Cisco Systems 4027673 Manual De Usuario

4030802 Rev A 

 

13 

 

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.  

 

1  POWER—Illuminates to indicate that power is being applied to 

the cable modem 

2  DS (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 

3  US (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. 

4  ONLINE—Illuminates when the cable modem is registered on 

the network and fully operational 

5  LINK—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.