Multitech MT1932ZDX Quick Reference Manual

Multitech MT1932ZDX Quick Reference Manual

Multi-tech multimodem mt1932zdx modems: quick start
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  • Page 1 Quick Reference Guide...
  • Page 2: Quick Reference Guide

    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 organiza- tion of such revisions or changes.
  • Page 3: Table Of Contents

    Power-On Test ... 12 Step 3: Install the Modem in Windows 95 ... 13 Adding the MT1932ZDX to Windows 95 ... 13 Removing Your Old Modem from Windows 95 ... 14 Step 4: Install and Configure Your Software ... 15 Third Party Communications Software ...
  • Page 4 Telephone Line ... 23 Communications Software ... 24 Connections ... 24 Connecting to the Computer (“RS232”) ... 25 Connecting to the Telephone Line (“LINE”) ... 25 Connecting a Telephone Set (“PHONE”) ... 25 Connecting to Power (“POWER”) ... 26 Surge Protectors and Lightning ... 26 Front Panel ...
  • Page 5 On-line Warranty Registration ... 77 Service ... 77 Tech Support ... 77 The Multi-Tech BBS ... 78 Logging on to the Multi-Tech BBS ... 78 Downloading a File ... 78 Reading a Message ... 80 Leaving a Message ... 80 Bulletins ...
  • Page 6: Chapter 1 - Introduction

    MT1932ZDX Quick Reference Guide Chapter 1 - Introduction Congratulations Congratulations on your purchase of the MT1932ZDX fax modem, one of the finest fax modems available today from one of America’s oldest and most respected modem manufacturers. The MT1932ZDX complies with the international V.32terbo standard for a top speed of 19,200 bits per...
  • Page 7: What Is In My Modem Package

    • A brochure with a warranty registration card If any of these items are missing, please contact Multi-Tech Systems or your dealer/distributor (see Appendix C for information on contacting Multi- Tech via telephone, fax, bulletin board service, CompuServe, and the Internet).
  • Page 8: Chapter 2 - Quick Start

    Chapter 2 - Quick Start Introduction We know you’re eager to get your Multi-Tech MultiModemZDX fax modem up and running, so we’ll skip the features for now, and show you step-by- step how to set it up, check it out, and make your first calls.
  • Page 9: Safety Warnings

    Safety Warnings • Never install telephone wiring during a lightning storm. • Never install a telephone jack in a wet location 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.
  • Page 10: Step 2: Connect The Modem To Your System

    MT1932ZDX Quick Reference Guide Step 2: Connect the Modem to Your System Placing the MT1932ZDX in a convenient location, connect it to your computer’s serial port, to the telephone line, to AC power, and, optionally, to your telephone (the ZDXK and ZDXI models do not have a telephone jack).
  • Page 11: Rs232 Connection

    COM1 or COM2. u LINE Connection Plug one end of the phone cable into the MT1932ZDX’s LINE jack, and the other end into a phone line wall jack. Note: The ZDX's LINE jack is not interchangeable with the PHONE jack.
  • Page 12: Power-On Test

    MT1932ZDX Quick Reference Guide u Power-On Test Test the modem by turning it on (a power on/off switch is located on the right side). When you apply power, the modem performs a diagnostic self- test, indicated by the speed indicators flashing in sequence for a second or two, after which the 28 indicator should light.
  • Page 13: Step 3: Install The Modem In Windows 95

    Commands” in Chapter 5, “Troubleshooting Your Fax Modem.” If Windows identifies your modem correctly as a MultiTech MultiModem or a MultiModem MT1932ZDX, click Next to install the modem. After the modem is installed, click Finish to exit. If Windows cannot identify your modem (for instance, if it identifies your modem as a “Standard Modem”), click Change.
  • Page 14: Removing Your Old Modem From Windows 95

    Although you can change the application connection descriptions one at a time, it is easier to force Windows 95 applications to use the MT1932ZDX by removing the old modem from Windows. Click the Start button, point to Settings, and click Control Panel.
  • Page 15: Step 4: Install And Configure Your Software

    Step 4: Install and Configure Your Software You must have communications software installed in your computer to use the MT1932ZDX. If you wish to use communications software that is already installed, you should reconfigure it for the MT1932ZDX; otherwise, install the data and fax communications software provided with the MT1932ZDX (see software documentation for installation instructions).
  • Page 16 MT1932ZDX Quick Reference Guide Ideally, if you use data compression, you should set your serial port baud rate to four times the modem’s maximum transmission speed or faster; however, not all serial ports can handle speeds that high. Set the serial port baud rate to 115,200 bps if your computer has a high speed serial port with a 16550AFN UART or equivalent and Windows 95;...
  • Page 17: Step 5: Call The Multi-Tech Bbs

    Step 5: Call the Multi-Tech BBS Test the modem’s data functions by calling the Multi-Tech Bulletin Board System (BBS) and downloading ZDXHELP.HLP, which contains the full MultiModemZDX Owner’s Manual in convenient Windows Help format. Windows 95 HyperTerminal Click Start; then choose Programs, Accessories, and HyperTerminal.
  • Page 18: Windows Terminal

    MT1932ZDX Quick Reference Guide 11. In the Main Menu, type F and press RETURN to access the Files Menu, then type D and press RETURN to download. 12. At the prompt, type zdxhelp.hlp, then press RETURN twice. 13. Answer Y or N to the automatic logoff question.
  • Page 19 When the BBS welcome screen appears, type your first name, last name, and password following the prompts. If you are a first-time caller, the BBS asks if your name is spelled correctly. If you answer Y, a questionnaire appears. You must complete the questionnaire to use the BBS on your first call.
  • Page 20: Running Multimodemzdx Help

    MT1932ZDX Quick Reference Guide Running MultiModemZDX Help Windows 95 Open the folder into which you downloaded the ZDXHELP.HLP file. Move the file to a permanent location on your hard drive. Double-click on the Zdxhelp icon to run MultiModemZDX Help. Press F1 for help in using MultiModemZDX Help.
  • Page 21: Chapter 3 - Features

    World Wide Web. You can also use the MT1932ZDX to dial into bulletin board services (BBS’s). BBS’s offer some of the services provided by online information services—usually e-mail, public message areas, and file transfers.
  • Page 22: Features

    MT1932ZDX Quick Reference Guide And of course, you can use your MT1932ZDX to send and receive faxes anywhere in the world, enabling you to communicate quickly with businesses and other organizations that do not maintain BBS’s. Features The MT1932ZDX automatically adjusts to line conditions and to the...
  • Page 23: Required Equipment

    FCC requires that the cable be shielded. u Telephone Line You must have a telephone line with a jack (connector) that accepts the cable that comes with the MT1932ZDX. If you do not have a telephone jack near your computer, you should install one before proceeding.
  • Page 24: Communications Software

    Microsoft Windows 3.1 or later to run this software. If you require software for DOS or for the Macintosh operating system, please contact Multi-Tech Sales at (612) 785-3500 or 1-800-328-9717, or by fax at (612) 785-9874. The MT1932ZDX is also compatible with other datacomm and fax programs.
  • Page 25: Connecting To The Computer ("Rs232")

    DB connectors. u Connecting to the Telephone Line (“LINE”) Plug one end of the cable provided with the MT1932ZDX into the telephone jack in your home or office. Plug the other end into the LINE jack on the MT1932ZDX.
  • Page 26: Connecting To Power ("Power")

    MT1932ZDX Quick Reference Guide u Connecting to Power (“POWER”) Low voltage DC power is supplied to the MT1932ZDX through a modular power supply included with the modem. Plug the power supply module into a convenient AC power outlet or surge protector. Plug the connector on the other end of the power cord into the POWER jack on the modem.
  • Page 27: Front Panel

    Front Panel Figure 3-2. ZDX front panel The MT1932ZDX has ten LED indicators on the front panel that indicate status, configuration, and activity: Transmit Data. The TD LED lights when the modem is transmitting data to another modem. The state of the LED matches the TD circuit on pin 2 of the RS-232C/V.24 interface.
  • Page 28 Fax. The FX LED lights when the modem is in fax mode. Note: When you turn on the MT1932ZDX, the speed lights flash briefly as the modem does a self-test, then the LED for the default modem baud rate lights. The default rate for the MT1932ZDX is 19,200 bps unless you select and store another baud rate.
  • Page 29: Chapter 4 - At Commands, S-Registers And Result Codes

    MultiModemZDX Owner's Manual or download the ASCII text or Windows Help versions from the Multi-Tech BBS (see “Step 5: Call the Multi-Tech BBS” in Chapter 2, or the reader response form at the end of this guide).
  • Page 30 MT1932ZDX Quick Reference Guide Command: Values: Description: Redial last number until answered (10 redials in &A n Command: Values: Default: Description: &A0 Disables answerback. &A1 Command: $A n Values: Default: Description: Discard data received during establishment of a Command: #A n...
  • Page 31 Chapter 4 - AT Commands, S-Registers and Result Codes Command: Answer Tone (ZDXI modems only) Values: n = 0 or 1 Default: Description: Select ITU-T V.21. V.22, and V.23 answer tones. Select Bell answer tones, including Bell 103. &BS n Maximum Reliable Block Size Command: n = 0 or 1 Values:...
  • Page 32 MT1932ZDX Quick Reference Guide Command: D s N d Store Telephone Number Values: Default: none Description: To store, enter D followed by dial string s , then N Command: &D n Values: Default: 2 (ZDX, ZDXI, ZDXK) Description: &D0 Modem ignores DTR signal.
  • Page 33 Chapter 4 - AT Commands, S-Registers and Result Codes Command: >DT n DTMF Detection Values: n = 0 or 1 Default: Description: >DT0 The modem will not detect DTMF tones. >DT1 The modem will detect and report DTMF tones when it is off-hook. Command: Echo Command Mode Characters Values:...
  • Page 34 MT1932ZDX Quick Reference Guide Command: &E n Values: Default: Description: &E8 Ignore ENQ/ACK pacing characters. &E9 &E n Command: Values: Default: Description: &E10 Disable non-error correction mode flow control. &E11 Enable non-error correction mode flow control. Command: &E n Values:...
  • Page 35 Chapter 4 - AT Commands, S-Registers and Result Codes Command: %E n Escape Sequence Options Values: n = 0–5 Defaults: 1 and 4 Description: Modem won’t escape. +++AT<CR> method. <BREAK>AT<CR> method. Both +++AT<CR> and <BREAK>AT<CR> methods. No OK response to +++AT<CR>. OK response to +++AT<CR>.
  • Page 36 MT1932ZDX Quick Reference Guide Command: #F n Values: Default: Description: No fallback when on line. &G n Command: Values: Default: Description: &G0 Turn off ITU-T guard tones. &G1 Turn on ITU-T 550 Hz guard tone. &G2 Turn on ITU-T 1800 Hz guard tone.
  • Page 37 Display firmware version number. Display modem description. #I x Command: Enter Login Password x = password (6–10 characters) Values: Default: MULTI-TECH Description: Enters the remote configuration login password. Note: entry must be all CAPS Command: #I= x Store Login Password Values: x = password (6–10 characters)
  • Page 38 MT1932ZDX Quick Reference Guide Command: Values: Default: Description: Speaker always off. Command: $MB n Modem Baud Rate Values: Default: 19200 Description: $MB75 $MB300 $MB1200 $MB2400 $MB4800 $MB7200 $MB9600 $MB14400 $MB16800 $MB19200 Command: Values: Default: None Description: Dial stored telephone number d.
  • Page 39 Disable result codes (quiet). Enable no-response answer mode, which leaves originate mode intelligent while turning off answer mode responses and echo. Command: &Q n Multi-Tech or Standard Result Codes Values: n = 0 or 1 Default: Description: &Q0 Multi-Tech responses with modifiers.
  • Page 40 MT1932ZDX Quick Reference Guide Command: Values: Default: Description: &R n Command: Values: Default: Description: &R0 Let CTS state follow RTS state when on line. &R1 &R2 &RD n Square Wave Ring Detect Command: Values: Default: 1 (ZDX) Description: &RD0 Modem detects only sine wave rings.
  • Page 41 Chapter 4 - AT Commands, S-Registers and Result Codes Command: S r = n Values: Default: Description: S r ? Command: Values: Default: Description: Command: &S n Values: Default: Description: &S0 &S1 &S2 &SF n DSR/CD Interaction Control Command: Values: Default: Description: &SF0 Select DSR to follow CD.
  • Page 42 MT1932ZDX Quick Reference Guide Command: $SB n Serial Port Baud Rate Values: Default: Description: $SB300 $SB1200 $SB2400 $SB4800 $SB9600 $SB19200 $SB38400 $SB57600 $SB115200 Note: Baud adjust must be off ($BA0) to enable fixed baud rate. #S y Command: Values: Default:...
  • Page 43 Chapter 4 - AT Commands, S-Registers and Result Codes Command: &T n Respond to Remote Digital Loopback Signal Values: n = 4 or 5 Default: Description: &T4 Enable response to remote digital loopback signal. &T5 Disable response to remote digital loopback signal.
  • Page 44 MT1932ZDX Quick Reference Guide Command: &W n Values: Default: Description: &W0 &W1 Command: Values: Default: Description: Command: #X n Values: Default: Description: Store Configuration n = 0 or 1 Store current settings in NVRAM; load them at power-on or following the ATZ command instead of loading the factory defaults from ROM.
  • Page 45 Chapter 4 - AT Commands, S-Registers and Result Codes Command: Long Space Disconnect Values: n = 0 or 1 Default: Description: Disable sending or responding to long space break signal on disconnect. Enable sending or responding to long space break signal on disconnect. (Both modems must have Y1 set.) Command: Modem Reset...
  • Page 46 MT1932ZDX Quick Reference Guide Command: Values: Description: Placed in dial command, exclamation point Command: Values: Description: Placed in dial command, @ causes modem to Command: Values: Description: Placed in dial command, causes modem to wait Command: %%%AT<CR> Remote Configuration Escape Sequence...
  • Page 47 Chapter 4 - AT Commands, S-Registers and Result Codes Command: <BREAK>AT<CR> Escape Sequence Values: Description: Alternate escape method. Puts modem in com- mand mode while remaining on line. Send a <BREAK> signal followed by AT, up to sixty command characters, and a RETURN. You must set the modem to %E2 or %E3 before you can use this escape method.
  • Page 48: S-Registers

    MT1932ZDX Quick Reference Guide S-Registers Certain modem values, or parameters, are stored in memory locations called S-registers. Use the S command to read or to alter the contents of S-registers (see previous section). Register Unit 1 ring 1 ring decimal 0–127 decimal 0–127...
  • Page 49 Chapter 4 - AT Commands, S-Registers and Result Codes Register Unit Range 100 ms 1–255 100 ms 1–254, 1 ms 1–255 80–255* 80* 80–255‡ 80‡ decimal 0, 1–127 37 (%) 10 ms 1–255 50 ms 0–255 100 ms 0, 1–255 0 Default Description Sets delay between when the...
  • Page 50 MT1932ZDX Quick Reference Guide Register Unit 1 min. 100 ms 1 char- 0–60 acter 1 sec. 1 sec. Range Default Description 0, 1–255 0 Sets how long the modem waits after the last character is received or transmitted before it disconnects. The 0 default disables the timer.
  • Page 51: Result Codes

    Chapter 4 - AT Commands, S-Registers and Result Codes Result Codes In command mode the MT1932ZDX can send responses, or result codes, to your computer. Result codes are used by communications programs and can also appear on your monitor. AT&Q0 selects Multi-Tech result codes with RELIABLE, LAPM, and COMPRESSED modifiers (default).
  • Page 52: Chapter 5 - Troubleshooting

    MT1932ZDX Quick Reference Guide Chapter 5 - Troubleshooting Introduction Your MultiModemZDX was thoroughly tested at the factory before it was shipped. If you are unable to make a successful connection, or if you experience data loss or garbled characters during your connection, it is possible that the modem is defective.
  • Page 53: None Of The Leds Light When The Modem Is On

    Test that the outlet is live by plugging a lamp into it. • The modem or power supply may be defective. If you have another Multi-Tech modem, try swapping modems. If the problem goes away, the first modem or power supply may be defective. Call Tech Support for assistance.
  • Page 54 MT1932ZDX Quick Reference Guide • Make sure you are in terminal mode in your data communications program, then type AT and press ENTER. If you get an OK response, your connections are good and the problem likely is in your phonebook entry or session settings.
  • Page 55 COM port setting in your software, and try again. • The modem may be defective. If you have another Multi-Tech modem, try swapping modems. If the problem goes away, the first modem is possibly defective. Call Tech Support for assistance (see Appendix C).
  • Page 56: The Modem Dials But Cannot Make A Connection

    MT1932ZDX Quick Reference Guide The Modem Dials But Cannot Make a Connection There can be several reasons the ZDX fails to make a connection. Possibilities include • lack of a physical connection to the telephone line. • a wrong dial tone.
  • Page 57: The Modem Disconnects While Online

    To change the dial prefix in Windows Terminal, select Settings, Modem Commands. To change it in Windows 95 HyperTerminal, select Call, Connect from the menu bar, click Dialing Properties, and type 9 in the local and long distance boxes in How I Dial from This Location.
  • Page 58: The Modem Cannot Connect When Answering

    File Transfer Is Slower Than It Should Be • You may have an older UART. For best throughput, install a 16550AFN UART or a Multi-Tech ISI serial port card. See the “Quick Start” chapter for information on how to identify your UART. •...
  • Page 59: I Am Losing Data

    • Are you downloading a compressed file with MNP 5 hardware compression enabled? Since hardware data compression cannot compress a file already compressed by an archiving program, the transfer can be marginally slower with data compression enabled than with it disabled. (See “When to Disable Data Compression” in MultiModemZDX Help.) •...
  • Page 60: I Am Getting Garbage Characters On The Monitor

    MT1932ZDX Quick Reference Guide I Am Getting Garbage Characters on the Monitor • Your computer and the remote computer may be set to different word lengths, stop bits, or parities. If you have connected at 8-N-1, try changing to 7-E-1, or vice-versa, using your communications software.
  • Page 61: Appendix A - Regulatory Information

    MULTI-TECH SOFTWARE LICENSE AGREEMENT Multi-Tech Systems, Inc. (MTS) agrees to grant and Customer agrees to accept on the following terms and conditions, a non-transferable and non- exclusive license to use the software program(s) delivered with this Agreement.
  • Page 62 Agreement. Any previous version of the software should be destroyed or returned to Multi-Tech Systems, Inc. within 90 days of receipt of the software upgrade or update.
  • Page 63 Appendix A - Regulatory Information 5. INDEMNIFICATION. MTS will indemnify and defend Customer from any claim that the software infringes on any copyright, trademark, or patent. Customer will indemnify and defend MTS against all other proceedings arising out of Customers use of the software. 6.
  • Page 64: Fcc Regulations For Telephone Line Interconnection

    MT1932ZDX Quick Reference Guide FCC Regulations for Telephone Line Interconnection This equipment complies with Part 68 of the Federal Communications Commission (FCC) rules. On the outside surface of this equipment is a label that contains, among other information, the FCC registration number and ringer equivalence number (REN).
  • Page 65 If trouble is experienced with this equipment (the model of which is indicated below) please contact Multi-Tech Systems, Inc. at the address shown below for details of how to have repairs made. If the trouble is causing harm to the telephone network, the telephone company may request you remove the equipment from the network until the problem is resolved.
  • Page 66 MT1932ZDX Quick Reference Guide NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
  • Page 67: Canadian Limitations Notice

    Appendix A - Regulatory Information Canadian Limitations Notice Notice: The Industry Canada label identifies certificated equipment. This certification means that the equipment meets certain telecommunications network protective, operational and safety requirements. The Industry Canada label does not guarantee the equipment will operate to the user’s satisfaction.
  • Page 68: Compliance With Babt Requirements

    MT1932ZDX Quick Reference Guide Compliance with BABT Requirements Approved for connection to telecommunications system specified in the instructions for use subject to the conditions set out in them. European Low Voltage Directive When correctly installed and maintained, the modem will present no hazard to the user.
  • Page 69 If a telephone or other device is connected in parallel with the modem, the combined REN must not exceed 4. A BT supplied telephone may be assumed to have REN of 1.0 unless otherwise noted. The approval of this modem for connection to the British Telecom public switched telephone network is INVALIDATED if the apparatus is subject to any modification in any material way not authorized by BABT or if it is used with or connected to:...
  • Page 70 PBXs. There is no guarantee of correct working in all circumstances. Any difficulties should be referred to Multi-Tech Systems. If sockets are required for connection to the PBX, use the BT post card only if BT owns the wiring to the PBX.
  • Page 71: Modem Ce Mark Emc And Safety Compliance

    Appendix A - Regulatory Information Modem CE Mark EMC and Safety Compliance The CE mark is affixed to the enclosed MultiTech product to confirm compliance with the following European Community Directives: Council Directive 89/336/EEC of 3 May 1989 on the approximation of the laws of Member States relating to electromagnetic compatibility;...
  • Page 72: Appendix B - Technical Specifications

    MT1932ZDX Quick Reference Guide Appendix B - Technical Specifications Your MT1932ZDX fax modem meets the following specifications: Model Numbers Data Rates (Modem) Data Rates (Fax) Data Format (Modem) Compatibility (Modem) AT&T V.32terbo, Bell 212A and 103/ Compatibility (Fax) Error Correction...
  • Page 73 Intelligent Features Command Buffer Modem Modulations Fax Modulations Carrier Frequencies AT&T V.32 terbo/ ITU-T V.32bis/V.32 Carrier Frequencies V.22bis/V.22 or Bell 212A Standard (2400 & 1200 bps) Carrier Frequencies Bell 103/113 Appendix B - Techincal Specifications Fully AT command compatible, autodial, redial, repeat dial, pulse or tone dial, dial pauses, call status display, auto parity and data rate selections, keyboard-controlled...
  • Page 74 MT1932ZDX Quick Reference Guide (300 bps) Fax Carrier Frequencies Transmit Level Frequency Stability Receiver Sensitivity AGC Dynamic Range Interface Connectors Cables Note: Any cables connected to the computer should be sheilded to reduce interference. Receive originate: Transmit answer: Receive answer: V.21 Ch2 (half duplex):...
  • Page 75 Diagnostics Indicators Speaker Manual Control Enviromental Power Requirements Dimensions Appendix B - Techincal Specifications Power-on self test, local analog loop, local digital loop, remote digital loop LEDs for Transmit Data, Receive Data, Carrier Detect, 19.2K bps, 14.4K bps, 9600 bps, Off Hook, Terminal Ready, Error Correction, Fax Command-controlled speaker for call progress monitoring...
  • Page 76: Appendix C - Service, Warranty And Tech Support

    Support Limited Warranty Multi-Tech Systems, Inc. (MTS) warrants that this product will be free from defects in material or workmanship for a period of ten years from the date of purchase or, if date of purchase is not provided, ten years from the date of shipment (limited to customers in the U.S., Canada, Mexico, and United...
  • Page 77: On-Line Warranty Registration

    Tech Support Multi-Tech Systems has an excellent staff of technical support personnel available to help you get the most out of your Multi-Tech product. If you have any questions about the operation of this unit, please call (800) 972- 2439 (USA and Canada) or (612) 785-3500 (international and local).
  • Page 78: The Multi-Tech Bbs

    There is also a message service that lets you request additional information. The phone number for the Multi-Tech BBS is (800) 392-2432 (USA and Canada) or (612) 785- 3702 (international and local). The BBS can be accessed by any asynchronous modem operating at 1200 bps to 33,600 bps at a setting of 8 bits, no parity, and 1 stop bit (8-N-1).
  • Page 79 Appendix C - Service, Warranty and Tech Support Answer Y or N to the automatic logoff question. Select a file transfer protocol by typing the indicated letter, such as Z for Zmodem (the recommended protocol). If you select Zmodem, the transfer will begin automatically. If you select another protocol, you may have to initiate the transfer yourself.
  • Page 80: Reading A Message

    Message Menu. Leaving a Message The Multi-Tech BBS has no public discussion areas. To leave a personal message, select the Message Menu by typing M at the Main Menu. Type E, then press RETURN to select the Sysop conference. Enter the name of the recipient (or “Sysop”), the subject, and the message text.
  • Page 81: About The Internet

    Appendix C - Service, Warranty and Tech Support About the Internet Multi-Tech is a commercial provider on the Internet, and we retrieve e-mail messages from the following mailboxes on a periodic basis: mtsmktg@multitech.com mtssales@multitech.com international@multitech.com International Marketing & Sales writers@multitech.com...
  • Page 82: Multi-Tech Systems, Inc. Reader Response Form

    785-3702 or (800) 392-2432. The ASCII version file name is ZDX_MAN.TXT . The Windows Help version file name is ZDXHELP.HLP . If you have any questions, please call Multi-Tech’s Tech Support at (800) 972-2439 (North America) or (612) 717-5863 (international).

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