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
58
