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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

Safety

Started

Installation

Installation

Configuration

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

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