Functional module with card guide engagement feature

• US 7,349,226 B2
• Filed: 08/12/2003
• Issued: 03/25/2008
• Est. Priority Date: 08/13/2002
• Status: Expired due to Term

• Current Assignee: Viavi Solutions, Inc. (Lumentum Holdings Inc.)
• Original Assignee: Finisar Corporation (II-VI Incorporated)
• Inventors: Ice, Donald A.
• Primary Examiner(s): Dinh; Tuan T.
• Application Number:
  US10/638,982
• Publication Number:
  US 20040032714A1
• Time in Patent Office: 1,687 Days
• Field of Search: 361/752, 361/753, 361/756, 361/759, 361/761, 361/763, 361/686, 361796-802
• US Class Current: 361/796
• CPC Class Codes: H05K 7/1404 by edge clamping, e.g. wedges
• CPC Class Codes: H05K 7/1418 Card guides, e.g. grooves H05K7/1425 takes precedence
• CPC Class Codes: H05K 7/1425 of standardised dimensions, e.g. 19"-subrack

Abstract

A functional module is provided for use in conjunction with an electronic equipment enclosure that includes a card cage having two end card guides and one or more middle card guides interposed between the end card guides. The functional module includes a double-wide card that is configured to be removably received in the card cage. The double-wide card includes electronic circuitry and defines a cutout configured to engage a middle card guide. When the functional module is operably positioned in the electronic equipment enclosure, the edges of the double wide card are supported by the end card guide and the cutout engages the middle card guide so that the double-wide card straddles the middle card guide and is supported thereby.

Claims

1. A functional module configured to be received in an electronic equipment enclosure that includes a card cage, the functional module comprising:

a front panel;

a card that includes electronic circuitry, the card having first and second side edges and defining at least one cutout formed along at least half of the length of the card and having opposing edges and the at least one cutout being interposed between the first and second side edges so that when the functional module is received in the electronic equipment enclosure, the first and second side edges of the card are supported by first and second card guides, respectively, and the opposing edges of the at least one cutout defined by the card are supported by a third card guide when the functional module is received in the electronic equipment enclosure; and

at least one connector attached to the card and configured for electrical communication with the electronic circuitry.

2. The functional module as recited in claim 1, wherein the card is at least double-wide.

3. The functional module as recited in claim 1, wherein the card is supported by the card cage at a second location between the side edges.

4. The functional module as recited in claim 1, further comprising at least two fasteners that pass through the front panel and are configured to removably engage the card cage, each of the fasteners defining a circumferential slot and comprising:

an e-clip substantially disposed in the circumferential slot; and

a spring disposed about a portion of the fastener.

5. The functional module as recited in claim 1, wherein the at least one connector is located proximate the front panel.

6. The functional module as recited in claim 1, wherein the at least one connector is located proximate a rear edge of the card.

7. In a functional module configured to be received in an electronic equipment enclosure that includes a card cage having a plurality of card guides disposed in a spaced apart arrangement, and the functional module including a front panel, a card configured to be attached to the front panel and comprising:

a body having first and second side edges and defining at least one cutout formed along at least half of the length of the body and having opposing edges and the at least one cutout being interposed between the first and second side edges so that when the card is received in the electronic equipment enclosure, the first and second side edges of the card are supported by first and second card guides, respectively, and the opposing edges of the at least one cutout defined by the card are supported by a third card guide;

electronic circuitry disposed on the body; and

a plurality of conductive elements disposed about at least a portion of a perimeter of the front panel in a manner so as to reduce electromagnetic emissions from within the card cage.

8. The card as recited in claim 7, wherein the body is at least double-wide.

9. The card as recited in claim 7, wherein the card is supported by the card cage at a second location between the side edges.

10. The card as recited in claim 7, wherein the at least one cutout comprises a slot defined by the body, the slot extending a portion of the length of the body and being located substantially equidistant from each of the two side edges of the card.

11. In an electronic equipment enclosure having a card cage that includes, at least, first and second card guides, as well as a third card guide interposed between the first and second card guides in a spaced apart arrangement configured to receive two single-wide functional modules in an edge-to-edge position, a functional module configured to be removably received in the electronic equipment enclosure, the functional module comprising:

a front panel;

a card attached to the front panel and including electronic circuitry, the card having first and second side edges and defining at least one cutout formed along at least half of the length of the card and having opposing edges and the at least one cutout being interposed between the first and second side edges so that when the functional module is received in the card cage, the first and second side edges of the card are supported by the first and second card guides, respectively, and the opposing edges of the at least one cutout defined by the card are supported by the third card guide;

a plurality of conductive elements disposed about at least a portion of a perimeter of the front panel in a manner so as to reduce electromagnetic emissions from within the card cage; and

at least one connector attached to the card and configured for electrical communication with the electronic circuitry.

12. The functional module as recited in claim 11, wherein the at least one cutout comprises a slot defined by the card, the slot extending a portion of the length of the card.

13. The functional module as recited in claim 11, wherein the at least one cutout is located substantially equidistant from each of the two side edges of the card.

14. The functional module as recited in claim 11, wherein the card is at least double-wide.

15. The functional module as recited in claim 11, further comprising at least two fasteners that pass through the front panel and are configured to removably engage the card cage, each of the fasteners defining a circumferential slot and comprising:

an e-clip substantially disposed in the circumferential slot; and

a spring disposed about a portion of the fastener.

16. An electronics system, comprising:

an electronic equipment enclosure that includes a card cage having a plurality of card guides disposed in a spaced apart arrangement; and

at least one functional module configured to be removably received in the electronic equipment enclosure, the functional module comprising;

a front panel;

a card that includes electronic circuitry, the card having first and second side edges and defining at least one cutout formed along at least half of the length of the card and having opposing edges and the at least one cutout being interposed between the first and second side edges so that when the functional module is received in the electronic equipment enclosure, the first and second side edges of the card are supported by first and second card guides, respectively, and the opposing edges of the at least one cutout defined by the card are supported by a third card guide; and

at least one connector attached to the card and configured for electrical communication with the electronic circuitry.

17. The electronics system as recited in claim 16, wherein the card is at least double-wide.

18. The electronics system as recited in claim 16, wherein the card is supported by the card cage at a second location between the side edges.

19. The electronics system as recited in claim 16, wherein the functional module further comprises at least two fasteners that pass through the front panel and are configured to removably engage the card cage, each of the fasteners defining a circumferential slot and comprising:

an e-clip substantially disposed in the circumferential slot; and

a spring disposed about a portion of the fastener.