High-density patch-panel assemblies for optical fiber telecommunications

• US 8,331,752 B2
• Filed: 11/19/2010
• Issued: 12/11/2012
• Est. Priority Date: 09/02/2008
• Status: Active Grant

• Current Assignee: Corning Optical Communications LLC (Corning Incorporated)
• Original Assignee: Corning Cable Systems LLC (Corning Incorporated)
• Inventors: Biribuze, Eric, Lewallen, Christopher P., Luther, James P., McGranahan, Daniel S., Isenhour, Micah C.
• Primary Examiner(s): LEPISTO, RYAN A
• Application Number:
  US12/950,234
• Publication Number:
  US 20110085776A1
• Time in Patent Office: 753 Days
• Field of Search: 385/135
• US Class Current: 385/135
• CPC Class Codes: G02B 6/02342 characterised by cladding features, i.e. light confining region
• CPC Class Codes: G02B 6/3897 Connectors fixed to housings, casing, frames or circuit boards G02B6/44528 takes precedence
• CPC Class Codes: G02B 6/4452 Distribution frames

Abstract

Patch panel assemblies (150) that contain patch panel modules (50) for use in optical fiber telecommunication systems are disclosed. One of the patch panel assemblies includes a front mounting frame (210F) and at least one internal mounting frame (210I) that support a plurality of patch panel modules. The patch panel assembly also includes a hinge assembly (224) configured allow bend-insensitive fiber cables (70) to be routed therethrough. One of the patch panel assemblies includes a housing (152) with a drawer (270) that supports a plurality of patch panel modules. The patch panel modules employ bend-insensitive optical fibers (12C) to connect front and rear ports (92, 98) so that the patch panels have a reduced size as compared to conventional patch panel modules. The patch panel assemblies include a cable distribution box (300) that can store excess cable and that assists in routing bend-insensitive fiber optic cables within the patch panel assembly interior (200) in order to connect to select patch panel module jacks (90).

Claims

1. A patch panel module, comprising:

a substantially rectangular module housing that includes a front side having at least one angled facet, an opposing back side, opposing ends, and opposing sidewalls defining an interior region including a pathway extending from the front side to the opposing back side, the opposing sidewalls configured to be disposed adjacent to another patch panel module;

at least one jack arranged in one of the at least one angled facet, with the at least one jack defining one or more front-side ports;

at least one backside port operably connected to the at least one jack via at least one bend-insensitive cable fiber contained within the interior region of the module housing; and

a lengthwise open channel formed in the back side of the module housing and sized to accommodate an external bend-insensitive optical cable outside the interior region.

2. The patch panel module of claim 1, wherein each of a plurality of the at least one angled facets support one of the at least one jack, each of the at least one jack includes one or two ports.

3. The patch panel module of claim 2, configured to receive a bend-insensitive optical fiber cable at one of the opposing ends of the module housing from which the at least one jack are angled away.

4. The patch panel module of claim 1 having a height dimension (H₄) as measured from the back side to the front side, wherein the height dimension is at least 0.75 inches and at most 1.25 inches.

5. The patch panel module of claim 1, wherein one of the at least one jack protrudes from one of the at least one angled facet and extends beyond one of the opposing ends of the module housing.

6. The patch panel module of claim 1, wherein the lengthwise open channel extends into the interior region.

7. The patch panel module of claim 1, wherein the at least one bend-insensitive cable fiber comprises a nanostructure region surrounding a core region.

8. The patch panel module of claim 7, wherein the nanostructure region is surrounded by cladding.

9. The patch panel module of claim 1, wherein the back side of the module housing is configured to be placed against a floor panel to dispose the external bend-insensitive optical cable between the floor panel and the back side of the module housing.

10. The patch panel module of claim 1, wherein the opposing sidewalls of the module housing are planar or substantially planar.

11. The patch panel module of claim 1, wherein at least a portion of the back side of the module housing is planar or substantially planar.

12. The patch panel module of claim 1, further comprising at least one tab attached to the back side of the module housing and configured to retain the external bend-insensitive optical cable within the lengthwise open channel.