USRobotics 3Com User Manual
56k modem
56K Modem
User’s Guide & Reference
This manual covers installation and operating instructions for:
3Com U.S. Robotics Modems
3Com, the 3Com logo, and U.S. Robotics, are registered trademarks of 3Com
Corporation or its subsidiaries. Windows is a registered trademark of Microsoft Corp. Any
other trademarks, trade names or service marks used in this manual are the property of
their respective owners.
Copyright © 2000 3Com Corporation or its subsidiaries
3800 West Golf Road
Rolling Meadows, IL 60008
All Rights Reserved
*IMPORTANT! In accordance with the ITU standard for 56K transmissions (V.90), this modem is capable of
56 Kbps downloads. However, due to FCC rules which restrict power output of the service providers’
modems, current download speeds are limited to 53 Kbps. Actual speeds may vary depending on line
conditions and other factors. Uploads from users to server equipment travel at speeds up to 31.2 Kbps. An
analog phone line compatible with the V.90 standard and an Internet provider or corporate host site
compatible with the V.90 standard are necessary for these high-speed downloads.
See http://www.3com.com/56k for details.