High density fiber optic module

• US 6,768,860 B2
• Filed: 12/05/2002
• Issued: 07/27/2004
• Est. Priority Date: 12/05/2002
• Status: Expired due to Fees

• Current Assignee: Lumentum Operations, LLC (Lumentum Holdings Inc.)
• Original Assignee: Viavi Solutions, Inc. (Lumentum Holdings Inc.)
• Inventors: Liberty, Jonathan
• Primary Examiner(s): Patel, Tulsidas C.
• Application Number:
  US10/310,071
• Publication Number:
  US 20040109660A1
• Time in Patent Office: 600 Days
• Field of Search: 385/135, 385/134, 385/136, 385/137, 439/562, 439/564, 439/565, 439/954, 439/536
• US Class Current: 385/135
• CPC Class Codes: G02B 6/4453 Cassettes

Abstract

The invention relates to replaceable modules for use in optical fiber distribution racks. The modules according to the present invention are mounted in the distribution rack at a slight angle, which enables a simple and effective latching mechanism to connect and disconnect the module therefrom using one hand. Moreover, a preferred embodiment of the present invention minimizes the required size of the module by positioning the input ports at an angle to the remainder of the module body, which has the added benefit of directing the attached cables away from the latching mechanism providing enfettered access thereto. The optical fiber distribution rack according to the present invention includes a sliding lower tray with a sliding upper frame member, whereby full access to both the tray and the frame member are provided.

Claims

1. A module for use with a optical fiber distribution rack, which includes first and second mounting flanges, each defining an edge and an outside surface on opposite sides of an open slot, comprising:

a body for enclosing optical components;

a faceplate comprising first and second connector tabs disposed on opposite sides of the body for engaging the first and second mounting flanges, respectively, the first connector tab abutting against the outside surface of the first mounting flange, the second connector tab including a notch for engaging the edge of the second mounting flange, whereby the body is suspended in the rack at an acute angle to a plane containing the first and second mounting flanges;

a fastener disposed on the first or the second connector tab manually engageable from outside of the rack for connecting the module to and disconnecting the module from the first or the second mounting flange, respectively, with one hand; and

an access port mounted on the body between the first and second connector tabs for receiving at least one optical cable.

2. The module according to claim 1, wherein the fastener is disposed on the first connector tab.

3. The module according to claim 2, wherein the second connector tab includes first and second planar sections defining an acute angle therebetween, whereby the notch is formed at a joint between the first and second planar sections.

5. The module according to claim 1, wherein the access port comprises an array of optical connector ports for connecting a plurality of optical cable connectors along coupling axes.

6. The module according to claim 5, wherein the coupling axes are at an acute angle to the plane containing the first and second mounting flanges, and disposed non-parallel to a longitudinal axis of the body.

7. The module according to claim 1, wherein the body includes a lip extending from one side thereof for engaging a groove provided in the second mounting flange.

8. The module according to claim 1, wherein the body comprises a main portion and a cover;

and wherein the first and second connector tabs are integrally formed with the main portion.

4. A module for use with a optical fiber distribution rack, which includes first and second mounting flanges on opposite sides of an open slot, comprising:

a body for enclosing optical components;

a faceplate comprising first and second connector tabs disposed on opposite sides of the body for engaging the first and second mounting flanges, respectively, the first connector tab abutting against the first mounting flange, the second connector tab including a notch for engaging the second mounting flange, whereby the body is suspended in the rack at an acute angle to a plane containing the first and second mounting flanges;

a fastener disposed on the first or the second connector tab for connecting the module to and disconnecting the module from the first or the second mounting flange, respectively with one hand; and

an access port mounted on the body between the first and second connector tabs for receiving at least one optical cable;

wherein the fastener is disposed on the second connector tab for facilitating manual disengagement of the notch from the edge of the second mounting flange; and

wherein the second connector tab comprises;

a resilient camming portion for engaging the second mounting flange to displace the second connector tab during insertion of the module prior to engagement of the notch with the second mounting flange;

a manually engaging portion for displacing the second connector tab to disengage the notch from the second mounting flange during extraction of the module; and

a stepped portion between the camming portion and the manually engaging portion, whereby the notch is formed between the stepped portion and the manually engaging portion.

9. An optical fiber distribution rack comprising:

a housing for supporting optical fiber management systems;

first and second mounting flanges, each defining an edge and an outside surface on opposite sides of an open slot disposed in the housing; and

a module comprising;

a body for enclosing optical components;

a faceplate comprising first and second connector tabs disposed on opposite sides of the body for engaging the first and second mounting flanges, respectively, the first connector tab abutting against the outside surface of the first mounting flange, the second connector tab including a notch for engaging the edge of the second mounting flange, whereby the body is suspended in the rack at an acute angle to a plane containing the first and second mounting flanges;

a fastener manually engageable from outside of the rack disposed on the first or the second connector tab for connecting the module to and disconnecting the module from the first or the second mounting flange, respectively, with one hand; and

an access port mounted on the body between the first and second connector tabs for receiving at least one optical cable.

10. The rack according to claim 9, wherein the first and second mounting flanges are mounted on a frame, which is slideable relative to the housing.

11. The rack according to claim 10, wherein the frame is slideable relative to a tray, which is slideable relative to the housing.

13. The module according to claim 9, wherein the fastener is disposed on the first connector tab.

14. The module according to claim 13, wherein the second connector tab includes first and second planar sections defining an acute angle therebetween, whereby the notch is formed at a joint between the first and second planar sections.

15. The module according to claim 9, wherein the fastener is disposed on the second connector tab for facilitating manual disengagement of the notch from the edge of the second mounting flange.

16. The module according to claim 15, wherein the second connector tab comprises:

a resilient camming portion for engaging the second mounting flange to displace the second connector tab during insertion of the module prior to engagement of the notch with the second mounting flange;

a manually engaging portion for displacing the second connector tab to disengage the notch from the second mounting flange during extraction of the module; and

a stepped portion between the camming portion and the manually engaging portion, whereby the notch is formed between the stepped portion and the manually engaging portion.

17. The module according to claim 9, wherein the access port comprises an array of optical connector ports for connecting a plurality of optical cable connectors along coupling axes.

18. The module according to claim 17, wherein the coupling axes are at an acute angle to the plane containing the first and second mounting flanges, and disposed non-parallel to a longitudinal axis of the body.

19. The module according to claim 9, wherein the body comprises a main portion and a cover;

and wherein the first and second connector tabs are integrally formed with the main portion.

12. An optical fiber distribution rack comprising:

a housing for supporting optical fiber management systems;

first and second mounting flanges on opposite sides of an open slot disposed in the housing; and

a module comprising;

a body for enclosing optical components;

a faceplate comprising first and second connector tabs disposed on opposite sides of the body for engaging the first and second mounting flanges, respectively, the first connector tab abutting against the first mounting flange, the second connector tab including a notch for engaging the second mounting flange, whereby the body is suspended in the rack at an acute angle to a plane containing the first and second mounting flanges;

a fastener disposed on the first or the second connector tab for connecting the module to and disconnecting the module from the first or the second mounting flange, respectively; and

an access port mounted on the body between the first and second connector tabs for receiving at least one optical cable;

wherein the body includes a lip extending from one side thereof for engaging a groove provided in the second mounting flange.