Multitech MultiModem MT2834ZPW User manual

Model MT2834ZPW
Owner’s Manual

Owner's Manual
82056900 Revision A — 11/7/96
Model MT2834ZPW
Copyright © 1996 by Multi-Tech Systems, Inc.
This publication may not be reproduced, in whole or in part, without prior ex-
pressed written permission from Multi-Tech Systems, Inc. All rights reserved.
Multi-Tech Systems, Inc. makes no representations or warranties with respect
to the contents hereof and specifically disclaims any implied warranties of mer-
chantability or fitness for any particular purpose. Furthermore, Multi-Tech Sys-
tems, Inc. reserves the right to revise this publication and to make changes from
time to time in the content hereof without obligation of Multi-Tech Systems, Inc.
to notify any person or organization of such revisions or changes.
Record of Revisions
Revision Date Description
A 11/7/96 Manual released.
Trademarks
MultiModem, MultiModemZPW, Multi-Tech, and the Multi-Tech logo are trade-
marks of Multi-Tech Systems, Inc.
Pentium is a registered trademark of Intel Corporation. MNP is a registered
trademark of Microcom Inc. Microsoft, Windows, and Windows 95 are either
registered trademarks or trademarks of Microsoft Corporation in the United
States and/or other countries.
Patents
This product is covered by one or more of the following U.S. Patent numbers:
5,301,274; 5,452,289; 5,535,204 . Other patents pending.
Multi-Tech Systems, Inc.
2205 Woodale Drive
Mounds View, MN 55112
Phone: [phone] or 800-328-9717
Tech Support: 800-972-2439
BBS: 612-785-3702 or 800-392-2432
Fax: [phone]
FaxBack: 612-717-5888
Web Site: www.multitech.com
FTP Site: ftp.multitech.com
Tech Writer: [email protected]

Contents
Chapter 1 - Intorduction and Description
Congratulations ............................................................................................ 6
Features........................................................................................................ 6
Data ....................................................................................................... 6
Fax ......................................................................................................... 7
Voice ...................................................................................................... 7
What is in Your Modem Package? ............................................................... 8
Manual Organization .................................................................................... 8
Section I: Getting Started...................................................................... 8
Section II: Modem Installation............................................................... 8
Section III: Using Your Modem.............................................................. 9
Section IV: Troubleshooting .................................................................. 9
Typographic Conventions........................................................................... 10
Chapter 2 - Installing Your Modem
Introduction................................................................................................. 12
What You’ll Need ........................................................................................ 12
We supply ............................................................................................ 12
You supply ........................................................................................... 12
Safety Warnings ......................................................................................... 13
Installation .................................................................................................. 13
Step 1: Install the MT2834ZPW into the Computer............................ 14
Step 2: Connect the Phone Line......................................................... 15
Step 3: Connect a Microphone and Speaker ..................................... 16
Step 4: Install the Windows 95 Drivers............................................... 17
Chapter 3 - Testing Your Installation
Introduction................................................................................................. 20
Step 1: Check the COM Port Installation ................................................... 20
Step 2: Call the Multi-Tech BBS................................................................. 22
How to Run MultiModemZPW Help .................................................... 23
How to Remove Your Old Modem from Windows 95 ......................... 24
Step 3: Send a Fax..................................................................................... 25
Other Ways to Access Microsoft Fax .................................................. 26
Step 4: Test the Voice Function ................................................................. 27
Answering Machine Test ..................................................................... 27
Loopback Test ..................................................................................... 27
Speakerphone Test ............................................................................. 28

Chapter 4 - Configuring Your
Communications Software
Introduction................................................................................................. 30
Configuring Communications Software ..................................................... 30
Chapter 5 - Controlling Your Modem
AT Commands ............................................................................................ 34
S-Registers ................................................................................................. 45
Result Codes .............................................................................................. 47
Chapter 6 - Solving Problems
Introduction................................................................................................. 50
Initial Checklist............................................................................................ 50
Common Problems ..................................................................................... 51
The Modem Does Not Respond to Commands.................................. 51
The Modem Dials But Cannot Make a Connection ............................ 53
The Modem Disconnects While Online .............................................. 55
The Modem Cannot Connect When Answering ................................. 56
File Transfer Appears Slower Than It Should Be ............................... 56
Data Is Being Lost ............................................................................... 56
There Are Garbage Characters on the Monitor .................................. 57
Fax and Data Software Won’t Run at the Same Time ....................... 57
Chapter 7 - Warranty, Service and Tech Support
Introduction................................................................................................. 60
Limited Warranty ........................................................................................ 60
Technical Support ....................................................................................... 61
Recording Modem Information............................................................ 61
Service ........................................................................................................ 62
The Multi-Tech BBS.................................................................................... 63
Logging on to the Multi-Tech BBS ...................................................... 63
Downloading a File.............................................................................. 63
Reading a Message ............................................................................ 65
Leaving a Message ............................................................................. 65
Bulletins ............................................................................................... 65
About CompuServe .................................................................................... 66
About the Internet....................................................................................... 66
About the Multi-Tech Fax-Back Service ..................................................... 67
Appendices
Appendix A: Regulatory Compliance ......................................................... 70
Appendix B: Technical Specifications ........................................................ 80
Appendix C: ASCII Conversion Chart ........................................................ 83
Index

Chapter 1 - Intorduction and Description

MT2834ZPW Owner’s Manual
6
Congratulations
Congratulations on your purchase of one of the finest internal data/fax/
voice modems available today: the MultiModemZPW™from Multi-Tech
Systems.
The MultiModemZPW is an internal, half-length, fax modem card that
can be plugged into any 16-bit ISA expansion slot. Its unique
controllerless design uses your personal computer’s processing power
to handle many communication functions normally done by the modem,
a feature that gives the MultiModemZPW significant flexibility and
upgrade potential as faster microprocessors become available.
This owner’s manual will help you to install, configure, use, and
troubleshoot your modem.
Features
The MultiModemZPW is a full-featured internal data/fax/voice modem
designed for Pentium computers running the Windows® 95 operating
system. General features include:
• Easy Windows 95 Plug-and-Play (PnP) installation.
• Compliance with major ITU-T, TIA, and EIA international standards
to ensure compatibility with other modems.
• Discrimination between data, fax, and voice calls.
• Caller ID to identify your caller’s phone number.
• Compliance with the V.80 standard, allowing video conferencing
over analog telephone lines with any H.324 video phone system.
Data
• Supports the enhanced ITU-T V.34 standard, with data
transmission speeds to 33.6K bps, while also maintaining
compatibility with lower-speed modems, including the AT&T®
V.32terbo open standard.
• Supports asynchronous data rates at 33.6K, 31.2K, 28.8K, 26.4K,
24K, 21.6K, 19.2K, 16.8K, 14.4K, 12K, 9600, 4800, 2400, 1200,
and 0–300 bps.
• Automatic fallback to slower speeds in noisy line conditions, and
fall-forward to faster speeds as conditions improve.

Chapter 1 - Introduction and Description
7
• ITU V.42 LAP-M and MNP Class 3 and 4 error correction.
• ITU V.42bis (4-to-1) and MNP 5 (2-to-1) data compression.
• Automatic disabling of compression when transferring already-
compressed files.
• Autodial, redial, pulse (rotary) and touch-tone dial.
• Dial tone and busy signal detection for reliable call-progress
detection.
• Compatibility with the standard AT command set used by most
communication programs.
• Stores up to four telephone numbers.
Fax
• Supports V.17, Group 3 fax communication standards, allowing it to
communicate with other fax modems as well as with fax machines.
• Responds to Class 1 fax commands, enabling it to exchange
editable and encrypted faxes with other Windows 95 computers.
• Sends and receives faxes from your computer at 14,400 bps, 9600
bps, 7200 bps, 4800 bps, 2400 bps, or 300 bps.
Voice
• Full-duplex speakerphone support with adjustable speaker volume
control. Can record and play back answering machine messages
using optional microphone and speaker.
• Remote/local telephone answering machine (TAM) capabilities
include voice mail control, record/playback, and call screening.
• Supports the TIA/EIA IS-101 AT+V voice command set.

MT2834ZPW Owner’s Manual
8
What is in Your Modem Package?
Your MultiModemZPW package should contain the following items:
• One MultiModemZPW internal fax modem card
• One MultiModemZPW Drivers disk
• One telephone cable
• Communications software and reference manual
• One brochure with a warranty card
• This MultiModemZPW Owner’s Manual
If any of these items are missing, please contact Multi-Tech Systems or
your dealer/distributor.
Manual Organization
This manual contains four sections:
Section I: Getting Started
Chapter 1: Introduction and Description
This chapter introduces the MT2834ZPW, briefly describing its features
and package contents. It also describes the typographic conventions
used in this manual.
Section II: Modem Installation
Chapter 2: Installing Your Modem
This chapter describes first how to install the modem in your computer
and connect it to a telephone, telephone line, microphone, and speaker.
It also describes how to install the modem’s drivers in Windows 95.
Chapter 3: Testing Your Installation
This chapter describes several tests you can make to confirm that your
installation is working correctly. The tests, which include step-by-step
instructions for downloading a file and sending a fax, also serve as
minitutorials for those who are new to online communications concepts.

Chapter 1 - Introduction and Description
9
Section III: Using Your Modem
Chapter 4: Configuring Your Communications Software
This chapter helps you get the most from your modem by describing
how to configure communications software written for older operating
systems, as well as for Windows 95.
Chapter 5: Controlling Your Modem
This chapter contains concise descriptions of the AT commands that
control your modem; its S-registers, which affect how the commands
work; and its result codes, which provide you and your software with
operational feedback.
Section IV: Troubleshooting
Chapter 6: Solving Problems
This chapter describes some common problems you may run into with
your modem, and how to solve them.
Chapter 7: Warranty, Service, and Technical Support
This chapter contains the terms of your warranty and describes how to
get help from Multi-Tech Systems for problems you cannot resolve
yourself. It includes our technical support phone number, and how to
access us through our BBS, the Internet, CompuServe, and our fax-
back service.
Appendices
Appendix A: Regulatory Compliance
Appendix B: Technical Specifications
Appendix C: ASCII Conversion Chart

MT2834ZPW Owner’s Manual
10
Typographic Conventions
This manual uses the following typographic conventions:
You type this Text entered by you is shown in boldface.
Spell the entry exactly as shown, using upper
and/or lower case type. However, when you
see <CR>, press the ENTER key; do not spell it
as shown.
AT command Bold, italicized type is used for an AT or
S-register command, but only when we do not
intend you to type it.
Screen message Italics are used for screen messages in addition
to conventional uses, such as book and manual
titles.
KEYBOARD KEY Names of keyboard keys are shown in all caps
(e.g., BACKSPACE).
<Function Key> Angle brackets indicate a non-literal entry. For
example, <CR> represents the carriage return
character that is sent by the key labeled “Enter”
on most keyboards.
D:\PATH\FILENAME File name and/or path. In the following
example, a request for a file path is indicated
as:
D:\PATH\FILENAME
D is the drive, and PATH
is the full directory
path where the file is found.
ENTER, <CR> Instructs you to press the Return, Enter, or
Carriage Return key (depending on how your
keyboard is marked).
ALT+X, CTRL+X Instructs you to hold down the ALT or CTRL
key while you press the key represented by X.
0, O Please note the difference between a zero and
the letter O . This is a zero: 0. This is a capital
O : O.

Chapter 2 - Installing Your Modem

MT2834ZPW Owner’s Manual
12
Introduction
This chapter describes step-by-step how to install the MT2834ZPW into
your computer and the MT2834ZPW drivers into Windows 95.
What You’ll Need
Before you start, please make sure you have everything you need:
We supply
• One MT2834ZPW internal fax modem card
• One MT2834ZPW Drivers disk
• One telephone cable
• Communications software and reference manual
• This MultiModemZPW Owner’s Manual
You supply
• A 100-MHz or faster Pentium PC. We recommend a 166-MHz or
faster PC for video conferencing.
• 16 MB RAM installed
• Windows 95 installed
• A 3.5-inch floppy disk drive
• An empty 16-bit ISA expansion slot
• Tools to open your computer
• The computer’s manual
• A nearby telephone line jack
• An external speaker or headphone (optional)
• An external microphone (optional)

Chapter 2 - Installing Your Modem
13
Safety Warnings
• Never install telephone wiring during a lightning storm.
• Never install telephone jacks in wet locations unless the jack is
specifically designed for wet locations.
• Never touch uninsulated telephone wires or terminals unless the
telephone line has been disconnected at the network interface.
• Use caution when installing or modifying telephone lines.
• Avoid using a telephone (other than a cordless type) during an
electrical storm. There may be a remote risk of electrical shock
from lightning.
• Do not use a telephone in the vicinity of a gas leak.
Installation
Installation of the MT2834ZPW consists of four steps, one of which is
optional: (1) Installation of the modem in the computer; (2) connection
of the modem to the telephone line and, optionally, to your telephone;
(3) optional connection of the modem to an external speaker and
microphone; and (4) installation of the modem’s drivers.
Figure 2-1. MT2834ZPW

MT2834ZPW Owner’s Manual
14
Step 1: Install the MT2834ZPW into the
Computer
Warning: For qualified service personnel only.
Installation of the MT2834ZPW requires you to open your computer.
Please consult the computer manual in addition to the following
instructions:
1. Turn off the computer and unplug it. Failure to do so may result in
damage to both the MT2834ZPW and the computer. Do not turn
the computer on until the instructions tell you to do so.
2. Remove the cover from the computer as instructed in the computer
manual.
3. Select an empty 16-bit half- or full-size ISA expansion slot. Remove
the expansion slot cover and save the retaining screw.
4. Before handling the MT2834ZPW, discharge any static in your body
by touching a piece of grounded metal such as a water faucet.
Carefully remove the MT2834ZPW from its anti-static bag, handling
it only by the mounting bracket and edges. Do not touch the gold-
plated connectors along the bottom edge.
5. Placing the MT2834ZPW directly above the expansion slot, gently
but firmly push it into the connector until the card’s retaining
bracket is flush against the computer chassis.
6. With the screw you saved in step 3, fasten the retaining bracket to
the computer chassis.
7. Replace the cover of the computer.

Chapter 2 - Installing Your Modem
15
Step 2: Connect the Phone Line
The MT2834ZPW communicates over public switched telephone
network lines, also known as the “plain old telephone system.”
Use the modular telephone cable provided with the modem to connect
the MT2834ZPW to your telephone wall jack. If you do not have a
standard modular wall jack near your computer, you should install one,
or have one installed for you by your telephone company. In the U.S.,
installation kits and adapters are available wherever telephones are
sold.
1. Plug one end of the supplied modular telephone cable into the
MT2834ZPW's LINE jack. See Figure 2-2.
2. Plug the other end of the telephone cable into a working telephone
wall jack.
3. If you wish to connect a telephone to your modem, plug the
telephone’s line cable into the MT2834ZPW's PHONE jack.
4. If you wish to use a microphone and/or speaker with the
MT2834ZPW, continue with “Step 3: Connect a Microphone and
Speakers”; otherwise continue with “Step 4: Install the Windows 95
Drivers.”

MT2834ZPW Owner’s Manual
16
Step 3: Connect a Microphone and Speaker
If you wish, you can use a microphone and speaker with the
MT2834ZPW. The microphone can be used for recording answering
machine messages, or for speakerphone use. The speaker can be used
for playing back messages, or for speakerphone use. See Figure 2-2.
MIC IN
LINE OUT
LINE
PHONE
PHONE jack to connect
an optional telephone
LINE OUT jack to connect
optional speakers
MIC IN jack to connect
an optional microphone
LINE jack to connect
to the telephone line
Figure 2-2. MT2834ZPW Connectors
1. To connect a microphone, insert the microphone plug into the
modem's MIC IN jack.
2. To connect a speaker or headphone, insert the speaker or
headphone plug into the modem's LINE OUT jack.

Chapter 2 - Installing Your Modem
17
Step 4: Install the Windows 95 Drivers
1. Plug in and turn on your computer. As your computer boots, it
automatically detects the MT2834ZPW, and the New Hardware
Found dialog box appears.
2. In the New Hardware Found dialog box, select “Driver from disk
provided by hardware manufacturer” (the default selection). Then
click the OK button. The Install from Disk window appears.
3. Insert the MT2834ZPW Drivers disk into your computer's floppy
drive, select the drive letter (A:\ is the default), and click on the OK
button. The computer installs the software drivers needed to
communicate with your MT2834ZPW, then displays the Windows
95 desktop.
4. Installation of the MT2834ZPW is complete. If you plan to use the
provided communications software, install it now according to the
instructions provided in its manual, then follow the instructions in
Chapter 3, “Testing Your Installation.”

MT2834ZPW Owner’s Manual
18

Chapter 3 - Testing Your Installation

MT2834ZPW Owner’s Manual
20
Introduction
All Multi-Tech modems are thoroughly tested before they leave the
factory. Nonetheless, for your own peace of mind, we recommend that
you run the following tests after installing your MT2834ZPW, to confirm
that it works with your system. Users who are new to Windows 95, or
have never downloaded a file or sent a fax from a computer before, will
also find this chapter valuable as a mini-tutorial.
Step 1: Check the COM Port Installation
Unlike an external modem, the MT2834ZPW contains its own serial
port. When Windows 95 detects the MT2834ZPW, it assigns the next
available COM port number to it. Since COM1 and COM2 are standard
serial ports in Windows computers, Windows 95 typically assigns COM3
to the MT2834ZPW’s serial port. Windows 95 also assigns the
MT2834ZPW a port address and interrupt request (IRQ) number.
Because the number of IRQs is limited, a computer with several
accessories may not have an available IRQ for your new modem. In that
case, you may have to decide which of your other accessories you can
modify or do without.
Use the following procedure to check the assignments Windows has
made for your modem:
1. Click on the Start button, point to Settings, click on Control Panel,
and double-click on the System icon.
2. When the System Properties sheet appears, click on the Device
Manager tab. A list of device types appears.
3. Double-click on “Modem” for a list of modems installed in your
computer.
4. Double-click on “Multi-Tech MT2834ZPW.” The Multi-Tech
MT2834ZPW Modem Properties sheet appears.
5. Click on the Resources tab, and note the Conflicting Device List; if
there is a conflict between your modem and another device in your
computer, the information appears here. For help in resolving a
conflict, click on the Start button, click on Help, and then search the
Help index for the Hardware Conflict Troubleshooter.