Cisco DPC2203C Installation And Operation Manual page 55

Normal Operations (AC Power applied)
The following chart illustrates the appearance of the cable modem front panel LED
status indicators during normal operations when AC power is applied to the cable
modem.
Front Panel LED
1 POWER
2 DS
3 US
4 ONLINE
5 Link
1
6 TEL 1
7 TEL 2
8 BATTERY
The LINK LED is on whenever a PC is connected to the modem, and it blinks to indicate that
1
data is being transferred. If the modem provides telephone service only and is not connected to a
PC, the LINK LED is OFF.
The BATTERY LED becomes active once the modem registers with the call agent. When the
2
modem registers with the call agent, the visual status described in the table applies.
72-4017315-01 Rev B
Normal Operations
On
On
On
On

On - When a single device is connected to either the Ethernet or the USB
port and no data is being sent to or from the modem.

Blinks - When only one Ethernet or USB device is connected and data is
being transferred between the consumer premise equipment (CPE) and
the cable modem.

Off - When no devices are connected to either the Ethernet or the USB
ports.
Note: With both Ethernet and USB devices connected to the modem at the
same time, when data is transferred through only one of the devices
(Ethernet or USB), the LED illuminates continuously. Whenever data is sent
through both data ports (Ethernet and USB), the LED blinks as described
above.

On - When telephony service is enabled

Blinks - When Line 1 is in use

On - When telephony service is enabled

Blinks - When Line 2 is in use
2 
On - When battery is charged

Blinks - When battery charge is low

Off - When battery needs to be replaced (if observed
Functions of Front Panel LED Status Indicators
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