Troubleshooting
LED indicators on the front and rear panels of the FT82041/FR82041 module allow you to monitor operational status:
•LED indicators on the front panel allow you to monitor operating power,
•LED indicators on the rear panel allow you to monitor
Table B. Troubleshooting with
Indicator Color | Meaning | Possible Cause | Corrective Action |
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Power LED (Pelco badge)
Blue
Not lit
Power is being | – | No action required. |
applied to the |
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module. |
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|
Power is not being | Power connection is faulty. | Check power connection. |
applied to the |
| If module is rack mounted, |
module. |
| reseat module or power |
|
| supply as necessary. |
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| Power supply has failed. | Replace power supply. |
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| Loss of power occurs due to | Check circuit breakers, fuses, |
| tripped circuit breakers, | or electrical service as |
| blown fuses, or faulty elec- | necessary. |
| trical service. |
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| ) |
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Green | A fiber link is estab- | — |
| No action is required. |
| lished. |
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Flashing green | Data activity is | — |
| No action is required. |
| occurring on the fiber |
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| link. |
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Red | Far end fault indica- | Defective fiber transmit port | Replace local module. | |
| tion (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) |
C2623M (2/07) | 17 |