Getting
Started
SURFboard® SB6121
•
DOCSIS® 3.0 Cable Modem
•
User Guide
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365-095-25896-x.1
Getting Started
The SURFboard® SB6121 DOCSIS® 3.0 Cable Modem provides high-speed access to the Internet and
other online services on your home network. You can use your SB6121 to directly connect a
computer to your home or small business LAN through an Ethernet connection.
This guide provides a product overview and instructions for installing and configuring your SB6121
Cable Modem to get it up and running on your home network.
Inside the Box
Before installing your new cable modem, check that the following items are included in the box. If
any items are missing, please call ARRIS Technical Support at
1-877-466-8646
for assistance.
Table 1 – SB6121 Package Contents
Item
Description
SB6121 Cable Modem
High-speed DOCSIS 3.0 cable modem
Power Supply
Provides power to the modem using an
electrical outlet
Ethernet Cable
Standard Category 5, or higher, cable for
connecting to the network
Software License &
Regulatory Card
Contains software license, warranty, and
safety information for the modem
SB6121 Quick Start
Guide
Provides basic instructions for installing the
cable modem and setting up your network
connections
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