Top And Front Panel - Motorola SURFboard SB4220 Series User Manual

Introduction Before You Begin
The model number and Standby button position
on your cable modem may be different than in
the illustrations and screen images in this guide.
1
2
3
4
5
6
7
Home Print
Installation & Configuration

Top and Front Panel

For added security, you can press the Standby button (1) to suspend your Internet
connection. No data is transmitted or received and the Standby button lights. All other
lights turn off until you press the Standby button again.
The lights provide information about power, communications, and errors:
Key Light
2 Power
3 Receive
4 Send
5 Online
6 Activity
7 Standby
During normal operation, the Power, Receive, Send, and Online lights are on and the
Activity light flashes when the cable modem is transferring data.
X
Exit
Troubleshooting
Flashing
Startup diagnostics in progress
Scanning for a receive
(downstream) channel connection
Scanning for a send (upstream)
channel connection.
Scanning for a network
connection
Transmitting or receiving data
This light does not flash
2
SURFboard Cable Modem SB4220 Series User Guide
FAQ Glossary License
On
The cable modem is powered on
The downstream channel is
connected
The upstream channel is connected
The startup process is complete
Transferring a large amount of data
Internet service is blocked because
the Standby button was pressed. If
this light is on, all other lights are off.