Power and optical fiber interface

• US 9,977,208 B2
• Filed: 12/09/2016
• Issued: 05/22/2018
• Est. Priority Date: 03/18/2013
• Status: Active Grant

• Current Assignee: CommScope Technologies, LLC (CommScope Holding Company, Inc.)
• Original Assignee: CommScope Technologies, LLC (CommScope Holding Company, Inc.)
• Inventors: Huegerich, Thomas P., Kachmar, Wayne M., Flaig, Robert Charles, Bretz, Dwight Andrew
• Primary Examiner(s): Stahl, Mike
• Application Number:
  US15/373,709
• Publication Number:
  US 20170184799A1
• Time in Patent Office: 529 Days
• Field of Search: None
• CPC Class Codes: G02B 6/3817 containing optical and electrical conductors cables including electrical and optical conductors H01B11/22; G02B6/3816 takes precedence
• CPC Class Codes: G02B 6/426 mounting, engaging or coupling of the package to a board, a frame or a panel
• CPC Class Codes: G02B 6/4278 related to pluggable or demountable opto-electronic or electronic elements
• CPC Class Codes: G02B 6/4284 of optical modules with disconnectable electrical connectors latching arms for electrical connectors H01R13/627
• CPC Class Codes: G02B 6/4416 Heterogeneous cables
• CPC Class Codes: G02B 6/4431 with provision in the protective covering, e.g. weak line, for gaining access to one or more fibres, e.g. for branching or tapping break-out terminations G02B6/4471
• CPC Class Codes: G02B 6/4448 Electro-optic
• CPC Class Codes: H01B 11/22 Cables including at least one electrical conductor together with optical fibres
• CPC Class Codes: H04L 12/10 Current supply arrangements
• CPC Class Codes: H05K 5/0204 Mounting supporting structures on the outside of casings

Abstract

A power and optical fiber interface system includes a housing having an interior. A cable inlet is configured to receive a hybrid cable having an electrical conductor and an optical fiber. An insulation displacement connector (IDC) is situated in the interior of the housing configured to electrically terminate the conductor, and a cable outlet is configured to receive an output cable that is connectable to the IDC and configured to output signals received via the optical fiber.

Claims

1. A powered fiber optic system for providing power and data to at least one active device comprising:

a hybrid cable including at least one optical fiber for transmitting an optical signal and electrical conductors for carrying power;

an Ethernet cable having twisted pair conductors; and

a housing including;

electrical power management circuitry adapted to be coupled between the electrical conductors of the hybrid cable and the twisted pair conductors of the Ethernet cable, the electrical power management circuitry having a DC-to-DC voltage converter for raising the voltage received from the hybrid cable to compensate for voltage loss over a length of the hybrid cable and to output a desired voltage level to the Ethernet cable; and

optical-to-electrical conversion circuitry adapted to be coupled between the at least one optical fiber of the hybrid cable and the twisted pair conductors of the Ethernet cable, the optical-to-electrical conversion circuitry being configured to convert the optical signal from the hybrid cable into an electrical signal that is transmitted to the twisted pair conductors of the Ethernet cable.

2. The powered fiber optic system of claim 1, wherein circuit protection circuitry is provided within the housing for providing current surge protection.

3. The powered fiber optic system of claim 2, wherein the circuit protection circuitry provides primary, secondary and tertiary protection.

4. The powered fiber optic system of claim 2, wherein the circuit protection circuitry includes a gas discharge tube.

5. The powered fiber optic system of claim 2, wherein the circuit protection circuitry includes metal oxide varistor components.

6. The powered fiber optic system of claim 2, wherein the circuit protection circuitry includes a transient voltage suppression diode.

7. The powered fiber optic system of claim 1, wherein the housing includes a conditioning circuit to minimize voltage ripple.

8. The powered fiber optic system of claim 1, wherein the housing includes a first port for receiving the hybrid cable and a second port for receiving the Ethernet cable.

9. The powered fiber optic system of claim 8, further comprising a clamp for clamping the hybrid cable and the Ethernet cable respectively at the first and second ports.

10. The powered fiber optic system of claim 1, wherein the Ethernet cable is coupled to at least one active device.

11. The powered fiber optic system of claim 1, wherein the Ethernet cable includes an eight pin, eight contact modular connector mounted thereon.

12. The powered fiber optic system of claim 11, wherein the eight pin, eight contact modular connector is of type RJ-45.

13. The powered fiber optic system of claim 10, wherein the at least one active device includes a small cell generating device.

14. The powered fiber optic system of claim 10, wherein the at least one active device includes a Wifi access device.

15. The powered fiber optic system of claim 10, wherein the at least one active device includes a camera.

16. The powered fiber optic system of claim 1, wherein the hybrid cable has a flat construction including an insulated central region in which the at least one optical fiber is positioned, the insulated central region being positioned between insulated outer regions in which the electrical conductors are positioned, the insulated outer regions being peelable from the central region.

17. The powered fiber optic system of claim 1, wherein the hybrid cable includes an outer jacket having a left portion that defines a left passage with a left electrical conductor positioned within the left passage, a right portion that defines a right passage with a right electrical conductor positioned within the right passage, and a central portion that defines a central passage with at least one optical fiber positioned within the central passage.

18. The powered fiber optic system of claim 17, wherein the hybrid cable includes a left pre-defined tear location positioned between the central portion and the left portion of the outer jacket and a right pre-defined tear location positioned between the central portion and the right portion of the outer jacket, and wherein the left pre-defined tear location is weakened such that the left portion of the outer jacket can be manually torn from the central portion of the outer jacket and the right pre-defined tear location is weakened such that the right portion of the outer jacket can be manually torn from the central portion of the outer jacket.

19. The powered fiber optic system of claim 18, wherein the left pre-defined tear location is configured such that the left portion of the outer jacket fully surrounds the left passage and the central portion of the outer jacket fully surrounds the central passage after the left portion of the outer jacket has been torn from the central portion of the outer jacket;

and the right pre-defined tear location is configured such that the right portion of the outer jacket fully surrounds the right passage and the central portion of the outer jacket fully surrounds the central passage after the right portion of the outer jacket has been torn from the central portion of the outer jacket.

20. The powered fiber optic system of claim 1, wherein the at least one optical fiber comprises a core region surrounded by a cladding region, a coating region, and an outer jacket.