Motorola SURFboard SB6121 - Manual (Page 34)

3 TROUBLESHOOTING
27
Front-Panel Lights and Error Conditions
Light Turns Off During Startup If: Turns Off During Normal
Operation If:
DS The downstream receive channel
cannot be acquired The downstream channel is lost
US The upstream send channel cannot
be acquired The upstream channel is lost
ONLINE IP registration is unsuccessful The IP registration is lost
POWER The SB6120 is not properly plugged
into the power outlet The SB6120 is unplugged