Multitech MT2834BA Bedienungsanleitung

MT2834BA/MT2834BL Series

Intelligent Data/Fax Modems

User Guide

S000300B Revision B

MultiModemIIModels:

MT2834BA,MT2834BAI,MT2834BL,MT2834BLI

This publication may not be reproduced, in whole or in part, without prior expressed written permission

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

Rev. Date Description

A04/23/03 Initial release of this combination.

Replaces MT2834BA/MT2834BAI User Guide 88312001 Rev. B and

MT2834BL/MT2834BLI User Guide 88312100 Rev. A.

IncludedProductUpdate82076600(MT2834BLATcommands$LL).

B01/20/04 Corrected4-wireLeasedLinediagramsinAppendixE. WEEEStatementadded.

Patents

This device is covered by one or more of the following patents: 6,031,867; 6,012,113; 6,009,082;

5,905,794; 5,864,560; 5,815,567; 5,815,503; 5,812,534; 5,809,068; 5,790,532; 5,764,628; 5,764,627;

5,754,589; 5,724,356; 5,673,268; 5,673,257; 5,644,594; 5,628,030; 5,619,508; 5,617,423; 5,600,649;

5,592,586; 5,577,041; 5,574,725; 5,559,793; 5,546,448; 5,546,395; 5,535,204; 5,500,859; 5,471,470;

5,463,616; 5,453,986; 5,452,289; 5,450,425; D353,598; 5,355,365; 5,309,562; 5,301,274. Other

patents pending.

Trademarks

Trademarks of Multi-Tech Systems, Inc. are as follows: MultiModemII, Multi-Tech and the Multi-Tech logo.

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

trademarks of their respective companies.

Technical Support

Country By Email By Phone

France: [email protected] +(33) 1-64 61 09 81

India: [email protected] +91 (124) 6340778

U.K.: [email protected] +(44) 118 959 7774

U.S and Canada: [email protected] (800) 972-2439

Rest of the World: [email protected] +(763) 717-5863

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 MT2834BA/BL 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........................................................................................................................ 14

2.2.2 Installation Procedure ............................................................................................................... 14

2.3 Installing PhoneTools, the Data Communications Software ............................................................ 16

2.4 Is Your Modem Ready for Use? ...................................................................................................... 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

3.3 PC Initialization Strings ................................................................................................................... 18

3.3.1 Changing Default Parameters................................................................................................... 19

3.3.2 Other Parameters ..................................................................................................................... 19

3.4 Configuring Software for Your Computer......................................................................................... 19

3.5 Modem Basics................................................................................................................................. 20

3.5.1 Simple Operations .................................................................................................................... 20

3.6 TheAnswer/Originate - Voice/DataToggle Switch .......................................................................... 20

Chapter 4 - Manual Dial and Automatic Answer ............................................................ 21

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

4.2 Dialing/On-Line/Answering .............................................................................................................. 22

4.3 Automatic Leased Line Restoral Operation.....................................................................................23

4.4 Manual Dial Backup Call Termination .............................................................................................. 23

4.5 Dial Backup and Leased Line Restoral ........................................................................................... 23

4.6 Dial-Up Operation............................................................................................................................ 24

4.7 Manual Call Origination ................................................................................................................... 24

4.8 AutomaticAnswering....................................................................................................................... 25

4.9 ManualAnswering ........................................................................................................................... 25

4.10 Handshaking Details ....................................................................................................................... 26

4.11 CallTermination............................................................................................................................... 26

Chapter 5 - Command Mode............................................................................................ 27

5.1 Introduction...................................................................................................................................... 28

5.1.1 AT Command Editing ................................................................................................................ 28

5.1.2 Functional Modes...................................................................................................................... 28

5.2 Summary of AT Commands............................................................................................................ 29

5.3 Result Codes................................................................................................................................... 32

5.4 Dialing Commands .......................................................................................................................... 33

5.4.1 DialingAction Commands......................................................................................................... 33

5.4.2 Dial Modifier Commands........................................................................................................... 34

5.4.3 Phone Number Memory Commands......................................................................................... 37

5.4.4 Configuration and Default Storage Commands ........................................................................ 38

5.4.5 Command Response (Result Code) Commands...................................................................... 40

5.4.6 Phone Line Conditioning Commands........................................................................................ 42

5.4.7 RS-232C Interface Control Commands .................................................................................... 44

5.4.8 Error Correction Commands ..................................................................................................... 46

5.4.9 Flow Control Commands .......................................................................................................... 49

5.4.10 Compression, Error Correction, Flow Control, Pass-Through and Pacing Commands ............ 52

5.4.11 Speed Conversion Commands .................................................................................................53

5.4.12 ImmediateAction Commands ................................................................................................... 55

5.4.13 Line Probe Commands ............................................................................................................. 57

Chapter 6 - S-Registers.................................................................................................... 58

6.1 Introduction...................................................................................................................................... 59

6.2 Reading andAssigning S-Register Values ......................................................................................66

6.2.1 Examples ofAssigning Values .................................................................................................. 66

6.2.2 Examples of Reading Values .................................................................................................... 66

6.3 AT Command and S-Register Summary ......................................................................................... 67

Chapter 7 - Callback Security and Remote Configuration............................................ 68

7.1 Introduction...................................................................................................................................... 69

7.2 Callback Feature Description .......................................................................................................... 69

7.3 Remote Configuration Description................................................................................................... 70

7.3.1 Initial Setup Procedures for Callback and Remote Configuration. ............................................ 70

7.3.2 Remote Configuration Procedures............................................................................................73

7.4 Remote Configuration and Callback SecurityAT Commands ......................................................... 74

7.5 Remote Configuration/Callback Security S-Registers..................................................................... 75

Chapter 8 - DIP-Switch Settings...................................................................................... 76

8.1 Introduction...................................................................................................................................... 77

8.2 DIP-Switch Option Settings ............................................................................................................. 78

8.3 Speaker Volume Control ................................................................................................................. 83

8.4 Recording Option Configurations .................................................................................................... 84

Chapter 9 - Warranty, Service and Tech Support .......................................................... 86

9.1 Introduction...................................................................................................................................... 87

9.2 Multi-Tech Systems, Inc. Warranty & Repairs Policies.................................................................... 87

8.3 Online Warranty Registration .......................................................................................................... 88

9.4 Replacement Parts.......................................................................................................................... 89

9.5 Technical Support............................................................................................................................ 89

9.6 Internet Sites ................................................................................................................................... 89

Appendixes....................................................................................................................... 90

AppendixA - Upgrading Your Modem’s Firmware........................................................................................ 91

Appendix B - Troubleshooting ...................................................................................................................... 94

Appendix C - AT Command Summary ......................................................................................................... 99

Appendix D - V.25bis Operation ................................................................................................................... 107

Appendix E - MultiModemBA Cables............................................................................................................ 113

AppendixF - RegulatoryInformation............................................................................................................. 114

Index................................................................................................................................ 117

Chapter 1 - Introduction and Description

Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 6

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/BL series modem, from Multi-

Tech Systems.

Your MultiModem provides data communication at the following rates:

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

The MultiModem also 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

A summary of the information contained in each chapter and appendix 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 8 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 - Manual Dial and Automatic Answer

Chapter 4 covers some modem operations, but delays discussion on Command Mode operation

until Chapter 5. Automatic Leased Line Restoration, Dial backup, Manual Dial Mode, and Answer

Mode operation are covered in detail, as well as the handshaking procedures employed between

two modems in an auto-answer application.

Chapter 5 - AT Command Mode Operation

Chapter 5 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 1 - Introduction and Description

Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 7

Chapter 6 - S-Registers

Chapter 6 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 7 - Callback and Remote Configuration

Chapter 7 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 8 - DIP-Switches

Chapter 8 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 9 - Warranty, Service & Technical Support

Chapter 9 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/BL Series modem connections can be made on Public Switched Telephone

Networks (PSTNs) and/or point-to-point 2-wire or 4-wire (BL only) 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.

Chapter 1 - Introduction and Description

Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 8

1.3.1 MT2834BA/BL Series Features

Your MT2834BA/BL 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 major application for the MT2834BL is in 4-wire leased line networks with the addition of dial

backup capability. With this capability, the dial-up feature saves any down time if the leased line fails.

Since the MT2834BL operates according to ITU V.34 modulation, it can operate full-duplex over two

wires, so that the dial backup mode performs the same throughput as the leased line.

The MT2834BA/BL 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

Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 9

1.5 Technical Specifications

Your data/fax modem meets the specifications listed below:

Tradename MultiModemIITM

Model Numbers MT2834BA, MT2834BAI, MT2834BL, MT2834BLI

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.42bis, V.42, V.34, AT&T V.32terbo, ITU V.32bis, V.32, V.21*,

V.22bis, V.22, V.23*,V.25bis, *Bell 212A and 103/113, 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.42bis, (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 or 4-wire (BL only)

leased lines; automatic or manual dialing, automatic or manual

answer; For BL only: auto dial backup on separate lines in leased-

line operation

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

Chapter 1 - Introduction and Description

Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 10

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 (three for BL) 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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