Interconnect system and methods of installing the same

Patent metadata

Field	Value
Publication number	US-11774684-B2
Application number	US-202217898721-A
Country	US
Kind code	B2
Filing date	Aug 30, 2022
Priority date	Apr 15, 2020
Publication date	Oct 3, 2023
Grant date	Oct 3, 2023

Abstract

An interconnect system is provided that involves pre-installing a connector housing an optical connector in an adapter and a ferrule of the same optical connector on a cable. The ferrule terminates one or more groups of optical fibers, and a ferrule push component is also pre-installed on the same group(s) of optical fibers. The connector housing is configured to receive and retain the ferrule and ferrule push component without being removed from the adapter to simultaneously form the optical connector and install the optical connector in the adapter. Embodiments such an interconnect system involving high fiber-count cables and related installation methods involving many optical connections are disclosed.

First claim

What is claimed is:

1. A method of forming an interconnect system, comprising:
(a) installing a plurality of ferrules and a plurality of ferrule push components that correspond to the plurality of ferrules on a cable that includes different groups of optical fibers, wherein each ferrule of the plurality of ferrules terminates one or more respective groups of the different groups of optical fibers, and wherein each ferrule push component of the plurality of ferrule push components is installed on the one or more respective groups of the optical fibers that are terminated by the corresponding ferrule; and
(b) installing a plurality of connector housings in a plurality of adapters of at least one adapter panel, wherein the plurality of connector housings are configured to receive and retain the plurality of ferrules and the plurality of ferrule push components without being removed from the plurality of adapters.

2. The method of claim 1 , wherein step (a) results in a pre-terminated cable assembly, the method further comprising:
installing a pulling grip assembly on an end of the cable and over the plurality of ferrules and the plurality of ferrule push components, wherein the plurality of connector housings remain installed in the plurality of adapters so as to not be part of the pre-terminated cable assembly when installing the pulling grip assembly.

3. The method of claim 2 , wherein the at least one adapter panel is included in a cabinet, the method further comprising:
shipping the pre-terminated cable assembly and the cabinet as independent assemblies to a remote site.

4. The method of claim 3 , further comprising:
routing the pulling grip assembly toward the at least one adapter panel;
removing the pulling grip assembly after the routing to expose the plurality of ferrules; and
installing the plurality of ferrules in the plurality of adapters by inserting the plurality of ferrule push components into the plurality of connector housings.

5. The method of claim 4 , wherein the step of installing the plurality of ferrules in the plurality of adapters results in the plurality of ferrules and the plurality of connector housings being coupled together to define a corresponding plurality of optical connectors that are installed in the plurality of adapters.

6. The method of claim 5 , wherein:
the step of installing the plurality of ferrules in the plurality of adapters is performed without any tools; and
once the step of installing the plurality of ferrules in the plurality of adapters is complete, the plurality of optical connectors are removable from the plurality of adapters without any tools.

7. The method of claim 4 , wherein the routing step further comprises:
routing the pulling grip assembly through a duct and through an opening in the cabinet; and
thereafter removing the pulling grip assembly to expose the plurality of ferrules and the plurality of ferrule push components.

8. The method of claim 7 , wherein the pulling grip assembly is removed from the end of the pre-terminated cable assembly without a tool.

9. The method of claim 4 , further comprising:
moving the at least one adapter panel from an installed position in an interior volume of the cabinet to a position at least partially outside the interior volume;
wherein for each adapter panel of the at least one adapter panel, the step of installing the plurality of ferrules in the plurality of adapters is performed when the adapter panel is the position at least partially outside the interior volume.

10. The method of claim 1 , wherein step (a) results in a pre-terminated cable assembly, the method further comprising:
(c) routing an end of the pre-terminated cable assembly that includes the plurality of ferrules from a remote location toward the at least one adapter panel; and
(d) installing the plurality of ferrules in the plurality of adapters by inserting the plurality of ferrule push components into the plurality of connector housings, wherein the plurality of connector housings are coupled to the plurality of adapters before the installing step and remain coupled to the plurality of adapters during the installing step.

11. The method of claim 10 , wherein step (d) results in the plurality of ferrules and the plurality of connector housings being coupled together to define a corresponding plurality of optical connectors that are installed in the plurality of adapters.

12. The method of claim 11 , wherein step (d) is performed without any tools.

13. The method of claim 12 , wherein:
step (d) results in the plurality of ferrules and the plurality of connector housings being coupled together to define a corresponding plurality of optical connectors that are installed in the plurality of adapters; and
once step (d) is complete, the plurality of optical connectors are removable from the plurality of adapters without any tools.

14. The method of claim 1 , further comprising:
installing a plurality of dust covers in the plurality of connector housings, wherein each dust cover of the plurality of dust covers is received in an end of a corresponding connector housing of the plurality of connector housings, the end being outside the adapter in which the corresponding connector housing is installed.

15. The method of claim 1 , wherein step (a) results in a pre-terminated cable assembly, and wherein the at least one adapter panel is included in a cabinet, the method further comprising:
shipping the pre-terminated cable assembly and the cabinet as independent assemblies to a remote site.

16. The method of claim 15 , wherein an end of the pre-terminated cable assembly that includes the plurality ferrules does not include optical connectors during the shipping step.

17. The method of claim 1 , wherein the plurality of connector housings and the plurality of ferrule push components are shaped so that each connector housing is only configured to receive each ferrule push in a single orientation of the ferrule push relative to the connector housing.

18. The method of claim 1 , wherein each ferrule of the plurality of ferrules terminates a single group of the different groups of optical fibers.

19. The method of claim 1 , wherein each ferrule of the plurality of ferrules terminates multiple groups of the different groups of optical fibers.

20. The method of claim 1 , wherein:
each ferrule of the plurality of ferrules includes a front end that defines an end face where the respective one or more groups of the different groups of optical fibers terminate, a back end opposite the front end, and a shoulder between the front end and the back end that defines a maximum height and a maximum width of the ferrule in a cross-sectional plane perpendicular to a longitudinal axis of the ferrule; and
each ferrule push component of the plurality of ferrule push components has a maximum height and maximum width in a cross-sectional plane perpendicular to a longitudinal axis of the ferrule push that is substantially the same or less than the maximum height and maximum width of the corresponding ferrule.

Assignees

• Corning Res & Dev Corp
• Us Conec Ltd

Inventors

• Childers Darrell
• Cloud Mitchell
• Conrad Craig
• Cooke Terry Lee
• Higley Jason
• Reinhardt Sherrh Clint

Classifications

• G02B6/44526

  Panels or rackmounts covering a whole width of the frame or rack · CPC title

• G02B6/44528

  Patch-cords; Connector arrangements in the system or in the box (routing arrangements H04Q1/00) · CPC title

• G02B6/3885 Primary

  Multicore or multichannel optical connectors, i.e. one single ferrule containing more than one fibre, e.g. ribbon type (optical ribbon cable G02B6/4403, G02B6/448) · CPC title

• G02B6/4471 Primary

  Terminating devices (demountable connectors G02B6/3807); Cable clamps · CPC title

• G02B6/3825

  with an intermediate part, e.g. adapter, receptacle, linking two plugs · CPC title