Multitech MultiModem MT2834ZDX Series User manual

FCC Part 15
This equipment has been tested and found to comply with the limits for
a Class B digital device, pursuant to Part 15 of the FCC Rules. These
limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses
and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will
not occur in a particular installation. If this equipment does cause harm-
ful interference to radio or television reception, which can be determined
by turning the equipment off and on, the user is encouraged to try to
correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Plug the equipment into an outlet on a circuit different from that to
which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
This device complies with Part 15 of the FCC rules. Operation is sub-
ject to the following conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any interference that may
cause undesired operation.
WARNING: Changes or modifications to this unit not expressly ap-
proved by the party responsible for compliance could void the user’s
authority to operate the equipment.
Industry Canada
This Class B digital apparatus meets all requirements of the Canadian
Interference-Causing Equipment Regulations.
Cet appareil numerique de la classe B respecte toutes les exigences du
Reglement sur le materiel brouilleur du Canada.

82034908

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Quick Reference Guide
Models MT2834ZDX, MT2834ZDXb, MT2834ZDXI, MT2834DXK
P/N 82034908 Revision I (3/5/99)
Copyright ©1999 by Multi-Tech Systems, Inc.
All rights reserved. This publication may not be reproduced, in whole or in part, without
prior expressed written permission from Multi-Tech Systems, Inc.
Multi-Tech Systems, Inc. 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. Furthermore, Multi-Tech Systems, Inc. reserves the
right to revise this publication and to make changes in the content hereof without obli-
gation of Multi-Tech Systems, Inc. to notify any person or organization of such revi-
sions or changes.
Record of Revisions
Revision Date Description
I3/5/99 Updated agency, technical support, BBS, and Internet sections;
added URLs; deleted CompuServe section.
Trademarks
MultiModem, MultiModemZDX, Multi-Tech, and the Multi-Tech logo are trade-
marks of Multi-Tech Systems, Inc.
Adobe, Acrobat, and Acrobat Reader are trademarks of Adobe Systems Incorporated.
IBM is a trademark of International Business Machines Corporation. Macintosh is
a registered trademark of Apple Computer, Inc. MNP and Microcom Network
Protocol are trademarks of Microcom, Inc. Microsoft, Windows, Windows 95, and
Windows NT are either registered trademarks or trademarks of Microsoft Corpora-
tion in the United States and/or other countries. ProComm Plus is a registered
trademark of Datastorm Technologies, Inc.
Multi-Tech Systems, Inc.
2205 Woodale Drive
Mounds View, MN 55112 U.S.A
[phone] or [phone]
Fax [phone]
Fax-Back Service [phone]
Technical Support [phone]
BBS [phone] or [phone]
Internet
http://www.multitech.com/

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Quick Reference Guide
Chapter 1: Introduction
Congratulations..........................................................................................3
What Is in My Modem Package? ..............................................................4
Chapter 2: Quick Start
Introduction ................................................................................................7
What You’ll Need .......................................................................................7
We supply.............................................................................................7
You supply............................................................................................7
Safety Warnings ........................................................................................8
Step 1: Place the Modem ..........................................................................8
Step 2: Connect the Modem to Your System............................................9
RS232 Connection .............................................................................10
LINE Connection ................................................................................10
PHONE Connection ...........................................................................10
POWER Connection ..........................................................................11
Power-On Test ...................................................................................11
Step 3: Install the Modem in Windows ....................................................12
Adding the Modem to Windows .........................................................12
Removing Your Old Modem from Windows ......................................13
Step 4: Install and Configure Your Software...........................................14
Step 5: Call the Multi-Tech BBS..............................................................16
Windows HyperTerminal ....................................................................16
Windows Terminal..............................................................................18
Running MultiModemZDX Help .........................................................19
References ..............................................................................................20
Chapter 3: Features
What Can I Do with My MultiModemZDX? .............................................23
Features...................................................................................................24
Required Equipment ................................................................................25
Computer............................................................................................25
Serial Cable........................................................................................25
Telephone Line ..................................................................................26

Contents
vii
Communications Software .................................................................26
Connections .............................................................................................27
Connecting to the Computer (“RS232”) .............................................27
Connecting to the Telephone Line (“LINE”).......................................28
Connecting a Telephone Set (“PHONE”)...........................................28
Connecting to Power (“POWER”) ......................................................29
Surge Protectors and Lightning .........................................................29
Front Panel ..............................................................................................30
Speed Indicator Blink Rates ....................................................................32
Chapter 4: AT Commands, S-Registers & Result Codes
AT Commands.........................................................................................35
S-Registers ..............................................................................................56
Result Codes ...........................................................................................59
Chapter 5: Solving Problems
Introduction ..............................................................................................63
None of the LEDs Light When the Modem Is On....................................63
The Modem Does Not Respond to Commands ......................................64
The Modem Dials But Cannot Connect...................................................67
The Modem Disconnects While Online ...................................................69
The Modem Cannot Connect When Answering......................................70
File Transfer Is Slower Than It Should Be ..............................................70
Data Is Being Lost ...................................................................................71
There Are Garbage Characters on the Monitor ......................................71
Fax and Data Programs Can’t Run at the Same Time ...........................72
Appendix A: Regulatory Compliance
FCC Part 68 Telecom..............................................................................75
Fax Branding Statement..........................................................................77
Canadian Limitations Notice....................................................................78
Compliance with BABT Requirements ....................................................79
European Low Voltage Directive .............................................................80
EMC, Safety, and Terminal Directive Compliance..................................80

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Quick Reference Guide
CTR21......................................................................................................81
Australian Modem Warning Notice..........................................................81
Modem Commands ............................................................................81
Call Attempts/Retries .........................................................................82
Use of Supplied Power Transformer..................................................82
For Voice Modems .............................................................................82
New Zealand Telecom Warning Notice...................................................83
Use of Supplied Power Transformer..................................................83
Appendix B: Technical Specifications ........................................85
Appendix C: Warranty, Service, and Technical Support
Limited Warranty .....................................................................................89
Service .....................................................................................................90
Technical Support....................................................................................90
Online Warranty Registration ..................................................................91
The Multi-Tech BBS ................................................................................91
To Log on to the Multi-Tech BBS.......................................................91
To Download a File ............................................................................92
About the Internet ....................................................................................93
About the Multi-Tech Fax-Back Service ..................................................94

Contents
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Quick Reference Guide

1
Introduction

Quick Reference Guide
2