DOCSIS 3.0 Cable Modem User Guide

4023034 Rev B 33
Front Panel LED Status Indicator Functions
Normal Operations
The following table illustrates the appearance of the cable modem front panel LED
status indicators during normal operations.
Front Panel LED Status Indicators During Normal Operations
Step 9
Front Panel
Indicator
Normal Operations
1 POWER
On
2 DS
On
3 US
On
4 ONLINE
On
5 LINK
ON - When a single device is connected to either the Ethernet or 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 USB ports
Notes:
 When both Ethernet and USB devices are connected to the modem at the same time,
and data is being transferred through only one of the devices (Ethernet or USB), the
LINK LED status indicator illuminates continuously.
 Whenever data is being sent through both data ports (Ethernet and USB)
simultaneously, the indicator blinks as described above.