Cisco Systems 4027673 important safety instructions Front Panel Description

Front Panel Description

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 32) for more information on front panel LED status indicator functions.

1POWER—Illuminates to indicate that power is being applied to the cable modem

2DS (Downstream)—Illuminates to indicate that the cable modem is locked onto the downstream signal(s). The DS LED blinks to indicate that the cable modem is scanning for the downstream signal

3US (Upstream)—Illuminates 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.

4ONLINE—Illuminates when the cable modem is registered on the network and fully operational

5LINK—Off when no Ethernet/USB device is present, illuminates to indicate that an Ethernet or USB device is connected, and blinks to indicate that 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), DS (LED 2), US (LED 3), and ONLINE (LED 4) indicators illuminate continuously to indicate that the cable modem is online and fully operational.

4030802 Rev A 13