Multitech MultiModem MT2834ZPX Bedienungsanleitung

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.

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

Technical Writer: [email protected]

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

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.

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.

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.

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

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

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.

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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