AU2016317828A1 - Device for distributing hybrid trunk cable - Google Patents
Device for distributing hybrid trunk cable Download PDFInfo
- Publication number
- AU2016317828A1 AU2016317828A1 AU2016317828A AU2016317828A AU2016317828A1 AU 2016317828 A1 AU2016317828 A1 AU 2016317828A1 AU 2016317828 A AU2016317828 A AU 2016317828A AU 2016317828 A AU2016317828 A AU 2016317828A AU 2016317828 A1 AU2016317828 A1 AU 2016317828A1
- Authority
- AU
- Australia
- Prior art keywords
- transition
- cords
- power
- fiber optic
- cup
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000007704 transition Effects 0.000 claims abstract description 96
- 239000000835 fiber Substances 0.000 claims abstract description 46
- 239000013307 optical fiber Substances 0.000 claims abstract description 31
- 239000004020 conductor Substances 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 18
- 239000004593 Epoxy Substances 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006750 UV protection Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000008258 liquid foam Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/10—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes
- H02G15/117—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes for multiconductor cables
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4415—Cables for special applications
- G02B6/4416—Heterogeneous cables
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4415—Cables for special applications
- G02B6/4416—Heterogeneous cables
- G02B6/44265—Fibre-to-antenna cables; Auxiliary devices thereof
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/44386—Freeze-prevention means
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/4471—Terminating devices ; Cable clamps
- G02B6/4472—Manifolds
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0462—Tubings, i.e. having a closed section
- H02G3/0481—Tubings, i.e. having a closed section with a circular cross-section
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Cable Accessories (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
A transition assembly for a hybrid trunk cable includes: a hybrid trunk cable comprising a plurality of power conductors and a plurality of optical fibers surrounded by a jacket; a transition cup having a cavity, the hybrid trunk cable entering a first end of the transition cup; a plurality of power cords exiting a second end of the transition cup, each of the power cords electrically connected to a respective power conductor; a plurality of fiber optic cords exiting the second end of the transition cup, each of the fiber optic cords optically connected to a respective optical fiber; and a weather-resistant material residing in the cavity of the transition cup to protect the power cords and the fiber optic cords within the cavity.
Description
[0001] The present application claims priority from and the benefit of U.S Provisional Patent Application No. 62/214,501, filed September 4, 2015, the disclosure of which is hereby incorporated herein in its entirety.
Field of the Invention [0002] The present invention is directed generally to communications cable and equipment, and more particularly to distribution from hybrid cables.
Background [0003] Latest developments in technology for delivering power and data in wireless infrastructure use hybrid cables, wherein the term “hybrid cable” is intended to mean a cable that includes both power conductors and one or more fiber optic cords or cables. An exemplary hybrid cable is the HFF cable, available from CommScope, Inc. (Joliet, Illinois). Unlike RFbased systems, a single hybrid trunk cable can be used to power multiple sectors, thereby eliminating multiple runs of RF cable. However, in order to use a single hybrid trunk cable, at some point the trunk cable must transition to jumper cables. Typically, these are distributed
WO 2017/040476
PCT/US2016/049406 inside an enclosure that transitions the trunk conductor gauge to the jumper conductor gauge and connects the optical fibers in the trunk to the optical fibers in the jumper cables. Currently, transitions are achieved by making connections inside the enclosure, requiring it to be opened, cables to be fed/mated to the enclosure, and power and fiber connections to be made, all in the field (e.g., on the top of cell sites near a remote radio unit (RRU)). This practice can create many issues for installers, including time, safety, connection errors (such as loose power connections and/or poor fiber cleaning), and more opportunity for connector damage.
Summary [0004] As a first aspect, embodiments of the invention are directed to a transition assembly for a hybrid trunk cable, comprising: a hybrid trunk cable comprising a plurality of power conductors and a plurality of optical fibers surrounded by a jacket; a transition cup having a cavity, the hybrid trunk cable entering a first end of the transition cup; a plurality of power cords exiting a second end of the transition cup, each of the power cords electrically connected to a respective power conductor; a plurality of fiber optic cords exiting the second end of the transition cup, each of the fiber optic cords optically connected to a respective optical fiber; and a weather-resistant material residing in the cavity of the transition cup to protect the power cords and the fiber optic cords within the cavity.
[0005] As a second aspect, embodiments of the invention are directed to a transition assembly for a hybrid trunk cable, comprising: a hybrid trunk cable comprising a plurality of power conductors and a plurality of optical fibers surrounded by a jacket; a transition cup having a cavity, the hybrid trunk cable entering a first end of the transition cup; a plurality of power cords exiting a second end of the transition cup, each of the power cords electrically connected to a respective power conductor; a plurality of fiber optic cords exiting the second end of the transition cup, each of the fiber optic cords optically connected to a respective optical fiber; and a weather-resistant gasket residing in the cavity of the transition cup to protect the power cords and the fiber optic cords within the cavity.
[0006] As a third aspect, embodiments of the invention are directed to a transition assembly for a hybrid trunk cable, comprising: a hybrid trunk cable comprising a plurality of power conductors and a plurality of optical fibers surrounded by a jacket; a transition cup having a cavity, the hybrid trunk cable entering a first end of the transition cup; a plurality of power cords
WO 2017/040476
PCT/US2016/049406 exiting a second end of the transition cup, each of the power cords spliced to a respective power conductor; a plurality of fiber optic cords exiting the second end of the transition cup, each of the fiber optic cords spliced to a respective optical fiber; and a weather-resistant material residing in the cavity of the transition cup to protect the power cords and the fiber optic cords within the cavity.
Brief Description of the Figures [0007] FIG. 1 is a schematic view of a transition assembly according to embodiments of the present invention.
[0008] FIG. 2 is a section view of the cup of the transition assembly of FIG. 1.
[0009] FIG. 3 is a perspective cutaway view of a cup for a transition assembly according to embodiments of the invention.
[0010] [0011] [0012]
FIG. 4 is a perspective view of a gasket of the transition assembly of FIG. 3.
FIG. 5 is a perspective view of a cap of the transition assembly of FIG. 3.
FIG. 6 is a perspective cutaway view of the transition assembly of FIG. 3 with fiber optic and power cables in place.
Detailed Description [0013] The present invention is described with reference to the accompanying drawings, in which certain embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments that are pictured and described herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. It will also be appreciated that the embodiments disclosed herein can be combined in any way and/or combination to provide many additional embodiments.
[0014] Unless otherwise defined, all technical and scientific terms that are used in this disclosure have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the below description is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this disclosure, the singular forms a, an and the are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that
WO 2017/040476
PCT/US2016/049406 when an element (e.g., a device, circuit, etc.) is referred to as being connected or coupled to another element, it can be directly connected or coupled to the other element or intervening elements may be present. In contrast, when an element is referred to as being directly connected or directly coupled to another element, there are no intervening elements present. [0015] Referring now to the drawings, a transition assembly, designated broadly at 10, is shown in FIGS. 1 and 2. The assembly 10 includes a hybrid trunk cable 12, a transition cup 40, power cords 28, and fiber optic cords 22.
[0016] Referring to FIG. 2, the transition cup 40 is generally cylindrical and may be formed of any suitable material, including metals and polymers. The transition cup 40 includes a main body 42 that defines a central cavity 44. At one end, the transition cup has a collar 46. The transition cup 40 is open at the opposite end.
[0017] The hybrid trunk cable 12, which has a plurality of power conductors 13 and a plurality of optical fibers 14 encased in a jacket 15, enters the transition cup 40 through the collar 46. A heat shrink sleeve 50 seals the interface between the jacket 15 and the collar 46. Within the cavity 44 of the transition cup 40, the power conductors 13 of the hybrid trunk cable 12 are spliced into the power cords 28 that exit the opposite, open end of the transition cup 40.
Similarly, the optical fibers of the hybrid trunk cable 12 are spliced into the fiber optic cords 22 that exit the opposite end of the transition cup 40; these are protected with furcation tubes 24. At their opposite ends, the power cords 28 and the fiber optic cords 22 are terminated with appropriate connectors 30, 26.
[0018] Typically, the power cords 28 and fiber optic cords 22 extend between about 0.5 and 50 meters from the transition cup 40, with a length of 0.75 meters being more typical. Also, those of skill in this art will appreciate that different numbers of power conductors 13 and optical fibers 14 may be included, as may different numbers of power cords 28 and fiber optic cords 22 [0019] Once the power conductors 13 have been spliced to the power cords 28 and the optical fibers 14 have been spliced to the fiber optic cords 22, the cavity 44 of the transition cup 40 is filled (typically from the open end) with a weather-resistant material 48 such as an adhesive or potting compound. Typical weather-resistant materials include epoxy, polyurethane, and mixtures thereof, that can be added in liquid form to the transition cup 40 and allowed to harden/freeze in place. Weather-resistant properties may. include water, chemical, and UV resistance.
WO 2017/040476
PCT/US2016/049406 [0020] The level of weather-resistant material 48 should be sufficient to engulf the splices of the power conductors/cords 13/28 and the optical fibers/fiber optic cords 14/22. This material 48 maintains the conductors 13, optical fibers 14, power cords 28 and fiber optic cords 22 in place while protecting the spliced areas from weather and other external factors.
[0021] Typically, the hybrid trunk cable 12 is routed from the base of an antenna tower or similar structure to a location adjacent a piece of equipment (such as an RRU) mounted on the structure. The power cords 28 are then connected to the equipment via the connectors 30 and the optical fibers 24 are connected to the equipment via the fiber optic connectors 26.
[0022] Those of skill in this art will appreciate that the transition device 10 may take other forms. The transition cup 40 may take a different shape. In some embodiments, the cavity 44 of the transition cup 40 may be partially filled with a filler (such as a liquid foam) to reduce the amount of epoxy required to protect the spliced areas. Transitions from (a) power conductor 13 to power cord 28 and/or (b) optical fiber 14 to fiber optic cord 22 may be achieved by means other than splicing. Other configurations will also be apparent to those of skill in this art.
[0023] Referring now to FIGS. 3-6, an alternative embodiment of a transition cup, designated broadly at 140, is shown therein. The transition cup 140 includes a gasket 150 (see FIG. 4) and a cap 160 (see FIG. 5) within the cavity 144. The gasket 150 includes holes 154 for receiving fiber optic cords 122 and holes 156 for receiving power cords 122 (see FIGS. 4 and 6). The cap 160 includes holes 164 for receiving fiber optic cords 122 and holes 166 for receiving power cords 122 (see FIGS. 5 and 6). The gasket 150 and cap 160 are maintained in place in shoulders 145,147 on the inner surface of the main body 142 of the transition cup 140 (the gasket 150 may be an interference fit, and the cap 160 may be held in place via an adhesive).
The gasket 150 should be positioned such that the transition areas (i.e., the splices) of the power and fiber optic interconnections are between the collar end of the transition cup 140 and the gasket 150.
[0024] The gasket 150 and cap 160 can help to maintain the power cords 128 and fiber optic cords 122 in an organized arrangement as they exit the transition cup 140, and can provide a weather-resistant seal. In some embodiments, the cavity 144 of the transition cup 140 may be filled with a weather-resistant material as described above. Also, in other embodiments, either the gasket 150 or the cap 160 may be omitted.
WO 2017/040476
PCT/US2016/049406 [0025] The foregoing is illustrative of the present invention and is not to be construed as limiting thereof. Although exemplary embodiments of this invention have been described, those skilled in the art will readily appreciate that many modifications are possible in the exemplary embodiments without materially departing from the novel teachings and advantages of this invention. Accordingly, all such modifications are intended to be included within the scope of this invention as defined in the claims. The invention is defined by the following claims, with equivalents of the claims to be included therein.
Claims (18)
1. A transition assembly for a hybrid trunk cable, comprising:
a hybrid trunk cable comprising a plurality of power conductors and a plurality of optical fibers surrounded by a jacket;
a transition cup having a cavity, the hybrid trunk cable entering a first end of the transition cup;
a plurality of power cords exiting a second end of the transition cup, each of the power cords electrically connected to a respective power conductor;
a plurality of fiber optic cords exiting the second end of the transition cup, each of the fiber optic cords optically connected to a respective optical fiber; and a weather-resistant material residing in the cavity of the transition cup to protect the power cords and the fiber optic cords within the cavity.
2. The transition assembly defined in Claim 1, wherein the weather-resistant material comprises epoxy and/or polyurethane.
3. The transition assembly defined in Claim 1, wherein each power cord is spliced to its respective power conductor within the cavity.
4. The transition assembly defined in Claim 1, wherein each optical fiber is spliced to its respective fiber optic cord within the cavity.
5. The transition assembly defined in Claim 1, wherein each optical fiber passes through the transition cup to merge with a respective fiber optic cord.
6. The transition assembly defined in Claim 3, wherein the splices of the power conductors and power cords are engulfed in the weather resistant-material.
7. The transition assembly defined in Claim 4, wherein the splices of the optical fibers and the fiber optic cords are engulfed in the weather-resistant material.
WO 2017/040476
PCT/US2016/049406
8. A transition assembly for a hybrid trunk cable, comprising:
a hybrid trunk cable comprising a plurality of power conductors and a plurality of optical fibers surrounded by a jacket;
a transition cup having a cavity, the hybrid trunk cable entering a first end of the transition cup;
a plurality of power cords exiting a second end of the transition cup, each of the power cords electrically connected to a respective power conductor;
a plurality of fiber optic cords exiting the second end of the transition cup, each of the fiber optic cords optically connected to a respective optical fiber; and a weather-resistant gasket residing in the cavity of the transition cup to protect the power cords and the fiber optic cords within the cavity.
9. The transition assembly defined in Claim 8, wherein the cavity is filled with a weather-resistant material between the gasket and the first end of the transition cup.
10. The transition assembly defined in Claim 8, further comprising a cap fitted to the second end of the transition cup.
11. The transition assembly defined in Claim 8, wherein each power cord is spliced to its respective power conductor within the cavity.
12. The transition assembly defined in Claim 8, wherein each optical fiber is spliced to its respective fiber optic cord within the cavity.
13. The transition assembly defined in Claim 8, wherein each optical fiber passes through the transition cup to merge with a respective fiber optic cord.
14. The transition assembly defined in Claim 11, wherein the splices of the power conductors and power cords are positioned between the first end of the transition cup and the gasket.
WO 2017/040476
PCT/US2016/049406
15. The transition assembly defined in Claim 12, wherein the splices of the optical fibers and the fiber optic cords are positioned between the first end of the transition cup and the gasket.
16. A transition assembly for a hybrid trunk cable, comprising:
a hybrid trunk cable comprising a plurality of power conductors and a plurality of optical fibers surrounded by a jacket;
a transition cup having a cavity, the hybrid trunk cable entering a first end of the transition cup;
a plurality of power cords exiting a second end of the transition cup, each of the power cords spliced to a respective power conductor;
a plurality of fiber optic cords exiting the second end of the transition cup, each of the fiber optic cords spliced to a respective optical fiber; and a weather-resistant material residing in the cavity of the transition cup to protect the power cords and the fiber optic cords within the cavity.
17. The transition assembly defined in Claim 16, wherein the weather-resistant material comprises epoxy and/or polyurethane.
18. The transition assembly defined in Claim 16, wherein the splices of the power conductors and power cords are engulfed in the weather resistant-material, and wherein the splices of the optical fibers and the fiber optic cords are engulfed in the weather-resistant material.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201562214501P | 2015-09-04 | 2015-09-04 | |
| US62/214,501 | 2015-09-04 | ||
| PCT/US2016/049406 WO2017040476A1 (en) | 2015-09-04 | 2016-08-30 | Device for distributing hybrid trunk cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2016317828A1 true AU2016317828A1 (en) | 2018-02-01 |
| AU2016317828B2 AU2016317828B2 (en) | 2021-02-25 |
Family
ID=58189042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2016317828A Ceased AU2016317828B2 (en) | 2015-09-04 | 2016-08-30 | Device for distributing hybrid trunk cable |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3345196A4 (en) |
| CN (1) | CN107924740B (en) |
| AU (1) | AU2016317828B2 (en) |
| WO (1) | WO2017040476A1 (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6948976B2 (en) * | 2004-03-01 | 2005-09-27 | Andrew Corporation | Cable and apparatus interface environmental seal |
| CA2713405C (en) * | 2008-02-01 | 2014-04-15 | Quick Connectors, Inc. | Segmented decompression resistant cable splice and method of installation |
| AU2011304689C1 (en) * | 2010-09-21 | 2024-05-09 | Huber+Suhner Ag | Environmentally sealed cable breakout assemblies |
| WO2013142453A1 (en) * | 2012-03-19 | 2013-09-26 | Coate Brian D | Apparatus and method for splicing all-dielectric self-supporting fiber optic cable |
| BR112014019679A8 (en) * | 2012-03-21 | 2017-07-11 | Huber+Suhner Ag | ENVIRONMENTALLY SEALED LEAKAGE CABLE ASSEMBLIES |
| US8842954B2 (en) * | 2012-05-02 | 2014-09-23 | Corning Cable Systems Llc | Cable assembly |
| US8737786B1 (en) * | 2013-02-14 | 2014-05-27 | Corning Cable Systems Llc | Fiber optic cable assembly |
| US9606320B2 (en) * | 2014-02-06 | 2017-03-28 | Commscope Technologies Llc | Device for distributing hybrid cable and transitioning from trunk cable to jumper cable |
-
2016
- 2016-08-30 CN CN201680046076.5A patent/CN107924740B/en not_active Expired - Fee Related
- 2016-08-30 AU AU2016317828A patent/AU2016317828B2/en not_active Ceased
- 2016-08-30 WO PCT/US2016/049406 patent/WO2017040476A1/en active Application Filing
- 2016-08-30 EP EP16842791.2A patent/EP3345196A4/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| AU2016317828B2 (en) | 2021-02-25 |
| CN107924740A (en) | 2018-04-17 |
| CN107924740B (en) | 2020-10-13 |
| EP3345196A1 (en) | 2018-07-11 |
| WO2017040476A1 (en) | 2017-03-09 |
| EP3345196A4 (en) | 2019-05-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGA | Letters patent sealed or granted (standard patent) | ||
| MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |