Table C. Troubleshooting with
Indicator Color | Meaning | Possible Cause | Corrective Action |
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| Optic Fault LED |
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Green | The optical signal is | — | No action required. |
| being received and |
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| laser is operating |
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| properly. |
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Red | The optical signal is | Remote fiber module is not | Check power connections. |
| not being received. | powered on. | Replace power supply if |
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| necessary. |
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| Fiber optic cable is not | Check fiber optic |
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| connected. | connections. |
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| Fiber optic cable connectors | Clean, polish, or replace fiber |
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| are dirty or are damaged. | optic cable connectors as |
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| necessary. |
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| Fiber optic cable is | Replace cable. |
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| defective. |
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| Optical dB losses in the | Check for problems with the |
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| fiber optic installation | fiber optic installation, for |
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| exceed the optical power | example, excessive dB |
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| budget specification stated | losses in connectors, splices, |
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| in the Specifications | patch panels, cables, |
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| section. | and so on. |
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| Optical dB losses in the | Contact Product Support. |
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| fiber optic installation meet |
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| the optical power budget |
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| specification stated in the |
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| Specifications section; |
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| however, a fiber module is |
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| defective. |
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Flashing red | Laser has shut down. | Fiber module is operating in | Ensure that fiber module |
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| extreme environmental | operates according to |
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| conditions; for example, | operating conditions stated |
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| operating temperature is | in the Specifications section, |
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| below or above recom- | and then cycle the power. |
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| mended range as stated in | If problem persists, contact |
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| the Specifications section. | Product Support. |
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| Laser has reached end of | Cycle the power. If problem |
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| life. | persists, contact Product |
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| Support. |
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| (Continued on next page) |
C2604M (7/06) | 25 |
