TELECOMMUNICATIONS CONNECTION DEVICE
The present disclosure relates to a telecommunications connection device. The device including a housing, a plurality of single-fiber connectorized pigtails that extend outwardly from the housing and a multi-fiber connectorized pigtail that extends outwardly from the housing. The multi-fiber connectorized pigtail can be optically coupled with the single fiber connectorized pigtails. The device can include optical fibers routed from the multi-fiber connectorized pigtail through the housing to the single-fiber connectorized pigtails. The single-fiber connectorized pigtails can be more flexible than the multi-fiber connectorized pigtail.
This application is being filed on Jun. 9, 2014, as a PCT International Patent application and claims priority to U.S. Patent Application Ser. No. 61/832,621 filed on Jun. 7, 2013, the disclosure of which is incorporated herein by reference in its entirety.
TECHNICAL FIELDThe present invention generally relates to telecommunications connection devices and terminal assemblies for extending fiber optic service.
BACKGROUNDFiber optic telecommunications connectivity is being increased as part of Fiber-To-The-Household (FTTH) or Fiber-To-The-Premises (FTTP) efforts currently on-going. In these efforts to increase fiber connectivity, the household or small business customers may be less densely located than earlier fiber build-outs to larger businesses or industrial customers. These efforts have given rise to desires for different devices and approaches to extend fibers to these new customers.
Since the customers may be more widely spaced apart, it is desirable to have telecommunications connection devices that are configured to mount to a multi-strand fiber optic cable with from four to twelve fibers. These telecommunications connection devices aid in the break out of the individual fibers from the multi-strand cables and preparing them for connection to a customer service or drop cable. The nature and location of the connection with the customer drop cables can be below grade, at grade or aerial. It may be desirable that a telecommunications connection device be adapted for use in multiple locations so that the same terminal design may be used for multiple installations. For below grade and at grade installations, it may be desirable that a telecommunications connection device be adapted for pulling through an underground conduit. It may be desirable that the cable entry into and exit from the telecommunications connection device be sealed against environmental entry.
SUMMARYThe present disclosure relates to a telecommunications connection device including a housing, a plurality of single-fiber connectorized pigtails that extend outwardly from the housing and a multi-fiber connectorized pigtail that extends outwardly from the housing. The multi-fiber connectorized pigtail can be optically coupled with the single fiber connectorized pigtails. The housing can have a planform defining a planform area. The housing can define a through-hole that extends through the housing in a direction transverse to the planform area. The through-hole can define a through-hole area that is at least 5 percent as large as the planform area.
Another aspect of the disclosure includes a telecommunications connection device including a housing, a plurality of single-fiber connectorized pigtails that extend outwardly from the housing and a multi-fiber connectorized pigtail that extends outwardly from the housing. The multi-fiber connectorized pigtail can be optically coupled with the single fiber connectorized pigtails. The device can include optical fibers routed from the multi-fiber connectorized pigtail through the housing to the single-fiber connectorized pigtails. The single-fiber connectorized pigtails can be more flexible than the multi-fiber connectorized pigtail.
A further aspect of the disclosure includes a telecommunications connection device including a housing, a plurality of single-fiber connectorized pigtails that extend outwardly from the housing and a multi-fiber connectorized pigtail that extends outwardly from the housing. The multi-fiber connectorized pigtail can be optically coupled with the single fiber connectorized pigtails. The housing can define a through-hole that extends through the housing. The device further including optical fibers routed from the multi-fiber connectorized pigtail through the housing to the single-fiber connectorized pigtails. The optical fibers can be routed at least partially around the through-hole.
Another aspect of the disclosure can include a telecommunications connection device including a housing, a plurality of single-fiber connectorized pigtails that extend outwardly from the housing and a multi-fiber connectorized pigtail that extends outwardly from the housing. The multi-fiber connectorized pigtail can be optically coupled with the single fiber connectorized pigtails. The housing can define a through-hole that extends through the housing. The housing can have a major front side, a major back side, an exterior side wall that extends between the major front and rear sides and along an exterior boundary. The exterior boundary can define a planform of the housing and an interior wall that defines the through-hole and extends between the major front and back sides. Optical fibers can be routed from the multi-fiber connectorized pigtail through the housing to the single-fiber connectorized pigtails. The optical fibers can be routed between the exterior side wall and the interior side wall.
Still another aspect of the disclosure can include a telecommunications connection device including a housing and a plurality of multi-fiber connectorized output pigtails that extend outwardly from the housing. The multi-fiber connectorized output pigtails can include output cables and multi-fiber output connectors that can be secured to the free ends of the output cables. Multi-fiber input connectors can be optically coupled to the plurality of multi-fiber connectorized pigtails.
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate several aspects of the present disclosure and together with the description, serve to explain the principles of the disclosure. A brief description of the drawings is as follows:
Reference will now be made in detail to the exemplary aspects of the present disclosure that are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.
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In other examples, the multi-fiber connectorized pigtail 16 can be modified with a single-fiber connector. In this example, the single-fiber connector can include a single fiber that can be routed from the single-fiber connector through the housing 12, the single fiber can be optically connected within the housing 12 to a passive optical power splitter 13, and then the split fiber lines can be separated and routed individually as single-fiber connectorized pigtails.
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In some examples, the single-fiber optical connectors 70 can be female connectors adapted to couple to corresponding male connectors. In other examples, the single-fiber optical connectors 70 can be male connectors adapted to couple to corresponding female connectors.
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The telecommunications connection device 210 can further include a multi-fiber connectorized pigtail 216 (e.g., multi-fiber connectorized input pigtail) having optical fibers that are optically coupled to corresponding optical fibers within the multi-fiber connectorized pigtails 214. While the multi-fiber connectorized pigtails 214 and the multi-fiber connectorized pigtails 216 have been described as “input” and “output” pigtails, it will be appreciated that in use optical signals can be transmitted in both directions through the pigtails. In the depicted example, the multi-fiber connectorized pigtail 216 includes 12 optical fibers. In other examples, the multi-fiber connectorized pigtail 216 can include a greater or lesser number of optical fibers (e.g., two, eight, twelve, twenty-four, thirty-two, etc.).
In certain examples, the optical fibers of the multi-fiber connectorized pigtails 214 can be optically coupled to the optical fibers of the multi-fiber connectorized pigtail 216 at a mass-fusion splice 217 enclosed within the housing 212. The optical fibers of the multi-fiber connectorized pigtails 214 can be mass-fusion spliced one-to-one with the optical fibers of the multi-fiber connectorized pigtail 216. As shown in
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In other examples, the multi-fiber connectorized pigtail 216 further includes a multi-fiber connector 224 having a ferrule 226 supporting the ends of the optical fibers 222. In a preferred example, the multi-fiber connector 224 has a ruggedized construction adapted for outdoor use. In certain examples, the fiber optic connector 224 includes a robust fastener such as a threaded coupler or bayonet-style coupler that is used to fasten the fiber optic connector 224 within a corresponding ruggedized port or to a mating ruggedized connector. The strength members 219 of the multi-fiber connectorized pigtail 216 can be anchored (e.g., fastened, adhered or otherwise secured) to the housing 212.
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In certain examples, the multi-fiber connectorized pigtails 214 can further include multi-fiber connectors 234. In one example, the multi-fiber connectors 234 can include ODC connectors each having two ferrules 236. The ferrules 236 can each support one of the optical fibers 230.
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In certain applications, telecommunications device 210 can be incorporated into a fiber-to-the-antenna network. In such examples, the multi-fiber connectorized pigtails 214 can be optically coupled to tower-mounted remote radio heads or other components within the fiber-to-the-antenna network.
From the forgoing detailed description, it will be evident that modifications and variations can be made without departing from the spirit and scope of the disclosure.
Claims
1. A telecommunications connection device comprising:
- a housing;
- a plurality of single-fiber connectorized pigtails that extend outwardly from the housing;
- a multi-fiber connectorized pigtail that extends outwardly from the housing, the multi-fiber connectorized pigtail being optically coupled with the single fiber connectorized pigtails; and
- the housing having a planform defining a planform area, the housing defining a through-hole that extends through the housing in a direction transverse to the planform area, the through-hole defining a through-hole area that is at least 5 percent as large as the planform area.
2. The device of claim 1, wherein the single fiber connectorized pigtails project outwardly from the housing in a first direction, and wherein the multi-fiber connectorized pigtail projects outwardly from the housing in the first direction.
3. The device of claim 1, wherein the single fiber connectorized pigtails include ruggedized single fiber optical connectors and the multi-fiber connectorized pigtail includes a ruggedized multi-fiber optical connector.
4. The device of claim 3, wherein the ruggedized single fiber optical connectors include coupling nuts and dust caps that attach to the coupling nuts by threaded connections, the dust caps covering interface ends of the ruggedized single fiber optical connectors, the interface ends including ferrules supporting end portions of optical fibers.
5. The device of claim 4, wherein the coupling nuts are rotatably mounted on main bodies of the ruggedized single fiber optical connectors, and wherein seals are mounted around the main bodies that engage the dust caps when the dust caps are covering the interface ends of the ruggedized single fiber optical connectors.
6. The telecommunications connection device of claim 1, wherein the multi-fiber connectorized pigtail includes a first cable and a multi-fiber optical connector secured to a free end of the first cable, wherein the single-fiber connectorized pigtails include second cables and single-fiber optical connectors secured to free ends of the second cables, and wherein the second cables are each more flexible than the first cable.
7. The telecommunications connection device of claim 6, wherein the second cables have round transverse cross-sectional profiles and the first cable has an elongated transverse cross-sectional profile.
8. The telecommunications connection device of claim 7, wherein the second cable have strength members including aramid yarn, and wherein the first cable includes two strength members each including an epoxy rod reinforced by fiber rovings.
9. The telecommunications connection device of claim 8, wherein the strength members of the first cable and the strength members of the second cable are anchored to the housing.
10. The telecommunications connection device of claim 6, wherein the multi-fiber optical connector includes a threaded coupler adapted mechanically to couple the multi-fiber optical connector to a structure selected from the group consisting of: a mating connector; a fiber optic adapter; and a dust cap.
11. The telecommunications connection device of claim 6, wherein the single-fiber optical connectors include threaded coupler adapted mechanically to couple the single-fiber optical connectors to structures selected from the group consisting of: mating connectors; fiber optic adapters; and dust caps.
12. The telecommunications connection device of claim 6, wherein the multi-fiber optical connector and the single-fiber optical connectors include environmental seals.
13. The telecommunications device of claim 1, further comprising a boot attached to the housing that projects outwardly from the housing, the boot providing bend radius protection to the single-fiber connectorized pigtails, the boot being more flexible than the housing.
14. The telecommunications device of claim 13, wherein all of the single-fiber connectorized pigtails are routed through the boot.
15. The telecommunications device of claim 14, wherein the multi-fiber connectorized pigtail is not routed through the boot.
16. The telecommunications device of claim 1, wherein optical fibers are routed from the multi-fiber connectorized pigtail through the housing to the single-fiber connectorized pigtails.
17. The telecommunications device of claim 16, wherein the optical fibers include optical splices within the housing.
18. The telecommunications device of claim 16, wherein the optical fibers are routed at least partially around the through-hole.
19. The telecommunications device of claim 18, wherein the optical fibers are routed at least 90 degrees around the through-hole.
20. The telecommunications device of claim 18, wherein the optical fibers are routed at least 180 degrees about the through-hole.
21. The telecommunications device of claim 18, wherein the optical fibers are routed at least 270 degrees about the through-hole.
22. The telecommunications device of claim 18, wherein the optical fibers are routed at least 360 degrees about the through-hole.
23. The telecommunications device of claim 18, wherein the optical fibers are routed between an interior side wall defining the through-hole and an exterior side wall of the housing.
24. The telecommunications device of claim 1, wherein the housing has a major front side, a major back side, an exterior side wall that extends between the major front and back sides and along an exterior boundary defining the planform of the housing, and an interior side wall that defines the through-hole and extends between the major front and back sides.
25. The telecommunications device of claim 24, wherein the exterior side wall defines a pigtail opening through which the single-fiber connectorized pigtails are routed, and wherein a flexible boot provides fiber bend radius protection to the single-fiber connectorized pigtails adjacent the pigtail opening.
26. The telecommunications device of claim 25, further comprising a cable anchoring panel positioned adjacent to the pigtail opening for anchoring strength members of the single-fiber connectorized pigtails to the housing.
27. The telecommunications device of claim 1, wherein the through-hole area is at least 10 percent as large as the planform area.
28. The telecommunications device of claim 1, wherein the through-hole area is at least 20 percent as large as the planform area.
29. The telecommunications device of claim 1, wherein the single-fiber connectorized pigtails are longer than the multi-fiber connectorized pigtail.
30. The telecommunications device of claim 1, wherein the single-fiber connectorized pigtails have connectorized ends that are staggered relative to one another.
31. The telecommunications device of claim 30, wherein the connectorized ends of the single-fiber connectorized pigtails include single fiber connectors having connector lengths, and wherein a stagger length of the single-fiber connectorized pigtails is at least 50 percent of the connector length.
32. The telecommunications device of claim 30, wherein the connectorized ends of the single-fiber connectorized pigtails include single fiber connectors having connector lengths, and wherein a stagger length of the single-fiber connectorized pigtails is at least 75 percent of the connector length.
33. The telecommunications device of claim 30, wherein the connectorized ends of the single-fiber connectorized pigtails include single fiber connectors having connector lengths, and wherein a stagger length of the single-fiber connectorized pigtails is equal to at least the connector length.
34. A telecommunications connection device comprising:
- a housing;
- a plurality of single-fiber connectorized pigtails that extend outwardly from the housing;
- a multi-fiber connectorized pigtail that extends outwardly from the housing, the multi-fiber connectorized pigtail being optically coupled with the single fiber connectorized pigtails;
- optical fibers routed from the multi-fiber connectorized pigtail through the housing to the single-fiber connectorized pigtails; and
- the single-fiber connectorized pigtails being more flexible than the multi-fiber connectorized pigtail.
35. The telecommunications connection device of claim 34, wherein the single-fiber connectorized pigtails include strength members which provide tensile reinforcement without providing compressive reinforcement, and the multi-fiber connectorized pigtail includes a strength member that provides both tensile and compressive reinforcement.
36. The telecommunications connection device of claim 35, wherein the strength members of the single fiber connectorized pigtails include aramid yarn, and wherein the strength member of the multi-fiber connectorized pigtail includes a reinforcing rod.
37. A telecommunications connection device comprising:
- a housing;
- a plurality of single-fiber connectorized pigtails that extend outwardly from the housing;
- a multi-fiber connectorized pigtail that extends outwardly from the housing, the multi-fiber connectorized pigtail being optically coupled with the single fiber connectorized pigtails;
- the housing defining a through-hole that extends through the housing; and
- optical fibers routed from the multi-fiber connectorized pigtail through the housing to the single-fiber connectorized pigtails, the optical fibers being routed at least partially around the through-hole.
38. The telecommunications device of claim 37, wherein the optical fibers are routed at least 90 degrees around the through-hole.
39. The telecommunications device of claim 37, wherein the optical fibers are routed at least 180 degrees about the through-hole.
40. The telecommunications device of claim 37, wherein the optical fibers are routed at least 270 degrees around the through-hole.
41. The telecommunications device of claim 37, wherein the optical fibers are routed at least 360 degrees about the through-hole.
42. A telecommunications connection device comprising:
- a housing;
- a plurality of single-fiber connectorized pigtails that extend outwardly from the housing;
- a multi-fiber connectorized pigtail that extends outwardly from the housing, the multi-fiber connectorized pigtail being optically coupled with the single fiber connectorized pigtails;
- the housing defining a through-hole that extends through the housing;
- the housing having a major front side, a major back side, an exterior side wall that extends between the major front and back sides and along an exterior boundary defining a planform of the housing, and an interior side wall that defines the through-hole and extends between the major front and back sides; and
- optical fibers routed from the multi-fiber connectorized pigtail through the housing to the single-fiber connectorized pigtails, the optical fibers being routed between the exterior side wall and the interior side wall.
43. A telecommunications connection device comprising:
- a housing;
- a plurality of single-fiber connectorized pigtails that extend outwardly from the housing; wherein the single-fiber connectorized pigtails include cables and single-fiber optical connectors are secured to free ends of the cables;
- a multi-fiber connectorized pigtail that extends outwardly from the housing, the multi-fiber connectorized pigtail being optically coupled with the single fiber connectorized pigtails;
- the single-fiber connectorized pigtails have connectorized ends that are staggered adjacent to one another such that a stagger length is achieved relative to an adjacent connectorized end; the stagger length being defined as a distance measured from a boot tail of a single-fiber connectorized end having a first stagger length to a boot tail of an adjacent single-fiber connectorized end having a second stagger length;
- the connectorized ends of the single-fiber connectorized pigtails include single-fiber optical connectors, wherein the single-fiber optical connectors include threaded couplers adapted mechanically to couple the single-fiber optical connectors to another connector to form mating connectors; the mating connectors including a male connector and a female connector; and
- the mating connectors having a coupled length defined by a distance measured from a boot tail of the male mating connector to a boot tail of the female mating connector;
- wherein the stagger length of the single-fiber connectorized ends is greater than or equal to the coupled length of the mating connectors.
44. A telecommunications connection device comprising:
- a housing;
- a plurality of multi-fiber connectorized output pigtails that extend outwardly from the housing, the multi-fiber connectorized output pigtails including output cables and multi-fiber output connectors that are secured to the free ends of the output cables; and
- multi-fiber input connectors that are optically coupled to the plurality of multi-fiber connectorized pigtails.
45. The telecommunications connection device of claim 44, wherein the multi-fiber input connectors each terminate an end of a multi-fiber connectorized input pigtail that extends from the housing.
46. The telecommunications connection device of claim 45, wherein the multi-fiber output connectors and the multi-fiber input connectors have ruggedized, outdoor constructions with coupling elements including threaded couplers or bayonet-style couplers.
47. The telecommunications connection device of claim 46, wherein the multi-fiber input connectors and the multi-fiber output connectors are environmentally sealed when coupled to corresponding connectors and/or ports.
48. The telecommunications connection device of claim 46, wherein the telecommunications connection device is incorporated into a fiber-to-the-antenna network.
49. The telecommunications connection device of claim 44, wherein the multi-fiber output connectors include ODC connectors.
Type: Application
Filed: Jun 9, 2014
Publication Date: May 5, 2016
Inventors: Scott C. KOWALCZYK (Savage, MN), Steven C. ZIMMEL (Minneapolis, MN), James J. BRANDT (St. Louis Park, MN), Oscar Fernando BRAN DE LEON (Belle Plaine, MN), Erik J. GRONVALL (Bloomington, MN), Trevor D. SMITH (Eden Prairie, MN), Yu LU (Eden Prairie, MN), David J. ANDERSON (Bloomington, MN)
Application Number: 14/896,394