In the field of data communications, communications networks typically utilize telecommunications cable lines designed to maintain the integrity of signals being transmitted via the network. Telecommunications cable lines are typically connected into port or jack terminals using connector plugs that enable the cables to be easily connected and disconnected. The cable lines are typically comprised of twisted pairs of wires surrounded by a cable jacket. Quick connect cables are often constructed by securing a connector plug to the ends of the twisted wire pairs and sliding the connector plug into a matching port terminal where it locks into place with a simple lever lock. An RJ45 type connector is one example.
Crosstalk can negatively affect signal integrity in the telecommunications cable lines. Crosstalk is unbalanced noise caused by capacitive and/or inductive coupling between parallel wires. Furthermore, existing connector plug arrangements can be difficult to terminate in the field. For these and other reasons, improvements are desirable.
One aspect relates to a modular plug for terminating a telecommunications cable. The modular plug includes a housing defining an internal cavity. A wire manager is fitted within the internal cavity of the housing. The wire manager includes a plurality of channels, each channel having a gate configured to position a twisted pair of wires from the telecommunications cable. A load bar is fitted within the internal cavity of the housing. The load bar defines an array of external grooves, each external groove being configured to receive a wire from each twisted pair of wires. The modular plug further includes a plurality of wire contacts that are aligned with the array of external grooves.
The load bar may include an internal cavity having a top surface and a bottom surface that converge into the array of external grooves. The top surface and the bottom surface each include a series of internal grooves that funnel into the array of external grooves.
Each gate on the wire manager may include opposing surfaces that diverge in opposite directions, the opposing surfaces being configured to guide a wire from each twisted pair of wires into the internal cavity of the load bar. The array of external grooves on the load bar are parallel and are arranged in the same vertical plane. In some examples, the load bar is configured to snap-fit onto the front portion of the wire manager. The load bar may include notches configured to latch onto corresponding notches on the front portion of the wire manager.
In one example, the gates are offset along the long axis of the wire manager. In another example, the wire manager defines three columns and two rows of channels. In certain examples, the front portion of the wire manager is tapered and is configured to pinch the twisted pairs of wires. The front portion of the wire manager may include tabs configured to snap-fit into corresponding slots on the housing.
In some examples, the wire manager includes a rear portion having an aperture configured to receive a terminal end of the telecommunications cable, the rear portion having a plurality of ribs that define orthogonal edges on exterior surfaces of the wire manager, and the orthogonal edges being configured to receive an anti-snag protector. The aperture on the rear portion of the wire manager may include a form factor configured to fit around the shape of the telecommunications cable, the form factor having ribs that define an internal circumference inside the aperture of the wire manager that is configured to grip a jacket of the telecommunications cable.
The housing may include an array of slots along a leading edge of a first end of the housing, each wire contact is received by a slot of the housing and is configured to electrically connect the twisted pairs of wires in the telecommunications cable to the contact springs of a telecommunications jack. The housing may further include a latching handle configured to secure the modular plug to a receptacle.
In some examples, the modular plug includes an anti-snag protector configured to attach to the wire manager, the anti-snag protector having an arm that extends from a base, the arm being configured to prevent the latching handle from being snagged. The base may include a depression configured to receive a form factor of the aperture on the rear portion of the wire manager. In some examples, the anti-snag protector is configured to snap-fit onto the rear portion of the wire manager. For example, the anti-snag protector includes sides each extending outwardly from the base and each having a latching member at a distal end, the sides being configured to flex around the rear portion of the wire manager and the latching members being configured to engage orthogonal edges on the rear portion of the wire manager.
The gates may have a smallest dimension that is less than twice the diameter of a single wire from each twisted pair of wires. In some examples, each gate is configured to hold a twisted pair of wires from the telecommunications cable in a stacked vertical arrangement.
In another aspect, the present disclosure relates to a telecommunications cable terminated by a modular plug in accordance with the aforementioned features.
In another aspect, a method of terminating a telecommunications cable with a modular plug comprises: attaching a wire manager to a terminal end of a telecommunications cable; using gates on the wire manager to hold twisted pairs of wires from the telecommunications cable; straightening the twisted pairs of wires; sliding a load bar onto the straightened wires; trimming the straightened wires to be flush with a distal end of the load bar; attaching a housing to the wire manager; and crimping wire contacts housed inside the housing to contact the wires.
In some examples, the method may further comprise attaching an anti-snag protector to the wire manager. Also, the method may further comprise trimming the wires to have a predetermined length that extends outside a front portion of the wire manager. Additionally, the method may further comprise attaching the load bar to the wire manager.
A variety of additional inventive aspects will be set forth in the description that follows. The inventive aspects can relate to individual features and to combinations of features. It is to be understood that both the forgoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the broad inventive concepts upon which the examples disclosed herein are based.
The following drawing figures, which form a part of this application, are illustrative of described technology and are not meant to limit the scope of the disclosure in any manner.
Various embodiments will be described in detail with reference to the drawings, wherein like reference numerals represent like parts and assemblies throughout the several views. Reference to various embodiments does not limit the scope of the claims attached hereto. Additionally, any examples set forth in this specification are not intended to be limiting and merely set forth some of the many possible embodiments for the appended claims.
As shown in
As shown in
Referring now to
As shown in
Additionally, the rear portion 314 of the wire manager 300 includes a plurality of ribs 306 that define orthogonal edges 308 on exterior surfaces of the wire manager 300. The orthogonal edges 308 are configured to receive the anti-snag protector 400. As will be described in more detail, the anti-snag protector 400 is configured to snap-fit onto the wire manager 300.
The rear portion 314 of the wire manager 300 further includes an aperture 310 configured to receive a terminal end of the telecommunications cable 10. The aperture 310 includes a form factor 304 configured to fit around the shape of the telecommunications cable 10. For example, the form factor 304 can have a circular shape while the rear portion 314 of the wire manager 300 can have a substantially rectangular shape. Other configuration are possible.
As shown in
When assembled, a portion of the jacket of the telecommunications cable 10 is stripped and the exposed twisted pairs of wires extend through the wire manager 300 before reaching the internal cavity 216 of the housing 200 and the array of wire contacts 110. The wire manager 300 includes a plurality of channels 316 that are equally spaced apart. Each channel 316 receives a twisted pair of wires. In the example shown, the wire manager 300 includes three columns and two rows of channels 316 such that the wire manager 300 includes six channels 316. For example, the wire manager 300 can include three vertical columns, an upper row, and a lower row of channels 316. As described above, the telecommunications cable 10 includes four twisted pairs of wires. Accordingly, when the telecommunications cable 10 is terminated by the modular plug 100, at least two channels 316 of the wire manager 300 remain empty and unused.
In alternative examples, the wire manager 300 can define a greater or lesser number of channels 316 as may be needed or desired for a particular application. For example, the wire manager 300 can define four, five, seven, or eight channels. Other configurations are possible.
As shown in
Each gate 318 defines the smallest dimension of each channel 316 to be substantially similar to the diameter of a single wire from each twisted pair of wires. In some examples, each gate 318 has a smallest dimension that is less than twice the diameter of a single wire. In some further examples, each gate 318 has a smallest dimension that is equal to or less than the diameter of a single wire from each twisted pair of wires. Each gate 318 of the wire manager 300 positions a twisted pair of wires such that the wires are only able to pass through each gate 318 in a stacked arrangement. In some examples, each gate 318 has a height that is equal to or greater than the combined diameter of two wires positioned side by side. In some further examples, each gate 318 is sized and shaped to engage a twisted pair of wires on both sides of the twisted pair to hold the twisted pair of wires in a stacked vertical arrangement.
Advantageously, the gates 318 of the wire manager 300 maintain the twist and spacing between the twisted pairs of wires before the wires reach the load bar 500 and the wire contacts 110. By maintaining the twist and spacing, the wire manager 300 substantially reduces crosstalk between the wires inside the modular plug 100, and thus substantially improves the performance of the modular plug 100. Additionally, the gates 318 can hold the twisted pairs of wires making it easier for a technician to untwist the wires.
Referring now to
Still referring to
Referring now to
The body 502 defines an internal cavity 504 that includes a series of internal grooves 508 that funnel into an array of external grooves 512. The internal grooves 508 are positioned on a top surface 514 and a bottom surface 516 of the internal cavity 504, and the top surface 514 and bottom surface 516 converge into the array of external grooves 512.
Each groove in the array of external grooves 512 is sized and shaped to receive a single wire from the twisted pairs of wires in the telecommunications cable 10. As described above, each wire from the twisted pairs of wires is guided by the gates 318 of the wire manager 300 into the load bar 500, and the internal grooves 508 positioned on the top surface 514 and the bottom surface 516 of the internal cavity 504 funnel the wires into the array of external grooves 512. In the example shown, the array of external grooves 512 are parallel and are arranged in the same vertical plane. In other examples, the array of external grooves 512 are vertically offset where, for example, a first row of external grooves is positioned in a first vertical plane and a second row of external grooves is positioned in a second vertical plane, and where the first vertical plane is different from the second vertical plane. Other configurations are possible.
When the modular plug 100 is assembled, the array of external grooves 512 is configured to position each wire from the twisted pairs of wires such that each wire is aligned with a wire contact 110. In the example shown, each groove in the array of external grooves 512 is exposed (e.g., uncovered) at the front portion of the load bar 500.
A crimping tool is used to crimp the wire contacts 110 into each wire positioned by the array of external grooves 512. In this manner, the modular plug 100 can field terminate the telecommunications cable 10 such that each wire contact 110 can electrically connect the twisted pairs of wires inside the cable to the contact springs of a telecommunications jack.
Next, the method 600 includes a step 604 of attaching the wire manager 300.
The method 600 further includes a step 606 of straightening the wires 710.
Next, the method 600 includes a step 608 of trimming the wires to have a predetermined length that extends outside the front portion of the wire manager 300. The wire cutter 730 is used to trim the wires. In some examples, the wires are trimmed to extend about ½ inch outside the gates 318 of the wire manager 300.
Next, the method 600 includes a step 610 of sliding the load bar 500 onto the wires 710 and attaching the load bar 500 to the wire manager 300.
Next, the method 600 includes a step 612 of trimming the wires to be flush with the distal end of the load bar 500. The wire cutter 730 may be used to trim the wires.
Next, the method 600 includes a step 614 of attaching the housing 200 to the wire manager 300. As described above, the wire manager 300 snap-fits into the housing 200.
Next, the method 600 includes a step 616 of crimping the wire contacts housed inside the housing 200 to contact the wires received by the load bar 500.
Next, the method 600 includes a step 618 of attaching the anti-snag protector 400 to the wire manager 300. As described above, the anti-snag protector 40 snap-fits onto the wire manager 300.
The various embodiments described above are provided by way of illustration only and should not be construed to limit the claims attached hereto. Those skilled in the art will readily recognize various modifications and changes that may be made without following the example embodiments and application illustrated and described herein, and without departing from the true spirit and scope of the following claims.
This application is a National Stage Application of PCT/US2019/063635, filed on Nov. 27, 2019, which claims the benefit of U.S. Patent Application Ser. No. 62/773,825, filed on Nov. 30, 2018, the disclosures of which are incorporated herein by reference in their entireties. To the extent appropriate, a claim of priority is made to each of the above disclosed applications.
Filing Document | Filing Date | Country | Kind |
---|---|---|---|
PCT/US2019/063635 | 11/27/2019 | WO |
Publishing Document | Publishing Date | Country | Kind |
---|---|---|---|
WO2020/113023 | 6/4/2020 | WO | A |
Number | Name | Date | Kind |
---|---|---|---|
5888100 | Bofill et al. | Mar 1999 | A |
5899770 | Ezawa | May 1999 | A |
5989071 | Larsen | Nov 1999 | A |
6056586 | Lin | May 2000 | A |
6109954 | Lin | Aug 2000 | A |
6238231 | Chapman et al. | May 2001 | B1 |
6250949 | Lin | Jun 2001 | B1 |
6280232 | Beecher et al. | Aug 2001 | B1 |
6358092 | Siemon et al. | Mar 2002 | B1 |
6402559 | Marowsky et al. | Jun 2002 | B1 |
6409535 | Marowsky et al. | Jun 2002 | B1 |
6506077 | Nagel et al. | Jan 2003 | B2 |
6565262 | Childers et al. | May 2003 | B2 |
6579116 | Brennan et al. | Jun 2003 | B2 |
6729901 | Aekins | May 2004 | B2 |
6811445 | Caveney et al. | Nov 2004 | B2 |
7018241 | Caveney et al. | Mar 2006 | B2 |
7168994 | Caveney et al. | Jan 2007 | B2 |
7175468 | Chang | Feb 2007 | B1 |
7220149 | Pharney | May 2007 | B2 |
7223112 | AbuGhazaleh et al. | May 2007 | B2 |
7294012 | AbuGhazaleh et al. | Nov 2007 | B2 |
7374450 | Chang | May 2008 | B1 |
7384298 | Caveney et al. | Jun 2008 | B2 |
7404739 | Shields et al. | Jul 2008 | B2 |
7438583 | AbuGhazaleh et al. | Oct 2008 | B2 |
7556536 | Caveney et al. | Jul 2009 | B2 |
7621772 | Tobey | Nov 2009 | B1 |
7874865 | Tobey | Jan 2011 | B2 |
7972183 | Lin | Jul 2011 | B1 |
8277260 | Caveney et al. | Oct 2012 | B2 |
8348702 | Lin | Jan 2013 | B2 |
8702453 | Caveney et al. | Apr 2014 | B2 |
9054440 | Taylor et al. | Jun 2015 | B2 |
9214759 | Mattson et al. | Dec 2015 | B2 |
9413154 | Taylor et al. | Aug 2016 | B2 |
9448370 | Xue et al. | Sep 2016 | B2 |
10411398 | Pepe et al. | Sep 2019 | B2 |
11158980 | Anderson et al. | Oct 2021 | B2 |
20020048990 | Marowsky et al. | Apr 2002 | A1 |
20020142644 | Aekins | Oct 2002 | A1 |
20040002252 | Hirokawa | Jan 2004 | A1 |
20050106929 | Meckley et al. | May 2005 | A1 |
20060189200 | Ma | Aug 2006 | A1 |
20110053431 | Bopp et al. | Mar 2011 | A1 |
20120088412 | Mattson et al. | Apr 2012 | A1 |
20120315786 | Lin | Dec 2012 | A1 |
20130052860 | Caveney et al. | Feb 2013 | A1 |
20130157500 | Mattson et al. | Jun 2013 | A1 |
20150207283 | Guitard et al. | Jul 2015 | A1 |
20150295350 | Bragg | Oct 2015 | A1 |
20150340823 | Stanislaw et al. | Nov 2015 | A1 |
20160036179 | Bragg et al. | Feb 2016 | A1 |
20180226743 | Pepe et al. | Aug 2018 | A1 |
20180226753 | Patel | Aug 2018 | A1 |
20200176932 | Anderson | Jun 2020 | A1 |
Number | Date | Country |
---|---|---|
1131828 | Sep 1996 | CN |
1 014 498 | Jun 2000 | EP |
1 188 204 | Aug 2008 | EP |
2005048412 | May 2005 | WO |
2017027722 | Feb 2017 | WO |
Entry |
---|
Extended European Search Report for Application No. 19890657.0 dated Jun. 30, 2022. |
International Search Report and Written Opinion of the International Searching Authority for International Patent Application No. PCT/US2019/063635 dated Mar. 27, 2020, 12 pages. |
Number | Date | Country | |
---|---|---|---|
20220115807 A1 | Apr 2022 | US |
Number | Date | Country | |
---|---|---|---|
62773825 | Nov 2018 | US |