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Touchstone CM450 Cable Modem User’s Guide
28
Safety
Getting Started
Installation
USB Drivers
Usage
Troubleshooting
Glossary
Indicator Lights
The Touchstone
Cable Modem has five lights to assist in troubleshooting.
Patterns: Normal Operation
The following table shows light patterns during normal operation. An
x
indicates
that the particular light is not important for determining the state.
See
Using the Standby Button
for more information about the standby mode.
Name
Description
Power
Online
Cable
USB
Ethernet
Off
Off
Off
Off
Off
No power to Cable Modem
On
Blink
x
x
x
Standby
switch active (the computers
are disconnected from the Internet)
On
On
x
x
x
Standby
switch inactive
On
x
On
x
x
No data to/from the cable interface
On
x
Blink
x
x
Data activity on the cable interface
On
x
x
Off
x
USB link disconnected (i.e. PC is
disconnected or powered off)
On
x
x
On
x
USB link connected, no traffic
On
x
x
Blink
x
USB data activity with PC
On
x
x
x
Off
Ethernet link disconnected (i.e. equip-
ment is disconnected or powered off)
On
x
x
x
On
Ethernet link connected, no traffic
On
x
x
x
Blink
Ethernet data activity with connected
equipment
Power
Online
Cable
USB
Ethernet
