～No. 12 fibre cores in second group, optical cable and another root optical cable.
Referring to Fig. 4 (b), the fibre core quantity that the figure shows the optical fiber for the treatment of welding is 12, fibre core is divided into 3 groups of optical fiber distributing dishes under situation, and the 1st to No. 4 fibre core being about in first group, first and second optical cable is welded to fibre distribution frame; By the 9th to No. 12 direct welding of fibre core in the 5th to No. 8, the 3rd group in second group, the 9th to No. 12 fibre core in the 5th to No. 8, the 3rd group in second group, first optical cable and second optical cable.Optical fiber by which welding can be saved 4/5ths optical cable.
According to the application's applicable scene, technique scheme is introduced again below.Referring to Fig. 5, the figure shows the fused fiber splice signal existing in multiple website situations.This application scenarios carries out welding for 12 a branch of core optical cables of 6 cores, and in figure, OLT comprises two PON ports (PON mouth 1, PON mouth 2), and 12 websites (note: only show part website in figure), have fibre distribution frame in each website.In this application scenarios, on the fibre distribution frame in these websites, there are two kinds of patterns: the one, front 6 cores of optical cable are all fused on fibre distribution frame, and the direct welding of rear 6 core, as the website such as 1, No. 2 in figure; The 2nd, 12 cores of optical cable are all fused on fibre distribution frame, as No. 7 websites in figure.In the welding of the second pattern, conventionally can, taking it as separatrix, will before and after it, be divided into two optical links, as formed Article 1 optical link between the OLT in figure No. 6 station, No. 8 station can form Article 2 optical link between No. 12 stations.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in the protection domain of invention.
Claims (5)
1. one kind is applied to the fibre distribution frame of PON system, it is characterized in that, this fibre distribution frame comprises: at least one optical fiber distributing dish, described optical fiber distributing dish comprises at least two core connectors, at least one fibre core in the first optical cable is fused to a core connector, at least one fibre core in the second optical cable is fused to another core connector, the fibre core quantity that is fused to core connector in the first optical cable equates with the fibre core quantity that is fused to core connector in the second optical cable, remaining fibre core directly welding in optical fiber distributing dish in the first optical cable and the second optical cable.
2. fibre distribution frame according to claim 1, it is characterized in that, the first optical cable and the second optical cable respectively comprise 12 fibre cores, every six roots of sensation is one group, described fibre distribution frame comprises two optical fiber distributing dishes, each optical fiber distributing dish comprises 12 core connectors, and first to No. six fibre core in the first first group, optical cable is correspondingly welded to first to No. six core connector of first optical fiber distributing dish; First to No. six fibre core in the second first group, optical cable is correspondingly welded to the 7th to the ten No. two core connector of first optical fiber distributing dish; The the 7th to the ten No. two fibre core directly welding in second optical fiber distributing dish in second group, the 7th to the ten No. two fibre core in the first second group, optical cable and the second optical cable.
3. fibre distribution frame according to claim 2, it is characterized in that, the first optical cable and the second optical cable respectively comprise 12 fibre cores, every four is one group, described fibre distribution frame comprises two optical fiber distributing dishes, first light distribution board comprises eight core connectors, second light distribution board comprises 12 core connectors, No. first to fourth fibre core in the first first group, optical cable is welded to first to fourth number core connector of first optical fiber distributing dish, No. first to fourth fibre core in the second first group, optical cable is welded to the 5th to No. eight core connector of the first optical fiber distributing dish, the the 9th to the ten No. two fibre core directly welding in second optical fiber thermoconnecting tray in the 5th to No. eight, the 3rd group in second group, the 9th to the ten No. two fibre core in the 5th to No. eight, the 3rd group in the first second group, optical cable and the second optical cable.
4. according to the fibre distribution frame described in any one in claims 1 to 3, it is characterized in that, described fibre distribution frame also comprises optical splitter, and described optical splitter is connected between the core connector of fibre core welding of the first optical cable and the core connector of the fibre core welding of the second optical cable.
5. fibre distribution frame according to claim 4, is characterized in that, described optical splitter is also for connecting optical network unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420207744.6U CN203799080U (en) | 2014-04-25 | 2014-04-25 | Optical fiber distribution frame applicable to PON system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420207744.6U CN203799080U (en) | 2014-04-25 | 2014-04-25 | Optical fiber distribution frame applicable to PON system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203799080U true CN203799080U (en) | 2014-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420207744.6U Expired - Lifetime CN203799080U (en) | 2014-04-25 | 2014-04-25 | Optical fiber distribution frame applicable to PON system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203799080U (en) |
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2014
- 2014-04-25 CN CN201420207744.6U patent/CN203799080U/en not_active Expired - Lifetime
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140827 |