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.
Note: The DS and US indicators flash yellow during startup, and turn green if
the Telephony Modem establishes an ultra-high speed connection. The
Link indicator may be yellow or green, as determined by the table on the
previous page.
Power, DS,
US, Online
Link
Telephone
Description
1 2
Off Off Off Off No power to Cable Modem
Flash Flash Flash Flash Power-on Self Test
See “Cable Modem Start Up Sequence” Below
On On Flash Off
Retrieving telephone network in-
formation
On On Off Flash
Retrieving telephone line informa-
tion
On On Flash Flash Activating telephone service
Normal Operation
Touchstone TM722 Telephony Modem User’s Guide
Safety
Getting
Started
Battery
Installation Installation
USB
Drivers
Ethernet
Configuration Usage Troubleshooting Glossary
58
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