Front Panel LED Status Indicator Functions
Initial Power Up, Calibration, and Registration
The following chart illustrates the sequence of steps and the corresponding appearance of the cable modem front panel LED status 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.
Note: Once the cable modem completes step 8 (Registration Completed), the modem proceeds immediately to step 9, Normal Operations.
Frontt Panell LED Statust t IndicatorsI i t Duringi InitialI iti l Power Up,, Calibration,li ti , and Registrationi t ti
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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 |
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2 | PC | OFF | ON | or | or | or | or | or | ON | |||
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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 |
| BLINKING | BLINKING |
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4 | CABLE | OFF | ON | BLINKING | OFF | ON | ||||||
ON | 2 blinks | 4 blinks | ||||||||||
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| 1 blink |
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5 | LINE 1 | OFF | ON | OFF | OFF | OFF | OFF | OFF | OFF | |||
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6 | LINE 2 | OFF | ON | OFF | OFF | OFF | OFF | OFF | OFF | |||
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| T10328 | |
Normal Operations
The following chart illustrates the appearance of the cable modem front panel LED status indicators during normal operations.
Frontt Panell LED Statust t IndicatorsI i t Duringi Normall Operationsti
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Front Panel | Normal Operations | |
Indicator | (Bold denotes normal) | |
1 | POWER | ON |
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2 | PC | ON - When a single device is connected to either the Ethernet or USB port and no data is being |
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| BLINKS - LED blinks when only one Ethernet or USB device is connected and |
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| data is being transferrd between the consumer premise equipment (CPE) and the cable modem. |
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| OFF - When no devices are connected to either the Ethernet or USB ports. |
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| Note: With both Ethernet and USB devices connected to the modem at the same time, when data is being |
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| transferred through only one of the devices (Ethernet or USB), the indicator will illuminate continuously. |
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| Whenever data is being sent through both data ports (Ethernet and USB) simultaneously, the indicator will |
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| blink as described above. |
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3 | DATA | BLINKS - To indicate data is being transferred between the modem and the network. |
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4 | CABLE | ON |
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5LINE 1 ON when line 1 is in use.
6LINE 2 ON when line 2 is in use.
T10329
Continued on next page
4001231 Rev A | WebSTAR Model DPX213 VoIP DOCSIS Cable Modem User's Guide | 11 |