35
SBV5120 Series VoIP Cable Modem User Guide
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Introduction
Installation
Troubleshooting
Glossary
License
Front-Panel Lights and Error Conditions
Note: For Tel 1 and 2, if the LED is not lit and the telephone line is properly connected, the line has not been setup
for service by the telephone service provider. Contact your provider.
For more information about the lights, see
“Top and Front Panel”
on page 2.
Light
Turns Off During Startup If
Turns Off During Normal Operation If
Power
The VoIP cable modem is not properly
plugged into the power outlet
The VoIP cable modem is unplugged or is in
standby mode. Press the Standby button
DS
(Receive)
The receive channel cannot be acquired
The receive channel is lost
US
(Send)
The send channel cannot be acquired
The send channel is lost
Online
IP registration is unsuccessful
The IP registration is lost
Tel 1 and 2
Tel 2 fails to flash during startup, startup
telephony configuration has failed.
Connected during a phone call and does not blink,
telephone connection is lost.