ARRIS WBM750 User Guide - Manual (Page 45)

Indicator Lights for the WBM750A/B Models
The Wideband Cable Modem has five indicator lights to assist in troubleshooting.
Patterns: Normal Operation
The following table shows light patterns during normal operation.
Patterns: Startup Sequence
The following table shows the light patterns during each phase of the startup se-
quence.
Power DS US Online Link Description
Off Off Off Off Off No power to Wideband Cable Modem
Flash Flash Flash Flash Flash Power-on Self Test
On Flash Off Off Off Downstream search
On On Flash Off Off Downstream found; upstream search
On On On Flash Off
Downstream and Upstream found;
retrieving setup information from cable
operator
Mode Power DS US Online Link
AC Power On
On = Connected
to the Internet
Flash = Not
connected to the
Internet
On = Connected
to the Internet
Flash = Not
connected to the
Internet
On = Internet
Available
Off = Internet
not available
On = Computer
Connected
Off = Computer
not connected
Flash = Computer
Activity
No AC Power Off Off Off Off Off
Firmware
Upgrade
On Flash Flash On (normal operation)
Touchstone TM602 Telephony Modem User’s Guide
Safety
Getting
Started Installation
USB
Drivers
Ethernet
Configuration Usage Troubleshooting Glossary
45
A
B
C
D
E