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Broadband Equipment

When you want to make your Comcast High-Speed Internet service even better, BuyComcast.com makes the latest hardware with the best technology available to you. Lease or purchase the Motorola SURFboard® SB5101 cable modem at the same time you order your Comcast internet service through BuyComcast.com.

Motorola is a leader in the world of cable modems and digital set-tops. Read on to get all of the information you need to buy your modem and access your Comcast internet service with ease.

Comcast Modem: Next-Generation Technology

The Motorola SURFboard SB5101 Cable Modem is next-generation modem technology that is built for both today and tomorrow. Equipped with a capacity for future Internet access provider system upgrades, it implements the most recent DOCSIS 2.0 technology, which is three times greater in upstream capacity than DOCSIS 1.0 or 1.1. That’s not to say it’s not compatible with DOCSIS 1.0 or 1.1. It can be utilized seamlessly with either.

Groundbreaking Performance

Break new ground with the SB5101. Broaden your horizons when you travel to more places on the Net – quicker than you could have ever imagined.

Operators using the Motorola SURFboard SB5101 can count on an Internet experience that is unparalleled and uninterrupted. This allows for rapid transition. Existing infrastructure investments will be maximized by implementation of the SB5101. End-user security is provided courtesy of a top-mounted stand-by switch which swiftly singles out the USB and Ethernet PC connection, with no possibility of disconnection of the modem from the RF network, ensuring the most secure channel of special service. This increases security and allows large files to download instantaneously. Furthermore, troubleshooting is made easy with the front panel status indicator LEDs and integrated HTML diagnostics page.

Features of the Comcast Cable Modem from Motorola

Perpetual connection - Always On
DOCSISV 1.1 and 2.0 certified
Windows®, UNIX & Macintosh® compatible
Front panel status LEDs and built-in HTML-based diagnostics for swift and simple troubleshooting
1//100Base-T Ethernet (RJ-45) and USB high-speed data ports
Sleek, cosmopolitan design allows for a clutter-free desktop
Up to 63 user-supported capacity on a single Internet connection
CD-ROM Manual comes in multiple languages; with easy self-install instructions
USB cables and Ethernet included
SNMP & TFTP support remote configuration from the headend

General Specifications

General
Cable Interface	F-Connector, female, 75 Ω
CPE Network Interface	USB, Ethernet 10/100Base-T
Data Protocol	TCP/IP
Dimensions	6.2” H x 2.3” W x 6.0” L
Power	9 Watts (nominal)
Input Power
North America	105-125 VAC, 60 Hz
International	100-240 VAC, 50-60 Hz

Environmental
Operating Temp	0° C – 40° C, 32° F to 104° F
Storage Temp	-30° C to 80° C, -22° F to 176° F
Operating Humidity	5 to 95% R.H. (non-condensing)

Downstream

Modulation

64 or 256 QAM

Maximum Data Rate*

38 Mbps (256 QAM at 5.361 Msym/s)

Bandwidth

6 MHzp

Symbol Rate

64 QAM 5.057 Msym/s

Symbol Rate

256 QAM 5.361 Msym/s

Operating Level Range

-15 to +15 dBmV

Input Impedance

75 Ω (nominal)

Frequency Range

88 to 860 MHz

Upstream

Modulation

8***, 16, 32***, 64***, 128*** QAM or QPSK

Maximum Channel Rate**

30 Mbps; 64 QAM at 5.120 Msym/s

Bandwidth

200 kHz, 400 kHz, 800 kHz, 1.6 MHz, 3.2 MHz,
6.4*** MHz

Symbol Rate

160, 320, 640, 1280 and 2560 and 5120*** ksym/s

Operating Level Range

A-TDMA:	+8 to +54 dBmV (32 QAM, 64 QAM) +8 to +55 dBmV (8 QAM, 16 QAM) +8 to +58 dBmV (QPSK)
S-CDMA:	+8 to +53 dBmV (all modulations)

Output Impedance

75 Ω (nominal)

Frequency Range

5 to 42 MHz

Additional Features

• SNMP allows for remote management
• Multi-language user guide
• 10/100 Base-T Ethernet, USB connectivity
• 32-user support (32 on Ethernet; 31 via Ethernet, 1 via USB)
• Bridged connections allow LAN traffic between USB and Ethernet LAN
• Stand-by switch improves network security to end user
• Upgradeable software over the network
• Integrated DOCSIS 2.0 A-TDMA and S-CDMA technology
• Front panel LEDs with inbuilt HTML-based diagnostic user interface simplifies troubleshooting
• Global safety approval and certificates:
-FCC Part 15
-UL 1950

Compatible With

80486, Pentium, or later running Windows 98, Windows ME, or Windows XP – having an Ethernet or USB connection required.

Macintosh

Linux with Ethernet connection

Power PC or later running OS 8 or higher and an Ethernet connection required.

UNIX

Ethernet connection required

Home Networking

Equipment such as Ethernet routers or wireless access points.

Self-Installation Kit

(click image for more info)

Self-Installation Kit for the Comcast Cable Modem

Important Note* Be sure to keep all of the contents of your Self-Intallation Kit in a safe place. You will need to rerun the Installation CD during any future system upgrades or changes in hardware.

You may install and connect your modem in a few quick and easy steps. The cable is run to your cable modem situated next to your computer. Next, the cable modem is connected to your computer via a Network Interface Card (NIC) or Universal Serial Bus (USB) in your computer. It's as simple as that. All computers come equipped with a network adaptor.

Either a:

Network Interface Card, or NIC (aka: Ethernet card)
Universal Serial Bus, or USB

The Motorola SURFboardSB5120 is compatible with Comcast, DSL service, dial-up internet access, other provider platforms. Items included in the Comprehensive Self-Installation Kit

Welcome Kit Envelope
Welcome Letter
Subscriber Agreement
Installation CD
Cable Wire Bundle
Splitter
Short (3’) coaxial cable
Long (25’) coaxial cable

You will need either an Ethernet Card or USB Port on your personal computer to hook up your system.

Ethernet Card
Also known as Network Interface Card (NIC). If you do not have one in your computer, it can be installed.