Fiber to the antenna

• US 10,292,206 B2
• Filed: 01/24/2018
• Issued: 05/14/2019
• Est. Priority Date: 04/14/2010
• Status: Active Grant

• Current Assignee: CommScope Technologies, LLC (CommScope Holding Company, Inc.)
• Original Assignee: CommScope Technologies, LLC (CommScope Holding Company, Inc.)
• Inventors: Khemakhem, M'hamed Anis, Kowalczyk, Scott C., Torman, Nicholas, Louwagie, Dominic J.
• Primary Examiner(s): Mooney, Michael P
• Application Number:
  US15/879,159
• Publication Number:
  US 20180249534A1
• Time in Patent Office: 475 Days
• Field of Search: 385 14, 385 76- 80, 385 88- 92, 385134-139, 398 42- 45, 398 67- 99, 398115-117, 398134-139, 455 7, 455446, 455551, 455 73, 455 14, 4554221, 455561, 455562, 4555621, 455523
• CPC Class Codes: G02B 6/3897 Connectors fixed to housings, casing, frames or circuit boards G02B6/44528 takes precedence
• CPC Class Codes: G02B 6/4207 with optical elements reducing the sensitivity to optical feedback anti-reflection devices specially adapted for lasers, see H01S3/0064
• CPC Class Codes: G02B 6/4246 Bidirectionally operating package structures
• CPC Class Codes: G02B 6/4249 comprising arrays of active devices and fibres
• CPC Class Codes: G02B 6/4441 Boxes
• CPC Class Codes: G02B 6/4446 Cable boxes, e.g. splicing boxes with two or more multi fibre cables
• CPC Class Codes: G02B 6/4454 with splices
• CPC Class Codes: G02B 6/4457 Bobbins; Reels
• CPC Class Codes: G02B 6/4471 Terminating devices demountable connectors G02B6/3807; Cable clamps
• CPC Class Codes: H04B 10/25753 Distribution optical network, e.g. between a base station and a plurality of remote units
• CPC Class Codes: H04B 10/25758 between a central unit and a single remote unit by means of an optical fibre
• CPC Class Codes: H04B 10/801 using optical interconnects, e.g. light coupled isolators, circuit board interconnections
• CPC Class Codes: H04W 88/085 Access point devices with remote components
• CPC Class Codes: H04W 88/10 adapted for operation in multiple networks, e.g. multi-mode access points

Abstract

A cell site includes a tower, a multi-service terminal mounted to the tower and a base transceiver station in communication with the multi-service terminal. The multi-service terminal includes a housing and a plurality of adapters mounted to the housing. Each of the adapters includes an outer port accessible from outside the housing and an inner port accessible from inside the housing.

Claims

1. A fiber optic cable assembly for connection to remote transceivers on a cell tower, the fiber optic cable assembly comprising:

a housing defining an access opening at one end, the access opening being environmentally sealed, the housing including first and second pieces that cooperatively define a closed interior of the housing, the interior of the housing being environmentally sealed;

a main cable including a plurality of optical fibers, the main cable having a length suitable for extending from the ground to an upper region of the cell tower, the main cable extending through the access opening of the housing, the optical fibers of the main cable being broken out within the housing;

a spool about which at least part of the main cable is coiled; and

a plurality of break-out cables coupled to the housing, the break out cables being optically coupled to the optical fibers of the main cable which are broken out within the housing, the break-out cables including multi-fiber connectors adapted for connection to the remote transceivers.

2. The fiber optic cable assembly of claim 1, wherein the spool is carried with the housing.

3. The fiber optic cable assembly of claim 1, further comprising an enclosure disposed at a base of the cell tower, the enclosure including a base and a removable cover.

4. The fiber optic cable assembly of claim 3, wherein the spool is mounted with the enclosure.

5. The fiber optic cable assembly of claim 3, wherein the enclosure includes a termination region at which optical adapters are disposed.

6. The fiber optic cable assembly of claim 5, wherein the enclosure includes a fanout region at which at least one fanout is disposed.

7. The fiber optic cable assembly of claim 5, wherein the enclosure includes a storage region at which bend radius protectors are disposed.

8. The fiber optic cable assembly of claim 3, wherein the main cable extends into the enclosure.

9. The fiber optic cable assembly of claim 3, wherein the enclosure is disposed at an external wall of a hut located adjacent the base of the cell tower.

10. The fiber optic cable assembly of claim 1, wherein the plurality of break-out cables include at least three break-out cables.

11. The fiber optic cable assembly of claim 1, wherein the plurality of break-out cables include at least four break-out cables.

12. The fiber optic cable assembly of claim 1, wherein the plurality of break-out cables include at least five break-out cables.

13. The fiber optic cable assembly of claim 1, wherein the plurality of break-out cables include at least six break-out cables.

14. The fiber optic cable assembly of claim 1, wherein the first and second pieces of the housing are joined by fasteners.

15. The fiber optic cable assembly of claim 1, wherein the first and second pieces of the housing are elongated along a central longitudinal axis.

16. The fiber optic cable assembly of claim 1, wherein the spool includes a primary storage area between first and second flanges and a secondary storage area between the second flange and a third flange.

17. The fiber optic cable assembly of claim 1, wherein at an end of the fiber optic cable assembly opposite from the housing the fiber optic cable assembly includes a fan-out from which a plurality of fiber optic pigtails extend.

18. The fiber optic cable assembly of claim 1, wherein the housing carries a plurality of optical adapters having inner ports accessible from within the housing and outer ports accessible from an exterior of the housing.

19. The fiber optic cable assembly of claim 18, wherein the optical adapters are ruggedized.

20. The fiber optic cable assembly of claim 1, wherein an end of the main cable opposite the housing is terminated by a multi-fiber connector.