CN100443939C - Optical fiber array connectivity system utilizing angle polished ferrules and aligned-key adapters and cable for same - Google Patents
Optical fiber array connectivity system utilizing angle polished ferrules and aligned-key adapters and cable for same Download PDFInfo
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- CN100443939C CN100443939C CNB2005800181646A CN200580018164A CN100443939C CN 100443939 C CN100443939 C CN 100443939C CN B2005800181646 A CNB2005800181646 A CN B2005800181646A CN 200580018164 A CN200580018164 A CN 200580018164A CN 100443939 C CN100443939 C CN 100443939C
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Abstract
A fiber optic ribbon (12) cable includes: a plurality of substantially parallel optical fibers (14) formed into a ribbon, the ribbon extending in a longitudinal direction and having first and second ends; and a termination assembly (15, 15') attached at each of the first and second ends of the ribbon. Each of the termination assemblies (15, 15') includes a body (18, 18') and a ferrule (22, 22'), the body having a key (26, 26') on an upper surface thereof. The ferrule has a polished contact surface (28, 28') that exposes ends of the optical fibers; the contact surface (28, 28') forms an oblique angle relative to a plane normal to axes defined by the fibers. The termination assemblies (15, 15') at the first and second ends of the ribbon (12) either both face slightly upwardly or both face slightly downwardly.
Description
Association request
The application advocates on June 4th, 2004 application, the denomination of invention right of priority for the U.S. Provisional Patent Application of " single-mode fiber array connected system " number 60/577,305.
Technical field
The present invention relates generally to fiber optic ribbon cable, connector, adapter and patch systems (patching system).
Background technology
Now, fiber optic universal is in the various signals that comprise communication and data-signal are transmitted.Optical fiber can be the single-mode fiber (being generally used for long haul communication) that only has strong communication mode, thereby or the light that wherein transmits with different mode arrives the multimode optical fiber that makes that transmission signals disperses with different time.
Single-mode fiber is via paired optical fiber transmission signals between transceiver (that is the device that can launch and receive light signal).Particularly, in pairs optical fiber wherein one will be from first transceiver to the second transceiver transmission signals, and in pairs optical fiber wherein another person will be from second transceiver to the first transceiver transmission signals.In this way, light signal can not advance in different directions (otherwise will cause between the signal interference) along same optical fiber.
This pairing is provided with permanent two transceiver devices that connect of organism optical very simple, but in practice, usually by huge optical fiber, connector, and the plugboard network connect transceiver.For example, a kind of universal optical system comprise at one end a plurality of transceivers, be connected to transceiver and be connected to the patch cord that is installed in the duplex adapters on the plugboard to, via array adaptor be connected to the duplex adapters fan-out unit (fan-out unit) of (it connects many fiber optic ribbon cable (being generally every with 12 optical fiber)), be connected to via second array adaptor ribbon cable the opposite end second fan-out unit and via patch cord to be connected to the corresponding transceiver of second fan-out unit by another duplex adapters.Therefore clearly, can be arranged in the single optical fiber in the various different devices and the path of the cable between the transceiver is important to guarantee that single transceiver connects as required.
Define optical fiber, cable, adapter, reach setting up standard of connector for guaranteeing the interaction of cable-assembly and signal polarity, having set up.For example, be applicable to that a kind of above-mentioned standard (TIA-604-5B) of array connector relates to the interaction of the MPO joints of optical fibre.The standard TIA 568-B.3 that another kind has by the proposal appendix of TR-42.8 council book relates to the polarity of keeping optical fiber by (the comprising MPO's) system that utilizes array connector and adapter.Four kinds of distinct methods setting up from the emitting side of a transceiver to the optical channel of the receiver side of another transceiver discussed in above-mentioned proposal appendix.A kind of being called the method for " method A " be intended to " connect a plurality of duplexing optical transceiver ports or be intended to connect two collimating optics transceiver port ... ".The system that utilizes method A to set up uses A type ribbon cable, A type adapter, A type converter and 568B.3 patch cord.
One of optical channel feature of method A is that array adaptor is " key upwards makes progress (keyup to key up) to key " or " alignment keys (aligned-key) " type adapter.This term refers to be positioned at the orientation of the kick (or " key ") on the terminal body of cable, make the user cable can be connected so that cable correctly is orientated (the cable of correct orientation is not understood alignment error optical fiber, and this will hinder the correct transmission to light signal) with respect to adapter.For array connector, the alignment keys adapter is not so good as standard " key makes progress to key downward (key up to key down) " or " key (opposed-key) relatively " adapter is traditional like that, still is defined as the acceptable replacement of " key selection k=2 (key option k=2) " in TIA-604-5B.Provide cable terminations in order to assist during manufacture, some array connectors (for example, comprise MPO's) on the main part of each terminal assembly, have " body mark (body mark) " (any visual indicia is generally the whitewash mark) to represent that how to be orientated cable is used for connecting.Traditionally, the body mark of array connector is positioned at the same side of (serve as a mark and be the optical fiber of " optical fiber 1 ") cable, and key under the situation of upper process when observing in the face of the exposed ends of optical fiber body mark will be positioned at the left side of main part.
One of them difficulty that " alignment keys " connection exists in method A is the actual contact angle between the optical fiber that engages.A lot of cables are with the sleeve pipe termination, and this sleeve pipe exposes the end of optical fiber of cable with another cable optical interconnection.In case the optical fiber of cable is inserted into and is bonded to sleeve pipe, the exposed ends of then polishing cable is transmitted in conjunction with the signal between the cable to improve.Both can carry out above-mentioned polishing (being known as " putting down " polishing) perpendicular to shaft axis of optic fibre, this adopts in multimode is used usually, also can carry out above-mentioned polishing (being known as " inclination " polishing (" angle " polishing)) with the small skew angle with respect to the axis of optical fiber, this adopts in single mode is used usually.Light taking place during the transmission by mistake from the risk of the end reflections of optical fiber because of it can reduce, adopts polishing so preferably single mode is used usually.But, relatively angled to the sleeve pipe sleeve pipe that the polishing requirement engages that tilts, wherein one inclined-plane must be slightly towards last both to have required the sleeve pipe that engages, and the inclined-plane of another sleeve pipe must face down slightly, to make these faces adjacency correctly for light transmission.Usually each sleeve pipe of array connector all can comprise ferrule mark (also can be some visual indicia such as coating mark or mold pressing mark usually), and this ferrule mark user to the termination cable before combination and polishing represents how to be orientated fibre ribbon in sleeve pipe.Usually, the side identical that ferrule mark is positioned at cable with above-mentioned optical fiber 1, and be in the side identical of cable with the connector body mark.This layout indication setter polishing surface in contact makes exposing under the fiber facet situation to the right when when having sleeve pipe side (its) the observation sleeve pipe of ferrule mark that the lower limb of sleeve pipe is ground off during polishing.In this routine termination was handled, the key on the connector body was towards last.
Because the above-mentioned requirement that is associated with method A, still have existing " alignment keys " that (a) engage with adapter and (b) be used for the inclination polished surface of cable sleeve pipe in, by the connection that conventional components can not be finished this method A arrange (in fact, the appendix of the TIA568-B.3 that proposes by TIA TR-42.8 illustrated " the whole connectors that are used among the method for attachment A all must be by flat polishing; Tilt the polishing connector can not by key upwards to key on connect ").Therefore, expect that a kind of optical system can satisfy the connection request of method A and meet other these structural requirements, guaranteeing single-mode behavior and polarity.
Summary of the invention
The present invention can make data communication system meet by the TIA568-B.3 appendix of 42.8 books of TIA TR connect polar requirement about array in, also provide the performance of improving of polishing termination simultaneously.As first aspect, embodiments of the invention relate to fiber optic ribbon cable.This cable comprises: form the parallel optical fiber of many cardinal principles of band, described band extends in a longitudinal direction and comprises first end and the second end; And at the terminal assembly of each place's attaching of the described first end of described band and the second end.Each described terminal assembly all comprises main body and sleeve pipe, and described main body surface thereon has key, and described sleeve pipe has the polishing surface in contact of the end that exposes described optical fiber.Described surface in contact forms with respect to the oblique angle perpendicular to the plane of the axis that is defined by described optical fiber; Perhaps (a) each surface in contact is all slightly towards last, and perhaps (b) each surface in contact all faces down slightly.This setting provides the alignment keys of optical fiber or " key upwards makes progress to key " has been engaged, and also allows optical fiber to be tilted polishing simultaneously.
As second aspect, embodiments of the invention relate to data communication system, comprising: first transceiver and second transceiver; First fan-out unit and second fan-out unit; First adapter and second adapter that are connected with described first fan-out unit and described second fan-out unit; And ribbon trunk cable.Each fan-out unit all comprises multifiber.Described first fan-out unit pair is connected with described first transceiver via first optical fiber optically, and fast second fan-out unit of institute pair is connected with described second transceiver via second optical fiber optically.In described first fan-out unit and described second fan-out unit each also comprises the sleeve pipe with polishing surface in contact, described surface in contact exposes the end of described multifiber, and described surface in contact is with respect to the plane bevel perpendicular to the axis of described optical fiber.Each of the termination bodies of described first fan-out unit and described second fan-out unit comprises that all the surface is to the key of upper process from it.Described ribbon trunk cable comprises: form the parallel optical fiber of many cardinal principles of band, described band extends in a longitudinal direction and comprises first end and the second end; Locate the terminal assembly of attaching at the described first end of described band and each of the second end, each described terminal assembly all comprises main body and sleeve pipe, described main body surface thereon has key, and described sleeve pipe has the polishing surface in contact of the end that exposes described optical fiber.Described surface in contact forms with respect to the oblique angle perpendicular to the plane of the axis that is defined by described optical fiber.The described terminal assembly of the described first end of described trunk cable is connected to described first adapter, and the described terminal assembly of the described the second end of described trunk cable is connected to described second adapter.Perhaps each sleeve pipe surface in contact of (a) described ribbon trunk cable is all slightly towards last, and perhaps each surface in contact of (b) described ribbon trunk cable all faces down slightly.
Description of drawings
Figure 1A is the schematic plan of the embodiment of ribbon cable of the present invention.
Figure 1B is the side view of the ribbon cable of Figure 1A.
Fig. 2 is the perspective view of array adaptor that can be used for the ribbon cable of Figure 1A.
Fig. 3 A is the schematic plan of embodiment of fan-out unit that is used for the ribbon cable of Figure 1A.
Fig. 3 B is the side view of the fan-out unit of Fig. 3 A.
Fig. 4 A is the schematic plan of data transmission system that adopts the ribbon cable of Figure 1A.
Fig. 4 B is the part side view that is connected between the fan-out unit of end and Fig. 3 A of ribbon cable of Figure 1A.
Fig. 5 is the substituting schematic plan of data transmission system that adopts the ribbon cable of Figure 1A.
Embodiment
Now describe the present invention in more detail, wherein show the preferred embodiments of the present invention following.But the present invention can multi-form enforcement and be should not be construed as and be limited to listed embodiment here.On the contrary, provide the purpose of these embodiment to be to make the more thorough complete of content illustration, and can disclose the present invention fully to those skilled in the art.In the accompanying drawings, similarly label is represented similar elements in the whole text, and for the sake of clarity, can exaggerate to the thickness in line, layer and zone.
It should be understood that when element be described to be in another element it " on " time, it can directly place on another element or also can be separated with other elements at middle ware.On the contrary, when element be described " directly " be in another element it " on " time, do not have other elements to get involved therebetween.It should be understood that when element is described " connection " or " attaching " to another element it can directly connect or be attached to other elements or also can be separated with other elements at middle ware.On the contrary, when element is described " directly connection " or " directly attaching " to another element, there are not other elements to get involved therebetween.Here, term " and/or " comprise relevant list project one or more arbitrarily and whole combinations.
Description has illustrated in Figure 1A and Figure 1B totally by 10 fiber optic ribbon cable of representing.Cable 10 comprises with 12 and at the terminal assembly 15,15 ' with 12 two ends.Below will describe these parts in detail.
With reference to Figure 1A and Figure 1B, be with 12 to comprise 12 optical fiber 14 again, every optical fiber all has core and protection coating.Optical fiber 14 is with 12 with parallel arrangement with formation.For clarity sake, usually the optical fiber of being with is called optical fiber 1 separately, optical fiber 2 or the like; Being with in 12 of illustrating, optical fiber 1 is the top edge of the most close Figure 1A, and optical fiber 2 is positioned at below adjacent fiber 1, and by that analogy, and optical fiber 12 is the optical fiber of below among Figure 1A.Other that are relevant to optical fiber 14 are advised approximately and are comprised color or the like at TIA/EIA-598, illustrate in " Optical Fiber Cable Color Coding ".
The structure of typical optical fiber and composition are known to those skilled in the art, here will not be described in detail.In certain embodiments, optical fiber is single-mode fiber.Example fiber comprises that commodity are called TeraSPEED
TMOptical fiber, can be from Texas, the SYSTIMAX in the gloomy city of Richard
Solutions company buys.
Those skilled in the art understands the band that also can adopt different structure.For example, can use the have varying number optical fiber band of (being generally 6 and 8 fibre ribbons).
Then with reference to Figure 1A and Figure 1B, terminal assembly 15 comprises the sleeve pipe 22 that is attached to 12, the sheath 16 that is attached to the main body 18 of sleeve pipe 22 and is attached to main body 18.The structure of sheath 16, main body 18 and sleeve pipe 22 and interconnection are known to those skilled in the art, here do not need to be described in greater detail.
Refer again to Figure 1A and Figure 1B, sleeve pipe 22 comprises surface in contact 28, and surface in contact 28 exposes the optical fiber that engages in attachment with optical fiber 14.Towards last, FS is angled with respect to the plane slightly for surface in contact 28, this plane FS and the axis normal that is in the optical fiber 14 of angle [alpha].Usually angle [alpha] is in about 5 degree between 15 degree, for example, is 8 degree at the TIA-604-5B special angle that is used for the MPO connector.
Still with reference to Figure 1A and Figure 1B, main body 18 comprises the alignment keys 26 that is on its top surface.Main body 18 also can comprise body mark 20 (similar with the MPO connector that schematically shows) in Figure 1A, body mark 20 shows that to the operator correct orientation of main body 18 and sleeve pipe 20 is so that assembling.In the illustrated embodiment, on the side identical that body mark 20 is in five equilibrium surface BS (it is five equilibrium main body 18 and sleeve pipe 22 vertically) with above-mentioned optical fiber 1.Body mark 20 can be that any those skilled in the art think and are suitable for showing visual indicia (such as the coating mark) to the correct orientation of terminal assembly 15.
Still with reference to Figure 1A and Figure 1B, the sleeve pipe 22 that illustrates comprises optional ferrule mark 24 (as the MPO connector), and it makes the definite correct orientation to optical fiber 14 and sleeve pipe 22 of operator during surface in contact 28 polishings.Ferrule mark 24 is positioned on the sleeve pipe 22, is positioned on the side with respect to body mark 20 1 sides of five equilibrium surface BS, that is, be positioned on the side identical with optical fiber 12.The operator can insert sleeve pipes 22 with optical fiber 14, on the side identical with ferrule mark 24 that makes that optical fiber 12 is positioned at sleeve pipe 22 (this is different from the insertion of existing fiber).And this position of ferrule mark 24 shows that the operator will form surface in contact 28 to the polishing of tilting of the end of optical fiber 14, makes its inclination or slightly towards last.
With reference to Figure 1A and Figure 1B, terminal assembly 15 ' comprises sheath 16 ', main body 18 ' and the sleeve pipe 22 ' with terminal assembly 15 structural similarities again.Particularly, key 26 ' is to upper process, and when optical fiber 14 when sleeve pipe 22 ' is located termination, inclination surface in contact 28 ' slightly towards last and with the angled α ' of planar shaped perpendicular to the axis of optical fiber 14 (it is in sleeve pipe 22 ' termination).Difference between terminal assembly 15 ' and the terminal assembly 15 comprises that (a) body mark 20 ' is arranged in the side corresponding to optical fiber 12 with 12, and (b) ferrule mark 24 ' (if being comprised by the MPO connector) is arranged in the side corresponding to optical fiber 1 with 12.These layouts make body mark 18,18 ' be positioned at on 12 the opposite side (promptly, at five equilibrium plane BS and key 26, on 26 ' the opposite side), and make ferrule mark 24,24 ' also is positioned at on 12 the opposite side, makes that sleeve pipe and the body mark on each end that is positioned at cable 10 is positioned on the opposite side of its each terminal assembly 15,15 '.
Refer now to Fig. 2, wherein show totally by the 30 MPO adapters of representing.Adapter 30 comprises the opening 31 that passes it.Keyway 32 also extends through adapter 30 and adjacent openings 31, and the size of definite keyway 32 and it is configured to receive from each key 26,26 ' of cable 10 and from the engagement keys such as the miscellaneous part of fan-out unit.Lock 34 extends slightly into opening and answers terminal assembly 15,15 ' with joint and stationary phase.The schematic MPO adapter and other array adaptors that are applicable to embodiments of the invention are known to those skilled in the art, here will its structure and material be described in detail.Described schematic MPO array adaptor 30 in TIA-604-5B, wherein the alignment keys example is described to " key is selected k=2 ".
Refer now to Fig. 3 A and Fig. 3 B, totally be expressed as 36 fan-out unit and comprise band portion 38, this band portion 38 comprises optical fiber 39, Transmission Part 54, terminal assembly 37 and monofiber connector 56a-561.Band portion 38 extends between terminal assembly 37 and Transmission Part 54; Initial from Transmission Part 54, optical fiber 39 in terminating at each single optical fiber connector 56a-561 before separately or in pairs " fan ".Paired optical fiber 39 is followed the agreement that is defined in the appendix that is proposed by TIA TR-42.8 to TIA568-B.3 and is confirmed as method A, and for example optical fiber 1 and 12 is paired, and optical fiber 2 and 11 is paired, and is paired until optical fiber 6 and 7 by that analogy.Also described paired setting in the U.S. Patent number 6,785,600 that is issued to people such as Del Grosso, here its integral body is incorporated into its content in this instructions by reference.
Except band portion 38, sleeve pipe 46, tilt polishing and main body 42 by the conventional termination, as above-mentioned, terminal assembly 37 comprises sheath 40, main body 42 and the sleeve pipe 46 in conjunction with cable 10; In at schematic MPO connector, (a) body mark 44 and ferrule mark 48 are positioned on the same side of band portion 38, and are positioned on the same side of optical fiber 1, although and (b) key 50 from sleeve pipe 46 to upper process, the inclination surface in contact 52 of sleeve pipe 46 faces down slightly.As described below, this orientation of surface in contact 52 makes the terminal assembly 37 of fan-out unit 36 engage with the terminal assembly 15 of cable 10.
It will be appreciated by those skilled in the art that the structure of the fan-out unit 36 of the band portion 38 that comprises, Transmission Part 54, terminal assembly 37 and single optical fiber connector 56a-561.Exemplary fan-out unit can be from Texas, the SYSTIMAX in the gloomy city of Richard
Solutions company is commercially available.
Fig. 4 A shows the data transmission system 60 of two identical fan-out unit 36 that adopt cable 10, two array adaptors 30 and the above-mentioned type.System 60 also comprises the transceiver 66,66 ' (two transceivers for the sake of clarity only are shown) of the remote end part that several are positioned at system 60.Transceiver 66,66 ' can be the device that sends and receive optical data on fiber optic network of any amount, comprises computing machine, phone, server and router.Each transceiver 66,66 ' all with corresponding paired existing TIA/EIA-568-B.3 compliant patch cords 64,64 ' is connected.Patch cord 64,64 ' successively with two duplex adapters 62,62 ' one in port be connected, it should be appreciated by those skilled in the art that its structure and function.The single optical fiber connector 56a-561 of each fan-out unit 36 inserts as mentioned above and is shown in each paired duplex adapters 62,62 ' among Fig. 4 A and Fig. 4 B.At its opposed end, the second identical fan assembly 36 is via each terminal assemblies 15,15 ' that are connected to cable 10 in the array adaptor 30.
Shown in Fig. 4 A and Fig. 4 B, the terminal assembly 15 of fan-out unit 36 and cable 10, the connection between 15 ' is " key upwards makes progress to key ", this meets the requirement of the TIA 568-B.3 appendix that is proposed by TIA TR-42.8, and is confirmed as method A.But by creationary structure, the surface in contact 28,28 ' towards last terminal assembly 15,15 ' can cooperate with the surface in contact 52 of prone slightly fan-out unit 36 slightly.The cooperation of these inclined surfaces provides and has been better than non-inclination usually (promptly, flat) surface in contact is to the transmission mode of optical data, and by to " key upwards makes progress to key " orientation of the termination bodies 42 of the termination bodies 18,18 ' of cable 10 and fan-out unit 36 and realization aforesaid way (seeing Fig. 4 B).It is noted that terminal assembly 15, any one in 15 ' all can be connected with in the fan-out unit 36 any one, and still can operate.
By connecting transceiver 66 in pairs, the transmission channel of arranging between 66 ' can provide correct connection for optical signalling by verification system 60 really.Refer now to Fig. 4 A, the optical signalling that begins from the transport part Tx of transceiver 66 will be advanced and be arrived duplex adapters 62 by the patch cord 64 that indicates " optical fiber 12 ".This signal carries out entering by signal optical fibre connector 56b the optical fiber 12 of fan assembly 36 then, and it is passed to array adaptor 30 with this signal.In this position, signal transfers to the optical fiber of aiming at optical fiber 12 fan assembly 36 1 cable 10 by terminal assembly 15.Signal transfers to terminal assembly 15 ' by cable 10 in optical fiber 1, by second array adaptor 30, and enter second fan-out unit 36, and here signal transfers to its optical fiber 1.Then, this signal transmits in the optical fiber 1 of second fan-out unit 36, to 64 ' optical fiber 1, and enters the acceptance division Rx of transceiver 66 ' by single optical fiber connector 56a, duplex adapters 62 ', patch cord.Thus, signal correctly transfers to the acceptance division of transceiver 66 ' from the emission part of transceiver 66.
Still with reference to figure 4A, can form the parallel transmission path by the acceptance division Rx from the emission part Tx of transceiver 66 ' to transceiver 66 '.Particularly, signal is advanced from the emission part Tx of transceiver 66 ', by patch cord to 64 ' optical fiber 12, enter the optical fiber 12 of second fan-out unit 36 by duplex adapters 62 ', enter the optical fiber 12 of cable 10 by second array adaptor 30, by first array adaptor 30 and enter the optical fiber 1 of first fan-out unit 36, and enter patch cord enters transceiver 66 with transmission to 64 optical fiber 1 acceptance division Rx by duplex adapters 62.Therefore, can see that signal suitably transfers to the acceptance division Rx of transceiver 66 from the emission part Tx of transceiver 66 '.
Those skilled in the art it can also be appreciated that cable 10 can construct like this: promptly can will be with 12 to be orientated to surface in contact 28 is faced down slightly at key 26 during still to upper process, but not make sleeve pipe 22,22 ' surface in contact 28 be slightly towards last.This change can be adopted the fan-out unit 36 with key and surface in contact, this surface in contact when key 50 extends upward slightly towards on.
Fig. 5 shows the overall another kind of systems by 100 expressions that can adopt cable of the present invention.System 100 comprises that structure is similar to the ribbon trunk cable 110 of above-mentioned cable 10." alignment keys " array adaptor 120,120 ' is connected to each end of cable 110.So banded patch cord 130,130 ' is connected to array adaptor 120,120 ', and then can be connected to array transceivers.The structure of the terminal assembly 115,115 ' of ribbon trunk cable 110 is identical with the structure of above-mentioned cable 10, and the terminal assembly 135 of array patch cord 130 is identical with the structure of the terminal assembly 50 of above-mentioned fan-out unit 36.Like this, by the inclination polishing fiber, cable 110 is used with patch cord 130,130 ' desirable " key upwards makes progress to key " connection.
It will be apparent to one skilled in the art that other data communication systems also can adopt the ribbon trunk cable with alignment keys adapter of the present invention.Exemplary alternative system comprises the array connector of reinforcing to single optical fiber fan part, replaces the fan-out unit 36 and 36 ' shown in Fig. 4 A, duplex adapters 62 and 62 ' and duplexing patch cord 64 and 64 '.
Above-mentionedly should not be interpreted as its restriction for explanation of the present invention.Although described exemplary embodiment of the present invention, those skilled in the art will readily appreciate that can multiple modification be arranged to exemplary embodiment and do not break away from the instruction and the advantage of novelty of the present invention in fact.Therefore, all such modifications all are intended to be included in the scope of the present invention that is defined by claim.The present invention is defined by claims, in the equivalent of claim is also contained in.
Claims (10)
1. data communication system comprises:
First transceiver and second transceiver;
First fan-out unit and second fan-out unit, its each all comprise multifiber, wherein, described first fan-out unit pair is connected with described first transceiver optically via first optical fiber, and described second fan-out unit pair is connected with described second transceiver optically via second optical fiber, in described first fan-out unit and described second fan-out unit each also comprises termination bodies and has the sleeve pipe of polishing surface in contact, described polishing surface in contact exposes the end of described multifiber, described surface in contact is with respect to the plane bevel perpendicular to the axis of described optical fiber, and each of the termination bodies of described first fan-out unit and described second fan-out unit comprises that all the surface is to the key of upper process from it;
First adapter and second adapter, wherein said first adapter links to each other with the sleeve pipe of described first fan-out unit, and this second adapter links to each other with described second sleeve pipe that scatters the unit; And
Ribbon trunk cable, it comprises: form the parallel optical fiber of many cardinal principles of band, described band extends in a longitudinal direction and comprises first end and the second end; And at the terminal assembly of each place's attaching of the described first end of described band and the second end, each described terminal assembly all comprises main body and sleeve pipe, the main body of described terminal assembly surface thereon has key, the sleeve pipe of described terminal assembly has the polishing surface in contact of the end of the optical fiber that exposes described ribbon trunk cable, the surface in contact of wherein said terminal assembly is with respect to the plane bevel perpendicular to the axis of the optical fiber of described trunk cable
The described terminal assembly of the described first end of wherein said trunk cable is connected to described first adapter, and the described terminal assembly of the described the second end of described trunk cable is connected to described second adapter, and
Wherein, perhaps the surface in contact of each sleeve pipe of (a) described ribbon trunk cable is all slightly towards last, and perhaps the surface in contact of each sleeve pipe of (b) described ribbon trunk cable all faces down slightly.
2. data communication system as claimed in claim 1 is characterized in that, it is right that the described optical fiber of each described fan-out unit all is separated into, and the optical fiber of wherein said fan-out unit is by inboard pairing successively laterally.
3. data communication system as claimed in claim 2 is characterized in that, each described fan-out unit all comprises even number root optical fiber, and described trunk cable comprises identical even number root optical fiber.
4. data communication system as claimed in claim 1, it is characterized in that, outermost optical fiber in the multifiber of each described fan-out unit is expressed as optical fiber 1, another outermost optical fiber in the multifiber of described fan-out unit is expressed as optical fiber n, and the outermost optical fiber of described ribbon trunk cable is expressed as optical fiber 1 and optical fiber n, and the optical fiber 1 of wherein said trunk cable is connected with the optical fiber n of described first fan-out unit and the optical fiber 1 of described second fan-out unit optically, and the optical fiber n of wherein said trunk cable is connected with the optical fiber 1 of described first fan-out unit and the optical fiber n of described second fan-out unit optically.
5. data communication system as claimed in claim 2 is characterized in that, the described optical fiber of described trunk cable is single-mode fiber.
6. data communication system as claimed in claim 1 is characterized in that, described first adapter and described second adapter are the alignment keys array adaptor.
7. data communication system as claimed in claim 1, it is characterized in that, described first transceiver is connected via duplexing alignment keys adapter with described first fan-out unit, and described second transceiver is connected with described second fan-out unit via duplexing alignment keys adapter.
8. data communication system as claimed in claim 1 is characterized in that, the described surface in contact of the sleeve pipe of described trunk cable and perpendicular to the described oblique angle between the described plane of the axis of the optical fiber of described trunk cable between 5 degree are spent with 15.
9. data communication system as claimed in claim 1 is characterized in that, the described surface in contact of the sleeve pipe of described trunk cable and be 8 degree perpendicular to the described oblique angle between the described plane of the axis of the optical fiber of described trunk cable.
10. data communication system as claimed in claim 1, it is characterized in that, the described terminal assembly that is positioned at the described first end of described band also comprises first body mark and first ferrule mark on the relative both lateral sides of the described key that is positioned at described trunk cable, and the described terminal assembly that is positioned at the described the second end of described band also comprises second body mark and second ferrule mark on the relative both lateral sides of the described key that is positioned at described trunk cable, and wherein said first body mark and described second body mark are located on the relative both lateral sides of described key of described trunk cable.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US57730504P | 2004-06-04 | 2004-06-04 | |
| US60/577,305 | 2004-06-04 | ||
| US10/920,102 | 2004-08-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1973229A CN1973229A (en) | 2007-05-30 |
| CN100443939C true CN100443939C (en) | 2008-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800181646A Active CN100443939C (en) | 2004-06-04 | 2005-06-02 | Optical fiber array connectivity system utilizing angle polished ferrules and aligned-key adapters and cable for same |
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| Country | Link |
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| CN (1) | CN100443939C (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1039323A1 (en) * | 1999-03-23 | 2000-09-27 | W.L. GORE & ASSOCIATES | Ferrule for optical fibres |
| US20030072537A1 (en) * | 2001-02-20 | 2003-04-17 | Jerome Eichenberger | Optical interface for 4-channel opto-electronic transmitter-receiver |
| US20040042733A1 (en) * | 2002-03-04 | 2004-03-04 | Keith Kang | Method and system for insertion of fibers of a fiber cable into a ferrule |
-
2005
- 2005-06-02 CN CNB2005800181646A patent/CN100443939C/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1039323A1 (en) * | 1999-03-23 | 2000-09-27 | W.L. GORE & ASSOCIATES | Ferrule for optical fibres |
| US20030072537A1 (en) * | 2001-02-20 | 2003-04-17 | Jerome Eichenberger | Optical interface for 4-channel opto-electronic transmitter-receiver |
| US20040042733A1 (en) * | 2002-03-04 | 2004-03-04 | Keith Kang | Method and system for insertion of fibers of a fiber cable into a ferrule |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1973229A (en) | 2007-05-30 |
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