Table C. Troubleshooting with Rear-Panel Indicators (Continued)
Indicator Color | Meaning | Possible Cause | Corrective Action |
|
|
|
|
|
|
|
|
Not lit | A | A problem may exist with | Do any of the following as |
| the cable: | applicable: | |
| cannot be | • Cable is not connected | • Connect the cable. |
| established. | ||
| to the module or to the | • Replace the cable. Use | |
|
| ||
|
| Cat5e or higher cable. | |
|
| compatible device. | • Ensure that cable is proper |
|
| • Cable is defective. | |
|
| length. Cable length must | |
|
| • Cable is not the proper | not exceed 128 feet |
|
| cable type. | (100 meters). |
|
| • Cable is not the proper |
|
|
| length. |
|
|
| Device connected to the | Power on the device connected |
|
| module is not powered on. | to the module. |
|
|
|
|
|
| Duplex mode setting (half- | Set the duplex mode setting on |
|
| duplex or | modules to match one another |
|
| not match the duplex mode | (autonegotiation or forced |
|
| setting of the remote | |
|
| module. | Refer to Setting |
|
|
| |
|
|
| Operation on page 10 for |
|
|
| information. |
|
|
|
|
|
| Port on module is defective. | Replace the module |
|
|
|
|
|
|
| (Continued on next page) |
20 | C2622M (2/07) |