Detailed Front Panel Indicator Functions
This chart illustrates the sequence of steps and the corresponding appearance of the cable modem front panel indicators during power up, calibration, and registration on the network. Use this chart to troubleshoot the power up, calibration, and registration process of your cable modem.
Frontt Panell IndicatorsI i t Duringi InitialI iti l Power Up,, Calibration,li ti , and Registrationi t ti
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| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | ||
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Front Panel | Power | Self | Downstream | Downstream | Ranging | Requesting | Registering | Registration | ||||
Indicator | Up | Test | Scan | Signal Lock | IP Address | Completed | ||||||
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1 | POWER | ON | ON | ON | ON | ON | ON | ON | ON | |||
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| ON | ON | ON | ON | ON | ON | |
2 | PC | OFF | ON | or | or | or | or | or | ||||
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| BLINKING | BLINKING | BLINKING | BLINKING | BLINKING |
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3 | DATA | OFF | ON | OFF | OFF | OCCASIONAL | OCCASIONAL | OCCASIONAL | ON | |||
BLINKING | BLINKING | BLINKING | ||||||||||
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| SLOW | MOMENTARY |
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4 | CABLE | OFF | ON | BLINKING | OFF | BLINKING | BLINKING | |||||
ON | ||||||||||||
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| 1 time per second |
| 1 time per second | 4 times per second |
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| T9919 | |
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