WebSTAR DPC2223 and EPC2223 VoIP Cable Modem User’s Guide Preliminary Draft 02 – 1/26/06
46
Front Panel LED Status Indicator Functions
Initial Power Up, Calibration, and Registration
(AC Power applied)
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:
After the cable modem completes Step 7 (Registration Completed), the
modem proceeds immediately to Normal Operations. See
Normal Operations
,
next in this section.
Front Panel LED Status Indicators During Initial Power Up, Calibration, and Registration
Step
→
1
2
3
4
5
6
7
Front Panel
Indicator
Self
Test
Downstream
Scan
Downstream
Signal Lock
Ranging Requesting
IP Address
Registering Registration
Completed
1
POWER ON
ON
ON
ON
ON
ON
ON
2
DS ON
BLINKING ON
ON
ON
ON
ON
3
US ON
OFF OFF BLINKING ON
ON
ON
4
ONLINE ON OFF
OFF
OFF
OFF
BLINKING
ON
5
LINK ON ON
or
BLINKING
ON
or
BLINKING
ON
or
BLINKING
ON
or
BLINKING
ON
or
BLINKING
ON
or
BLINKING
6
TEL 1
ON
OFF
OFF
OFF
OFF
OFF
OFF
7
TEL 2
ON
OFF
OFF
OFF
OFF
OFF
OFF
8
BATTERY
(Optional
model
only)
OFF OFF
OFF
OFF
OFF
OFF
OFF
*
The ONLINE LED is on whenever a PC is connected to the modem, and it blinks to indicate that data is being transferred. If
the modem is used to provide telephone service only and is not connected to a PC, the ONLINE LED is off.
