CN2758795Y - Optical fibre distributing frame suitable for use under WDM environment - Google Patents
Optical fibre distributing frame suitable for use under WDM environment Download PDFInfo
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- CN2758795Y CN2758795Y CNU2004200905532U CN200420090553U CN2758795Y CN 2758795 Y CN2758795 Y CN 2758795Y CN U2004200905532 U CNU2004200905532 U CN U2004200905532U CN 200420090553 U CN200420090553 U CN 200420090553U CN 2758795 Y CN2758795 Y CN 2758795Y
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Abstract
The utility model relates to an optical fiber distributing frame suitable in a wavelength division multiplex environment, which adopts a full closed structure. The utility model comprises a plurality of sub frames and an optical fiber routing groove, wherein each sub frame is composed of an optical fiber inlet storage unit, an optical fiber outlet storage unit and an optical fiber distributing unit which are arranged orderly; the optical fiber inlet storage unit and the optical fiber outlet storage unit are respectively composed of n double cores or 2n single fiber disk fiber boxes, and each optical fiber has the preserving position for an optical fiber disk; the optical fiber distributing unit is composed of 2n adapters which are used for adapting the connection of optical paths, and is a distributing unit which can be turn frontward and backward or a sliding type distributing unit; the optical fiber routing groove comprises a fiber inlet routing groove which is used for providing the inlet and the outlet of optical fibers, and a fiber outlet routing groove which is used for providing the outlet of the fibers and transferring the jump of the fibers. Both sides of the routing groove are respectively provided with four vertical channels to provide the 4n core capacity for the inlet and the outlet of the fibers. The utility model is an optical fiber distributing frame suitable in a wavelength division multiplex environment, thereby, the problem of the preservation of the optical fiber disks can be solved better. Simultaneously, the performance of a WDM transmission system can not be affected and the operation of the construction and the maintenance is convenient.
Description
Technical field
The utility model relates to a kind of fiber optic distribution frame that is applicable under the wavelength-division multiplex environment.
Background technology
(1) existing fiber distributes the formation and the basic function of frame (ODF frame)
Different according to the position in optical transmission system and effect, fiber optic distribution frame can be divided three classes, i.e. the ODF frame used of the middle ODF frame used with ODF frame, WDM (wavelength-division multiplex) system of lightguide cable link terminal and light branch terminal.
(1) the lightguide cable link terminal generally is used for optical fiber cable termination with fiber optic distribution frame, and the storage of fused fiber splice, optical fiber scheduling, unnecessary tail optical fiber and the fixing and lightning protection of optical cable etc. possess following basic function:
Fixed function: after optical cable enters frame, will carry out mechanical fixation, install the ground wire guard block additional, carry out termination protection and handle, and optical fiber is divided into groups and protects to its oversheath and strengthening core;
Welding function: after optical fiber of drawing in the optical cable and the stern fast welding, unnecessary optical fiber is coiled storage, and fusion splice is protected;
Allotment function: connector related on the stern fast is plugged on the adapter, docks with the optical connector realization light path of adapter opposite side.Adapter and connector should be able to plug and unplug flexibly; Light path can carry out freely allocating and testing;
Memory function:, they can rule fitly be placed for various cross-coupled smooth connecting lines between the frame provide storage.In the distributing frame suitable space and mode should be arranged, make this part light connecting line cabling clear, easy to adjust, and can satisfy the requirement of minimum bending radius.
Existing lightguide cable link terminal with fiber optic distribution frame mainly by go into cable, molten fine, dish is fine, the joints of optical fibre four parts are formed, concrete parts organic frame, sub-frame, dish, welding unit, terminal unit, the fine unit of dish, protects annex, fiber adapter, the tail optical fiber of welding point.3 kinds of versions are generally arranged, promptly modular, drawer type and modular:
Modular fibre distribution frame (narrow) is that a plurality of unit are installed on a frame, by a welding unit, a plurality of blocks.Each block can connect 6～12 core fibres, is applicable to the optical cable of low capacity.Owing to its inherent limitation on the space provides, in operation and use, certain inconvenience is arranged.
The fibre distribution frame of drawer type also is that a frame is divided into a plurality of unit, and each unit is made up of one or two drawer.When carrying out welding and line transfer, pull out corresponding drawer and outside frame, operate, thereby bigger operating space is arranged, make between each unit to be independent of each other.Though this fibre distribution frame provides bigger space for the optical fiber cable termination operation dexterously, with modular the same, puts at the storage and the cloth of light connecting line, and maximum facility still can not be provided.This frame is present maximum a kind of form.
Modular organization is that fibre distribution frame is divided into multiple functional module, and the welding of optical cable, the storage of allotment line, connecting line and other feature operations are finished in each module respectively, and these modules are as required in aggregate erection to the public frame.This structure can provide maximum dirigibility, satisfies the needs of communication network preferably.The modular high-capacity optical fiber of releasing distributes frame at present, utilizes unique textures such as panel and drawer, makes the welding and the allotment line more convenient operation of optical fiber; In addition, adopt vertical trough and plate fiber column storing fiber optic, when storing fiber optic is not enough, adopt the storing fiber optic frame, solved laying and storage problem of tail optical fiber effectively.It is use always in the high-capacity optical fiber distributing frame a kind of.
(2) the middle ODF frame used of wdm system a large amount of light jumping fiber dishes of being mainly used in terminal, switching, temporary scheduling, the turnover ODF frame of different wave length light signal stay and light jumping fiber fixing etc.
(3) the ODF frame used of the light branch road light that is mainly used in equipment such as SDH and data props up crossing terminal, switching and temporary scheduling.
Compare with the ODF frame with the lightguide cable link terminal, the ODF frame that middle ODF frame that wdm system is used and light branch road are used is mainly used in the switching and the scheduling of light jumping fiber, so do not need the welding unit, the 26S Proteasome Structure and Function of other parts is identical with the ODF frame with the lightguide cable link terminal.
In addition, the ODF frame also can be divided into narrow posture and wide rack and panel construction on structure, and narrow posture (width is 300mm and following) is mainly used in the less optical fiber cable termination of fiber number (100 cores are following); Wide posture (width is more than 300 millimeters, and is wherein most of for more than 600mm reaches) is used for the scheduling in the wave-division device and the terminal and the switching of many optical cables more.
The problem that exists when (two) existing ODF frame uses under the WDM environment
At present, optical communication just develops towards the direction of hypervelocity, high capacity, long distance, based on the wdm system of 2.5Gb/s and 10Gb/s as main light transmitting means at long distance backbone transmission network be used widely in the transmission network inside the province.Wdm system is established in the platform status of trunk transit network.Simultaneously, along with the continuous progress of optical transport technology, the transmission range and the capacity of wdm system constantly increase.With the 10Gb/s wdm system is example, and its without electronic relay transmission range is extended to 2000km and even 4000km by 480km, and its transmission capacity also increases to 160 ripples by 32 ripples, and the application bandwidth of optical fiber is developed to L-band by C-band.ODF under the high capacity wdm system environment has following characteristics: the further increase of capacity, the management of light jumping fiber move towards three-dimensional from the plane, the performance of the joints of optical fibre need further increase, and to optical fiber connect, the integrated function of monitoring, management.
Application along with the high capacity wdm system, need the fiber capacity of terminal or switching increasing, the ODF distribution is more and more intensive, but traditional optical patchcord memory capacity is little, the interior cabling of frame is random, allotment connects inconvenience, function is less, simple in structure, and these shortcomings are performance gradually in actual operation and maintenance.
The ODF frame that existing wdm system the is used structures that adopt wide frame module formula more, come by the ODF frame evolution that the lightguide cable link terminal is used, only be to remove the circuit welded module, this wide posture ODF generally can adorn 8-9 sub-frame, each sub-frame is 72 cores, the frame both sides are trough, and a side is the optical cable cabling, and opposite side is optical patchcord cabling (through around fine post).Present such ODF uses in wavelength-division multiplex system in a large number.Such structure is not used still good for a long time at the open number of channels of high capacity wavelength-division system, when number of channels exists following problem more for a long time: the fine difficulty of (1) dish.When the light jumping fiber was longer, because the fine capacity of ODF dish itself is less, thereby can only frame outer (as in the machine room conduit etc.) coils and puts; When adopting around fine post, because a large amount of optical fiber is stacked together, corresponding fault optical fiber can't conveniently extract.(2) operating space is less, the construction maintenance inconvenience.Performances such as all because ODF frame and connectivity problem cause, joints of optical fibre Insertion Loss is big, return loss is little for most of reason of the jumping fiber that (3) occurred in engineering fracture, repeatability and consistance are all relatively poor.
The existence of the problems referred to above all brings certain influence to the performance and the construction maintenance of WDM transmission system, and therefore pressing for a kind of new O DF solves these problems, to adapt to the development of wdm system.
The utility model content
The purpose of this utility model is to provide a kind of fiber optic distribution frame that is applicable under the wavelength-division multiplex environment, stays problem thereby can solve fiber reel preferably, the operation that does not influence the performance of WDM transmission system and be convenient to construction maintenance simultaneously.
A kind of fiber optic distribution frame that is applicable under the wavelength-division multiplex environment provided by the utility model, adopt full-closed structure, comprise experimental process frame, optical fiber trough, it is characterized in that: each sub-frame by be arranged in order advance the optical fiber storage unit, go out the optical fiber storage unit, the optical fiber distributing unit is formed, wherein: be made up of n twin-core or 2n single fiber fiber management tray into and out of fine storage unit, every optical fiber gives and stays fiber reel to stay the position; The optical fiber distributing unit is made up of 2n the adapter that is used for adaptive light path connection, and the optical fiber distributing unit is front and back upset block or slidingtype block; The fiber trough that advances fine trough and provide fiber, switching jumping fiber to use that provides turnover optical fiber to use is provided the optical fiber trough, and the both sides trough respectively is provided with 4 road vertical channels, provides turnover fine 4n core capacity.
The above-mentioned fiber optic distribution frame that is applicable under the wavelength-division multiplex environment, wherein, fiber management tray is for ease of staying the drawer type of optical fiber at the box inner disc, and dish stays the radius-of-curvature of optical fiber more than or equal to 40mm.
The above-mentioned fiber optic distribution frame that is applicable under the wavelength-division multiplex environment wherein, is equipped with into and out of fine storage unit front and shows a bar.
The above-mentioned fiber optic distribution frame that is applicable under the wavelength-division multiplex environment, wherein, the optical fiber distributing unit can install and fix Optical attenuator and converter for the needs that adapt to switching and data service on adapter.
The above-mentioned fiber optic distribution frame that is applicable under the wavelength-division multiplex environment, wherein, in the optical fiber trough to the fixedly colligation of described optical fiber wire harness.
Adopted above-mentioned technical solution, made to the utlity model has following advantage:
1) single fiber that can realize the light jumping fiber is managed, and can extract replacing easily to fault optical fiber.
2) the dish fibre is longer, and the length of every light jumping fiber can be coiled and be stayed certain-length (can be about 8 meters), and the dish that can solve current optical fiber substantially stays problem.
3) the fine unit of dish radius-of-curvature is bigger, can satisfy the performance index of light jumping fiber preferably, and make the light jumping fiber not fragile.
4) turnover optical fiber is clearly demarcated, convenient management.
5) be convenient to implementation and operation and maintenance processing.
6) adopt the SC/PC joints of optical fibre, part has reduced the influence to wdm system such as the return loss of the joints of optical fibre.
Description of drawings
Fig. 1 (a)～(b) is respectively the synoptic diagram of the utility model allotment, switching;
Fig. 2 (a)～(b) is respectively the panel synoptic diagram of the vertical formula of the utility model, horizontal type;
Fig. 3 is the structural representation of fiber management tray of the present utility model;
Fig. 4 (a)～(b) is that vertical formula and the sub-frame of horizontal type are formed synoptic diagram;
Fig. 5 is the inner trace-diagram of the utility model frame.
Embodiment
The utility model, promptly a kind of fiber optic distribution frame that is applicable under the wavelength-division multiplex environment has following characteristics in capacity, function and configuration aspects.
(1) fibre core capacity
For the high capacity wavelength-division system, fibre distribution frame adopts into the fine way to manage of list (two) of (going out) fine fiber management tray, can accomplish that fiber management is easy, and cabling is attractive in appearance in the frame, safeguards easy construction.The fibre distribution frame basic tankage is considered, is advisable with 4 sub-framves by 40 ripples.Frame complete machine capacity 192 cores.The wide shelf structure of frame is advisable with 2200 (height) * 900 (wide) * 300 (thick).
(2) functional type
The equipment that fibre distribution frame is used as wavelength-division should have 4 basic functions.
1) fixed function
Optical patchcord turnover frame is divided into groups and is protected optical patchcord.
2) allotment function
Shown in Fig. 1 (a), the single core jumping fiber of equipment (WDM) side connector plug is received on the adapter, realize that with the plug of the single core jumping fiber of equipment (SDH) connector of adapter opposite side light path docks.
3) signaling transfer point
Shown in Fig. 1 (b), the single core jumping fiber of equipment (WDM) side connector plug is received on the adapter, the single core jumping fiber of opposite side equipment (SDH) connector plug is received on the adapter, middle by single core both-end jumping fiber connection.
4) memory management functions
The optical patchcord that enters (going out) ODF frame needs to make them rule fitly coil placement through advancing fibre (fiber) fiber management tray.In the fiber management tray suitable space and wire laying mode should be arranged, make this part light connecting line cabling clear, easy to adjust, and can satisfy the requirement of minimum bending radius.The fiber management tray face side should have shows a bar, shows optical fiber closure.
Before narration the utility model fiber optic distribution frame, earlier relevant word is defined: optical patchcord, promptly two ends all have the single fiber cable of optical fiber connector plug; Tail optical fiber, promptly one one end has the single fiber cable of optical fiber connector plug; Adapter, promptly the optical patchcord connector plug is realized the device that optical alignment is connected with the optical patchcord connector plug; The optical fiber trough promptly provides the single fiber cable of turnover frame and the protection passage of the interior jumping fiber of frame; Advance the optical fiber storage unit, promptly provide to enter the single fiber cable storage unit, form by fiber management tray; Go out the optical fiber storage unit, the single fiber cable storage unit promptly is provided away, form by fiber management tray; The optical fiber distributing unit, promptly by adapter, adapter deck, installing plate, assemble.
Shown in Fig. 2 (a)～(b), the fiber optic distribution frame of Shi Yonging (ODF) in typical case, bracket height is made up of 4 sub-framves 10 and optical fiber trough 20 usually by 2.2 meters considerations, and each sub-frame 10 is by entering optical fiber storage unit 11, optical fiber distributing unit 12, going out optical fiber storage unit 13 and form.Can be divided into two kinds of horizontal type and vertical formulas.
1) advance (going out) fine storage unit 11,13 and be made up of 24 twin-cores (or 48 single fibers) fiber management tray, as shown in Figure 3, fiber management tray 14, this fiber management tray 14 stay fiber reel long about 8 meters to stay the position for every optical fiber (diameter is 3.0mm) gives.Fiber management tray is a drawer type, is convenient to stay optical fiber at the box inner disc.Dish stays the radius-of-curvature of optical fiber to be not less than 40mm, in case increase optical loss.Enter (going out) fine storage unit front a high-visible bar that shows is housed, the personnel that maintain easily are to system maintenance.
2) optical fiber distributing unit 12 is made up of 48 adapters, is used for adaptive FC connector or SC type optical connector light path and connects, and its joint inserts loss must not be greater than 0.15dB.The optical fiber distributing unit can install and fix Optical attenuator, FC-SC converter etc. to adapt to the needs of switching and data service on adapter.
Shown in Fig. 4 (a)～(b), enter (going out) fine storage unit and optical fiber distributing unit 11,13,12, wherein: optical fiber distributing unit 12 is front and back upset block (horizontal type) or slidingtype block (vertical formula), so that plug-in connector neatly.
3) optical fiber trough
As shown in Figure 5, frame optical fiber trough 20 is an example with vertical formula, and into fine trough 21 (provide turnover optical fiber with) and fiber trough 22 (fiber is provided and transfers jumping fiber usefulness) are provided the optical fiber trough.Advancing fine trough 21 should provide turnover optical fiber 192 core capacity.For preventing that into fine cabling and fiber cabling from intersecting, optical fiber trough 20 reply fiber optic protections are to the fixedly colligation of optical fiber wire harness.
4) frame mechanical property
The mechanical activity part should be rotated flexibly, and the plug appropriateness is reliable and stable, construction and installation and easy to maintenance.The opening angle of door should be not less than 110 degree
The gap is not more than 2mm.Structure should be firm, and assembling should have consistance and interchangeability, the fastener non-loosening, expose with the lock seaming garden radius R of operating position must not be less than 2mm.
5) structure model selection
Fibre distribution frame adopts full-closed structure, the aluminium of should trying one's best alloy profile or steel construction frame, and its structure is more firm, and profile is also attractive in appearance.The gauge of frame should be identical with existing transmission equipment standard rack, arranges to make things convenient for machine room.Process of surface treatment and color also should be close with other equipment in the machine room, to keep the overall appearance in the machine room.
6) selection of the joints of optical fibre
Because performances such as SC/PC joints of optical fibre Insertion Loss, return loss, interchangeability, consistance are higher, and safe, reliable, easy to operate and packing density is bigger, so the WDM environment is recommended the preferential selection SC/PC joints of optical fibre down.
In sum, some problems that the utility model is primarily aimed at current ODF to be existed when using in the WDM environment have proposed corresponding solution, promptly the structure of existing ODF are carried out some improvement.Mainly be at the pairing tail optical fiber of each optical fiber linkage unit, all disposed corresponding storage unit.Adopt the ODF organization plan that this paper provided, can solve the capacity that exists when existing ODF uses under the WDM environment less, coil problem such as fine difficulty, the safe operation of wdm system and maintenance etc. are had significance.
Above embodiment is only for the usefulness that the utility model is described, but not to restriction of the present utility model, person skilled in the relevant technique, under the situation that does not break away from spirit and scope of the present utility model, can also make various conversion or variation, so all technical schemes that are equal to also should belong to category of the present utility model and should be limited by each claim.
Claims (5)
1. one kind is applicable to the fiber optic distribution frame under the wavelength-division multiplex environment, adopt full-closed structure, comprise experimental process frame, optical fiber trough, it is characterized in that: each sub-frame by be arranged in order advance the optical fiber storage unit, go out the optical fiber storage unit, the optical fiber distributing unit is formed, wherein:
Be made up of n twin-core or 2n single fiber fiber management tray into and out of fine storage unit, every optical fiber gives and stays fiber reel to stay the position;
The optical fiber distributing unit is made up of 2n the adapter that is used for adaptive light path connection, and the optical fiber distributing unit is front and back upset block or slidingtype block;
The fiber trough that advances fine trough and provide fiber, switching jumping fiber to use that provides turnover optical fiber to use is provided the optical fiber trough, and the both sides trough respectively is provided with 4 road vertical channels, provides turnover fine 4n core capacity.
2. a kind of fiber optic distribution frame that is applicable under the wavelength-division multiplex environment according to claim 1 is characterized in that: described fiber management tray is for ease of staying the drawer type of optical fiber at the box inner disc, and dish stays the radius-of-curvature of optical fiber more than or equal to 40mm.
3. a kind of fiber optic distribution frame that is applicable under the wavelength-division multiplex environment according to claim 1 is characterized in that: described being equipped with into and out of fine storage unit front shown a bar.
4. a kind of fiber optic distribution frame that is applicable under the wavelength-division multiplex environment according to claim 1 is characterized in that: described optical fiber distributing unit can install and fix Optical attenuator and converter for the needs that adapt to switching and data service on adapter.
5. a kind of fiber optic distribution frame that is applicable under the wavelength-division multiplex environment according to claim 1 is characterized in that: in described optical fiber trough to the fixedly colligation of described optical fiber wire harness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200905532U CN2758795Y (en) | 2004-09-28 | 2004-09-28 | Optical fibre distributing frame suitable for use under WDM environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200905532U CN2758795Y (en) | 2004-09-28 | 2004-09-28 | Optical fibre distributing frame suitable for use under WDM environment |
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| Publication Number | Publication Date |
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| CN2758795Y true CN2758795Y (en) | 2006-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2004200905532U Expired - Lifetime CN2758795Y (en) | 2004-09-28 | 2004-09-28 | Optical fibre distributing frame suitable for use under WDM environment |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338915A (en) * | 2011-08-29 | 2012-02-01 | 南京普住光网络有限公司 | Online test unit for optical main distribution frame (OMDF) on account of centralized optical measurement |
| CN103676043A (en) * | 2012-09-04 | 2014-03-26 | 湖北省电力公司孝感供电公司 | Connection method for quick optical path communication |
| CN104898245A (en) * | 2015-06-25 | 2015-09-09 | 国家电网公司 | Optical distribution frame |
| CN106526758A (en) * | 2016-12-29 | 2017-03-22 | 宁波市樱铭电子科技有限公司 | Optical fiber butting device |
| CN113671649A (en) * | 2021-08-24 | 2021-11-19 | 深圳市飞宇光纤系统有限公司 | Intensive wavelength division multiplexer capable of arranging and combing wires |
-
2004
- 2004-09-28 CN CNU2004200905532U patent/CN2758795Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338915A (en) * | 2011-08-29 | 2012-02-01 | 南京普住光网络有限公司 | Online test unit for optical main distribution frame (OMDF) on account of centralized optical measurement |
| CN103676043A (en) * | 2012-09-04 | 2014-03-26 | 湖北省电力公司孝感供电公司 | Connection method for quick optical path communication |
| CN104898245A (en) * | 2015-06-25 | 2015-09-09 | 国家电网公司 | Optical distribution frame |
| CN104898245B (en) * | 2015-06-25 | 2019-02-15 | 国家电网公司 | A kind of fibre distribution frame |
| CN106526758A (en) * | 2016-12-29 | 2017-03-22 | 宁波市樱铭电子科技有限公司 | Optical fiber butting device |
| CN113671649A (en) * | 2021-08-24 | 2021-11-19 | 深圳市飞宇光纤系统有限公司 | Intensive wavelength division multiplexer capable of arranging and combing wires |
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| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140928 Granted publication date: 20060215 |