Power and optical fiber interface

• US 9,557,505 B2
• Filed: 07/15/2014
• Issued: 01/31/2017
• Est. Priority Date: 03/18/2013
• Status: Active Grant

• Current Assignee: Commscope Emea Limited (CommScope Holding Company, Inc.), 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
• Primary Examiner(s): Stahl, Mike
• Application Number:
  US14/331,873
• Publication Number:
  US 20150309271A1
• Time in Patent Office: 931 Days
• Field of Search: None
• US Class Current: 1/1
• 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 comprising:

a first location including a power source and fiber optic network access;

a plurality of active devices remotely positioned with respect to the first location;

a plurality of hybrid cables routed from the first location toward the active devices, the hybrid cables including optical fibers for transmitting optical signals and electrical conductors for carrying power; and

interface devices mounted adjacent to the active devices for providing interfaces between the hybrid cables and the active devices, the interface devices each including electrical power management circuitry positioned within a respective closure for providing DC-to-DC voltage conversion within the respective closure, the interface devices also including circuit protection circuitry for providing current surge protection.

2. The powered fiber optic system of claim 1, wherein the active devices include small cell generating devices.

3. The powered fiber optic system of claim 1, wherein the active devices include Wifi access devices.

4. The powered fiber optic system of claim 1, wherein the active devices include cameras.

5. The powered fiber optic system of claim 1, wherein the active devices include ONT'"'"'s of a FTTX network, wherein the ONT'"'"'s provide optical-to-electrical conversion of the optical signals at or near a subscriber location.

6. The powered fiber optic system of claim 1, wherein the interface devices include optical-to-electrical conversion circuitry for converting the optical signals from the hybrid cable into electrical signals that are transmitted from the interface devices to the active devices.

7. The powered fiber optic system of claim 6, wherein the electrical signals and power are transmitted from the interface devices to the active devices over Ethernet cables in a power-over-Ethernet or Power-over-Ethernet plus format.

8. The powered fiber optic system of claim 6, wherein the electrical signals are transmitted from the interface devices to the active devices over Ethernet cables and converted power is transmitted from the interface devices to the active devices over separate power cables.

9. The powered fiber optic system of claim 1, wherein the optical signals are transmitted from the interface devices to the active devices over fiber optic cables and converted power is transmitted from the interface devices to the active devices over separate power cables, or the power and optical signals are output via a hybrid cable.

10. The powered fiber optic system of claim 1, wherein circuitry protection electronics are also provided adjacent the power source at the first location.

11. The powered fiber optic system of claim 1, wherein the interface devices include insulation displacement connectors for connecting with the electrical conductors of the hybrid cables.

12. The powered fiber optic system of claim 1, wherein the hybrid cables have a flat construction including insulated central regions in which the optical fibers are positioned, the insulated central regions being positioned between insulated outer regions in which the electrical conductors are positioned, the insulated outer regions being peelable from the central regions and being insertable in insulation displacement connectors positioned at the interface devices for coupling the electrical conductors to the electrical power management circuitry.

13. The powered fiber optic system of claim 1, wherein the circuit protection circuitry provides primary, secondary and tertiary protection.

14. The powered fiber optic system of claim 1, wherein the circuit protection circuitry includes gas discharge tubes and metal oxide varistor components.

15. The powered fiber optic system of claim 1, wherein the electrical power management circuitry is customizable to output different DC voltage levels such that the DC output levels can be matched with power requirements of the active devices, and wherein power and communications signals can be output from the interface devices to the active devices in a format that is customizable and selectable from a plurality of formats that include all of the following formats:

a) a power over Ethernet format or a power over Ethernet plus format; and

b) a format including one or more optical fibers for the optical signals and separate electrical conductors for power.

16. An interface device for providing an interface between a hybrid cable and an active device, the interface device comprising:

a closure adapted for outside environmental use;

a cable anchoring structure for securing a hybrid cable to the closure, the hybrid cable having an electrical conductor and an optical fiber, the hybrid cable being configured to carry both electrical power and optical signals;

an insulation displacement connector (IDC) situated in the interior of the interface device configured to electrically terminate the electrical conductor, the IDC including a housing with a fiber pass-through groove configured to route the optical fiber of the hybrid cable through the housing of the IDC;

electrical power management circuitry positioned within the closure for providing DC-to-DC voltage conversion within the closure, the electrical power management circuitry being customizable to output one of a plurality of different DC voltage levels such that the DC output level can be matched with a power requirement of the active device;

electrical protection circuitry positioned within the closure; and

an output configuration for outputting power and communications signals from the interface device to the active device, the output configuration having a format that is customizable and selectable from a plurality of formats that include all of the following formats;

a) a power over Ethernet format or a power over Ethernet plus format; and

b) a format including one or more optical fibers for the optical signals and separate electrical conductors for power.

17. A power and optical fiber interface system, comprising:

a housing having an interior;

a cable inlet configured to receive a hybrid cable having an electrical conductor and an optical fiber;

an insulation displacement connector (IDC) situated in the interior of the housing configured to electrically terminate the conductor;

a cable outlet configured to receive an output cable that is connectable to the IDC and configured to output signals received via the optical fiber; and

a power converter electrically connected to the IDC.

18. The system of claim 17, wherein the power converter is a DC-DC converter.

19. The system of claim 17, further comprising an optical fiber management device situated in the interior of the housing configured to receive the optical fiber.

20. The system of claim 19, wherein the fiber management device includes an optical splice device.

21. The system of claim 19, wherein the fiber management device includes a media board configured to convert optical signals to electrical signals.

22. The system of claim 21, wherein the media board is electrically connected to the IDC.

23. The system of claim 22, wherein the media board is electrically connected to the IDC via a power management device.

24. The system of claim 17, wherein the IDC includes a housing with first and second conductor grooves configured to receive first and second conductors.

25. The system of claim 17, wherein the IDC includes a housing with a fiber pass-through groove configured to route optical fibers through the housing of the IDC.

26. The system of claim 17, wherein the IDC includes:

a housing;

a fiber pass-through groove configured to route optical fibers through the housing of the IDC; and

first and second conductor grooves situated on either side of the fiber pass-through groove configured to receive first and second conductors.

27. The system of claim 26, further comprising a hybrid cable received by the cable inlet, the hybrid cable including:

first and second electrical conductors received by the first and second conductor groove, respectively; and

an optical fiber received in the fiber pass-through groove.

28. A power and optical fiber interface system, comprising:

a housing having an interior;

a cable inlet configured to receive a hybrid cable having an electrical conductor and an optical fiber;

an insulation displacement connector (IDC) situated in the interior of the housing configured to electrically terminate the conductor; and

a cable outlet configured to receive an output cable that is connectable to the IDC and configured to output signals received via the optical fiber;

wherein the IDC includes a housing with a fiber pass-through groove configured to route optical fibers through the housing of the IDC.

29. A power and optical fiber interface system, comprising:

a housing having an interior;

a cable inlet configured to receive a hybrid cable having an electrical conductor and an optical fiber;

an insulation displacement connector (IDC) situated in the interior of the housing configured to electrically terminate the conductor; and

a cable outlet configured to receive an output cable that is connectable to the IDC and configured to output signals received via the optical fiber;

wherein the IDC includes;

a housing;

a fiber pass-through groove configured to route optical fibers through the housing of the IDC; and

first and second conductor grooves situated on either side of the fiber pass-through groove configured to receive first and second conductors.