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
Battery* Description
1 2
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 LEDs only apply to those models with battery backup
Touchstone TM722 Telephony Modem User’s Guide
Safety
Getting
Started
Battery
Installation Installation
USB
Drivers
Ethernet
Configuration Usage Troubleshooting Glossary
61
