Arris SURFboard T25 User manual

QUICK START GUIDE

Cable Modem with

Xfinity Voice

T25

2

What’s in the Box

12vDC 2.5A

Power Adapter

Ethernet Cable

Soware License

& Warranty Card

Support

Information

Card

Quick Start Guide

T25

T25 Cable Modem

with Xﬁnity Voice

3

Introduction

Status Indicators

Let’s Get Started

Cable Modem Web Manager

4

7

14

1

3

2

4

1

Status Indicators

5

Telephone service for lines 1

& 2 are connected.

Voice cable modem is

connected to the network

Upstream (Send data) and

Downstream (Receive data)

channels are connected

Power is properly connected

to the voice cable modem

On

On

On

Flash

Note: Detailed LED status information is available

online in the SURFboard T25 User Guide at the ARRIS

Support website, www.arris.com/selelp.

Front Panel LEDs

Power

US/DS

Online

Tel1 &

Tel2

6

The SURFboardT25 is a combination DOCSIS 3.0

telephony cable modem with twoVoice-over-IP (VoIP)

telephone lines. It uses DOCSIS 3.0 technology to

provide ultra high-speed Internet access on your home

or small business network.

For whole home connectivity, use theT25 Ethernet

port to add a Wi-Fi router (separate purchase).

Using the connection capabilities of theT25, you can

connect your computer and other network-enabled

devices via the two Ethernet ports.TheT25 connects

to the existing coaxial coaxial cable connection in your

home.

Note: For Internet connections, you need a cable

service connection with a cable Internet Service

Provider. TheT25 will not work with DSL or satellite

Internet service.

7

Let’s Get Started

2

8

Connect the coaxial cable (not included) from the

cable wall outlet or RF splier to the Cable connector

on the rear of your cable modem.

A

Tighten the cable

connector by hand.

9

Connect the Ethernet cable to Ethernet port 1 on the

rear of your cable modem and the Ethernet port on

your PC or laptop.

B

Ethernet port 2 is

bridged to Ethernet

port 1. Your Internet

service provider

may require a

subscription to a

second IP address

to support using

both Ethernet ports.

10

Connect the power adapter to the Power port on

the rear of your cable modem, then plug it into an

electrical wall outlet that is not controlled by a wall

switch.

C

Your cable modem will

automatically power

ON when the power

adapter is connected.

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