3Com U.S. Robotics 56K Winmodem Manuel utilisateur
56K Winmodem
User’s Guide & Reference
PN 1.024.1721-00
This manual covers installation and operating instructions for the following modems:
3Com U.S. Robotics®56K* Winmodem®
3Com U.S. Robotics®56K* Voice Winmodem®
3Com, the 3Com logo, U.S. Robotics, and Winmodem 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 © 1998 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 or 3Com 56K technology,
and an Internet provider or corporate host site compatible with the V.90 standard or 3Com 56K
technology are necessary for these high-speed downloads.
See http://www.3com.com/56k for details.
PRODUCT DISCLAIMER
•This manual covers features that may or may not be present on your modem.
Please consult your computer manufacturer’s documentation for a list of your
modem’s supported features.
•For service and repair issues, contact your computer system manufacturer.
TABLE OF CONTENTS
Welcome to 56K*Information Access 1
Product Features 3
Voice Product Features
Voice Product FeaturesVoice Product Features
Voice Product Features 5
Installing the Winmodem with Windows 95, Windows 98, and
Windows NT 4.0 7
Plug and Play (PNP) Installation 7
How to Insert the Modem into the Computer 8
Installing Winmodem Drivers with Windows 95 13
Installing Winmodem Drivers with Windows 98 15
Installing Winmodem Drivers with Windows NT 4.0
without PNP Enabled 18
Installing Winmodem Drivers with Windows NT 4.0
with PNP Enabled 19
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CONTENTS
ONTENTSONTENTS
ONTENTS
Uninstalling the Winmodem with Windows 95, Windows 98,
and Windows NT 4.0 23
Troubleshooting 25
Glossary 37
Technical Reference 51
Typing Commands 51
Basic Data Commands 52
Extended Data Commands 60
S-Registers 69
Fax Commands 80
Screen Messages 82
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CONTENTS
ONTENTSONTENTS
ONTENTS
Regulatory Information 83
Manufacturer's Declaration of Conformity 83
Caution to the User 84
IC (Canada) 84
UL Listing/CUL Listing 84
Connecting to the Telephone Company 84
Fax Branding 85
Radio and Television Interference 85
For Canadian Modem Users 87
WELCOME TO 56K* INFORMATION ACCESS
1
The International Telecommunication Union
(ITU) determines the technical protocols that
communications devices must use to operate
with each other. Modems that comply with
ITU standards can “talk” to other standards-
compliant modems and fax machines
worldwide.
The ITU has decided on a worldwide
standard for 56K modem technology. With a
3Com U.S. Robotics modem, you can get
56K Internet access from any service
provider who offers the ITU V.90 standard
or 3Com 56K technology. 3Com is working
with providers everywhere to quickly
upgrade their service to the ITU V.90
standard.
* 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 or 3Com 56K technology, and an
Internet provider or corporate host site
compatible with the V.90 standard or 3Com
56K technology are necessary for these high-
speed downloads. See
http://www.3com.com/56k for details.
PRODUCT FEATURES
3
Modulation Schemes
ITU-T V.90
3Com 56K technology
ITU-T V.34+
ITU-T V.34
ITU-T V.32bis
ITU-T V.32
ITU-T V.23
ITU-T V.22bis
ITU-T V.22
Bell 212A
ITU-T V.21
Bell 103
Error Control and Data
Compression Schemes
ITU-T V.42
ITU-T V.42bis
MNP 2-5
Fax Modulation Schemes
ITU-T V.17
ITU-T V.29
ITU-T V.27ter
ITU-T V.21
Fax Standards
EIA 578 Class 1 FAX
EIA 592 Class 2.0 FAX
Front Channel Link Rates
28000, 29333, 30666, 32000,
33333, 34666, 36000, 37333,
38666, 40000, 41333, 42666,
44000, 45333, 46666, 48000,
49333, 50666, 52000, 53333,
54666, 56000, 57333
Back Channel Link Rates
4800, 7200, 9600, 12000,
14400, 16800, 19200, 21600,
24000, 26400, 28800, 31200
V.34+ Link Rates
4800, 7200, 9600, 12000,
14400, 16800, 19200, 21600,
24000, 26400, 28800, 31200,
33600
V.32bis Link Rates
4800, 7200, 9600, 12000,
14400
Additional Link Rates
300, 1200/75 (V.23), 1200,
2400
Fax Link Rates
2400, 4800, 7200, 9600, 12000,
14400
VOICE PRODUCT FEATURES
5
If your new modem has voice
If your new modem has voiceIf your new modem has voice
If your new modem has voice
capabilities,
capabilities,capabilities,
capabilities, the following information
will apply:
Speakerphone
SpeakerphoneSpeakerphone
Speakerphone
With the addition of a microphone, a set of
external, powered speakers, and the
appropriate software, your new voice
modem provides all the convenience of a
full-duplex speakerphone. Unlike many
half-duplex speakerphones, your modem
allows you to converse normally without
annoying echoes and distortion. Simply
plug the speakers into the jack on the
modem identified with the and the
microphone into the jack with the icon
and you are ready to go.
For voice enabled modems that do not have
audio connectors on the bracket, you will
have to connect your modem to the sound
card via the 4-pin connector which is found
on the modem card.
Personal Voice Mail
Personal Voice MailPersonal Voice Mail
Personal Voice Mail
Personal Voice Mail turns your modem into
a full-featured messaging system. Enjoy the
convenience of professional voice mail in
your home or office for a fraction of the
cost.
V
VV
VOICE
OICEOICE
OICE P
PP
PRODUCT
RODUCTRODUCT
RODUCT F
FF
FEATURES
EATURESEATURES
EATURES
6
With Personal Voice Mail and the
appropriate software, you can record
custom greetings, receive messages, and set
up multiple voice “mailboxes.” You can
even access your voice messages remotely.
Your modem will automatically detect
incoming fax/data/voice calls and route
them appropriately.
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