Multitech MultiModem MT2834ZPX Manuel utilisateur
Model Number MT2834ZPX
Owner's Manual
Owner’s Manual
82041404 Revision E — 11/25/96
#MT2834ZPX
This publication may not be reproduced, in whole or in part, without prior
expressed written permission from Multi-Tech Systems, Inc.
All rights reserved.
Copyright © 1996, by 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 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 Description
EManual revised. This manual documents enhancements
(11/25/96) implemented in firmware version 0.22. Theses enhancements
include extended V.34 rates (33.6K/31.2K); and overall format and
editorial changes throughout this manual.
Trademarks of Multi-Tech Systems, Inc. are as follows: MultiExpress,
MultiExpressFax, MultiModem, MultiModemII,
MultiModemµ, Multi-Tech and the Multi-Tech logo.
MNP, Microcom Network Protocol is a trademark of Microcom Inc.
Macintosh is a trademark of Apple Computer Inc.
PC-DOS: International Business Machines Corporation
Pentium: Intel Corporation
AT&T is a trademark of American Telephone and Telegraph Co.
Windows® and Windows® 95 are registered trademarks of Microsoft
Multi-Tech Systems, Inc.
2205 Woodale Drive
Mounds View, Minnesota 55112 U.S.A.
(612) 785-3500 or (800) 328-9717
U. S. FAX 612-785-9874
Fax-Back Service 612-717-5888
Technical Support (800) 972-2439
BBS (612) 785-3702 or (800) 392-2432
Internet Address: http://www.multitech.com
Contents
Chapter 1 - Introduction and Description
Introduction................................................................................................................ 5
Modem Features ....................................................................................................... 5
Fax Features ............................................................................................................. 6
Product Description................................................................................................... 6
How to Use This Manual........................................................................................... 7
Chapter 2 - Installation and Configuration
Installation ................................................................................................................. 9
Safety Warnings ........................................................................................................ 9
Configuration/Installation Procedure...................................................................... 10
Is Your MT2834ZPX Ready for Use? ..................................................................... 12
Operating Your MT2834ZPX .................................................................................. 13
Simple Operations .................................................................................................. 14
Chapter 3 - Software Configuration
Introduction.............................................................................................................. 15
ConfiguringSoftware for Your Modem............................................................ 15
PC Initialization Strings........................................................................................... 16
Changing Default Parameters ................................................................................ 17
Configuring Software for Your Computer ............................................................... 17
Configuring Software for the Remote System ............................................... 18
Terminal Emulation ......................................................................................... 18
File Transfer Protocols.................................................................................... 19
When to Disable Data Compression ...................................................................... 19
Disabling Error Correction .............................................................................. 20
The 16550 UART and Windows 3.1 ....................................................................... 20
Chapter 4 - AT Commands, S-Registers and Result Codes
Dialing/On-Line/Answering ..................................................................................... 22
Modem AT Commands ........................................................................................... 23
Remote Configuration..................................................................................... 38
Remote Configuration Procedures................................................................. 38
Password Commands.................................................................................... 39
S-Registers.............................................................................................................. 40
AT Commands and S-Register Summary...................................................... 48
Chapter 5 - Troubleshooting
Troubleshooting.......................................................................................................49
The Modem Does Not Respond to Commands............................................49
The Modem Dials But Cannot Make a Connection.......................................51
The Modem Disconnects While Online..........................................................53
The Modem Cannot Connect When Answering............................................54
File Transfer Is Slower Than It Should Be.....................................................54
Losing Data.....................................................................................................54
Getting Garbage Characters on the Monitor.................................................55
Fax and Communications Software Won’t Run at the Same Time..............55
Chapter 6 - Testing Your Modem
Local Analog Loopback Test/V.54 Loop 3..............................................................56
Digital Loopback Test/V.54 Loop 2 (Local/Manual)...............................................57
Digital Loopback Test/V.54 Loop 2 (Remote/Automatic).......................................58
Chapter 7 - Service, Warranty and Tech Support
Introduction..............................................................................................................60
Limited Warranty.....................................................................................................60
On-line Warranty Registration........................................................................61
Tech Support...........................................................................................................61
Recording Modem Information.......................................................................61
Service.....................................................................................................................62
About the Multi-Tech BBS.......................................................................................63
To log on to the Multi-Tech BBS.....................................................................63
To Download a file..........................................................................................63
About CompuServe/Internet...................................................................................65
About the Multi-Tech Fax-Back Service.................................................................65
Appendix A- Technical Specifications
Appendix B - Tone Dial Frequencies
Appendix C - FCC and Canadian Regulations
FCC Regulations for Telephone Line Interconnection...........................................71
Canadian Limitations Notice...................................................................................74
Index
5
Chapter 1 - Introduction and Description
Chapter 1 - Introduction and Description
Introduction
Welcome to the world of data communications. You have acquired
one of the finest intelligent data and fax modems available today,
model MT2834ZPX, from Multi-Tech Systems. This Owner’s Manual
will help you install, configure, test and use your MT2834ZPX data/fax
modem.
Modem Features
Your MT2834ZPX modem meets the proposed
Enhanced
V.34 ITU
standard for data signalling rates as high as 33.6/31.2K bps full-duplex
mode. Connections are made on Public Switched Telephone Networks
(
PSTNs
). V.34 supports and is compatible with all V.32/V.32
bis
/
V32
terbo
features including EIA extended Automode, adaptive line
probing, automatic symbol rate and carrier frequency during start-up,
and retrain and rate renegotiation (in 2400 bps increments).
Your modem features CCITT V.42 error correction and V.42bis data
compression, providing 100% error-free data transmission. V.42 error
correction incorporates MNP( Classes 3 and 4, and LAP-M. You may
select V.42bis data compression for 4-1 throughput, or MNP Class 5
for 2-1 throughput.)
Your MT2834ZPX offers interactive automatic dialing, as well as
Command Mode option configuration. You may store up to ten
command line/telephone numbers, of up to 60 characters each, in the
modem’s nonvolatile memory. The modem pulse or tone dials, and
recognizes dial tones and busy signals for reliable call-progress
detection. The modem can detect AT&T calling card tones. It is FCC-
Registered for connection to telephone networks without any Data
Access Arrangements (DAA’s).
Your modem also features Remote Configuration which permits you to
assist users at remote sites, saving you the time and trouble of site
visits and preventing misinterpretation of configuration instructions.
6
MT2834ZPX Owner's Manual
Fax Features
Your MT2834ZPX meets the CCITT V.17 standard for sending and
receiving faxes. When linked to a compatible fax machine or modem,
it can transmit faxes at 14.4 K bps. It also meets the CCITT’s Group 3
Designation for sending and receiving faxes at 9600 bps; and Group 2
Designation for sending and receiving faxes at 4800 bps. The
MT2834ZPX is also downward-compatible with modems to speeds as
low as 300 bps, so it can send and receive faxes with any fax machine
in the world.
Product Description
The MT2834ZPX is a internal half-length fax/modem card for IBM
Personal Computers (PC, XT, AT Pentium or compatible units); and
fits into a full- or half-size expansion slot. The MT2834ZPX provides
dial-up asynchronous communication capability with other personal
computers, terminals, on-line computer services or other types of
computer systems. Connection to the phone line is made possible by
an RJ11 modular type connector. The MT2834ZPX can be configured
as either a COM1, COM2, COM3, or COM4 communication port; with
a selection of 5 IRQ values. Selection of a specific COM port/IRQ
value is accomplished by choosing the proper berg jumpers located on
the MT2834ZPX's circuit board. Hardware configuration and
installation procedures are described in Chapter 2.
7
Chapter 1 - Introduction and Description
How to Use This Manual
This manual is divided into seven chapters and two appendices. The
information contained in each chapter and appendix is as follows:
Chapter 1 - Introduction and Description
Chapter 1 begins with a short product introduction and description;
followed by a guide (which you are now reading) to the use of this
manual.
Chapter 2 - Installation and Connection
Chapter 2 documents the procedure for connecting the MT2834ZPX to
your computer and to the phone line. Details are given, supported by
illustrations on determining Base I/O addressing and setting IRQ
values as a guide for installing your MT2834ZPX to the point of
operation.
Chapter 3 - Software Configuration
Chapter 3 documents communication software configuration
recommended specifically for the MT2834ZPX. There is also some
discussion of how to identify the limitations and capabilities of your
computer before the software installation process is done. Some other
issues covered in this chapter include setting up initialization strings,
changing default parameters, configuring software for the remote
system and file transfer protocols.
Chapter 4 - "AT" Commands and S-Registers
This chapter focuses on the use of “AT” commands and S-Registers.
Chapter 4 provides basic steps for originating and answering calls and
a summary of commands that enable the user to establish, read, and
modify parameters in addition to dialing.
Chapter 5 - Troubleshooting Your MT2834ZPX
Chapter 5 lists some basic and specific actions to take if your
MT2834ZPX is not operational.
8
MT2834ZPX Owner's Manual
Chapter 6 - Testing Your Modem
Chapter 6 covers the modem's built-in test features. These are:
Power-on Self Test, Local Analog Loopback, Digital Loopback and
Remote Digital Loopback Tests. We have included a description of
each test and how to use each test procedure.
Chapter 7 - Service, Warranty & Technical
Support/ BBS
Chapter 7 provides instructions for getting modems serviced at the
factory and information on product warranty; information about Multi-
Tech's user Bulletin Board Service (
BBS
) and receiving technical
support via the CompuServe and Internet forums.
Appendices
Appendix A - Technical Specifications
Appendix B - Tone Dial Frequencies
Appendix C - FCC and Canadian Regulations
9
Chapter 2 - Installation and Configuration
Chapter 2 - Installation and Configuration
Installation
This chapter provides you with the procedures to install the Multi-Tech
MT2834ZPX card in your ISA or EISA bus personal computer.
Hardware installation involves:
1) Opening your PC.
2) Setting card configuration (determining COM port
setting and IRQ level).
3) Installing the card into the PC.
Safety Warnings
1. Never install telephone wiring during a lightning storm.
2. Never install telephone jacks in wet locations unless the jack is
specifically designed for wet locations.
3. This product is to be used with
UL
and
CUL
listed computers.
4. Never touch uninsulated telephone wires or terminals unless the
telephone line has been disconnected at the network interface.
5. Use caution when installing or modifying telephone lines.
6. Avoid using a telephone (other than a cordless type) during an
electrical storm. There may be a remote risk of electrical shock
from lightning.
7. Do not use the telephone to report a gas leak in the vicinity of the
leak.
10
MT2834ZPX Owner's Manual
Configuration/Installation Procedure
Perform the procedures in Table 2-1 to configure and install the
MT2834ZPX card into your ISA or EISA bus host computer.
Table 2-1. Configuration and Installation Procedure
Step Procedure
1 Make sure your computer and any peripheral equipment
connected to it, are turned off. Failure to do so may damage both
your modem and your PC. The card may be installed in any 286-,
386- , 486- or Pentium based computer with an ISA or EISA bus
architecture.
2 Remove the cover of your computer as instructed in your
computer’s documentation.
3 Locate the unused slot(s) which you will be using for your modem
card, and remove the slot cover(s) per the instructions in your
computer’s documentation.
4 Figure 2-1 illustrates the default COM port and IRQ value setting
for this card (COM2/IRQ3). If your application requires an
alternate setting, remove the berg jumpers from the COM2/IRQ3
position and place them in a position that supports your
application. The MT2834ZPX can be configured for either a
COM1, COM2, COM3 or COM4 communication port; with a
selection of five IRQ values for each port. By this means, the user
may select an identical COM port because of the expanded IRQ
value selection option (e.g., the MT2834ZPX has a factory default
of COM2/IRQ3...a Mouse device can also be configured at COM2
but at IRQ4...a Printer device configured at COM2 but at IRQ7...).
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