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. For
some cable companies these colors may be reversed.
Power, DS,
US, Online
Telephone
Description
1
2
Off
Off
Off
No power to Cable Modem
Flash
Flash
Flash
Power-on Self Test
“Cable Modem Start Up Sequence” Begins
On
Flash
Off
Retrieving telephone network in-
formation
On
Off
Flash
Retrieving telephone line informa-
tion
On
Flash
Flash
Activating telephone service
Normal Operation Begins
Touchstone TM902 Telephony Modem User’s Guide
Safety
Getting
Started
Installation
Ethernet
Configuration
Usage
Troubleshooting
Glossary
39