Scientific Atlanta EPC2505TM User Manual

4015259 Rev B 

 

11 

 

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.