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Motorola Surfboard SB4101 Manual

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Related manuals
Motorola Surfboard SB4101 Install Guide
Motorola Surfboard SB4101 Data Sheet
Motorola Surfboard SB4101 Reference Guide

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User reviews and opinions

Comments to date: 6. Page 1 of 1. Average Rating:
wilcoxcr 2:31pm on Thursday, November 4th, 2010 
Finally got around to installing and...the modem was inoperable. The Comcast install tech will have to register this, so it will not work until then, but the process takes only a few minutes Great deal. Works very well. Seems really reliable None
fatman 12:57pm on Tuesday, September 7th, 2010 
SB5101U with Comcast A Comcast Tech installed the modem when hooking up TV and internet service in the middle of September. Good Modem I have Comcast and this works great with it, and saves me the monthly $5 rent from comcast on the modem. Motorola Cable Modem I have one Motorola Cable modem, so I purchased another. They work quite well.
rikwrybac 8:00pm on Thursday, July 1st, 2010 
Only had to make a quick call to my cable company to update with a new MAC address and I was on my way. Easy to set up and fast None so far
ytjandra 7:19pm on Monday, June 14th, 2010 
"I owned this modem for a number of years and it never gave me any issues what so ever. Its very reliable, and very fast.
undisputed champ 7:43am on Saturday, June 12th, 2010 
"I have had this modem for 8 months now with no problems with it. It has been on every since I hooked it up. "nice connection issues...i actually think it connects faster than linksys used to... "Simply the best cable modem on the market. I have Time Warner cable RoadRunner Turbo and consistently see download speeds approaching 20mbits/sec.
cabiven 5:51am on Friday, May 28th, 2010 
Excellent product and fast delivery I bought this to provide my internet through the cable system. It works like a dream.

Comments posted on are solely the views and opinions of the people posting them and do not necessarily reflect the views or opinions of us.




SURFboard Cable Modem

With user-friendly enhancements, Motorolas SURFboard SB4101 Cable Modem is made for the marketplace.
The latest addition to Motorolas SURFboard Cable Modem family, the SURFboard SB4101, has been redesigned with the consumer in mind. The Motorola SURFboard SB4101 now features a user-friendly, convenient top-mounted stand-by switch. The stand-by switch disconnects the USB and Ethernet connection to the CPE without disconnecting the cable modem from the RF network, providing security, flexibility and performance. Competitively priced, the SB4101 includes all the features of previous SURFboard Cable Modems, including USB connectivity, software upgrades available over the network, advanced RF design, top-notch field reliability and highperformance processors. It offers both Ethernet and USB interface connectivity to help ensure compatibility with almost any PC or Macintosh network-ready computer system. And its 10/100BaseT auto sensing Ethernet lines allows for seamless communications. Plus, its hardware-ready to support DOCSIS 1.1 specifications, ensuring advanced Quality of Service (QoS).


DOCSIS 1.0 CableLabs certified User-friendly, top-mounted stand-by switch enhances security and convenience New LED added to front panel to indicate stand-by status USB network connectivity simplifies installation Capable of downloading at speeds up to 100 times faster than a 28.8k analog phone modem* No telephone lines needed always on, always connected Compatible with Windows 95/98/2000/Me/NT/Mac/UNIX Supports up to 32 usersideal for home and small businesses WHQL approved Attractive vertical design saves desk space


DOCSIS 1.1 hardware based USB for Windows 98/2000/Me Supports up to 32 users (1 via USB and up to 31 via Ethernet) Ethernet and USB connections are bridged allowing LAN traffic between USB device and Ethernet LAN 10/100BaseT Ethernet (auto sensing) Remote management via SNMP Software upgradeable over the network Internal power supply Top-mounted stand-by switch enhances network security to end-user Platform independent modem with HTML-based user interface for status troubleshooting Front panel LEDs for easy troubleshooting Multi-language user guide Global safety approval & certificates: CB scheme (EN60950/IEC950) CE-Evaluation test report (EN55022/EN55024) UL approved Microsoft WHQL approved FCC Part 15


Demodulation. 64 or 256 QAM Maximum Data Rate*. 38 Mbps Bandwidth. 6 MHz Symbol Rate. 64 QAM 5.069 Msym/s Symbol Rate. 256 QAM 5.361 Msym/s Operating Level Range. -15 to +15 dBmV Input Impedance. 75 (nominal) Frequency Range. 88 to 860 MHz


Modulation. 16 QAM or QPSK Maximum Data Rate. 10 Mbps Bandwidth. 200 kHz, 400 kHz, 800 kHz,. 1.6 MHz, 3.2 MHz Symbol Rates. 160, 320, 640, 1280 and. 2560 ksym/s Operating Level Range. +8 to +55 dBmV (16QAM). +8 to +58 dBmV (QPSK) Output Impedance. 75 (nominal) Frequency Range. 5 to 42 MHz (edge to edge)
Cable Interface. F-Connector, Female, 75 CPE Network Interface. USB, Ethernet 10/100BaseT. (auto sensing) Data Protocol. TCP/IP Dimensions. 7.2" H x 2.0" W x 7.8" L Power. 9 Watts (nominal) Input Power. 100 - 240 VAC, 50 - 60 Hz


Operating Temperature. 0 to 40 C Storage Temperature. -30 C to 80 C Operating Humidity. 0 to 95% R.H. (non-condensing)


Designed with the consumer in mind, the Motorola SB4101 cable modem is ready for high speed surfing. Its competitively priced and equipped with a top-mounted stand-by switch for enhanced end user security. The SB4101 simplifies installation with its USB interface and is also hardware-ready to support DOCSIS 1.1 specifications, ensuring advanced Quality of Service (QoS), excellent performance, seamless functionality, exceptional value thats innovative technology.
* When compared to traditional 28.8k analog modems. Actual speeds will vary, and are often less than the maximum possible. Upload and download speeds are affected by several factors including, but not limited to: network traffic and services offered by your cable operator or broadband service provider, computer equipment, type of server, number of connections to server, and availability of Internet router(s). MOTOROLA, the Stylized M Logo and all other trademarks indicated as such herein are trademarks of Motorola, Inc. Reg. U.S. Pat. & Tm. Off. All other product or service names are the property of their respective owners. 2001 Motorola, Inc. All rights reserved. Printed in the U.S.A. Specifications subject to change.

101 Tournament Drive, Horsham, PA 19044 800.523.6678 J-5367-601-5K



SURFboard SB4101 Cable Modem
Power e Receiv Send Online y Act ivit y Standb


Modem Power-on System Test (POST). If LED remains blinking, faulty modem. Modem scanning downstream frequencies. Modem ranging upstream. Downstream and Upstream acquired. Modem processing for DHCP, TFTP, and TOD. Modem operational. Activity light blinks when transmitting or receiving data. Standby switch enabled. Modem successfully completed boot sequence and all LEDs blink off, except Standby. Modem powered off.
SB4101 SURFboard Cable Modem
SURFboard SB4101 Cable Modem LED Status
483826-001-99 Rev C On = J-5362-601-5K

Flashing =

Power off Standby Network Activity Network Connect Upstream Range Downstream Scan Power on
Modem power-on POST (Note A)
Establish time of day using server IP provided by DHCP Hardware failure, replace modem

Did POST pass?

Modem begins scanning for DOCSIS downstream (Note B)
Did CM get TOD? Yes Using TFTP server and filename from DHCP, download the TFTP configuration file

Log error and continue

64 or 256 QAM?

Next 6 MHz scan

CM receive config file?

DOCSIS sync?

BLP enabled?
Using UCD information, begin ranging power at specified upstream frequency (note C) Ranging successful?

Key Authorization

Complete registration with CMTS
Initialization complete (note E) No
Modem begins ranging power at 25 dBmV moving up in 6 dBmV steps to maximum of 60 dBmV and then drops down to 8 dBmV and starts over. Range is attempted 3 times.
Yes RF link is established. Modem will now issue a DHCP broadcast (note D) Yes

Standby LED on (note F)

Yes No

CM assigned IP address?

SB4101 standby switch is enabled



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