System and method for detecting a failure in a field replaceable unit

• US 9,116,263 B2
• Filed: 03/11/2009
• Issued: 08/25/2015
• Est. Priority Date: 03/11/2009
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Hayden, Perry L. Sr.
• Primary Examiner(s): NWUGO, OJIAKO K
• Application Number:
  US12/402,142
• Publication Number:
  US 20100231406A1
• Time in Patent Office: 2,358 Days
• Field of Search: 340/691.1
• US Class Current: 1/1
• CPC Class Codes: G02B 6/0008 the light being emitted at the end of the fibre

Abstract

An apparatus is provided in one example embodiment and includes a light guide configured to couple to an electronic unit. The electronic unit is a replaceable unit of an electronic component, the light guide extending along a body structure of the electronic unit and signaling an operational state of the electronic unit. In more specific embodiments, the light guide communicates optical energy from a light source coupled to the electronic unit and configured to indicate the operational state of the electronic unit. In still other embodiments, the light source is a light emitting diode (LED) that indicates the operational state of the electronic unit. The light guide can include a light input that enhances an optical coupling between the light source the light guide. In still other embodiments, the light guide includes a curved portion that changes a direction of optical energy propagating within the light guide.

Claims

1. An apparatus, comprising:

an electronic field replaceable unit;

and

a light guide extending along a body structure of the electronic field replaceable unit, wherein the light guide can communicate optical energy from a status indicator light at an end that the light guide terminates, wherein the status indicator light is mounted on an edge portion of a circuit board of an electronic component and is separate from the electronic field replaceable unit, wherein the status indicator light provides a visual indication of a current operational state of the electronic field replaceable unit.

2. The apparatus of claim 1, wherein the status indicator light is a light emitting diode (LED) that indicates the operational state of the electronic field replaceable unit.

3. The apparatus of claim 1, wherein the light guide includes a light input that enhances an optical coupling between the status indicator light and the light guide.

4. The apparatus of claim 1, wherein the status indicator light is optically aligned with a light source in order to indicate the operational state of the electronic field replaceable unit.

5. The apparatus of claim 1, wherein the light guide passes through one or more apertures of the body structure.

6. The apparatus of claim 1, wherein the status indicator light emits flashes to signal the operational state of electronic field replaceable unit.

7. The apparatus of claim 1, wherein the electronic field replaceable unit is a hard drive associated with the electronic component.

8. The apparatus of claim 1, wherein the electronic field replaceable unit is coupled to the circuit board via a connector.

9. The apparatus of claim 1, wherein the electronic field replaceable unit is hosted by the electronic component.

10. The apparatus of claim 1, wherein the electronic component is a server.

11. The apparatus of claim 1, wherein the operational state is an internal error or a failure of the electronic field replaceable unit.

12. The apparatus of claim 1, wherein the light guide includes mechanical stops limiting insertion of the light guide through apertures coupled to the body structure.

13. The apparatus of claim 1, wherein the light guide is a pipe, which is constructed of molded plastic, or a cable that can carry optical energy.

14. The apparatus of claim 1, wherein the status indicator light is physically separate from the electronic field replaceable unit.

15. An apparatus, comprising:

an electronic field replaceable unit, which is a replaceable unit of an electronic component, wherein the electronic component is configured to accept more than one electronic field replaceable unit and each electronic field replaceable unit is removable from the electronic component;

and

a light guide extending along a body structure of the electronic field replaceable unit, wherein the light guide can communicate optical energy from a status indicator light at an end that the light guide terminates, wherein the status indicator light is mounted on an edge portion of a circuit board of the electronic component and is separate from the electronic field replaceable unit, wherein the status indicator provides a visual indication of a current operation state of the electronic field replaceable unit.

16. The apparatus of claim 15, wherein the light guide passes through one or more apertures of the body structure and the electronic field replaceable unit is a fan used for cooling the electronic component.