Network Device User's Guide DPC2505TM, EPC2505TM

4015259 Rev B 11

Front Panel Description

The front panel of your cable modem provides LED status indicators that indicate

how well and at what state your cable modem is operating. After the cable modem is

successfully registered on the network, the POWER and ONLINE LED status

indicators illuminate continuously to show that the cable modem is active and fully

operational. See Front Panel LED Status Indicator Functions (on page

29) for more

information on front panel LED status indicator functions.

1 POWER—Illuminates solid green to indicate that power is

being applied to the cable modem

2 DS 1 (Downstream LED 1)—Illuminates solid green to indicate

that the cable modem is locked onto the downstream signal or

blinks to indicate that the cable modem is scanning for the

downstream signal

DS 2-3 (Downstream LEDs 2-3)—Off while the cable modem is

connecting to the network, after connecting, illuminate solid

green to indicate wideband operation, and Off if no wideband

channels are found

3 US (Upstream)—Off when no upstream connectivity is present,

illuminates solid green to indicate the upstream connection is

operational, blinks to indicate that upstream calibration is in

progress and during registration with the system. Off when the

modem is off-line.

4 ONLINE—Illuminates solid green when the cable modem is

registered on the network and fully operational

5 LINK—Off when no Ethernet/USB device is present,

illuminates solid green to indicate that an Ethernet/USB device

is connected, and blinks to indicate that Ethernet/USB data is

being transferred between the PC and the cable modem

Note: After the cable modem is successfully registered on the

network, the POWER (LED 1) and ONLINE (LED 4) indicators

illuminate continuously to indicate that the cable modem is

online and fully operational.