Arris WBM750 Touchstone User Manual page 45

Getting
Safety Started
USB
Installation Drivers
Indicator Lights for the WBM750A/B Models
The Wideband Cable Modem has five indicator lights to assist in troubleshooting.
Patterns: Normal Operation
A
The following table shows light patterns during normal operation.
B
Mode
C
D
E
AC Power
No AC Power
Firmware
Upgrade
Patterns: Startup Sequence
The following table shows the light patterns during each phase of the startup se-
quence.
Power
Off
Flash
On
On
On
Touchstone TM602 Telephony Modem User's Guide
Ethernet
Configuration Usage
Power DS
On = Connected On = Connected
to the Internet
On
Flash = Not
connected to the connected to the
Internet
Off Off
On Flash
DS US Online Link
Off Off Off Off
Flash Flash Flash Flash
Flash
Off Off Off
On Flash
Off Off
On On Flash
Off
Troubleshooting
US Online
On = Computer
On = Internet
to the Internet
Available
Off = Computer
Flash = Not
Off = Internet
not available
Internet Flash
Off Off
Flash On (normal operation)
Description
No power to Wideband Cable Modem
Power-on Self Test
Downstream search
Downstream found; upstream search
Downstream and Upstream found;
retrieving setup information from cable
operator
Glossary
Link
Connected
not connected
= Computer
Activity
Off
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