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Troubleshooting
LED Symptom | Action |
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All LEDs are on. | The RTU may be in download mode. Wait ten minutes. |
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| If LEDs remain on after ten minutes and the RTU is not in |
| download mode, the RTU is not functional. Contact the NSP. |
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ALM LED remains | The |
on. | reapply power. If the alarm LED is still on, contact the NSP. |
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ALM and TST | Firmware download may be in progress. If firmware download |
LEDs are on. | is not in progress or the LEDs remain on after ten minutes, |
| contact the NSP. |
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DSL LED is off. | Verify that the DSL cable is securely installed on both ends. If |
| the problem continues, contact the NSP. |
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DSL LED continues | The RTU is attempting to establish the DSL link or is adjusting |
to blink after the | the rate of the DSL line due to line conditions. If the DSL LED |
continues to blink for more than five minutes, contact the NSP. | |
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DSL LED is on and | The DSL link has been established but there is no data |
there is no data | transmission. Verify the Ethernet connection. If the problem |
transmission. | persists, contact the NSP. |
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DSL and Ethernet | The DSL and Ethernet links have been established but there is |
LEDs are on and | no data transmission. If the problem continues, contact the |
there is no data | NSP. |
transmission. |
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Ethernet LED is off. | Verify that the Ethernet 10BaseT cable is securely installed at |
| both ends, and at least one PC is connected and powered on. |
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| Verify that the correct |
| installed. Refer to Installing the Hotwire 5620 RTU, page 8. |
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PWR LED is off. | Check that the power cord is securely installed on both ends. |
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| If no LEDs are on, the power supply may be defective. Test the |
| outlet to verify power. If the problem persists, contact the NSP. |
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| If other LEDs are on, the PWR LED may be burned out. Unplug |
| the unit and reapply power; watch all LEDs during the |
| |
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TST LED is on. | A test initiated by the NSP may be active. Wait five minutes. |
| If the TST LED does not go off, contact the NSP. |
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Increasing the Number of End-User Systems
A single PC is attached to the Hotwire 5620 RTU using an Ethernet crossover cable. To increase the number of PCs, connect all PCs to an Ethernet hub using a
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