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Table C. Troubleshooting with
Indicator Color | Meaning | Possible Cause |
| Corrective Action | |
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Green | A fiber link is | — |
| No action required. | |
| established. |
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Flashing green | Data activity is | — |
| No action required. | |
| occurring on the fiber |
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| link; data is being |
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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) |
28 | C2607M (2/07) |