Front Panel Led Status Indicator Functions - Cisco DPQ3213 User Manual

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 when AC power is applied to the cable
modem. 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 (AC Power
applied) (on page 36).
Front Panel LED Status Indicators During Initial Power Up, Calibration, and Registration
Step 1
Front Panel Power
Indicator Up
1 POWER On
2 DS Blinking
3 US Blinking
4 ONLINE* Blinking
5 LINK Off
6 TEL1 Off
TEL2 Off
7 Battery** Off
* The ONLINE LED illuminates continuously 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.
**Illuminates as described for units that include a battery.
OL-30 823-01
2 3 4
Self Downstream Downstream
Test Scan Signal Lock
On On On
On Blinking On
On Off Off
On Off Off
On On or On or
Blinking Blinking
On Off Off
On Off Off
On Off Off
Front Panel LED Status Indicator Functions
5 6
Ranging Requesting IP
Address
On On
On On
Blinking On
Off Off
On or On or
Blinking Blinking
Off Off
Off Off
Off Off
7 8
Registering Registration
Completed
On On
On On
On On
Blinking On
On or On or
Blinking Blinking
Off Off
Off Off
Off Off
35