CN204439905U - A kind of MPO/MTP boundling prefabricated optical cable assembly - Google Patents
A kind of MPO/MTP boundling prefabricated optical cable assembly Download PDFInfo
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- CN204439905U CN204439905U CN201520119334.0U CN201520119334U CN204439905U CN 204439905 U CN204439905 U CN 204439905U CN 201520119334 U CN201520119334 U CN 201520119334U CN 204439905 U CN204439905 U CN 204439905U
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Abstract
The utility model discloses a kind of MPO/MTP boundling prefabricated optical cable assembly, it comprises: adapter assembly, and its both ends open is also formed through inner chamber, is provided with guide part in the middle part of this inner chamber, and the both sides of this guide part are respectively equipped with seal; First plug body assembly, it is located at outside the first described joints of optical fibre, and its one end being positioned at described first joints of optical fibre head is provided with opening, and the head end of first joints of optical fibre is exposed; Second plug body assembly, it is located at outside the second described joints of optical fibre, and its one end being positioned at described second joints of optical fibre head is provided with opening, and the head end of second joints of optical fibre is exposed; The open end of described first plug body assembly and the open end of the second plug body assembly is corresponding with the seal in adapter assembly respectively connects; The head of first joints of optical fibre is aimed at the head of second joints of optical fibre and is coupled in the guide part of adapter assembly, plays the effect of dustproof and waterproof.
Description
Technical field
The utility model relates to optical transport technology field, is specifically related to a kind of MPO/MTP boundling prefabricated optical cable assembly.
Background technology
MPO be Japanese NTT company to the appellation of bundling optical fiber connector, MTP is that USCONEC company of the U.S. is to the appellation of bundling optical fiber connector.The principle of work of both MPO with MTP is identical and can be compatible, and difference has 2 points: one be the spring of MPO plug inside is circular structure, and the spring of MTP plug inside is elliptical configuration; Two is MPO public plug guide pin tops is conical, and MTP public plug guide pin top is rugby shape.
The principle of work of MPO/MTP bundling optical fiber connector is: the T-shaped aptamers of MPO/MTP public plug firmly inserts plug after aiming at the T-shaped adaptive groove of any end face in MPO/MTP adapter two ends, hear " " the sound medial surface that is the left and right sides card leg of the T-shaped adaptive groove inside of adapter fastened the groove of the T-shaped aptamers both sides of MPO/MTP public plug, public plug sheath is because the effect of spring is by the locking of the lateral surface of the left and right sides card leg of T-shaped for adapter adaptive groove inside parcel simultaneously, cannot pull-off after public plug is coupled with adapter.Equally, on MPO/MTP female, T-shaped aptamers firmly inserts plug after aiming at the T-shaped adaptive groove of MPO/MTP adapter other end, hear " " the sound medial surface that is the left and right sides card leg of the T-shaped adaptive groove inside of adapter fastened the groove of MPO/MTP female T word guide way both sides, female sheath is because the effect of spring is by the locking of the lateral surface of the left and right sides card leg of T-shaped for adapter adaptive groove inside parcel simultaneously, cannot pull-off after female is coupled with adapter.In coupling process, due to the location of the T-shaped adaptive groove of adapter, the guide pin automatic search on public plug end face is aimed at the shrinkage pool on female end face and is formed coupling.The T-shaped adaptive groove at adapter two ends is reverse.
The MPO/MTP boundling prefabricated optical cable assembly of prior art or carry out optical signal transmission connection between indoor communication device, does not possess the anti-towing performance of shockproof dustproof and waterproof; A guard shield is increased simply by public plug shell and the clamping of female shell half-twist outside MPO/MTP plug, though possessed certain dustproof and waterproof performance, but Adapter Property difference causes optical transmission loss large between plug, the phenomenon that automatically gets loose easily is there is when jolting and shake, optical signal transmission structural instability, unreliable.
Along with large data, cloud computing widespread use; bundling optical fiber transmits in communication out of doors day by day universal; outdoor for communication base station, intelligent grid, space flight, aviation, electronic radar, Field Vehicle, naval vessel etc., jolt, the occasion light signal dense transfers such as harsh and the feature that is connected fast, in the urgent need to a kind of Novel seismic-proof, dustproof and waterproof, anti-towing protection, be with the MPO/MTP boundling prefabricated optical cable assembly of Function Identification to realize.
Utility model content
The purpose of this utility model is to provide a kind of MPO/MTP boundling prefabricated optical cable assembly; it has shockproof, dustproof and waterproof, anti-towing protection with Function Identification, can realize optical cable plug and play, bear long-time outdoor construction, the environment of resistance to pitch and anti-mis-insertion and connect.
In order to achieve the above object, the utility model is achieved through the following technical solutions:
A kind of MPO/MTP boundling prefabricated optical cable assembly, it comprises: afterbody presets first joints of optical fibre of the first optical cable, and afterbody presets second joints of optical fibre of the second optical cable, the head of described first joints of optical fibre is aimed at the head of second joints of optical fibre and is coupled to form optical transmission chain; It is characterized in that, described prefabricated optical cable assembly also comprises:
Adapter assembly, its both ends open is also formed through inner chamber, is provided with guide part in the middle part of this inner chamber, and the both sides of this guide part are respectively equipped with seal;
First plug body assembly, it is located at outside the first described joints of optical fibre, and its one end being positioned at described first joints of optical fibre head is provided with opening, and the head end of first joints of optical fibre is exposed;
Second plug body assembly, it is located at outside the second described joints of optical fibre, and its one end being positioned at described second joints of optical fibre head is provided with opening, and the head end of second joints of optical fibre is exposed;
The open end of described first plug body group is corresponding with the seal of described adapter assembly one end to be connected, and the open end of described second plug body assembly is corresponding with the seal of the described adapter assembly other end to be connected; The head of first joints of optical fibre is aimed at the head of second joints of optical fibre and is coupled in the guide part of adapter assembly, in first joints of optical fibre and second joints of optical fibre are wrapped in shell that adapter assembly, the first plug body assembly and the second plug body assembly be connected to form.
Above-mentioned MPO/MTP boundling prefabricated optical cable assembly, wherein, the first described plug body assembly comprises:
Lock pin, its head has one for installing the opening of described first joints of optical fibre, the end face of this head opening and the seal of described adapter assembly one end suitable;
Self-locking casing assembly, it is set in outside described lock pin, and its afterbody is connected with the afterbody of described lock pin; Between the inside surface of described self-locking casing assembly and the outside surface of described lock pin, there is interval, forming the spatia for holding described adapter assembly one end open; The inside surface of described self-locking casing assembly is corresponding with the outside surface of described adapter assembly one end open to be connected.
Above-mentioned MPO/MTP boundling prefabricated optical cable assembly, wherein, the first described plug body assembly also comprises:
First hand-held handle, it is set in outside the first described optical cable, and its head is connected with the tailing screw flight of described lock pin, smears screw thread glue respectively on the screw thread of described lock pin afterbody and on the screw thread of the first hand-held handle head.
Above-mentioned MPO/MTP boundling prefabricated optical cable assembly, wherein, the first described plug body assembly also comprises:
First fixing sleeve, it is set in outside the first described optical cable, its head is connected with the tailing screw flight of the described first hand-held handle, smear screw thread glue respectively on the screw thread of described first fixing sleeve head and on the screw thread in the first hand-held handle tail portion, between the afterbody and the first optical cable of described first fixing sleeve, pour into the special seal gum of electronic product.
Above-mentioned MPO/MTP boundling prefabricated optical cable assembly, wherein,
The crust of the first optical cable in described first hand-held handle and the first fixing sleeve is solidified.
Above-mentioned MPO/MTP boundling prefabricated optical cable assembly, wherein,
The outside surface of described adapter assembly one end open is provided with external thread;
Described self-locking casing assembly comprises:
Rotational shell, it is set in outside described lock pin, and its inside surface is provided with the internal thread suitable with the external thread of described adapter assembly one end open;
Self-locking mechanism, it is set in the afterbody of described lock pin and is connected with described rotational shell, and described rotational shell can only be rotated along a direction, on the contrary self-locking.
Above-mentioned MPO/MTP boundling prefabricated optical cable assembly, wherein,
The outside surface of the lock pin of described first plug body assembly is provided with key mapping;
The inside surface of described adapter assembly one end open is provided with keyway, so that lock pin location when inserting.
Above-mentioned MPO/MTP boundling prefabricated optical cable assembly, wherein,
The second described plug body assembly is identical with the first described plug body modular construction;
Other end opening and the second described plug body assembly of described adapter assembly are suitable.
Above-mentioned MPO/MTP boundling prefabricated optical cable assembly, wherein,
Described first plug body assembly also comprises: be located at first gland bonnet that its opening can shirk installation;
Described second plug body assembly also comprises: be located at second gland bonnet that its opening can shirk installation;
Described adapter assembly also comprises: be located at the 3rd gland bonnet that its one end open can be shirked installation, and is located at the 4th gland bonnet that its other end opening can shirk installation.
Above-mentioned MPO/MTP boundling prefabricated optical cable assembly, wherein,
The first described plug body assembly is provided with the first identified component;
The second described plug body assembly is provided with the second identified component;
Described adapter assembly is provided with the 3rd identified component.
The utility model compared with prior art has the following advantages:
1, overall volume is little, and it is convenient to install;
2, all there is when adapter assembly, the first plug body assembly and the second plug body assembly independently use or be combined shockproof, dustproof and waterproof, anti-towing protection and identification function;
3, realize optical cable plug and play, bear long-time outdoor construction, the environment of resistance to pitch, and effectively prevent from mispluging operation;
4, applicability is strong, supports single mode and multimode optical fiber, meets from the even more bundling optical fiber transmission requirement of 2 core ~ 24 cores simultaneously, ensures Optical Fiber Transmission performance.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present utility model;
Fig. 2 is example structure schematic diagram of the present utility model;
Fig. 3 is example structure schematic diagram of the present utility model;
Fig. 4 is the example structure schematic diagram of adapter assembly of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the utility model is further elaborated.
A kind of MPO/MTP boundling prefabricated optical cable assembly, it comprises: afterbody presets first joints of optical fibre 4 of the first optical cable 41, and afterbody presets second joints of optical fibre of the second optical cable, the described head of first joints of optical fibre 4 is aimed at the head of second joints of optical fibre and is coupled to form optical transmission chain, in the present embodiment, the first described joints of optical fibre 4 are MPO/MTP male, the second described joints of optical fibre are MPO/MTP female, and described MPO/MTP male and female end all comprise T-shaped aptamers.
As shown in Fig. 1,2,4, described prefabricated optical cable assembly also comprises: adapter assembly 3, its both ends open 31,32 is also formed through inner chamber, guide part 33 is provided with in the middle part of this inner chamber, the both sides of this guide part 33 are respectively equipped with seal 331,332, in the present embodiment, described guide part 33 be two ends T-shaped adaptive groove in the same way to ensure the positioning datum of male and female, described seal 331,332 is O-ring seal; First plug body assembly 1, it is located at outside the first described joints of optical fibre 4, and its one end being positioned at described first joints of optical fibre 4 head is provided with opening, and the head end of first joints of optical fibre 4 is exposed; Second plug body assembly 2, it is located at outside the second described joints of optical fibre, and its one end being positioned at described second joints of optical fibre head is provided with opening, and the head end of second joints of optical fibre is exposed; The open end of described first plug body assembly 1 is corresponding with the seal 331 of described adapter assembly one end to be connected, and the open end of described second plug body assembly 2 is corresponding with the seal 332 of the described adapter assembly other end to be connected; The head of first joints of optical fibre 4 and the head of second joints of optical fibre are aimed at and are coupled in the guide part 33 of adapter assembly, in first joints of optical fibre 4 and second joints of optical fibre are wrapped in shell that adapter assembly 3, first plug body assembly 1 and the second plug body assembly 2 be connected to form, play the effect of dustproof and waterproof.
As shown in Figure 2,3, the first described plug body assembly 1 comprises: lock pin 11, and its head has one for installing the opening of described first joints of optical fibre 4, the open end of this head and the seal 331 of described adapter assembly one end suitable, in the present embodiment, this opening is T-shaped adaptive groove; Self-locking casing assembly, it is set in outside described lock pin 11, and its afterbody is connected with the afterbody of described lock pin 11; Between the inside surface of described self-locking casing assembly and the outside surface of described lock pin 11, there is interval, forming the spatia for holding described adapter assembly one end open 31; The inside surface of described self-locking casing assembly is corresponding with the outside surface of described adapter assembly one end open 31 to be connected.
The first described plug body assembly 1 also comprises: the first hand-held handle 13, it is set in outside the first described optical cable 41, its head is connected with the tailing screw flight of described lock pin 11, screw thread glue is smeared respectively, to play the effect of antidetonation dustproof and waterproof on the screw thread of described lock pin 11 afterbody and on the screw thread of the first hand-held handle 13 head.
The first described plug body assembly 1 also comprises: the first fixing sleeve 14, it is set in outside the first described optical cable 41, its head is connected with the tailing screw flight of the described first hand-held handle 13, screw thread glue is smeared respectively on the screw thread of described first fixing sleeve 14 head and on the screw thread of the first hand-held handle 13 afterbody, the special seal gum of electronic product is poured between the afterbody and the first optical cable 41 of described first fixing sleeve 14, for the first optical cable 41 is locked completely and seals, to play the effect of antidetonation dustproof and waterproof.
The crust of the first optical cable 41 in described first hand-held handle 13 and the first fixing sleeve 14 is solidified; to play the effect of anti-towing protection; in the present embodiment; the solid cable cup 16 of an optical cable is utilized to realize; first in the solid cable cup 16 of optical cable, fill the special electronic product fluid sealant of the fire-resistant anti-electromagnetism of acid-alkali-corrosive-resisting high-low temperature resistant; such as AB glue; be nested with on the first optical cable 41; then the tail end of the first fixing sleeve 14 is promoted; make the solid cable cup 16 of optical cable enter the whorl side inside of the first hand-held handle 13, the crust of the first optical cable 41 is solidified.
The outside surface of described adapter assembly one end open 31 is provided with external thread, described self-locking casing assembly comprises: rotational shell 12, and it is set in outside described lock pin 11, and its inside surface is provided with the internal thread suitable with the external thread of described adapter assembly one end open 31, self-locking mechanism, it is set in the afterbody of described lock pin 11 and is connected with described rotational shell 12, described rotational shell 12 can only be rotated along a direction, otherwise self-locking, to guarantee that rotational shell 12 all there will not be the phenomenon that gets loose with the one end open 31 of adapter assembly in rundown process and after being connected, possesses shock resistance, in the present embodiment, described lock pin 11 can penetrate rotational shell 12 but cannot pass, described self-locking mechanism comprises: undaform planchet 121, self-locking rotary plane ratchet 122 and self-locking plane of orientation ratchet 123, lock pin 11 is connected with self-locking plane of orientation ratchet 123, rotational shell 12 is connected with self-locking rotary plane ratchet 122, described undaform planchet 121 produces axial elastic force owing to being subject to axial compression, by lock pin 11, rotational shell 12 and self-locking mechanism unify, the relation of agreeing with due to sweet-scented osmanthus face between self-locking rotary plane ratchet 122 and self-locking plane of orientation ratchet 123 again and the impact of sweet-scented osmanthus face angle, otherwise rotational shell 12 can only rotate self-locking clockwise.
The outside surface of the lock pin 11 of described first plug body assembly 1 is provided with key mapping 111; The inside surface of described adapter assembly one end open 31 is provided with keyway, so that lock pin 11 location when inserting, makes it to have blindmate and anti-misplug function.
Described first plug body assembly 1 also comprises: be located at first gland bonnet 18 that its opening can shirk installation; Described second plug body assembly 2 also comprises: be located at second gland bonnet 28 that its opening can shirk installation; Described adapter assembly also comprises: be located at the 3rd gland bonnet 341 that its one end open 31 can be shirked installation, and is located at the 4th gland bonnet 342 that its other end opening 32 can shirk installation; In the present embodiment, the first described gland bonnet 18 is for being provided with externally threaded lid, its inner face is provided with O-ring seal 181, when in the spatia that the first gland bonnet is screwed into first plug body assembly 1 one end, make that the open end of lock pin 11 head is corresponding with sealing circle 181 to be connected, play the effect of dustproof and waterproof.
The first described plug body assembly 1 is provided with the first identified component 19; The second described plug body assembly 2 is provided with the second identified component 29; Described adapter assembly 3 is provided with the 3rd identified component 35.
In the present embodiment, the first described plug body assembly 1 also comprises plug locating sleeve 17, and it is located in described lock pin 11, for withstanding the tail end of first joints of optical fibre 4.
In the present embodiment, the second described plug body assembly 2 is identical with the first described plug body assembly 1 structure; The other end opening 32 of described adapter assembly is suitable with the second described plug body assembly 2.
The concrete using method of a kind of MPO/MTP boundling prefabricated optical cable assembly of the present utility model is as follows:
3rd gland bonnet 341 of adapter assembly 3 both sides and the 4th gland bonnet 342 are turned on respectively and unloads, first gland bonnet 18 of the first plug body assembly 1 is turned on and unloads, second gland bonnet 28 of the second plug body assembly 2 is turned on and is unloaded, by the one end open 31 of the opening alignment adapter assembly 3 of the first lock pin 11 of the first plug body assembly 1 and by axially inserting after key mapping 111 and keyway 311 adaptation, turn clockwise rotational shell 12, until tighten, in process, the male of first joints of optical fibre 4 is inserted in the T-shaped adaptive groove of guide part 33 in described adapter assembly 3 gradually, the open end of the first lock pin 11 gradually in adapter assembly 3 one end O-ring seal 331 and be completely wrapped, and the axial force of tightening generation because being subject to rotational shell 12 forms seamless contact after causing both extruding, due to the characteristic of rotational shell 12 reverse self-locking, even if the utility model runs into vibration or runs into bad scenarios, also can only more to shake tightlier between adapter assembly 3 and the first plug body assembly 1 or more stubborn tighter, and can not get loose, in like manner, the second described plug body assembly 2 is connected with the other end opening 32 of adapter assembly 3, in rundown process, the female of second joints of optical fibre and the male of first joints of optical fibre 4 aligned engagement form optical transmission chain in the T-shaped adaptive groove of guide part 33.
Although content of the present utility model has done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to restriction of the present utility model.After those skilled in the art have read foregoing, for multiple amendment of the present utility model and substitute will be all apparent.Therefore, protection domain of the present utility model should be limited to the appended claims.
Claims (10)
1. a MPO/MTP boundling prefabricated optical cable assembly, it comprises: afterbody presets first joints of optical fibre (4) of the first optical cable (41), and afterbody presets second joints of optical fibre of the second optical cable, the described head of first joints of optical fibre (4) is aimed at the head of second joints of optical fibre and is coupled to form optical transmission chain; It is characterized in that, described prefabricated optical cable assembly also comprises:
Adapter assembly (3), its both ends open (31,32) is also formed through inner chamber, is provided with guide part (33) in the middle part of this inner chamber, and the both sides of this guide part (33) are respectively equipped with seal (331,332);
First plug body assembly (1), it is located at described first joints of optical fibre (4) outward, and its one end being positioned at described first joints of optical fibre (4) head is provided with opening, and the head end of first joints of optical fibre (4) is exposed;
Second plug body assembly (2), it is located at outside the second described joints of optical fibre, and its one end being positioned at described second joints of optical fibre head is provided with opening, and the head end of second joints of optical fibre is exposed;
The open end of described first plug body assembly (1) is corresponding with the seal (331) of described adapter assembly one end to be connected, and the open end of described second plug body assembly (2) is corresponding with the seal (332) of the described adapter assembly other end to be connected; The head of first joints of optical fibre (4) and the head of second joints of optical fibre are aimed at and are coupled in the guide part (33) of adapter assembly, in first joints of optical fibre (4) and second joints of optical fibre are wrapped in shell that adapter assembly (3), the first plug body assembly (1) and the second plug body assembly (2) be connected to form.
2. MPO/MTP boundling prefabricated optical cable assembly as claimed in claim 1, it is characterized in that, the first described plug body assembly (1) comprises:
Lock pin (11), its head has one for installing the opening of described first joints of optical fibre (4), the end face of this head opening and the seal (331) of described adapter assembly one end suitable;
Self-locking casing assembly, it is set in described lock pin (11) outward, and its afterbody is connected with the afterbody of described lock pin (11); Between the inside surface of described self-locking casing assembly and the outside surface of described lock pin (11), there is interval, forming the spatia for holding described adapter assembly one end open (31); The inside surface of described self-locking casing assembly is corresponding with the outside surface of described adapter assembly one end open (31) to be connected.
3. MPO/MTP boundling prefabricated optical cable assembly as claimed in claim 2, it is characterized in that, the first described plug body assembly (1) also comprises:
First hand-held handle (13), it is set in described the first optical cable (41) outward, its head is connected with the tailing screw flight of described lock pin (11), smears screw thread glue respectively on the screw thread of described lock pin (11) afterbody and on the screw thread of the first hand-held handle (13) head.
4. MPO/MTP boundling prefabricated optical cable assembly as claimed in claim 3, it is characterized in that, the first described plug body assembly (1) also comprises:
First fixing sleeve (14), it is set in described the first optical cable (41) outward, its head is connected with the tailing screw flight of the described first hand-held handle (13), smear screw thread glue respectively on the screw thread of described first fixing sleeve (14) head and on the screw thread of the first hand-held handle (13) afterbody, between the afterbody and the first optical cable (41) of described first fixing sleeve (14), pour into the special seal gum of electronic product.
5. MPO/MTP boundling prefabricated optical cable assembly as claimed in claim 4, is characterized in that:
The crust of the first optical cable (41) in described first hand-held handle (13) and the first fixing sleeve (14) is solidified.
6. MPO/MTP boundling prefabricated optical cable assembly as claimed in claim 2, is characterized in that:
The outside surface of described adapter assembly one end open (31) is provided with external thread;
Described self-locking casing assembly comprises:
Rotational shell (12), it is set in described lock pin (11) outward, and its inside surface is provided with the internal thread suitable with the external thread of described adapter assembly one end open (31);
Self-locking mechanism, it is set in the afterbody of described lock pin (11) and is connected with described rotational shell (12), and described rotational shell (12) can only be rotated along a direction, on the contrary self-locking.
7. MPO/MTP boundling prefabricated optical cable assembly as claimed in claim 2, is characterized in that:
The outside surface of the lock pin (11) of described first plug body assembly (1) is provided with key mapping (111);
The inside surface of described adapter assembly one end open (31) is provided with keyway, so that lock pin (11) location when inserting.
8., as the MPO/MTP boundling prefabricated optical cable assembly in claim 2 ~ 7 as described in any one, it is characterized in that:
The second described plug body assembly (2) is identical with the first described plug body assembly (1) structure;
The other end opening (32) of described adapter assembly is suitable with the second described plug body assembly (2).
9., as the MPO/MTP boundling prefabricated optical cable assembly in claim 1 ~ 7 as described in any one, it is characterized in that:
Described first plug body assembly (1) also comprises: be located at first gland bonnet (18) that its opening can shirk installation;
Described second plug body assembly (2) also comprises: be located at second gland bonnet (28) that its opening can shirk installation;
Described adapter assembly also comprises: be located at the 3rd gland bonnet (341) that its one end open (31) can be shirked installation, and is located at the 4th gland bonnet (342) that its other end opening (32) can shirk installation.
10., as the MPO/MTP boundling prefabricated optical cable assembly in claim 1 ~ 7 as described in any one, it is characterized in that:
The first described plug body assembly (1) is provided with the first identified component (19);
The second described plug body assembly (2) is provided with the second identified component (29);
Described adapter assembly (3) is provided with the 3rd identified component (35).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520119334.0U CN204439905U (en) | 2015-02-28 | 2015-02-28 | A kind of MPO/MTP boundling prefabricated optical cable assembly |
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| CN201520119334.0U CN204439905U (en) | 2015-02-28 | 2015-02-28 | A kind of MPO/MTP boundling prefabricated optical cable assembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104597577A (en) * | 2015-02-28 | 2015-05-06 | 上海思方电气技术有限公司 | MPO/MTP cluster prefabricated optical cable component |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104597577A (en) * | 2015-02-28 | 2015-05-06 | 上海思方电气技术有限公司 | MPO/MTP cluster prefabricated optical cable component |
| CN104597577B (en) * | 2015-02-28 | 2017-07-14 | 上海思方电气技术有限公司 | A kind of MPO/MTP boundlings prefabricated optical cable component |
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