Hardened fiber optic connection system with multiple configurations

• US 7,744,286 B2
• Filed: 09/03/2008
• Issued: 06/29/2010
• Est. Priority Date: 12/11/2007
• Status: Expired due to Fees

• Current Assignee: CommScope Technologies, LLC (CommScope Holding Company, Inc.)
• Original Assignee: ADC Telecommunications Incorporated (TE Connectivity Limited)
• Inventors: Reagan, Randy, Lu, Yu, Standish, Craig M.
• Primary Examiner(s): Le; Uyen-Chau N
• Assistant Examiner(s): Prince; Kajli
• Application Number:
  US12/203,530
• Publication Number:
  US 20090148101A1
• Time in Patent Office: 664 Days
• Field of Search: 385/60, 385/53, 385/77, 385/73
• US Class Current: 385/53
• CPC Class Codes: G02B 6/3816 for use under water, high pressure connectors provisionally see G02B6/4428
• CPC Class Codes: G02B 6/3821 with axial spring biasing or loading means G02B6/3847 takes precedence
• CPC Class Codes: G02B 6/3825 with an intermediate part, e.g. adapter, receptacle, linking two plugs
• CPC Class Codes: G02B 6/3826 characterised by form or shape
• CPC Class Codes: G02B 6/3849 using mechanical protective elements, e.g. caps, hoods, sealing membranes G02B6/3816 takes precedence; provisionally see H01R13/44
• CPC Class Codes: G02B 6/3877 Split sleeves
• CPC Class Codes: G02B 6/3887 Anchoring optical cables to connector housings, e.g. strain relief features
• CPC Class Codes: G02B 6/3888 Protection from over-extension or over-compression
• CPC Class Codes: G02B 6/3889 using encapsulation for protection, e.g. adhesive, molding or casting resin
• CPC Class Codes: G02B 6/3893 Push-pull type, e.g. snap-in, push-on
• CPC Class Codes: G02B 6/3894 Screw-lock type
• CPC Class Codes: G02B 6/4433 Double reinforcement laying in straight line with optical transmission element

Abstract

A fiber optic connection system includes a ruggedized fiber optic adapter and a ruggedized fiber optic connector and can further include a standard fiber optic connector (e.g., an SC connector), a pre-existing ruggedized fiber optic adapter, a first converter for converting the standard fiber optic connector to be compatible with the ruggedized fiber optic adapter, a second converter for converting the ruggedized fiber optic connector to be compatible with the pre-existing ruggedized fiber optic adapter, and a standard fiber optic adapter (e.g., an SC adapter). The ruggedized fiber optic connector is compatible with the ruggedized fiber optic adapter and with the standard fiber optic adapter. To retain the various connectors within the various adapters, various retention members and features (e.g. threaded retention members and latches) can be included in the fiber optic connection system. The first converter includes a converter housing that is sized to fit over a connector body of the standard fiber optic connector and retention shoulders of the connector body engage the converter housing.

Claims

1. An optical fiber connection system comprising:

a first ruggedized fiber optic adapter including a first port with a first sealing surface within the first port;

a ruggedized fiber optic connector including a first plug portion that is compatible with the first port of the first ruggedized fiber optic adapter, the first plug portion including a second sealing surface that seals with the first sealing surface of the first port when the first plug portion of the ruggedized fiber optic connector is fully inserted into the first port of the first ruggedized fiber optic adapter;

a first converter for converting a second plug portion of a standard non-ruggedized fiber optic connector to be compatible with the first port of the first ruggedized fiber optic adapter; and

a second converter including a second port with a third sealing surface within the second port, the first plug portion of the ruggedized fiber optic connector being compatible with the second port of the second converter, the second sealing surface of the first plug portion sealing with the third sealing surface of the second port when the ruggedized fiber optic connector is fully inserted into the second converter, the second converter including a third plug portion compatible with a third port of a second ruggedized fiber optic adapter.

2. The optical fiber connection system of claim 1, wherein the first plug portion of the ruggedized fiber optic connector is also compatible with a fourth port of a non-ruggedized fiber optic adapter.

3. The optical fiber connection system of claim 2, wherein the non-ruggedized fiber optic adapter includes an SC adapter.

4. The optical fiber connection system of claim 2, wherein the ruggedized fiber optic connector includes a threaded member that engages threads of the first ruggedized fiber optic adapter to retain the first plug portion of the ruggedized fiber optic connector within the first port of the first ruggedized fiber optic adapter, wherein the non-ruggedized fiber optic adapter does not have threads for receiving the threaded member.

5. The optical fiber connection system of claim 4, further comprising a locking member for locking the first plug portion of the ruggedized fiber optic connector within the fourth port of the non-ruggedized fiber optic adapter, wherein the locking member threads onto the threaded member of the ruggedized fiber optic connector.

6. The optical fiber connection system of claim 5, wherein the fourth port of the non-ruggedized fiber optic adapter includes retaining latches that engage catches provided on the first plug portion of the ruggedized fiber optic connector, wherein the fourth port of the non-ruggedized fiber optic adapter includes open spaces positioned adjacent the retaining latches, and wherein the locking member includes paddles that slide into the open spaces to limit movement of the retaining latches.

7. The optical fiber connection system of claim 1, wherein the non-ruggedized fiber optic connector includes an SC connector body, wherein the first converter includes a generally rectangular converter housing sized to fit over the SC connector body, the converter housing including opposing first and second side walls interconnected by a third wall that extends between the first and second side walls, the first and second side walls being configured to receive retention shoulders of the SC connector body such that the converter housing is axially fixed relative to the SC connector body.

8. The optical fiber connection system of claim 7, wherein the converter housing includes an open side located between the first and second side walls at a position opposite the third wall, the open side being configured to allow the converter housing to be laterally inserted over the SC connector body.

9. The optical fiber connection system of claim 7, wherein the first converter also includes a threaded fastening member for securing the SC connector body to the first port of the first ruggedized fiber optic adapter.

10. The optical fiber connection system of claim 9, wherein the converter housing includes a stop for engaging the threaded fastening member.

11. The optical fiber connection system of claim 7, wherein the first and second side walls define slots that receive the retention shoulders of the SC connector body.

12. The optical fiber connection system of claim 7, wherein the third wall includes at least one projection that engages a latch of the first ruggedized fiber optic adapter when the SC connector body with the converter housing mounted thereon is inserted into the first port of the first ruggedized fiber optic adapter.

13. The optical fiber connection system of claim 12, wherein the converter housing defines an axis that extends from a first end to an opposite second end of the converter housing, wherein the converter housing receives the retention shoulders of the SC connector body at slots located generally adjacent the first end, wherein the first end of the converter housing is configured to flex radially outwardly to allow the retention shoulders to be snapped into the slots of the converter housing when the SC connector body is inserted axially into the converter housing.

14. An optical fiber connection system comprising:

a first ruggedized fiber optic adapter including a first port with a first sealing surface within the first port;

a ruggedized fiber optic connector including a first plug portion that is compatible with the first port of the first ruggedized fiber optic adapter, the first plug portion including a second sealing surface that seals with the first sealing surface of the first port when the first plug portion of the ruggedized fiber optic connector is fully inserted into the first port of the first ruggedized fiber optic adapter;

a converter including a second port with a third sealing surface within the second port, the first plug portion of the ruggedized fiber optic connector being compatible with the second port of the converter, the second sealing surface of the first plug portion sealing with the third sealing surface of the second port when the ruggedized fiber optic connector is fully inserted into the converter, the converter including a second plug portion with a fourth sealing surface; and

a second ruggedized fiber optic adapter including a third port with a fifth sealing surface, the second plug portion of the converter being compatible with the third port of the second ruggedized fiber optic adapter, the fourth sealing surface of the second plug portion sealing with the fifth sealing surface of the third port when the converter is fully inserted into the second ruggedized fiber optic adapter.

15. The optical fiber connection system of claim 14, wherein the ruggedized fiber optic connector includes a first threaded member that engages a first set of threads of the first ruggedized fiber optic adapter to retain the first plug portion of the ruggedized fiber optic connector within the first port of the first ruggedized fiber optic adapter when the ruggedized fiber optic connector is connected to the first ruggedized fiber optic adapter, wherein the first threaded member of the ruggedized fiber optic connector engages a second set of threads of the converter to retain the first plug portion of the ruggedized fiber optic connector within the second port of the converter when the ruggedized fiber optic connector is connected to the converter, and wherein the converter includes a second threaded member that engages a third set of threads of the second ruggedized fiber optic adapter to retain the second plug portion of the converter within the third port of the second ruggedized fiber optic adapter when the converter is connected to the second ruggedized fiber optic adapter.

16. The optical fiber connection system of claim 14, further comprising an SC fiber optic adapter including a fourth port that is compatible with the first plug portion of the ruggedized fiber optic connector and is also compatible with a third plug portion of an SC fiber optic connector.

17. The optical fiber connection system of claim 16, wherein the ruggedized fiber optic connector includes a threaded member that engages threads of the first port of the first ruggedized fiber optic adapter to retain the first plug portion of the ruggedized fiber optic connector within the first port of the first ruggedized fiber optic adapter and wherein the SC fiber optic adapter does not have threads for receiving the threaded member.

18. The optical fiber connection system of claim 17, further comprising a locking member for locking the first plug portion of the ruggedized fiber optic connector within the fourth port of the SC fiber optic adapter, wherein the locking member threads onto the threaded member of the ruggedized fiber optic connector.

19. The optical fiber connection system of claim 18, wherein the fourth port of the SC fiber optic adapter includes retaining latches that engage catches provided on the first plug portion of the ruggedized fiber optic connector, wherein the fourth port of the SC fiber optic adapter includes open spaces positioned adjacent the retaining latches, and wherein the locking member includes paddles that slide into the open spaces to limit movement of the retaining latches.

20. The optical fiber connection system of claim 19, wherein the locking member includes a retention tab, wherein the first plug portion of the ruggedized fiber optic connector includes a detent that retains the retention tab of the locking member when the paddles of the locking member are slid into the open spaces of the SC fiber optic adapter, and wherein the paddles of the locking member are retained within the open spaces when the retention tab is retained by the detent.

21. An optical fiber connection system comprising:

a first ruggedized fiber optic adapter including a first port with a first sealing surface within the first port;

a ruggedized fiber optic connector including a first plug portion that is compatible with the first port of the first ruggedized fiber optic adapter, the first plug portion including a second sealing surface that seals with the first sealing surface of the first port when the first plug portion of the ruggedized fiber optic connector is fully inserted into the first port of the first ruggedized fiber optic adapter;

a first converter for converting a second plug portion of a non-ruggedized fiber optic connector to be compatible with the first port of the first ruggedized fiber optic adapter; and

a second converter including a second port, the first plug portion of the ruggedized fiber optic connector being compatible with the second port of the second converter, the second converter including a third plug portion compatible with a third port of a second ruggedized fiber optic adapter.