User`s guide
Touchstone® WTM552 Telephony Modem User’s Guide 64
Getting Battery Wireless Ethernet
Safety Started Installation Installation Configuration Configuration Usage Troubleshooting Glossary
Indicator Lights: Startup Sequence
The following table shows the Telephony Modem light patterns during each phase
of the startup sequence. There are two phases of startup; the Telephony phase and
the cable modem phase. Both are outlined below.
Cable Modem Start Up Sequence
Power,
DS, US,
Online
Link
Telephone
Battery* Description
12
Off Off Off Off Off No power to Cable Modem
Flash Flash Flash Flash Flash Power-on Self Test
See “Cable Modem Start Up Sequence” Below
On On Flash Off Off
Retrieving telephone network
information
On On Off Flash Off
Retrieving telephone line
information
On On Flash Flash Off Activating telephone service
Normal Operation
* = Battery LED only applies to those models with battery backup
DS US Online Link Description
Flash Off Off Off Downstream search
On Flash Off Off Downstream found; upstream search
On On Flash Off
Downstream and Upstream found;
retrieving setup information from cable
operator