The disclosed subject matter relates generally to data cabling, and, in particular, to fiber optic and copper cable connectors
Many fiber optic systems employ Lucent Connector (LC) fiber optic connectors for termination and connectivity of fiber optic cables. The small form factor of these LC connectors allows a large number of fiber optic cables to be connected in high density arrays, such as those found in fiber optic patch panels used in data centers. Simplex LC connectors house a single optical fiber terminated on a ferrule that protrudes from the front of the connector housing, thereby providing termination and connectivity for a single data line. Duplexed LC connectors together house two optical fibers that are terminated on respective ferrules that protrude from the front of the duplexed connectors, providing termination and connectivity for a transmit fiber and a receive fiber. The small form factor of the LC connector—whether used as a simplex or as a duplexed pair—affords a number of advantages, particularly in high density environment.
Some fiber optic devices include four-port adapters, also referred to as quad adapters, which each comprise four simplex ports arranged horizontally. The ports of these quad adaptors can interface with four corresponding simplex connectors or with two duplex connectors. Currently, there is no standard defining the distance between the two duplex adapters of a quad adapter. Consequently, while there may be benefits to using a four-port connector to engage with these quad adaptors, this lack of spacing standardization creates challenges in designing such a connector, since the distances between the two middle ports can vary between devices.
The above-described deficiencies of current optical connection systems are merely intended to provide an overview of some of the problems of current technology, and are not intended to be exhaustive. Other problems with the state of the art, and corresponding benefits of some of the various non-limiting embodiments described herein, may become further apparent upon review of the following detailed description.
The following presents a simplified summary of the disclosed subject matter in order to provide a basic understanding of some aspects of the various embodiments. This summary is not an extensive overview of the various embodiments. It is intended neither to identify key or critical elements of the various embodiments nor to delineate the scope of the various embodiments. Its sole purpose is to present some concepts of the disclosure in a streamlined form as a prelude to the more detailed description that is presented later.
Various embodiments described herein provide a quad connector assembly that can be used to aggregated multiple simplex fiber optic connectors to yield a composite quad connector that can be plugged into a range of quad adapters having different spacings. To accommodate variable spacings between the two middle ports of a quad adapter, the connector assembly can group the four simplex connectors into two duplex groups and permit each group to slide independently within the connector housing, allowing the distance between the two duplex groups to be varied within a range permitted by the connector while maintaining a consistent standardized spacing between the connectors of each duplex group.
Also, a modular connector organization system is provided that allows customized connector arrays to be easily assembled using modular components. Embodiments of this connector organization system can be used to create an organized connector array compatible with a corresponding array of data ports.
To the accomplishment of the foregoing and related ends, the disclosed subject matter, then, comprises one or more of the features hereinafter more fully described. The following description and the annexed drawings set forth in detail certain illustrative aspects of the subject matter. However, these aspects are indicative of but a few of the various ways in which the principles of the subject matter can be employed. Other aspects, advantages, and novel features of the disclosed subject matter will become apparent from the following detailed description when considered in conjunction with the drawings. It will also be appreciated that the detailed description may include additional or alternative embodiments beyond those described in this summary.
The subject disclosure is now described with reference to the drawings wherein like reference numerals are used to refer to like elements throughout. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the subject disclosure. It may be evident, however, that the subject disclosure may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing the subject disclosure.
In some devices, the distances between adjacent ports 102 may be equal for each pair of adjacent ports 102, such that distance A is equal to distance B. However, since there is currently no standard that dictates the distance B between the two middle ports 102b and 102c, distance B may vary across different devices.
As an alternative to using four simplex connectors or two duplex connectors, a four-port connector— or quad connector— could be used to interface with a quad adapter 100. A single quad connector can be more easily and quickly engaged with, and disengaged from, the quad adapter 100 relative to using four independent simplex connectors or two separate duplex connectors, and can better maintain organization of the individual fibers by preventing twisting of fibers.
However, since the distance B between the two middle simplex ports 102b and 102c can vary between devices, a quad connector design with fixed spacing between ferrules would not be compatible across multiple quad adapters 100 having different distances B between the middle ports 102b and 102c. Consequently, manufacturers of quad connectors that use fixed spacings would have to custom manufacture different versions of their connector with respective different B distances to accommodate different port spacings favored by different device vendors.
To address these and other issues, one or more embodiments described herein provide a quad connector assembly, referred to herein as a floating quad connector, that is compatible with different quad adapters 100 having different spacings between the two middle simplex ports 102b and 102c. In one or more embodiments, the quad connector assembly is designed to hold four simplex connectors in a quad connector arrangement, such that the distance A between the ferrules of the first and second connectors and between the third and fourth connectors remained fixed in accordance with a standardized duplex connector spacing, and the distance B between the second and third connectors (the middle spacing) is permitted to float so that the resulting quad connector can be adapted to interface with any quad adapter 100 regardless of the middle port spacing represented by distance B.
Optical fiber cables 220a-220d are connected to the respective simplex connectors 206a-206b, with the optical fiber of each cable 220a-220d terminating on the ferrules (not shown in
Each of the springs 204a and 204b comprises a flexible rectangular metal sheet that is bent at a substantially right angle to form a horizontal section 304a, 304b and a vertical section 306a, 306b. The bend of each spring 204a, 204b is located nearer to one end of the spring 204a, 204b than the other end, such that the horizontal section 304 is longer than the vertical section 306. Spring 204b resides within the chamber defined by the second end wall 210b, the base plate 216, and the dividing wall 212, such that the horizontal section 304b of the spring 204b rests on the base plate 216 and the vertical section 306b of the spring 204b rests against the end wall 210b. Similarly, spring 204a resides within the chamber defined by the first end wall 210a, the base plate 216, and the dividing wall 212, such that the horizontal section 304a of the spring 204a rests on the base plate 216 and the vertical section 306a (not visible in
A slot 308 is formed in each of the vertical sections 306a, 306b of the springs 204a, 204b. These slots 308a, 308b are sized to accommodate respective elongated rails 214a, 214b formed on the base plate 216. The rails 214a, 214b extend from respective end walls 210a, 210b along the base plate 216 in the lengthwise direction, ending at a location part way between the respective end walls 210a, 210b and the dividing wall 210. Two short raised sections 310a and 310b are also formed on the base plate 216, extending from the respective two sides of the dividing wall 212. The positions and lengths of these short raised sections 310a, 310b are such that a gap is formed between each rail 214a, 214b and its corresponding short raised section 310a, 310b.
The springs 204a, 204b are disposed on the bottom clip 208 such that the rails 214a, 214b are accommodated in the respective slots 308a, 308b of the springs 204a, 204b and the portion 312a, 312b of each horizontal section 304a, 304b that extends beyond the slot 308a, 308b resides in the gap formed between the rail 214a, 214b and its corresponding short raised section 310a, 310b. This arrangement prevents lateral sliding movement of the springs 204a and 204b and properly orients the springs 204a, 204b within their respective chambers of the bottom clip 208.
A spring mechanism 302a, 302b is formed on the vertical section 306a, 306b of each spring 204a, 204b. In the example depicted in
The design of springs 204a. 204b illustrated in
End walls 210a, 210b, dividing wall 212, and spacers 218a, 218b define four separate chambers in which the four simplex connectors 206a-206d can respectively reside. Specifically, a first chamber is defined between end wall 210a and spacer 402a, a second chamber is defined between spacer 402a and dividing wall 212, a third chamber is defined between dividing wall 212 and spacer 402b, and a fourth chamber is defined between spacer 402b and end wall 210b.
The minimum value of distance B between the two connector groups is determined by the thickness of dividing wall 212 (or, in some embodiments, by the sum of the thicknesses of dividing wall 212 and the middle wall of the top clip, as will be described below). This minimum value of distance B is achieved by positioning both connector groups to abut against the dividing wall 212. In some embodiments, the spring mechanisms 302a and 302b (see
If the quad connector assembly 200 is to be plugged into a quad adapter 100 in which the distance B between the two middle ports 102b and 102c (see
Top clip 202 is configured to engage with the bottom clip 208, yielding a housing assembly or enclosure that houses the springs 204a, 204b, the spacers 218a, 218b, and the narrow sections 502 of the simplex connectors 206a-206d. While engaged, the outer end walls 224a and 224b overlap with the end walls 210a and 210b, respectively, of the bottom clip 208, as shown in
In embodiments in which the top clip 202 includes a middle wall 228, this middle wall 228 can abut against the dividing wall 212 of the bottom clip 208 while the top clip 202 and the bottom clip 208 are engaged. To accommodate the middle wall 228, the bottom clip 208 can be designed such that its dividing wall 212 is offset from a centerline 1002 that bisects the front profile of the assembled clips 202 and 208, such that the dividing wall 212 is closer to end wall 210a than to end wall 210b. Similarly, the middle wall 228 of the top clip 202 can be offset from the centerline 1002 in the opposite direction, such that the middle wall 228 is closer to outer end wall 224b than to outer end wall 224a. This arrangement places the point of contact between the middle wall 228 and the dividing wall 212 at or approximately at the centerline 1002. Thus, the middle wall 228 of the top clip 202 and the dividing wall 212 of the bottom clip form an aggregate dividing wall between the Group 1 connectors 202c, 202d and the Group 2 connectors 202a, 202b. In this embodiment, the minimum value of distance B is determined by the combined widths of dividing wall 212 and middle wall 228. This minimum value of distance B is achieved when the Group 1 duplex connector (comprising connectors 206c and 206d) is abutted against middle wall 228, and the Group 2 duplex connector (comprising connectors 206a and 206b) is abutted against the dividing wall 212. When no external force is applied, the spring mechanisms 302a and 302b can apply a force that holds the two groups of connectors in this default position. As noted above, the distance B can be increased from this minimum distance by sliding one or both of the two groups of connectors away from this aggregate dividing wall.
The housings of simplex connectors 206a-206d include elastic latches 602a-602d formed on their top surfaces that serve to latch the connectors within ports 102a-102d while plugged into the adapter 100. When the quad connector assembly 200 is mated with an adapter 100, the upward spring force of the cantilevered latches 602a-602d cause the latches 602a-602d to remain engaged with corresponding latching features in the ports 102a-102d. Applying a downward pressure on the latches 602a-602d causes the latches 602a-602d to disengage from the latching features of the ports 102a-102d, thereby allowing the connectors 206a-206d to be removed.
When the top clip 202 is engaged with the bottom clip 208, the top bar 222 is positioned over, and makes contact with, latches 602a-602d, as shown in
In some embodiments, the simplex connectors 206a-206d used in the quad connector assembly 200 can comprise chamfered front corners to ease entry into the corresponding ports 102a-102d of adapter 100.
While the quad connector assembly 200 has been described and illustrated with reference to a specific embodiment, aspects of the illustrated design can be modified without departing from the scope of one or more embodiments. For example, rather than using four simplex connectors 206a-206d and two spacers 218a and 218b to maintain the fixed distance A for Group 1 and Group 2, the bottom clip 208 and top clip 202 can be configured to accommodate and hold two unibody duplex connectors in a quad arrangement, while allowing the two duplex connectors to slide within the assembly to thereby adjust distance B between the two duplex connectors as needed, depending on the spacing used by the mating adapter.
The quad connector assembly 200 described above can be used to aggregate multiple simplex fiber optic connectors to yield a composite connector that can be plugged into a multi-port fiber adapter. Other types of connector assemblies can also be used to aggregate category-rated jacks, such as RJ-45 connectors, in a similar manner. Such connector assemblies can be useful for interfacing with electronic data switches having arrays of data ports (e.g., a 2×6 array), allowing multiple connectors to be substantially simultaneously plugged into the data port array as a group.
Dividing walls 1202 are formed on the outward-facing surfaces of the two mounting plates 1208a and 1208b. These dividing walls 1202 reside within slots 1214 formed on the mounting plates 1208a and 1208b, which extend from the front edge of the mounting plates to the handle section 1204. Each dividing wall 1202 is anchored to the handle section 1204 at the end of its corresponding slot 1214. The height of each dividing wall 1202 extends perpendicular to the outward-facing surfaces of its mounting plate 1208a, 1208b, and the length of each dividing wall 1202 extends from its anchor point at the handle section 1204 to the front edge of the mounting plate 1208a. The width of each dividing wall 1202 is smaller than the width of its corresponding slot 1214, allowing the dividing wall 1202 to flex sideways within the slot 1214 (that is, orthogonal to the surface of the mounting plates 1208a, 1208b).
Slots 1214 divide each mounting plate 1208a, 1208b into flexible planks 1206 on which connectors can be mounted.
The gap 1212 between the two mounting plates 1208a and 1208b permits the planks 1206 of the two mounting plates 1208a, 1208b to flex vertically. Also, as noted above, each dividing wall 1202 is permitted to flex horizontally within its corresponding slot 1214 of the two mounting plates 1208. These degrees of freedom permit the same switch module 2000 to accommodate different data port arrays having different port-to-port spacings by allowing the horizontal and vertical spacings between the connectors 1602 to float as needed.
Although
As another approach to accommodating devices having different numbers of ports and different port-to-port spacings, a modular connector system can be provided to allow data connector assemblies to be built in a customized manner to interface with a given device (e.g., a switch or a patch panel device). Such a modular system can offer a number of individual components that can be assembled into customized structure for clustering cables and their associated data connectors to yield a connector assembly that is compatible with the mating device.
Multi-user telecommunications outlet assemblies (MUTOAs) are connectivity devices comprising multiple data outlets designed to provide voice and data connectivity for multiple workstations. While the ANSI/TIA-568 Standard dictates that no more than 12 user workstations should be serviced from a single MUTOA, the number of available data ports can vary across different MUTOAs, and can conform to a variety orientations (e.g., 2×2, 12×4, 12×6, 3×4, etc.). Given this range of sizing possibilities, there is no single connector housing device that is compatible for all MUTOA applications.
To address these and other issues, a modular MUTOA system can be provided that allows a suitable connector management structure to be assembled from modular components to suit the requirements of a given MUTOA application.
Each modular housing 2202 also includes at least one of a dovetail socket 2216 or a dovetail pin 2214. For example, modular housing 2202a has a single dovetail pin 2214 formed along one side of its main body 2210, while modular housing 2202b has a dovetail socket 2216 formed along one side of its main body 2210. Modular housing 2202c has a dovetail socket 2216 formed along a first side of its main body 2210 and a dovetail pin 2214 formed along a second side of its main body 2212 opposite the first side. Modular housing 2202d has two dovetail sockets 2216a, 2216b formed along two adjacent sides of its main body 2210, and two dovetail pins 2214a, 2214b formed along the remaining two adjacent sides of the main body 2210.
Although the connection features formed on the modular housings 2202 are illustrated and described herein as being dovetail sockets 2216 and dovetail pins 2214, any suitable type of connection feature is within the scope of one or more embodiments. For example, another type of male connection feature can be used in place of the dovetail pins 2214, while another type of female connection feature can be used in place of dovetail sockets 2214.
In some embodiments, the modular housings 2202 can include markable surfaces on at least one side of the main body 2210 so that each modular housing 2202 can be labeled with such information as a port identifier, device number, identification of a longest permitted patch cord, or other such information.
The modular housings 2202 can also be used with accessories to create custom configurations.
Brackets of other shapes and configurations are also within the scope of one or more embodiments. For example,
A floating mechanism 2708 is also built into the main body 2704 between the openings 2706. This floating mechanism 2708 permits the spacing between the openings 2706 to float within a range of movement, thereby allowing the organizer 2702 to adjust the connector spacings as necessary to properly interface interface with data port arrays of different spacings. Any suitable floating mechanism 2708 is within the scope of one or more embodiments. For example, in some embodiments, the floating mechanism 2708 can comprise an elastic material formed between the openings 2706. In other embodiments, the floating mechanism 2708 may be part a mechanical adjustment system whereby the spacing can be adjusted via mechanical control (e.g., by turning an adjustment screw.
The above description of illustrated embodiments of the subject disclosure, including what is described in the Abstract, is not intended to be exhaustive or to limit the disclosed embodiments to the precise forms disclosed. While specific embodiments and examples are described herein for illustrative purposes, various modifications are possible that are considered within the scope of such embodiments and examples, as those skilled in the relevant art can recognize.
In this regard, while the disclosed subject matter has been described in connection with various embodiments and corresponding figures, where applicable, it is to be understood that other similar embodiments can be used or modifications and additions can be made to the described embodiments for performing the same, similar, alternative, or substitute function of the disclosed subject matter without deviating therefrom. Therefore, the disclosed subject matter should not be limited to any single embodiment described herein, but rather should be construed in breadth and scope in accordance with the appended claims below.
In addition, the term “or” is intended to mean an inclusive “or” rather than an exclusive “or.” That is, unless specified otherwise, or clear from context, “X employs A or B” is intended to mean any of the natural inclusive permutations. That is, if X employs A; X employs B; or X employs both A and B, then “X employs A or B” is satisfied under any of the foregoing instances. Moreover, articles “a” and “an” as used in the subject specification and annexed drawings should generally be construed to mean “one or more” unless specified otherwise or clear from context to be directed to a singular form.
What has been described above includes examples of systems and methods illustrative of the disclosed subject matter. It is, of course, not possible to describe every combination of components or methodologies here. One of ordinary skill in the art may recognize that many further combinations and permutations of the claimed subject matter are possible. Furthermore, to the extent that the terms “includes,” “has,” “possesses,” and the like are used in the detailed description, claims, appendices and drawings such terms are intended to be inclusive in a manner similar to the term “comprising” as “comprising” is interpreted when employed as a transitional word in a claim.
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