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Touchstone™ TM501 Telephony Modem User’s Guide 32

Getting Ethernet

Safety Started Installation Configuration Usage Troubleshooting Glossary

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

Telephony Start-Up Sequence

DS US Online Link Description

Off Off Off Off No power to Cable Modem

Flash Flash Flash Flash Power-on Self Test

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

Telephony Start-Up

Power, DS,

US, Online

Link Telephone Description

On On Flash Retrieving telephone network information

On On Off Retrieving telephone line information

On On Flash Activating telephone service

Normal Operation

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Arris Touchstone TM501 Betriebsanweisung Seite 32