Chapter 7
:
Using the Telephony Modem
Release 8 STANDARD 1.3 August 2016
Touchstone TM822G Telephony Modem User Guide
© 2011-2016 ARRIS Enterprises LLC. All Rights Reserved.
35
Note 1:
Your service provider may configure the Telephony Modem to always display the
DS
,
US
, and
Link
indicators in green regardless of the connection speed or swap the meaning
(speed indication) of yellow and green.
Patterns: Startup Sequence
The following tables show 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.
Telephony Startup Sequence
Power, US/DS,
Online
Telephone 1
Telephone 2
Description
Off
Off
Off
No power to modem
Flash
Flash
Flash
Power-on Self Test
See
Cable Modem Startup Sequence
(page 35)
On
Flash
Off
Retrieving telephone network
information
On
Off
Flash
Retrieving telephone line
information
On
Flash
Flash
Activating telephone service
Normal Operation
Note:
The
US/DS
indicator flashes yellow during startup and turns green if the Telephony
Modem establishes an ultra-high speed connection. For some service providers, these colors
may be reversed.
Cable Modem Startup Sequence
DS
US
Online
Description
Flash
Off
Off
Downstream search
On
Flash
Off
Downstream found; upstream search
