Multitech BA-Series Manuale utente

BA-Series

Intelligent Data/Fax Modem

User Guide

88312001 Revision B

MultiModemIIModels:

MT2834BA/MT2834BAI

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

A (06/01/99) Manual revised. Manual reformatted for electronic distribution. All

pages remain at Revision A.

B(08/15/02) Replace Trio with PhoneTools; change phone numbers; add patents;

revised safety warnings

Trademarks of Multi-Tech Systems, Inc. are as follows:

MultiModemII, Multi-Tech and the Multi-Tech logo.

MNP, Microcom Network Protocol is a trademark of Microcom Inc.

AS/400 and System3x is a trademark of IBM.

Macintosh is a trademark of Apple Computer Inc.

Unix is a trademark of X/Open Co. Ltd.

Windows® is a registered trademarks of Microsoft

All other brands and product names mentioned in this publication are trademarks or registered

trademarks of their respective companies.

Multi-Tech Systems, Inc.

2205 Woodale Drive

Mounds View, Minnesota 55112 U.S.A.

(763) 785-3500 or (800) 328-9717

U. S. Fax 763-785-9874

Technical Support (800) 972-2439

Internet Address: http://www.multitech.com

Contents

Chapter 1 - Introduction and Description......................................................................... 5

1.1 Introduction...................................................................................................................................... 6

1.2 How To Use This Manual................................................................................................................. 6

1.3 Modem Features ............................................................................................................................. 7

1.3.1 2834 Series Features................................................................................................................ 8

1.4 Fax Features ................................................................................................................................... 8

1.5 Technical Specifications .................................................................................................................. 9

1.6 Power .............................................................................................................................................. 10

1.7 Modem LED Indicators .................................................................................................................... 11

1.8 Controls on PC Board ..................................................................................................................... 12

Chapter 2 - Installation and Connection......................................................................... 13

2.1 What is in Your Modem Package? .................................................................................................. 14

2.2 Installation ....................................................................................................................................... 14

2.2.1 Safety Warnings ........................................................................................................................ 15

2.2.2 Installation Procedure ............................................................................................................... 15

2.3 Installing Data Communications Software ....................................................................................... 16

Chapter 3 - Software Configuration and Modem Basics .............................................. 17

3.1 Introduction...................................................................................................................................... 18

3.2 Configuring Your Software............................................................................................................... 18

3.2.1 ConfiguringSoftware for Your Modem ....................................................................................... 18

3.4 PC Initialization Strings ................................................................................................................... 18

3.4.1 Changing Default Parameters................................................................................................... 19

3.4.2 Other Parameters ..................................................................................................................... 19

3.5 Configuring Software for Your Computer ......................................................................................... 19

3.5.1 Configuring Software for the Remote System........................................................................... 19

3.5.2 Terminal Emulation ................................................................................................................... 20

3.5.3 File Transfer Protocols .............................................................................................................. 20

Chapter 4 - Command Mode............................................................................................ 21

4.1 Introduction...................................................................................................................................... 22

4.1.1 AT Command Editing ................................................................................................................ 22

4.1.2 Functional Modes...................................................................................................................... 22

4.2 Summary of AT Commands............................................................................................................. 23

4.3 Result Codes ................................................................................................................................... 26

4.4 Dialing Commands .......................................................................................................................... 27

4.4.1 Dialing Action Commands ......................................................................................................... 27

4.4.2 Dial Modifier Commands........................................................................................................... 28

4.4.3 Phone Number Memory Commands......................................................................................... 30

4.4.4 Configuration and Default Storage Commands ........................................................................ 31

4.4.5 Command Response (Result Code) Commands ...................................................................... 33

4.4.6 Phone Line Conditioning Commands........................................................................................ 34

4.4.7 RS-232C Interface Control Commands .................................................................................... 36

4.4.8 Error Correction Commands ..................................................................................................... 38

4.4.9 Flow Control Commands .......................................................................................................... 40

4.4.10 Compression, Error Correction, Flow Control, Pass-Through and Pacing Commands ............ 43

4.4.11 Speed Conversion Commands ................................................................................................. 44

4.4.12 Immediate Action Commands ................................................................................................... 46

4.4.13 Line Probe Commands ............................................................................................................. 48

Chapter 5 - S-Registers.................................................................................................... 49

5.1 Introduction...................................................................................................................................... 50

5.2 Reading and Assigning S-Register Values ......................................................................................55

5.2.1 Examples of Assigning Values .................................................................................................. 56

5.2.2 Examples of Reading Values .................................................................................................... 56

5.3 AT Command and S-Register Summary ......................................................................................... 56

Chapter 6 - Callback Security and

Remote Configuration...................................................................................................... 57

6.1 Introduction...................................................................................................................................... 58

6.2 Callback Feature Description .......................................................................................................... 58

6.3 Remote Configuration Description................................................................................................... 58

6.3.1 Initial Setup Procedures for Callback and Remote Configuration. ............................................ 58

6.3.2 Remote Configuration Procedures ............................................................................................61

6.4 Remote Configuration and Callback Security AT Commands ......................................................... 62

6.5 Remote Configuration/Callback Security S-Registers ..................................................................... 63

Chapter 7 - DIP-Switch Settings...................................................................................... 65

7.1 Introduction...................................................................................................................................... 66

7.2 DIP-Switch Option Settings ............................................................................................................. 66

7.3 Speaker Volume Control ................................................................................................................. 71

7.4 Recording Option Configurations .................................................................................................... 72

Chapter 8 - Warranty, Service and Tech Support .......................................................... 74

8.1 Introduction...................................................................................................................................... 75

8.2 Multi-Tech Systems, Inc. Warranty & Repairs Policies .................................................................... 75

8.3 Online Warranty Registration .......................................................................................................... 76

8.4 Replacement Parts .......................................................................................................................... 77

8.5 Technical Support ............................................................................................................................ 77

8.6 Internet Sites ................................................................................................................................... 77

Appendixes....................................................................................................................... 78

Appendix A -- Upgrading Your Modem’s Firmware....................................................................................... 79

Appendix B - Troubleshooting ...................................................................................................................... 82

Apendix C - AT Command Summary ........................................................................................................... 87

Appendix D - V.25bis Operation ................................................................................................................... 96

Appendix E - MultiModemBA Cables ........................................................................................................... 102

Appendix F - Regulatory Information............................................................................................................ 103

Index.................................................................................106

Chapter 1 - Introduction and Description

MultiModemBA User Guide

1.1 Introduction

Welcome to the world of data communications. You have acquired one of the finest intelligent

desktop data/fax modems available today, the MultiModemII BA series modem, from Multi-Tech

Systems. This User Guide covers various models within the BA series, and unless otherwise noted,

all content should be considered relevant to all models.

Your MultiModem provides data communication at the following rates:

33,600 - 14,400 bps (Enhanced V.34 / V.32bis)

The MultiModem also provides other prevalent data communications standards and includes dial

backup with automatic lease line restoration, adaptive protocol enhancing used in typical Unix® batch

file transfers and support for IBM's AS/400TM and WindowsTM environments.

1.2 How To Use This Manual

The information contained in each chapter and appendix is as follows:

Chapter 1 - Introduction and Description

This chapter begins with a short introduction, followed by a guide (which you are now reading) to the

use of this manual. There is a discussion about what components you can expect in your modem

package. We then provide a more detailed description of the modem, including the modem’s

technical specifications. Chapter 1 includes sections covering power, LED indicators and a brief

summary of PC board controls. (Chapter 9 covers switch settings more thoroughly.)

Chapter 2 - Installation and Connection

Chapter 2 covers the procedure for connecting the modem to your computer and to the phone line.

Details are given, supported by illustrations on the modem's back panel connections as a guide to

install your modem to the point of operation. In addition, this chapter describes the installation of

PhoneTools, the communications software included with your modem.

Chapter 3 - Software Configuration and Modem Basics

Chapter 3 documents communication software configuration recommended specifically for the

MultiModem. Other issues covered include setting up initialization strings, changing default

parameters, configuring software for the remote system and file transfer protocols.

Chapter 4 - AT Command Mode Operation

Chapter 4 may be the most important chapter of this manual. It begins with an introduction and

discussion on Command Mode fundamentals. A flow chart is provided to illustrate Command Mode

and On-Line Mode operation and the methods used in each mode. Next, there is a summary of the

modem’s commands and responses. We then go into a detailed explanation of each modem

command, providing examples where applicable.

Chapter 5 - S-Registers

Chapter 5 covers the modem's S-Registers, which enable the user to establish, read, and modify

various modem options. All of the S-Registers are charted and explained, followed by instructions on

accessing the S-Registers and reading or changing their values.

Chapter 1 - Introduction and Description

Chapter 6 - Callback and Remote Configuration

Chapter 6 documents instructions on how to operate the modem's Callback and Remote

Configuration features; and the usage of LOGIN Passwords, Set-Up Passwords and Remote Escape

Characters as network management tools.

Chapter 7 - DIP-Switches

Chapter 7 covers the modem’s printed-circuit board options. Sixteen DIP-Switch settings and the

modem's speaker volume control are explained in detail, including all default settings.

Chapter 8- Warranty, Service & Technical Support

Chapter 8 provides statements on your five-year warranty, instructions for getting modems serviced

at the factory and the procedure for downloading firmware upgrades via FlashROM.

Appendixes

There are also several appendices at the end of this manual, most of which repeat information

contained in the chapters, but in a more condensed form. These appendices can be used as a quick

reference.

Appendix A - Upgrading Your Modem’s Firmware

Appendix B - Troubleshooting

Appendix C - AT Command Summary

Appendix D - V.25bis Operation

Appendix E - Cabling Diagrams

Appendix F - Regulatory Information

1.3 Modem Features

The MultiModem BA Series modem connections can be made on Public Switched Telephone

Networks (

PSTNs

) and/or point-to-point 2-wire telephone type circuits.

Your modem 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 Callback Security to protect networks from unauthorized use, and to

manage phone line costs. By using the modem’s phone number and password directory, a host site

can, upon receipt of a call, callback to a remote site at a predetermined number.

Remote Configuration permits you to assist users at remote sites, saving you the time and trouble of

site visits and preventing misinterpretation of configuration instructions.

MultiModemBA User Guide

1.3.1 2834 Series Features

Your MT2834BA modem meets the proposed

Enhanced V.34

ITU standard for data signalling rates

as high as 33.6/31.2K bps in full duplex mode.

Enhanced

V.34 is an extension of V.32/V.32bis/V34

standards, and supports and is compatible with those 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).

The MT2834BA features ITU V.25bis standard for synchronous dialing, ITU 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.)

1.4 Fax Features

Your modem meets the ITU 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 ITU’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 modem 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.

Chapter 1 - Introduction and Description

1.5 Technical Specifications

Your data/fax modem meets the specifications listed below:

Tradename MultiModemIITM

Model Numbers MT2834BA, MT2834BAI

Data Rates (modem) 33,600, 31,200, 28,800, 26,400, 24,000, 21,600, 19,200, 16,800,

14,400, 12,000, 9600, 7200, 4800, 2400, 1200, 0-300 bps

Data Rates (fax) 14,400, 9600, 7200, 4800 bps

Data Format Serial, binary, asynchronous at 0-300, 1200, 2400, 4800, 7200,

9600, 12,000, 14,400, 16,800, 19,200, 21,600, 24,000, 26,400,

28,800, 31,200, 33,600 bps; synchronous at 1200, 2400, 4800,

7200, 9600, 12,000, 14,400, 16,800, 19,200, 21,600, 24,000, 26,400,

28,800, 31,200, 33,600 bps

Compatibility ITU V.42

bis

, V.42, Pending ITU Enhanced V.34 approval, ITU V.34,

AT&T V.32

terbo

, ITU V.32

bis

, V.32, V.21*, V.22

bis

, V.22,

V.23*,V.25

bis

, *Bell 212A and 103/113, ITU V.17, Group 3 T.4, T.30

and EIA TR-29 Class 2 (*Bell 212A and 103/113 domestic models

only; *V.21/V.23 Int'l models only)

Error Correction V.42 (LAP-M or MNP 3 & 4) error correction

Data Compression V.42

bis

, (4:1 throughput) or MNP 5 (2:1 throughput) data

compression

Speed Conversion Serial port data rates adjustable to 300, 1200, 2400, 4800, 9600,

19,200, 38,400, 57,600 and 115,200 bps

Flow Control Options Xon/Xoff, Hardware RTS/CTS, ENQ/ACK, Unix-to-Unix Copy

Protocol (UUCP) "Spoofing"

Mode of Operation Full duplex over both dial-up lines and 2-wire leased lines; automatic

or manual dialing, automatic or manual answer

Intelligent Features Fully “AT command”compatible, microprocessor controlled remote

configuration, EIA extended Automode, adaptive line probing,

automatic symbol rate and carrier frequency during start-up, retrain

and rate renegotiation, autodial, redial, repeat dial, dial linking, pulse

or tone dial, dial tone detection, dial pauses, call status display, auto-

parity and data rate selection, keyboard-controlled modem options,

nonvolatile memory and on-screen displays for modem option

parameters and up to ten telephone numbers/command lines of up

to 60 digits each, help menus

Command Buffer 60 characters

Modulation Trellis Coded Modulation (TCM) at 33,600, 31,200, 28,800, 26,400,

24,000, 21,600, 19,200, 16,800, 14,400, 12,000 and 9600 bps,

Quadrature Amplitude Modulation (QAM) at 9600 (non-trellis), 4800

and 2400 bps, PSK at 1200 bps, FSK at 300 bps

MultiModemBA User Guide

Fax Modulations V.21CH2 FSK at 300 bps, V.27ter DPSK at 4800 and 2400 bps,

V.29 QAM at 9600 and 7200 bps, V.17 TCM at 14400, 12000, 9600,

and 7200 bps

Transmit Level -11dBm (dial-up), -9 or -15 dBm (leased-line); dBm level selectable

with DIP-Switch #3 in leased line setting

Frequency Stability ±0.01%

Connectors One DB-25 RS-232C connector; two RJ11 for phone line/telephone

set; power.

Diagnostics Power-on Self Test, Local Analog Loop, Local Digital Loop, Remote

Digital Loop, Back-to-Back Test.

Indicators LEDs for Transmit Data, Receive Data, Carrier Detect, Speed

Indicators, Off Hook, Terminal Ready, Error Correction, Fax, and

Error

Controls Toggle switches for Voice/Data with Originate or Answer, Power On/

Off; and DIP Switches for various modem options.

Speaker Speaker for call progress monitoring

Operating Temperature 0°to 50°C (32°to 120°F)

Power Requirements 115 Volts AC, 60Hz, 0.3amp (2-prong outlet-mounted transformer)

240V/50Hz optional (International).

Dimensions 6.150" x 9.00" x 1.375"

15.6 cm x 22.9 cm x 3.5 cm

Weight 1.6 pounds/0.72 Kg (without transformer)

2.6 pounds/1.18Kg (with transformer)

Limited Warranty Five Years

1.6 Power

Power is supplied through an AC power transformer terminated with a standard two-prong plug. The

transformer supplies low voltage AC to the modem, and plugs into any conventional 115 volt AC, 60

Hz, two-prong power outlet (240 volts AC, 50Hz, .3 Amp for International modems). The power

transformer supplied with the modem is the only one that should be used. Use of any other

transformer could cause damage to the modem. A Power On/Off switch is located on the back of the

modem.

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