Indicator lights: startup sequence – ARRIS WTM552 User Guide User Manual
Page 64
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Touchstone® WTM552 Telephony Modem User’s Guide
64
Getting
Battery
Wireless
Ethernet
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.
Cable Modem Start Up Sequence
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 LED only applies to those models with battery backup
DS
US
Online
Link
Description
Flash
Off
Off
Off
Downstream
search
On
Flash
Off
Off
Downstream found; upstream search
On
On
Flash
Off
Downstream and Upstream found;
retrieving setup information from cable
operator