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Robotics modem: 56K* Voice Faxmodem Internal * IMPORTANT! In accordance with the ITU standard for V.90 transmissions, this modem is capable of 56 Kbps downloads. However, the download speeds you experience may be lower due to varying line conditions and other factors. Uploads from users to server equipment travel at speeds up to 31.2 Kbps. An analogue phone line compatible with the ITU V.90 standard or 3Com’s proprietary 56K technology, and an Internet provider or corporate host site with the ITU V.90 standard or 3Com’s proprietary 56K technology are necessary for these high-speed downloads. The ITU V.90 standard was officially determined in February, 1998 and is expected to be ratified in September, 1998. See for details. The material contained in this document is for information purposes only and is subject to change without notice. 3Com makes no representations or warranties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability or fitness for any particular purpose. No part of this document may be reproduced, transmitted, transcribed, or stored in a retrieval system in any form or by any means, mechanical, magnetic, electronic, optical, chemical or otherwise, without the written permission of 3Com. 3Com assumes no responsibility for errors or omissions in this manual. Nor does 3Com make any commitment to update the information contained herein. 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, service marks, or service names owned or registered by any other company and used in this manual are the property of their respective owners. Copyright a1998 3Com Corporation or its subsidiaries All rights reserved. Table of Contents WELCOME TO 56K INFORMATION ACCESS......................................1 PRODUCT FEATURES.......................................................................2 INTERNAL MODEM INSTALLATION WITH WINDOWS 95...................5 DETERMINING AVAILABLE RESOURCES....................................................5 DETERMINING YOUR VERSION OF WINDOWS 95.........................................6 PLUG AND PLAY INSTALLATION............................................................7 HOW TO PREPARE FOR PLUG AND PLAY INSTALLATION .............................7 HOW TO INSERT THE MODEM INTO THE COMPUTER .....................................8 INSTALLING MODEM DRIVERS WITH WINDOWS 95: Versions 950 and 950a (Moving Through the “New Hardware Found” Screens)...................................12 Version 950b (Using the Update Device Driver Wizard Screens)....16 INTERNAL MODEM INSTALLATION WITH WINDOWS 3.X ...............20 A Word about COM Ports and IRQs............................................20 How to Change the Modem’s Settings..........................................21 How to Insert the Modem into the Computer.................................23 SOFTWARE INSTALLATION ...........................................................29 WINDOWS 95..................................................................................29 WINDOWS 3.X.................................................................................29 TYPE OF MODEM..............................................................................30 INITIALISATION STRING......................................................................30 FLOW CONTROL..............................................................................30 TROUBLESHOOTING ......................................................................31 SUPPORT RESOURCES..................................................................39 ARE YOU STILL HAVING PROBLEMS?...................................................40 IF YOU MUST RETURN THE MODEM TO US .............................................40 GLOSSARY.....................................................................................41 Table of Contents TECHNICAL REFERENCE ................................................................51 TYPING COMMANDS..........................................................................51 BASIC DATA COMMANDS ..................................................................51 EXTENDED DATA COMMANDS.............................................................57 S-REGISTERS..................................................................................64 FAX COMMANDS .............................................................................71 THE SERIAL INTERFACE (CABLE INFORMATION) .......................................73 REGULATORY (CE COMPLIANCE)...................................................74 ELECTROMAGNETIC COMPATIBILITY......................................................74 RINGER EQUIVALENCE NUMBER...........................................................74 LIMITED WARRANTY......................................................................75 We...