Table C. Troubleshooting with
Indicator Color | Meaning | Possible Cause |
| Corrective Action |
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Green | A fiber link | — |
| No action required. |
| is established. |
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Flashing green | Data activity is | — |
| No action required. |
| occurring on the fiber |
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| transmitted or |
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| received. |
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Red | Far end fault | Defective fiber transmit port | Replace local module. | |
| indication (FEFI). | on local module |
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| The optical signal |
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| Laser fault on local module | Refer to the Optic Fault LED | ||
| transmitted from this | (Optic Fault LED on local | section in this table. | |
| port is not detected | module flashes red). |
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| by the remote link |
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| Defective fiber receive port | Replace remote module. | ||
| partner. | |||
| on remote module |
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| NOTE: The Optic Fault LED on the remote module is red. Refer to the Optic Fault | |||
| LED section in this table for additional information. |
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| (Continued on next page) |
24 | C2624M (6/07) |