TW201725409A - Narrow width adapters and connectors with spring loaded remote release - Google Patents

Abstract

Narrow width fiber optic connectors having spring loaded remote release mechanisms to facilitate access and usage of the connectors in high density arrays. A narrow pitch connector comprises a plurality of LC connectors wherein a pitch of said narrow pitch connector is less than about 5.25mm, for example about 4.8mm, a plurality of latching arms coupled to the plurality of LC connectors, a housing configured to hold the plurality of LC connectors, and a pull tab coupled to the plurality of latching arms and configured to remotely unlatch the narrow pitch connector, The pull tab may include a spring configured to provide a force such that the latching arms return to an undisplaced position. In another embodiment, a narrow width multi-fiber connector has a width less than or equal to about 9.6mm.

Description

Narrow-width adapter and connector with spring-loaded remote release background

The present invention generally relates to connectors having remote release members, and more particularly to narrow width adapters and connectors, such as narrow pitch LC duplex adapters and connectors having spring loaded remote release members, And narrow width multi-fiber connectors.

The popularity of the Internet has made communication networks grow unprecedentedly. Consumer demand for services and increasing competition have forced network providers to continually seek ways to improve service quality while reducing costs.

Some workarounds include configuring a high-density interconnect panel. High-density interconnect panels can be designed to ensure that the ever-increasing interconnect volume required to support this fast-growth network becomes a compact form factor, thereby increasing service quality and reducing costs such as floor space and support surcharges. However, the configuration of high-density interconnect panels has not been fully implemented.

In a communication network, such as in a data center and a switching network, a plurality of interconnects between the mating connectors can be tightened to form a high density panel. Panel and connector manufacturers can optimize these high densities by reducing the size of the connectors and/or the spacing between adjacent connectors on the panel. although Both methods are effective for increasing panel connector density, but reducing connector size and/or spacing also increases support costs and reduces service quality.

In a high-density panel configuration, adjacent connectors and cable assemblies can block access to the independent release mechanism. The physical obstacle reduces the ability of an operator to reduce the stress applied to the cables and the connectors. For example, these stresses are applied when a user enters a dense set of connectors and uses his/her thumb and forefinger to push the surrounding fibers and connectors away to access a separate connector release mechanism. Excessive stress on the cables and connectors can create potential defects that can compromise the integrity and/or reliability of such terminals and can cause severe damage to network performance.

Although an operator may attempt to access the set of dense connectors and actuate the release mechanism using a tool such as a screwdriver, adjacent cables and connectors may obstruct the operator's line of sight, making it difficult to push the surrounding cables apart. In this case, the tool is guided to the release mechanism. Moreover, directing the tool to the release mechanism is a time consuming process even when the operator has a clear line of sight. Therefore, using a tool is not effective for reducing support time and increasing service quality.

Currently in telecommunications infrastructure, small Form Factor Pluggable Transceivers (SFPs) known as Ethernet switches and/or patch hubs are used in rack-mounted copper-to-fiber media converters. Due to the limited space available for these infrastructures, Ethernet and fiber optic connections, these devices are evolving every day to increase connection density. Although fiber optic connectors have become smaller and smaller over the years, they have not been designed to be smaller than SFPs that require insertion into a typical size and are readily available. However, as transceiver technology evolves, smaller The SFP will be used to generate higher density switching and/or patching hub devices. Therefore, there is a need for fiber optic connectors that can meet the future development needs of smaller SFPs.

summary

Aspects of the present invention relate to providing adapters and fiber optic connectors for future developments of smaller SFPs including, for example, narrow pitch SFPs for LC type duplex connectors and narrow width SFPs for MPO connectors. Aspects of the invention also provide a spring loaded remote release mechanism for accessing and using narrow pitch connectors in high density arrays or panels.

According to one aspect, a narrow pitch fiber optic connector is provided comprising: a plurality of LC connectors configured such that one of the narrow pitch connectors has a pitch of less than about 5.25 mm; a plurality of latch arms that are coupled to the plurality of LCs a coupler that is configured to hold the plurality of LC connectors; and a pull tab coupled to the plurality of latch arms and configured to remotely unlock the narrow pitch connector. In some embodiments, the spacing can be less than or equal to about 4.8 mm.

In some embodiments, the pull tab can include a spring that is configured to provide a force to return the latch arms to an undisplaced position. The pull tab can include a distal end for unlocking one of the narrow pitch connectors and a proximal end that can be coupled to the pull tab and the plurality of latch arms. The proximal end can include a single pin and the single pin set can be configured to engage the plurality of latch arms. The proximal end can include a plurality of pins and the pin sets are configured to slide along a semi-circular profile of the plurality of latch arms. In various embodiments, the narrow pitch connector is a duplex connector.

In various embodiments, the housing can include a bottom housing and a top housing coupled to the bottom housing. The bottom case may include a side wall and the side wall is configured to be openable. The side wall may include a raised profile at a rear end thereof. The top case can be assembled to hold the pull tab. The pull tab can be further assembled to be pushed down to unlock the narrow pitch connector without any horizontal movement of the pull tab.

According to another aspect, a duplex optical fiber connector is disclosed, comprising: two LC connectors configured such that one of the duplex LC connectors has a pitch of less than about 5.25 mm; and a pull tab, and the second The LC connector is coupled to remotely unlock the duplex connector when pulled horizontally, wherein the tab is subjected to a spring load. In an embodiment, the spacing can be less than or equal to 4.8 mm.

In some embodiments, the pull tab can include a proximal end and the proximal end assembly is configured to be coupled to each of the latch arms of the two LC connectors. The duplex fiber optic connector can further include a housing having a side wall that is configured to open. The housing may further include a top housing, and the top housing is configured to receive the pull tab. The pull tab can be further configured to be pushed down to unlock the duplex connector without any horizontal movement of the pull tab.

In accordance with another aspect, a narrow pitch adapter is disclosed that includes a recess that is configured to receive a duplex fiber optic connector and that has a pitch of less than about 5.25 mm. In some embodiments, the spacing can be less than or equal to about 4.8 mm.

According to still another aspect, a narrow width fiber optic connector is disclosed, comprising: a multi-fiber connector, wherein one of the narrow width fiber optic connectors Width less than about 12.4 mm; at least one latch arm coupled to the multi-fiber connector; a housing that is configured to hold the multi-fiber connector; and a pull tab with the at least one latch The arms are coupled and assembled to unlock the narrow width connector remotely. The multi-fiber connector can include a multi-fiber MT ferrule. In certain embodiments, the width can be less than or equal to about 9.6 mm. In some embodiments, the pull tab can include a spring and the spring assembly can be configured to provide a force to return the at least one latch arm to an undisplaced position.

100,900‧‧‧SFP

102,108,402,902,1102‧‧ Socket

104,110‧‧‧ spacing

106‧‧‧ Adapter

200,204‧‧‧LC duplex connector

202,208‧‧‧Learning LC connector

206‧‧‧Remote release tab

210‧‧‧ pins

212‧‧‧Extended components

300‧‧‧Narrow-pitch LC SFP

400‧‧‧ Adapter

500, 1200‧‧‧ connectors

502‧‧‧LC connector

503‧‧‧ ferrule

504,1204‧‧‧Extension member or latch arm

506,1206‧‧‧shell

508, 1208‧‧‧ bottom shell

510,1210‧‧‧ top shell

512, 1212‧‧‧ side wall

514,1214‧‧‧ pull-up

516, 1216‧‧‧ distal

518, 1218‧‧‧ proximal end

520,1220‧‧ spring

522, 1222‧‧ sales

524,528‧‧‧Restrictor

526‧‧‧ longitudinal recess

530‧‧‧ recess

1000‧‧‧MPO connector

1100‧‧‧Narrow-width multi-fiber SFP

1202‧‧‧Multi-fiber MT/MPO ferrule

Simple illustration

1A is a perspective view of a conventional standard 6.25 mm pitch LC connector SFP; FIG. 1B is a perspective view of a conventional standard 6.25 mm pitch LC adapter; FIG. 1C is a top view of the conventional adapter of FIG. 1B; FIG. Figure 1B is a front view of the conventional adapter showing the 6.25 mm pitch; Figure 2A is a perspective view of a conventional LC duplex connector; Figure 2B is a conventional LC duplex with a remote release tab Figure 2C is a plan view of one of the conventional LC connectors used in the embodiment shown in Figures 2A and 2B; Figure 2D is a side view of the conventional LC connector of Figure 2C; Figure 3 is based on this A perspective view of a future narrow pitch LC SFP for receiving a connector disclosed herein; 4A is a perspective view of one embodiment of a narrow pitch LC adapter in accordance with an aspect of the present invention; FIG. 4B is a top view of the narrow pitch LC adapter of FIG. 4A; and FIG. 4C is a narrow pitch LC adapter of FIG. 4A. Front view showing a 4.8 mm pitch; FIG. 5 is a perspective view of an embodiment of a narrow pitch LC duplex connector having a remote release member in accordance with an aspect of the present invention; FIG. 6A is in accordance with an aspect of the present invention. FIG. 6B is a side view of the LC connector used in the embodiment of FIG. 5; FIG. 6B is a side view of the LC connector of FIG. 6A according to the aspect of the present invention; FIG. 7 is a narrow-pitch LC double of FIG. 5 according to the aspect of the present invention. A perspective view of the connector, and the release mechanism has been removed; FIG. 8 is an exploded perspective view of the narrow pitch LC duplex connector of FIG. 5 according to the aspect of the present invention; FIG. 9 is a perspective view of a conventional standard MPO SFP; Figure 10A is a perspective view of a conventional standard MPO connector; Figure 10B is a top view of the conventional MPO connector of Figure 10A having a width of 12.4 mm; Figure 10C is a front view of the conventional MPO connector of Figure 10A; Figure 11 A future narrow-width multi-fiber SF for housing the connector disclosed herein in accordance with an aspect of the present invention Figure 12A is a perspective view of an embodiment of a narrow width multi-fiber connector having a remote release member in accordance with an aspect of the present invention; Figure 12B is a top plan view of the narrow width multi-fiber connector of Figure 12A having a width of 9.6 mm in accordance with an aspect of the present invention; and Figure 12C is a front view of the narrow width multi-fiber connector of Figure 12A in accordance with an aspect of the present invention. .

Detailed description

The invention is not limited to the particular systems, devices and methods described, as these are subject to change. The words used in the description are for the purpose of description and description

The singular forms "a", "the" and "the" All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art, unless otherwise defined. Nothing in this disclosure is to be construed as an admission that the embodiments described in the present invention are not <RTIgt; </ RTI> prior to the disclosure. The term "comprising" as used in this document means "including, but not limited to."

For the purposes of this application, the following terms shall have the meanings set forth below.

One of the connectors used herein means a device and/or an assembly thereof that connects a first module or cable to a second module or cable. The connector can be configured for fiber optic transmission or electrical signal transmission. The connector can be of any suitable type currently known or developed in the future, such as a set of loop connectors (FC), a fiber distributed data interface (FDDI) connector, an LC connector, a mechanical switching (MT) connection. , an SC connector, an SC duplex connector, or a Direct tip (ST) connector. The connector can be substantially defined by a connector housing body. In certain embodiments, the housing body can have any or all of the components described herein.

A "fiber optic cable" or "fiber optic cable" means a cable that contains one or more of the optical signals used to conduct optical signals in a majority of the beams. The fibers can be constructed of any suitable transparent material, including glass, fiberglass, and plastic. The cable can include a jacket or covering material surrounding one of the fibers. Additionally, the cable can be coupled to a connector on one or both ends of the cable.

The various embodiments described herein provide a remote release mechanism that allows a user to remove cable assembly connectors that are closely spaced apart on a high density panel without damaging the surrounding connectors and without surrounding connectors. Unintentional separation, uninterrupted transmission through surrounding connectors, etc. Various embodiments also provide narrow pitch LC duplex connectors and narrow width multi-fiber connectors for use with, for example, future narrow pitch LC SFPs and future narrow width SFPs. The remote release mechanism allows the use of such narrow pitch LC duplex connectors and narrow width multi-fiber connectors in dense narrow pitch LC SFP and narrow width multi-fiber SFP arrays.

Figure 1A shows a perspective view of a conventional standard 6.25 mm pitch LC connector SFP100. The SFP100 is configured to receive a duplex connector and provides two sockets 102 for receiving an LC connector. The spacing 104 is defined as the inter-axis distance between the central longitudinal axes of the sockets of the two receptacles 102. FIG. 1B shows a perspective view of a conventional standard 6.25 mm pitch LC adapter 106. The adapter 106 is also configured to receive a duplex connector and provide two The sockets 108 are used to receive an LC connector. 1C is a top plan view of the adapter 106 of FIG. 1B. The distance 110 between the adapters 106 is similar to the distance between the SFPs 100 defined as the inter-axis distance between the central longitudinal axes of the receptacles of the two receptacles 108, as shown in Figure 1D showing the front view of the adapter 106.

2A shows a conventional LC duplex connector 200 that can be used with the conventional SFP 100 and the conventional adapter 106. The LC duplex connector 200 includes two conventional LC connectors 202. 2B shows another conventional LC duplex connector 204 having a remote release tab 206 and including two conventional LC connectors 208. As shown, the remote release tab includes two pins 210, and each pin assembly is configured to be coupled to the extension member 212 of each LC connector 208. 2C and 2D show top and side views, respectively, of the conventional LC connector 208 having a width of 5.6 mm, and further showing the extension member 212.

The various embodiments disclosed herein are assembled for use with a future SFP, such as the narrow pitch LC SFP 300 of FIG. 3 having a smaller pitch than the conventional 6.25 mm and 5.25 mm pitch. As further described below, various embodiments use LC-type fiber optic connectors in a duplex configuration (with transmit and receive fibers), but have a connector-to-axis distance that is less than the conventional 6.25 mm and 5.25 mm pitch.

According to another aspect, an embodiment of a narrow pitch duplex LC adapter is disclosed. 4A through 4C show an embodiment of a narrow pitch adapter 400. In accordance with the disclosure herein, the narrow pitch adapter 400 has sockets 402 on opposite ends thereof and the sockets 402 are configured to interface with two narrow pitch LC duplex connectors. FIG. 4B shows a top view of the adapter 400. Figure 4C shows a front view further showing that the adapter 400 has a distance of 4.8 mm. The adapter 400 is configured to receive a duplex LC connector, and one of the adapters has a pitch corresponding to the inter-axis distance between the LC connectors of the LC duplex connector. While the adapter 400 has a distance of 4.8 mm, various embodiments of the narrow pitch adapter disclosed herein may have a different distance than conventional adapter spacing, such as less than 6.25 mm and less than about 5.25 mm. spacing. In some embodiments, the spacing can be equal to or less than about 4.8 mm.

In addition to the need for narrow connectors, it is also necessary to remotely unlock narrow connectors used in dense narrow SFP arrays. This is because it is almost impossible for a finger to access the connector without interrupting the service of the adjacent fiber. While there have been designs for remotely unlocking fiber optic connectors, as shown, for example, in Figure 2B, it has proven to be difficult to function as needed when inserting into a typical molded construction of all SFPs. The molded SFP does not have sharp edges and internal flash (burrs) that would interfere with the normal flexing action of the plastic latches of the fiber optic connectors. In particular, when the latch is remotely actuated by a tab that protrudes a distance behind the connector to prevent fingers from interfering with adjacent fibers, interference between the metal edge and the burr prevents the plastic latch of the fiber connector from being fully latched. Engage or separate easily.

In order to make the connectors more reliable with respect to the latching/unlocking of the SFP, various embodiments disclosed herein, such as shown and described below with respect to Figures 5, 7, 8 and 12, are the remote latches. The assembly (tab) adds a spring force to ensure that the connector latches can return to the undisplaced position and thus become fully engaged within the recess of the SFP.

FIG. 5 shows an embodiment of a narrow pitch connector 500 in accordance with aspects disclosed herein. The narrow pitch connector 500 includes two LC connectors One of the 502 duplex LC connectors. Each LC connector 502 includes a set of turns 503 and an extension member or latch arm 504. The connector 500 has a distance of 4.8 mm and is defined as the inter-axis distance between the central axes of the LC connectors 502. In other embodiments, the connector spacing can be less than the spacing between conventional connectors, such as less than 6.25 mm and less than about 5.25 mm. In some embodiments, the spacing can be equal to or less than about 4.8 mm.

The connector 500 further includes a housing 506 having a bottom housing 508 and a top housing 510. The bottom housing 508 includes a side wall 512. In various embodiments, the housing of the connector can be a convertible housing. The side walls can be configured to be openable to open the housing, for example to change the polarity of the connector. The side walls 512 can be raised toward the rear of the connector, as shown in FIG. One advantage of having the sidewalls bulged toward the rear of the connector is that it is easier to access. In other embodiments, the side walls may be raised at another location.

The connector 500 further includes a pull tab 514 having a distal end 516 and a proximal end 518. The pull tab 514 further includes a spring 520 that is configured to provide a force such that the connector latch arm 504 returns to the undisplaced position and thus becomes fully engaged within the recess of the SFP. The distal end 516 of the pull tab 514 can be pulled to release the connector 500 remotely by an SFP or adapter. The proximal end 518 of the pull tab 514 has a unique shape to engage the unique contour of the latch arm 504 of the narrow pitch LC connector 500. The proximal end 518 engages the two latch arms 504 of the duplex LC connector 500. That is, the proximal end 518 includes a single pin that is configured to engage the latch arms of the two connectors 502. At the proximal end 518 of the pull tab 514, there are a plurality of outwardly extending pins 522, and the pins 522 are assembled to be directly placed in the duplex LC connector 502. The semi-circular surface of the latch arm 504 slides over and along it. The horizontal and rearward path directions of the pins 522 cause the semicircular profiles of the connector latch arms 504 to flex downwardly. Because the pins 522 are not received within the inclined grooves of the connector latch arms 504, the tabs 514 can also be pushed down at a position directly behind the LC connectors 502 instead of At a distance from one of the rears of the connectors, for example, the sheet is pulled by the distal end 516 to move rearward. The action of pushing one of the connector levers or latch arms 504 down can unlock the connector 500. In some cases, horizontal movement of the pull tab 514 may not be required. Thus, the connector latch arms 504 can be pushed down and one of the tabs 514 is not moved horizontally.

6A and 6B show top and side views, respectively, of the LC connector 502 of the narrow pitch connector 500. Figure 6A further shows that the LC connector 502 has a width of 4.6 mm. FIG. 6B shows the semicircular profile of the latch arms 504.

FIG. 7 shows a partial exploded view of the narrow pitch connector 500 of FIG. The top housing 510 is separate from the bottom housing 508. The pull tab 514 is coupled to the top housing 510 and is configured to slide longitudinally along the length of the connector. The top housing 510 also includes a limiter 524, and the limiter 524 is assembled to receive the pull tab 514.

FIG. 8 shows a further exploded view of the narrow pitch connector 500. In detail, the pull tab 514 is shown separated from the top housing 510 and the spring 520 is removed by the pull tab. The pull tab 514 includes a longitudinal recess 526 that is configured to receive the spring 520 and is configured to engage at least one limiter 528 that can hold the spring. The top housing 510 also includes a recess 530, and the recess 530 group It is configured to receive at least a portion of the pull tab 514, such as the spring 520 and the proximal end 518. In various embodiments, the pull tab is remotely coupled to the connector through the top housing.

Figure 9 shows a perspective view of a conventional standard MPO SFP900. The SFP 900 is configured to receive a standard MPO connector and is provided with a socket 902 for receiving an MPO connector having a conventional width, as shown, for example, in Figures 10A through 10C.

FIG. 10A shows a perspective view of a conventional MPO connector 1000. As shown in FIG. 10B, the conventional MPO connector 1000 has a width of 12.4 mm. Figure 10C shows a front view of the MPO connector 1000.

Figure 11 shows an embodiment of a future narrow width multi-fiber SFP 1100 in accordance with one aspect of the present invention. The various embodiments disclosed herein are assembled for use with the narrow width multi-fiber SFP 1100, and the narrow width multi-fiber SFP 1100 has a width that is less than the width of the conventional MPO connectors, i.e., less than about 12.4 mm. The narrow width multi-fiber SFP has a socket 1102 and the socket 1102 is configured to receive a narrow width multi-fiber connector, such as a narrow width connector having an MT ferrule.

Figure 12A shows an embodiment of a narrow width connector 1200 in accordance with aspects disclosed herein. The narrow width connector 1200 includes a multi-fiber connector of one of the multi-fiber MT/MPO ferrules 1202. The connector 1200 includes two extension members or latch arms 1204. In other embodiments, the connector can include at least one latch arm. The connector 1200 has a width of 9.6 mm as shown in the top view of the connector 1200 in Figure 12B. In other embodiments, the connector width can be less than the width of the conventional multi-fiber connector. For example, it is smaller than 12.4 mm of the conventional MPO connector shown in FIG. 10B. In some embodiments, the width can be equal to or less than about 9.6 mm.

The connector 1200 further includes a housing 1206 having a bottom housing 1208 and a top housing 1210. The bottom housing 1208 includes a sidewall 1212. In various embodiments, the housing of the connector can be a convertible housing. The side walls can be configured to be openable to open the housing, for example to change the polarity of the connector. The side walls 1212 can be raised toward the rear of the connector. One advantage of having the sidewalls bulged toward the rear of the connector is that it is easier to access. The side walls can also be raised at another location.

The connector 1200 further includes a pull tab 1214 having a distal end 1216 and a proximal end 1218. The pull tab 1214 further includes a spring 1220 that is configured to provide a force such that the connector latch arm 1204 returns to the undisplaced position and thus becomes fully engaged within the recess of the SFP. The distal end 1216 of the pull tab 1214 can be pulled to release the connector 1200 remotely by an SFP or adapter. The proximal end 1218 of the pull tab 1214 has a unique shape to engage the unique contour of the latch arm 1204 of the narrow pitch multi-fiber connector 1200. The proximal end 1218 engages the two latch arms 1204 of the multi-fiber connector 1200. That is, the proximal end 1218 includes a single pin that is configured to engage the latch arms 1204. The proximal end 1218 of the pull tab 1214 has a plurality of outwardly extending pins 1222, and the pins 1222 are assembled to be placed directly over and along the semi-circular surface of the latch arms 1204. The horizontal and rearward path directions of the pins 1222 bend the semicircular profile of the connector latch arms 1204 downwardly. Because the pins 1222 are not received in the inclined grooves of the connector latch arms 1204, they may also be behind the latch arms 1204. The pull tab 1214 is pushed down at one of the positions, rather than being moved remotely by one of the rears of the connector, such as by the distal end 1216 pulling the sheet. The action of pushing down one of the body levers or the latch arms 1204 can unlock the connector 1200. In some cases, horizontal movement of the pull tab 1214 may not be required. Thus, the connector latch arms 1204 can be pushed down and one of the tabs 1214 is not moved horizontally.

12B and 12C show top and front views, respectively, of the narrow width multi-fiber connector 1200. Figure 12B further shows that the connector 1200 has a width of 9.6 mm.

In the above detailed description, reference is made to the accompanying drawings which form a part. In the figures, like symbols generally indicate similar components unless the context indicates otherwise. The illustrative embodiments described in the detailed description, drawings, and claims are not intended to be limiting. Other embodiments may be utilized, and other changes may be made, without departing from the spirit or scope of the subject matter. It will be readily appreciated that various aspects of the invention, as described herein and illustrated in the drawings, may be configured, substituted, combined, separated and designed in a variety of different configurations, and all are apparently contemplated herein.

The invention is not limited to the specific embodiments described in this application. Many modifications and variations are possible without departing from the spirit and scope of the invention. In addition to those enumerated herein, those skilled in the art can understand the functionally equivalent methods and apparatus within the scope of the present invention from the foregoing description. Such modifications and variations are intended to fall within the scope of the appended claims. The invention is only limited to the scope of the additional patent application And the full scope of the equivalents of the rights granted by the scope of such patent application. It will be understood that the invention is not limited to the particular methodology, reagents, compounds, compositions, or biological systems that can be modified. It is also to be understood that the terms are not intended to be limited

The use of any plural and/or singular terms in this context is intended to be in the singular and/or singular and singular. Various singular/plural permutations may be specifically presented herein for clarity.

It will be appreciated by those of ordinary skill in the art that, in general, and in particular, the terms used in the scope of the appended claims (e.g., the subject matter of the appended claims) are generally intended to be "open". For example, the phrase "including" should be interpreted as "including but not limited to", the term "having" should be interpreted as "having at least" and the term "including" should be construed as "including but not limited to". . The various components, methods, and devices may be described as "including, but not limited to," the various components, methods, and devices. "Consisting" or "consisting of various components and steps", and the term should be interpreted as defining a substantially closed component group. It will be further appreciated by those of ordinary skill in the art that if the intent is a specific number of referral request statements, The intent is to be expressly stated in the claim, and the intent is not in the absence of the statement. For example, as an aid to understanding, the following additional claims may include the use of the phrase "at least one" and "one. Or majority" to refer to the request statement. However, even if the same request item includes the indefinite articles "at least one" and "one or a plurality" and the indefinite article such as "a" (for example, "a" should be interpreted as meaning "at least one" or "one or a majority" The use of such phrases should not be construed as implying that the indefinite article "a" refers to a request statement that would limit any particular claim containing the limitation of the referral claim to only one implementation of the statement. This case is also true for the use of the definite article used to introduce the request statement. Moreover, even if a particular number of referral request statements are explicitly stated, those of ordinary skill in the art will appreciate that the statement should be interpreted as indicating at least the number (e.g., "two statements" without other modifiers. A bare statement means at least two statements, or two or more statements). Further, in the case of using a convention similar to "at least one of A, B, and C, etc.", the configuration is generally predictable in view of the conventional aspect of the art in the art. "A type having at least one of A, B and C" will include, but is not limited to, only A, only B, only C, A and B, A and C, B and C, and/or A system with A, B, and C). In the case of using a convention similar to "at least one of A, B, or C, etc.", the general configuration is generally predictable in terms of the conventional aspects of the art (e.g., " One having at least one of A, B or C" will include, but is not limited to, having only A, only having B, having only C, having A and B, having A and C, having B and C, and/or having A , B and C systems, etc.). It will be further appreciated by those of ordinary skill in the art that in fact, any alternative words and/or phrases representing two or more alternative terms should be understood, whether in the description, the scope of the patent, or the drawings. It is contemplated that the possibility of including one of the terms, any of the terms, or a dual term may be included. For example, the possibility that the phrase "A or B" includes "A" or "B" or "A and B" can be understood.

In addition, although the features and aspects of the present invention are illustrated by the Markush group, those of ordinary skill in the art will appreciate that the present invention is also independent of any of the Markush group. The components of the component or subgroup are described.

As will be appreciated by those of ordinary skill in the art, all or all of the possible sub-ranges and sub-ranges thereof are also included in the scope of the disclosure. combination. Any range of enumeration can be readily recognized as being fully described and the same range can be divided into at least two equal parts, three equal parts, four equal parts, five equal parts, ten equal parts, and the like. As a non-limiting example, the ranges described herein can be readily divided into one-third, one-third, and one-third. It will also be appreciated by those of ordinary skill in the art that the language, such as "at least" Finally, as will be appreciated by those of ordinary skill in the art, a range includes individual components. Thus, for example, a group having 1 to 3 units represents a group having 1, 2, or 3 units. Similarly, a group having 1 to 5 units represents a group having 1, 2, 3, 4, or 5 units, and the like.

It should be understood that various of the above disclosures and other features and functions, or alternatives thereof, may be combined into many other different systems or applications as desired. Those who have the usual knowledge in the technical field can work on various kinds of current Alternatives, modifications, variations, or improvements are contemplated or contemplated, and the disclosed embodiments are also intended to include alternatives, modifications, variations, or improvements.

500‧‧‧Connector

502‧‧‧LC connector

503‧‧‧ ferrule

504‧‧‧Extension member or latch arm

506‧‧‧shell

508‧‧‧ bottom case

510‧‧‧ top shell

512‧‧‧ side wall

514‧‧‧ pull-up

516‧‧‧ distal

518‧‧‧ proximal end

520‧‧ ‧ spring

522‧‧ ‧ sales

Claims (20)

A narrow pitch fiber optic connector comprising: a plurality of LC connectors configured such that one of the narrow pitch connectors has a pitch of less than about 5.25 mm; a plurality of latch arms coupled to the plurality of LC connectors; a housing, The assembly is configured to hold the plurality of LC connectors; and a pull tab coupled to the plurality of latch arms and configured to remotely unlock the narrow pitch connector. A narrow pitch fiber optic connector of claim 1, wherein the spacing is less than or equal to about 4.8 mm. A narrow pitch fiber optic connector of claim 1 wherein the pull tab includes a spring that is configured to provide a force to return the latch arms to an undisplaced position. The narrow pitch fiber optic connector of claim 3, wherein the pull tab includes a distal end for distally unlocking the narrow pitch connector and is configured to couple the pull tab to one of the plurality of latch arms end. The narrow pitch fiber optic connector of claim 4, wherein the proximal end includes a single pin and the single pin set is configured to engage the plurality of latch arms. A narrow pitch fiber optic connector of claim 5, wherein the proximal end includes a plurality of pins and the pin sets are configured to slide along a semicircular profile of the plurality of latch arms. A narrow pitch fiber optic connector of claim 1, wherein the narrow pitch connector is a duplex connector. A narrow pitch fiber optic connector of claim 1, wherein the housing includes a bottom housing and a top housing coupled to the bottom housing. The narrow pitch fiber optic connector of claim 8, wherein the bottom case includes a side wall and the side wall is configured to be openable. A narrow pitch fiber optic connector according to claim 9, wherein the side wall includes a raised profile at a rear end thereof. The narrow pitch fiber optic connector of claim 8, wherein the top housing is configured to hold the tab. A narrow pitch fiber optic connector of claim 1, wherein the tab is further configured to be pushed down to unlock the narrow pitch connector and does not create any horizontal movement of the tab. A duplex fiber optic connector comprising: two LC connectors configured such that one of the duplex LC connectors has a pitch of less than about 5.25 mm; and a pull tab coupled to the two LC connectors for being horizontally The duplex connector is unlocked remotely when the ground is pulled, wherein the pull tab is subjected to a spring load. The duplex fiber optic connector of claim 13, wherein the pull tab includes a proximal end and the proximal end assembly is configured to be coupled to each of the latch arms of the two LC connectors. The duplex fiber optic connector of claim 13 further comprising a housing, and the housing has an openable side wall, wherein the housing further comprises a top housing, and the top housing assembly is The tab is received. The duplex fiber optic connector of claim 13, wherein the pull tab is further grouped The fit can be pushed down to unlock the duplex connector and does not create any horizontal movement of the pull tab. A narrow width fiber optic connector comprising: a multi-fiber connector, wherein one of the narrow width fiber optic connectors has a width of less than about 12.4 mm; at least one latch arm coupled to the multi-fiber connector; a housing The plurality of fiber optic connectors are configured to hold; and a pull tab coupled to the at least one latch arm and configured to remotely unlock the narrow width connector. A narrow width fiber optic connector according to claim 17, wherein the multi-fiber connector comprises a multi-fiber MT ferrule. A narrow width fiber optic connector of claim 17, wherein the width is less than or equal to about 9.6 mm. The narrow width fiber optic connector of claim 17, wherein the pull tab includes a spring and the spring assembly is configured to provide a force to return the at least one latch arm to an undisplaced position.