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SB6121 Cable Modem • Installation Guide
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Uncontrolled Document
FCC Radiation Exposure Statement
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. To comply with
the FCC RF exposure compliance requirements, the separation distance between the antenna and any person’s body
(including hands, wrists, feet, and ankles) must be at least 20 cm (8 inches).
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter except those
already approved in this filing.
The availability of some specific channels and/or operational frequency bands are country dependent and are firmware
programmed at the factory to match the intended destinations. The firmware setting is not accessible by the end user.
INDUSTRY CANADA (IC) STATEMENT
This device complies with RSS-210 of the Industry Canada Rules. Operation is subject to the following two conditions:
This device may not cause interference, and
This device must accept any interference, including interference that may cause undesired operation of the device.
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.
In Canada, RLAN devices are restricted from using the 5600-5650 MHz frequency band.
CAUTION
: To reduce the potential for harmful interference to co-channel mobile satellite systems, use of the
5150-5250 MHz frequency band is restricted to indoor use only.
High power radars are allocated as primary users (meaning they have priority) of 5250-5350 MHz and 5650-5850 MHz
frequency bands. These radars could cause interference and/or damage to LE-LAN devices.
IC Radiation Exposure Statement
IMPORTANT NOTE
: This equipment complies with IC radiation exposure limits set forth for an uncontrolled
environment. This equipment should be installed and operated with a minimum distance of 20 cm (8 inches) between
the radiator and your body.
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Introduction • In the Box
SB6121 DOCSIS 3.0® Cable Modem • Installation Guide
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1
Introduction
The Motorola
®
SURFboard
®
SB6121 DOCSIS
®
3.0 Cable Modem provides high-speed
Internet access to the Internet and other online services.
You can use your high-speed cable modem to directly connect one computer in your
home or business to the Internet.
This guide provides product overview and setup information for the SB6121. It also
provides instructions for installing the cable modem and configuring the Ethernet, router,
DHCP, and security settings.
In the Box
Before installing the SB6121 cable modem, make sure the following items are included
in the box with the modem. If you obtained the modem from your service provider,
some of the included items may be different.
ITEM
DESCRIPTION
Power Supply
Provides power via an AC 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 SB6121
SB6121 Install Sheet
Provides basic information for connecting the
SB6121
Contact Information
For more information on Motorola consumer cable products, education, and support:
Visit the Motorola support website:
3
System Requirements
The SB6121 is compatible with the following operating systems:
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Introduction • System Requirements
SB6121 DOCSIS 3.0® Cable Modem • Installation Guide
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Windows
®
7
Windows Vista™, Service Pack 1 or later
Windows XP, Service Pack 2 or later
Mac
®
10.4 or later (Ethernet connection only)
UNIX
®
(Ethernet connection only)
Linux
®
(Ethernet connection only)
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Product Overview • Front Panel
SB6121 DOCSIS 3.0® Cable Modem • Installation Guide
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Product Overview
Front Panel
The SB6121 front panel icons provide the following modem status information for
power, communications, and errors:
ICON
FLASHING
ON
1
Not applicable — icon does
not flash
Green
: Power is properly connected
2
Scanning for a downstream
(receive) channel connection
Green
: Non-bonded downstream
channel is connected
Blue*
: High-speed Internet
connection with bonded
downstream channels
3
Scanning for an upstream
(send) channel connection
Green
: Non-bonded upstream
channel is connected
Blue*
: High-speed Internet
connection with bonded upstream
channels
4
Scanning for an Internet
connection
Green
: Startup process completed
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Product Overview • Rear Panel
SB6121 DOCSIS 3.0® Cable Modem • Installation Guide
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ICON
FLASHING
ON
5
Transmitting or receiving data
on Ethernet port
Amber
: A device, computer, or hub
is connected to the Ethernet
(10Base-T) or Fast Ethernet
(100Base-T) port
Blue*
: High-speed Gigabit Ethernet
(1000Base-T) connection from the
SB6121 to your PC
6
Powers on and off the cable modem
Note
: The Energy Conservation switch may be an option that is not
provided by your service provider.
*Blue
icon operation is not available in all locations. Your service provider may
implement bonded channels for high-speed Internet and Ethernet connections.
Note
: To increase the bandwidth available for receiving and transmitting data, your
service provider may also implement bonded channels for RECEIVE and SEND channel
connections. The LINK icon turns blue when a high-speed Gigabit Ethernet (GigE)
connection is made.
Rear Panel
1
2
3

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