Multi-port optical connection terminal

• US 7,333,708 B2
• Filed: 08/23/2006
• Issued: 02/19/2008
• Est. Priority Date: 01/27/2004
• Status: Active Grant

• Current Assignee: Corning Optical Communications LLC (Corning Incorporated)
• Original Assignee: Corning Cable Systems LLC (Corning Incorporated)
• Inventors: Reagan, Jason B., Menke, Brett A., Smith, Kelly J., Blackwell, Chois A. Jr., Strause, Kevin L.
• Primary Examiner(s): Font; Frank G.
• Assistant Examiner(s): LEPISTO, RYAN A
• Application Number:
  US11/508,761
• Publication Number:
  US 20060280420A1
• Time in Patent Office: 545 Days
• Field of Search: 385/135, 385/76
• US Class Current: 385/135
• CPC Class Codes: G02B 6/3897 Connectors fixed to housings, casing, frames or circuit boards G02B6/44528 takes precedence
• CPC Class Codes: G02B 6/4441 Boxes
• CPC Class Codes: G02B 6/475 Mechanical aspects of installing cables in ducts or the like for buildings
• CPC Class Codes: G02B 6/501 underground installation of connection boxes

Abstract

A multi-port optical connection terminal for use as a branch point in a fiber optic communications network at a distance from a mid-span access location provided on a distribution cable having a plurality of optical fibers. The multi-port terminal includes a base and a cover affixed to the base. A stub cable port formed through one of the base and the cover receives a stub cable having at least one optical fiber extending continuously from the multi-port terminal to the mid-span access location. A first end of the optical fiber is optically connected to a respective optical fiber of the distribution cable at the mid-span access location and a fiber optic connector is mounted upon the second end. At least one connector port is provided on the multi-port terminal for receiving the fiber optic connector and a connectorized end of a fiber optic drop cable extending from the multi-port terminal.

Claims

1. An outside plant optical connection terminal for housing an optical connection between at least one input cable and at least one drop cable, the terminal comprising:

at least one housing portion, wherein the at least one housing portion defines an exterior surface and an interior cavity;

at least one cable opening located in the exterior surface for receiving the at least one input cable within the interior cavity; and

a plurality of connector ports located in the exterior surface of the housing portion, wherein the connector ports are adapted to optically connect the at least one input cable to the at least one drop cable,

wherein the at least one input cable is received within the cable opening along a first direction, the first direction defined as extending out of the housing from the cable opening, and the connector ports are oriented outwardly along a second direction, the second direction defined as extending out of the housing from the connector ports, such that an angle defined between the first direction and the second direction is greater than zero degrees and less than ninety degrees.

2. The terminal according to claim 1, wherein the angle defined between the first direction and the second direction is approximately forty-five degrees.

3. The terminal according to claim 1, wherein the angle defined between the first direction and the second direction is less than forty-five degrees.

4. The terminal according to claim 1, wherein the at least one housing portion comprises a plurality of angled surfaces having the plurality of connector ports located therein.

5. The terminal according to claim 1, wherein the at least one cable opening comprises at least one input cable port, wherein the at least one input cable port is adapted to threadably receive the at least one input cable.

6. The terminal according to claim 1, further comprising a fiber routing and slack storage hub disposed within the interior cavity of the at least one housing portion of the terminal for routing and storing excess lengths of optical fibers of the at least one input cable.

7. The terminal according to claim 1, wherein the interior cavity of the terminal is substantially free of filler material such that movement of at least one optical fiber of the at least one input cable is generally uninhibited within the interior cavity.

8. The terminal according to claim 1, further comprising at least one pigtail to optically connect the at least one input cable to the plurality of connector ports.

9. The terminal according to claim 1, wherein the exterior surface of the at least one housing portion defines at least one generally cylindrical surface.

10. A fiber optic communications network for providing an optical signal from a mid-span access location on a distribution cable to a network interface device, the network comprising:

a first outside plant optical connection terminal comprising;

at least one housing portion, wherein the at least one housing portion defines an exterior surface and an interior cavity;

at least one stub cable extending from the exterior surface, wherein the at least one stub cable defines a plurality of connectorized optical fibers within the interior cavity of the at least one housing portion; and

a plurality of connector ports located in the exterior surface of the housing portion, wherein the connector ports are adapted to optically connect the connectorized optical fibers of the at least one housing portion to an external optical cable;

a second outside plant optical connection terminal comprising;

at least one housing portion, wherein the at least one housing portion defines an exterior surface and an interior cavity;

at least one stub cable extending from the exterior surface, wherein the at least one stub cable defines a plurality of connectorized optical fibers within the interior cavity of the at least one housing portion; and

a plurality of connector ports located in the exterior surface of the housing portion, wherein the connector ports are adapted to optically connect the connectorized optical fibers of the at least one housing portion to an external optical cable;

wherein the at least one stub cable of the first outside plant optical connection terminal is adapted to optically connect to the mid-span access location on the distribution cable, and the at least one stub cable of the second outside plant optical connection terminal is adapted to optically connect to the first outside plant optical connection terminal.

11. The fiber optic communications network according to claim 10, wherein at least one of the connector ports and the stub cable port of the first outside plant optical connection terminal defines a single fiber connector.

12. The fiber optic communications network according to claim 10, wherein at least one of the connector ports and the stub cable port of the first outside plant optical connection terminal defines a multi-fiber connector.

13. The fiber optic communications network according to claim 10, wherein the first outside plant optical connection terminal comprises a second stub cable port, and wherein the stub cable of the second outside plant optical connection terminal is adapted to optically connect to the second stub cable port of the first outside plant optical connection terminal.

14. The fiber optic communications network according to claim 10, wherein at least one the plurality of connector ports of the first outside plant optical connection terminal comprises a multi-fiber connector, and wherein the stub cable of the second outside plant optical connection terminal is adapted to optically connect to the multi-fiber connector of the first outside plant optical connection terminal.