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 module is not | Check power connections. | |
| not being received. | powered on. |
| Replace power supply if |
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| necessary. |
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| |
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| Fiber optic cable is not | Check fiber optic | |
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| connected. |
| connections. |
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| |
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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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| |
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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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| |
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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 module is |
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| defective. |
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Flashing red | Laser has shut down. | Module is operating in | Ensure that module operates | |
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| extreme environmental | according to operating | |
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| conditions; for example, | conditions stated in the | |
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| operating temperature is | Specifications section, and | |
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| below or above recom- | 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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C2624M (6/07) | 25 |