Multitech MT5656ZDX, MultiModem MT5656ZDX, MultiModem MT5656ZDX-V User Manual

MultiModem

®

ZDX

Model MT5656ZDX-Series

Voice/Data/Fax Modem

User Guide

Copyright and Technical Support

User Guide
MT5656ZDX-Series
PN S000248I Revision I

This publication may not be reproduced, in whole or in part , without prior expressed written permission from Multi-Tech
Systems, Inc. All rights reserved.

Copyright © 2003-8 by Multi-Tech Systems, Inc.

Multi-Tech Systems, Inc. makes no r eprese ntations or warranti es with respect t o the cont ents h ereof and s pecif icall y
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 in the content hereof without obligation of Multi-Tech
Systems, Inc. to notify any person or organization of such revisions or changes.

Revision Date Description

E 11/07/02 Remove Flash protocol information. At this point Flash is not supported.
F 01/13/03 Add Fax Class 2 support and Flash protocol. Both now supported.

11/22/04 Remove Voice Commands (they are in the AT Command document). Change
power supply to 9 volts. Remove Remote Configuration as a feature.
H 06/18/07 Revise tech support information
I 08/12/08 Update Package Contents and Safety Warnings. Added the WEEE statement. Added

the RS-232 cable to the Ship Kit Contents.

Trademarks

MultiModem, Multi-Tech, and the Multi-Tech logo are trademarks of Multi-Tech Systems, Inc.
Adobe and Acrobat are trademarks of Adobe Systems Incorporated. Microsoft, Windows, Windows 95, Windows 98,
Windows NT, and Windows 200 0+ are e ither r egister ed tra demarks o r trad emarks of Microsoft Corpor ation in t he Un ited
States and/or other countries. All other brand and product names mentioned in this publication are trademarks or registered
trademarks of their respective companies.

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; D394,250; 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; 5,577,04 1; 5,574,725; D374,222; 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; D361,764; D355,658;
D355,653; D353,598; D353,144; 5,355,365; 5,309,562; 5,301,274. Other patents pending.

Notice

Though these modems are capable of 56K bps download performance, line impairments, public telephone infrastructure and
other external technological factors currently prevent maximum 56K bps connections.

World Headquarters

Multi-Tech Systems, Inc.
2205 Woodale Drive
Mounds View, MN 55112 U.S.A
[phone] or [phone]
Fax [phone]
Technical Support [phone]
Internet http://www.multitech.com

Technical Support
Country By Email By Phone

Europe, Middle East, Africa: [e-mail] +(44) 118 959 7774
U.S., Canada, all others: [e-mail] [phone] or [phone]

Multi-Tech Systems, Inc. MT5656ZDX User Guide 2

Contents

Table of Contents

Chapter 1 - Introduction

Product Description ............................................................................................................................................. 4

Chapter 2 - Hardware Installation

Ship Kit Contents ................................................................................................................................................ 5

You Supply .......................................................................................................................................................... 5

Safety Warnings .................................................................................................................................................. 5

Technical Specifications

Overview – Connecting the Modem to Your System .......................................................................................... 8

Voice Connections (Voice option only) ............................................................................................................. 10

Installing the Modem Driver .............................................................................................................................. 11

Installing Your Data Communications Software ................................................................................................ 11

Connecting to the Internet ................................................................................................................................. 12

Dial-Up Networking ........................................................................................................................................... 12

Chapter 3 - Operation ............................................................................................................................................ 13

About the LED Indicators .................................................................................................................................. 13

Configuring Your Software ................................................................................................................................ 14

Configuring Your Modem .................................................................................................................................. 14

Sending a Fax ................................................................................................................................................... 15

Chapter 4 - AT Commands ................................................................................................................................... 16

See Commands Reference Guides .................................................................................................................. 16

.............................................................................................................................................. 4

................................................................................................................................ 5

......................................................................................................................................... 6

Chapter 5 - Troubleshooting ................................................................................................................................ 17

None of the Indicators Light Up ........................................................................................................................ 17

The Modem Does Not Respond to Commands ................................................................................................ 18

The Modem Dials But Cannot Connect ............................................................................................................ 19

The Modem Disconnects While Online ............................................................................................................. 20

The Modem Cannot Connect When Answering ................................................................................................ 20

There Are Garbage Characters on the Monitor ................................................................................................ 20

The Modem Doesn’t Work with Caller ID .......................................................................................................... 20

Appendix A – Warranty and Repairs Policy ........................................................................................................ 21

Appendix B – Regulatory Compliance ................................................................................................................ 23

Appendix C

Appendix D – Upgrading the Modem ................................................................................................................... 27

Upgrade Overview ............................................................................................................................................ 27

Appendix E – Waste Electrical and Electronic Equipment Directive (WEEE) ................................................. 29

Index

–

Installing a Modem in Linux

........................................................................................................................................................................ 30

................................................................................................................ 25

Multi-Tech Systems, Inc. MT5656ZDX User Guide 3

Chapter 1 – Introduction

Chapter 1 - Introduction

Congratulations on your purchase of the Multi-Tech MT5656ZDX-Series modem.

• The Multi-Tech MT5656ZDX modem is your data/fax modem.

• The MT5656ZDX-V offers your voice option.

You have acquired one of the finest intelligent data/fax or voice/data/fax modems available today from one of
the world’s oldest modem manufacturers: Multi-Tech Systems, Inc. This user guide will help you install,
configure, test, and use your modem.

Product Description

The Multi-Tech MT5656ZDX and MT5656ZDX-V modems are compatible with the ITU-TV.92 protocol that
provide quick connections, downstream transmissions at speeds up to 56K bps, and upstream transmissions at
speeds up to 48K bps when connected to V.92-compatible Internet Service Providers. The V.92 protocol is
able to send downstream from the Internet to your computer at these speeds because data on the telephone
network typically is converted from digitial t o analog only one before it reaches your modem. Upstream
transmissions and transmissions be twee n client modems are limited to 33.6K bps, as are upstream
transmissions that are converted more than once on the telephone lines.

Modem features include Plug and Play operation. In standard mode, the modem can store up to four
command lines or telephone numbers of up to 40 characters each in nonvolatile memory. Other modem
capabilities include modem-on-hold, AT&T calling card tone detection, pulse and tone dialing, adaptive answer,
V.42bis and V.44 data compression, and self-reset ting lightning protection.

Please note that some V.92 features are turned off in the factory default configuration, and may need to be
turned on, depending on your needs.

Multi-Tech Systems, Inc. MT5656ZDX User Guide 4

Chapter 2 – Hardware Installation

Chapter 2 - Hardware Installation

This chapter shows you step-by-step how to set up your Multi-Tech modem, test it, and make your first calls.

Ship Kit Contents

• One MultiModem ZDX (MT5656ZDX)

• One set of four self-adhesive rubber feet

• One power supply

• One RS-232 cable (a DB9F to DB25M serial cable)

• One RJ-11 telephone cable

• One printed Quick Start Guide

One MT5656ZDX CD

Reference Guide, and a link to Adobe Acrobat software

containing modem drivers, communications software (PhoneTools), this User Guide, AT Commands

You Supply

• A computer with an available serial port.

• A nearby AC power outlet

• A nearby phone jack

Optional: If you want speakerphone functions along with the ability to record sound or .WAV files through the
sound card at the same time, you will need:

• One stereo PC microphone

• One stereo male to male patch cord

• One sound card

• Speakers

Safety Warnings

• Use this product only with UL- and CUL-listed computers.

• To reduce the risk of fire, use only UL-listed 26 AWG (.41mm) or larger telephone wiring.

• 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.

• Use caution when installing or modifying telephone lines.

• Avoid using a telephone during an electrical storm; there is a risk of electrical shock from lightning.

• Do not use a telephone in the vicinity of a gas leak.

• The telephone cord is to be disconnected before accessing the inside of the equipment.

Multi-Tech Systems, Inc. MT5656ZDX User Guide 5

Technical Specifications

The MultiModemZDX modem meets the following specifications:

Trade Name MultiModemZDX
Model Number MT5656ZDX
Server-to-Client Data Rates V.90 speeds when accessing a V.90 or V.92 server (actual speed

depends on server capabilities and line conditions) *Though these
modems are capable of 56K bps download performance, line
impairments, public telephone infrastructure and other external
technological factors currently prevent ma ximu m 56K b ps
connections.

Client-to-Server Data Rates Up to 50Kbps when accessing a V.92 server (actual speed depends

on server capabilities and line conditions); otherwise, the same as
client-to-client data lines.

Client-to-Client Data Rates 33600,31200, 28800, 26400, 24000, 21600, 19200, 16800, 14400,

12000, 9600, 7200, 4800, 2400, 1200, 0- 3 00 bps

Fax Data Rates 14400, 12000, 9600, 7200, 4800, 2400, 1200, 0-300 bps
Data Format Serial, binary, asynchronous
Modem Compatibility ITU-T V.92, V.90, V.34 enhanced, V.34, V.34bis, V.32, V.22bis, V.22;

Bell 212A and 103; ITU-T V.21; V.42, V.42bis, V.44

TM

Chapter 2 – Hardware Installation

Fax Compatibility T.4, T30, V.21, V.27ter, V.29, V.34, V.17; TIA/EIA 578 Class 1 and

Class 2, TR29.2

Video Compatibility ITU-T V.80 for H.34 video conferencing
Voice Compatibility AT+V/TAM command set
Voice Mode Sampling Up to 44.100 KHz (down-sampled to 11.025 KHz)
Error Correction ITU-T V.42 (LAP-M or MNP 4)
Data Compression ITU-T V.44 (4:1 throughput), V.42bis (4:1 throughput), MNP 5

(2:1 throughput)

Speed Detection Automatic speed detection and switching between available speeds
Speed Conversion Serial port data rates adjustable to 300; 1200; 2400; 4800; 9600;

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

Mode of Operation Fax online modes, full duplex data over dial-up; voice
Flow Control XON/XOFF (software), RTS/CTS (hardware)
Intelligent Features Plug and play, full AT command compatible, autodial, redial, repeat

dial, pulse or tone dial, dial pauses, auto answer, adaptive
answer; EIA extended automode; caller ID, adaptive line probing;
automatic symbol and carrier frequency during start-up, retrain a nd
rate renegotiation, DTMF detection, call status display, auto-parity
and data rate selections, keyboard-controlled modem options,
non-volatile memory, US Caller ID reporting; quick-connect startup

Command Buffer 40 Characters
Transmission Level -11 dBm (North America and Pan Euro) - varies by country setting
Frequency Stability ±0.01%
Receiver Sensitivit y -43 dBm under worst-case conditions
AGC Dynamic Range 43 dB
Connectors Two RJ-1 1 phone jacks, DB25F RS-232C connector, power

Multi-Tech Systems, Inc. MT5656ZDX User Guide 6

connector

Chapter 2 – Hardware Installation

Cables One modular telephone cable
Diagnostics Local analog loop, local digital loop, remote digital loop
Speaker Speaker for call progress monitoring
Speaker and Microphone Jacks MultiModemZDXV
Manual Controls Power switch
Environmental Temperature range 0°–50°C (32°–120°F); humidity range 20–90%

(non-condensing)

Storage Temperature -10° to +85°C (14°- 185° F)
Power Consumption 150 mA @ 9 VDC
Dimensions 10.8 cm wide x 14.8 cm long x 2.9 high (4.25” × 5.8” x 1.15”)
Weight 224 g (8 oz)
Operating Systems Tested for use with Windows 2000+ and Linux (2.2.x kernal)

Multi-Tech Systems, Inc. MT5656ZDX User Guide 7

Chapter 2 – Hardware Installation

Overview – Connecting the Modem to Your System

Turn off your computer. Placing the modem in a convenient location, connect it to your computer’s serial port, to the phone
line, to AC power, and to your phone (phone is optional).

MT5656ZDX Connections

Connect the Modem to Your PC (RS-232 Connection)

Plug one end of the RS-232 serial cable into the RS-232 connec tor on the mo de m, and plug th e
other end into a serial port connector on your computer.

Connect the Modem to the Telephone Line (Line Connection)

Plug one end of the phone cable into the modem’s LINE jack and the other end into a phone wall
jack. The phone cable is included with your modem.

Note: The LINE jack is not interchangeable with the PHONE jack . Do not plu g th e phone into the
LINE jack or the line cable into the PHONE jack.

(Optional) Connect the Modem to the Phone

For voice-only calls, plug a phone into the modem’s PHONE jack.

Connect the Power

Make sure the power switch is set to OFF. The power switch is located on the side panel of the
modem.

Plug the power supply into a power outlet or power strip. Plug the other end into the PWR jack on the
modem.

Caution: Use only the power supply cable supplied with the modem. Use of any other power supply
voids the warranty and can damage the modem.

MT5656ZDX Connections.

Multi-Tech Systems, Inc. MT5656ZDX User Guide 8

Chapter 2 – Hardware Installation

A Note About Power Connection, Surge Protectors, and Lightning

Power surges and other transient voltages on power lines, such as those caused by lightning
strikes, can damage or destroy your modem. Therefore, we recommend that you plug the modem
into a surge protector rather than directly into a wall outlet, preferably a sur ge pro t ector that provides
protection against electrical spikes on the phone line as well as on the power line. Note that not even
a surge protector can guard against damage f rom a n earby lightn ing strike. Durin g an electrica l
storm, it is safest to unplug your computer equipment from both the power outlet and the phone line.

Power-On Test

Test the modem by turning it on (an on-off switch is located on th e side panel) . When you a pply
power, the modem performs a diagnostic self-test. The PWR indicator lights; and if a terminal program
is running, the TR indicator also lights. If this does not happen, check that the power switch is on,
the power supply is solidly connected, and the AC outlet is live. If these measures do not work see
the Troubleshooting chapter.

Note: The Federal Communications Commission (FCC) and Industry Canada impose certain
restrictions on equipment connected to public phone systems. For more information, see A ppendix
B.

Multi-Tech Systems, Inc. MT5656ZDX User Guide 9

Chapter 2 – Hardware Installation

Voice Connections (Voice option only)

Voice Connections for Voice Models

(Optional) Connect the Modem to the Phone

For voice-only calls, plug a phone into the modem’s PHONE jack.

Connect the Microphone

For voice mail or speakerphone applications, plug an unamplified microphone into the MIC jack on
the side of the modem. The microphone should have a stereo 1/8-inch (3.5mm) mini plug. Do not use
a monophonic microphone.

Connect the Speaker

For speakerphone or voice mail applications, use a 1 /8-inch (3.5mm) plug ma le-to-male stereo
patch cord to c o nnec t the SPKR jack on the side of the modem to the LINE IN jack on your sound
card. If your sound card does not have a LINE IN j ack, u se it s MIC j a ck. The st ereo m a l e -to- m a l e
patch cord can be purchased at a local PC retail store.

If you do not have a sound card, you can plug an amplified speaker directly into the SPKR jack.

Multi-Tech Systems, Inc. MT5656ZDX User Guide 10

Chapter 2 – Hardware Installation

Installing the Modem Driver

If you use W i n do w s 2 00 0 or n ewer, you mus t in s t a l l t h e mo de m d r i v er. If you use another operating system, see
Appendix C.

When operating the modem under Windows, the modem driver can be installed by using the Plug and Play
feature. Follow the 4-step procedure below.

1. Make sure your modem is connected properly, and then turn on your computer. Windows should detect

your new modem and open the Welcome to the Found New Hardware wizard.

Note: If Windows cannot find a modem, your modem may be turned off, it may be plugged into the wrong

connector on your comp u t e r. See “Troubles ho ot ing” in the User Guide .

2. Insert the MT5656ZDX CD.

3. Windows installs and configures the modem.

4. Click Finish to exit.

Installing Your Data Communications Software

Data communications software is designed to send and receive messages. Multi-Tech includes data
communications software with your modem. However, the modem will work with most data communications
software. To install the data communications software provided with this modem, insert the CD into the CD­ROM drive and click on the PhoneTools icon. You will be asked to choose your language. The software will
automatically load onto your PC.

Multi-Tech Systems, Inc. MT5656ZDX User Guide 11

Chapter 2 – Hardware Installation

Connecting to the Internet

Your Multi-Tech modem is your gateway to the Internet and the World Wide Web. To access the Internet and
Web via your modem, you must establish a dial-up account with an Internet ser v ice pro vider ( ISP) . To loca te
an ISP n ear you, look in a local directory or computer publication. Your ISP should provide you with the following
information:

• User name (also called user ID)

• Password

• Access number (the number you call to connect to the server)

• Host name and/or domain name

• Domain Name Server (DNS) server addres s

If, besides the Web, you use the Internet for email and newsgroups, your ISP should also provide you with the
following information:

• Email or POP mail address

• POP server address

• Mail or SMTP address

• News or NNT server address

Dial-Up Networking

Before you can connect to the Internet, you must set up a remote-node client program on your computer. The
Windows version is called Dial-Up Networking. Dial-Up Networking establishes your connection to the ISP’s
server, which is the shared computer that manages calls from clients (your computer) to the Internet. Most, if not
all, Windows browsers start Dial-up Networking automatically when you open them.

For instructions on how to set up Dial-Up Networking, consult your ISP or your operating system’s online help or
printed documentation. Many ISPs include with their service a program that will instruct and configure Dial-Up
Networking automatically for you.

Multi-Tech Systems, Inc. MT5656ZDX User Guide 12

Chapter 3 – Operation

Chapter 3 - Operation

Like any modem, your Multi-Tech modem operates only under the co ntrol of a commun icat ions progra m, suc h
as the communications program included with your modem. It a lso oper ates un der other general- purpose data
communication programs, such as Windows Terminal and HyperTerminal. For information on how to use the
modem with the communications program of yo ur ch oice, please refer to the documentation provided with the
data communications program.

An experienced modem user can configure the program’s software to change the way the software interacts with
a modem and configure the modem to change the way it operates.

Front Panel

About the LED Indicators

The modem has ten LED indicators on the front panel that indicate status and activity:
TD Transmit Data

Flashes when the modem is transmitting data to another modem.
RD Receive Data

Flashes when the modem is receiving data from another modem.
CD Carrier Detect

Lights when the modem detects a valid carrier signal from another modem. It is on when the

modem is communicating with the other modem, and off when the link is broken.

OH Off-Hook

Lights when the modem is off-hook, whic h occurs when the modem is dia ling, online, or

answering a call. The LED flashes when the modem pulse-dials.

TR Terminal Ready

Lights when a communication program is using the modem. It means the modem is ready for

an outgoing or incoming call. It goes off when the communication program disconnects the
serial port. When it goes off, a connected modem will disconnect.

Note: When you turn on the modem, the PWR indicator lights; and if a terminal program is running,
the TR indicator also lights.

Multi-Tech Systems, Inc. MT5656ZDX User Guide 13

Chapter 3 – Operation

Configuring Your Software

You may use either the communication program included with your modem or a third-par ty program.
Communication programs designed for Windows normally do not need to be manually c onfigured, since they
obtain configuration information from Windows. Though each communication program is different, the following
procedure should work with most of them.

1. Turn on your computer and run your communications program.

2. Find the dialog box or menu that lets you select your modem. (In Windows Terminal select

Settings | Modem Commands; in HyperTerminal select File | Properties | Phone
Number; and i n t h e communications program select Configure | General Configuration |
Communication | Change Modem.

3. Choose your modem from the program’s modem list. If it isn’t listed, choose a generic modem

and modify the settings as necessary.

4. Change the modem initialization string, if necessary. The factory default configuration works well

for most purposes. To load the factory default configuration, use AT&F. To load a custom
configuration that was saved using the &W command, use ATZ. Note that the Z command must
be in a command string by itself. For a Macintosh, the initialization string should include the
&D0 command. If you do not want the modem to always answer the phone, add S0=0 to the
string. To use Caller ID with the modem, add S0=2 to the string (Caller ID information is sent
between the first and second rings, so the phone must ring at least twice before the modem
picks up the line). Depending on the software, you might have to end the string with a carriage
return character (^M).

Note: To change the mode m’s default configuration, type new commands in the communication

program’s terminal window, adding the &W command to store them in the modem’s nonvolatile
memory. For instance, to create a default configuration for a Macintosh computer that turns off
autoanswer, type AT&F&D0S0=0&W. The new configuration loads automatically whenever
the modem is turned on or receives the ATZ command.

5. Select the port the modem is connected to (normally COM1 or COM2).

6. Select your serial port speed. This can be labeled “maximum speed,” “DTE bps,” or “baud rate.”

Ideally, if you use data compression, you should set your serial port baud rate to four times the
modem’s maximum transmission sp e e d o r fa s te r; however, f e w fi l e s ca n b e co mp r e s s ed
enough to require speeds that high, and not all serial port s can handle speeds that h igh.

7. If the communication program has an autobaud selection, make sure it is disabled. Autobaud

applies only to older modems, and can cause problems if enabled.

8. If the program allows you to edit the no-connect messages (NO CARRIER, BUSY, NO

ANSWER, NO DIAL TONE), make sure there is no space between DIAL and TONE
DIAL TONE.

9. Refer to the program manual or online help for other configuration choices. In most cases you

can accept the default values.

in NO

Configuring Your Modem

Your modem normally is configured through Windows or through the communication program you are using.
The default settings work best for most purposes. However, you also can configure your modem by sending
AT commands to the modem. See the AT Command Reference Guide for a list of AT (data) commands and
how to use them.

Multi-Tech Systems, Inc. MT5656ZDX User Guide 14

Chapter 3 – Operation

Sending a Fax

With your data communications software, you can use your modem to send and receive faxes directly from your
computer. The following steps show you how to fax a document directly from a Windows application without
opening the data communications program.

1. Create a document in a Windows application, such as Word, a graphics editor, or a spreadsheet.

Keep the application and the document op en, and select Print from the File menu.

2. Select CAPTURE FAX BVRP as the printer driver, and then click OK. The Send Fax wizard

appears.

3. In the Recipient section, type the required information or extract it from the Phone Book by

clicking this icon.

4. In the Template section, optionally select a cover page and type a cover message.

5. Select the document to be sent. The default file when sending from within a Windows application is

Capture.dgr.

6. Select the date and time to send the document, if you do not want to send it immediately.

7. Click Finish to start the transmission.

Multi-Tech Systems, Inc. MT5656ZDX User Guide 15

Chapter 4 – AT Commands

Chapter 4 - AT Commands

See Commands Reference Guides

AT Commands and Voice Commands are in the AT Command Reference Guide.
Fax Class 1 Commands and Fa x Class 2 Commands are documented in separate Fax Reference

Guides. All Reference Guides are included on the MT5656ZDX CD and on the Multi-Tech Web site.

Multi-Tech Systems, Inc. MT5656ZDX User Guide 16

Chapter 5 – Troubleshooting

Chapter 5 - Troubleshooting

Your modem 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, check the list of
troubleshooting procedures before calling Multi-Tech.

• None of the LEDs light when the modem is on.

• The modem does not respond to commands.

• The modem dials but is unable to make a connection.

• The modem disconnects while online.

• The modem cannot connect when answering.

• File transfer is slower than it should be.

• Data is being lost.

• There are garbage characters on the monitor.

• The modem doesn’t work with Caller ID.

• Fax and data software can’t run at the same time.

If you experience problems, please check the following possibilities before calling Technical Support
(refer to Appendix A).

None of the Indicators Light Up

When you turn on the modem, the PWR indicator and the terminal turn on. If the LEDs remain off, the modem is probably not

receiving power.

• Make sure the modem’s power switch is on, especially if you normally turn the modem on by
turning on a power strip.

• If the modem is plugged into a power strip, make sure the power strip is plugged in and its
power switch is on.

• Make sure the transformer module is firmly connected to the modem and to the wall outlet or
power strip.

• If the power strip is on and the modem switch is on, try moving the transformer module to
another outlet on the power strip.

• Test that the outlet is live by plugging another device, such as a lamp, into it.

• The modem or the DC power transformer may be defective. If you have another Multi-Tech

modem, try swapping modems. If t he proble m goes awa y, the first modem or the DC power
transformer may be defective. Call Technical Support for assistance.

CAUTION: Do not under any circumstances replace the transform er module with one designed for another

product. Doing so can damage the modem and void your warranty.

Multi-Tech Systems, Inc. MT5656ZDX User Guide 17

Chapter 5 – Troubleshooting

The Modem Does Not Respond to Commands

• Make sure the modem is plugged in and turn ed on . (See “None of the Indicators L ight.”)

• Make sure you are issuing the modem commands fro m the data commun ications program, either

manually in terminal mode or automatically by configuring the software. (You cannot send
commands to the modem from the DOS prompt.)

• Make sure you are in terminal mode in your data communicatio ns program, then type AT and
pres s ENTER. If you get an OK response from your modem, your connections are good an d the
problem likely is in the connection setup in your communications program.

• If you don’t get an OK, the problem may still be in the communications program. Make sure you have
done whatever is ne cessary in you r sof twar e to m ake a port connection. Not all communication
programs connect to the COM port automatically. Some connec t when the software loads and
remain connected until the program terminates. Others can disconnect without exiting the
program. The modem’s TR indicator lights to show that the software has taken control of the modem
through the COM port.

• Your communications program settings ma y not match the physical port the modem is connected
to. The serial cable might be plugged in to the wrong conn ector—check your computer
documentation to make sure. Or you might have selected a COM port in your software other than the
one the modem is physically connected to—compare the settings in your software to the physical
connection.

• If the modem is on, the cable is plugged into the correct port, the communications program is
configured correctly, and you still don’t get an OK, the fault might be in the serial cable. Make sure it
is firmly connected at both ends.

• Is this the first time you have used the cable? If so, it may not be wired correctly. Check the cable
description on the packaging to make sure the cable is the right one for your computer.

• Peripheral expansion cards, such as sound and game cards, might include a serial port
preconfigured as COM1 or COM2. The extra serial port, or the card itself, may use the same COM
port, memory address, or interrupt request (IRQ) as your communication port. Be sure to disable any
unused ports.

Windows 9x and 2000: Right-click on My Computer, select Properties from the menu , c lick
on the Device Manager tab, double-click on Ports, then double-click on the communication port
your modem is connected to. In the port’s Properties sheet, click on the Resources tab to see
the port’s input/output range and interrupt request. If another device is using the same address
range or IRQ, it appears in the Conflicting Device List. Uncheck Use automatic settings to
change the port’s settings so they do not conflict with the other device, or select the port the
conflict in g de v i c e is on and change it instead . I f yo u need to open your computer to change
switches or jumpers on the conflicting device; refer to the device’s documentation.

• The serial port might be defective. If you have anothe r seria l por t, insta ll the mo dem on it, change
the 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 may be defective . Call Technica l Suppor t for assist ance (Re fer
to Appendix A).

Multi-Tech Systems, Inc. MT5656ZDX User Guide 18

Chapter 5 – Troubleshooting

The Modem Dials But Cannot Connect

There can be several reasons the modem fails to make a connection. Possibilities include:

• Lack of a physical connection to the telephone line.

• A missing dial tone.

• A busy signal.

• A wrong number.

• No modem at the other end.

• A faulty modem, computer, or software at the other end.

• Incompatibility between modems.

You can narrow the list of possibilities by using extended result codes. Extended result codes are enabled by
default. If they have been disabled, include V1X4 in the modem’s initialization string, or in terminal mode enter
ATV1X4 and press ENTER. When you dial again, the modem reports the call’s progress.

• If the modem reports NO DIAL TONE, check that the modem’s phone line cable is connected to both
the modem’s LINE jack (not the PHONE jack) and the phone wall jack. If the cable looks secure, try
replacing it. If that doesn’t work, the problem might be in your building’s phone installation . To test the
building installation, plug a phone into your modem’s phone wall jack and liste n for a d ial tone. If you
hear a dial tone, your modem might be installed behind a corporate phone system (PBX) with an internal
dial tone that sounds different from the normal dial tone. In that cas e , the modem might not recognize the
dial tone and might treat it as an error. Check your PBX manual to see if you can change the internal
dial tone; if you can’t, change your modem’s initialization string to replace X4 with X3, which will
cause the modem to ignore dial tones (note, however, that X3 is not allowed in some co untries, such as
France and Spain).

• If the modem reports BUSY, the other number might be busy, in which case you should try again later, or it
might indicate that you have failed to add a 9, prefix to the phone number if you must dial 9 for an outside
line.

If you must dial 9 to get an outside line, the easiest wa y to dial it au tomatical ly is to includ e it in the
modem’s dial prefix, e.g., ATDT9. Note the comma, which inserts a pause before the number is dialed. By
inserting 9, into the dial prefix, you do not have to include it in each directory entry.

• If the modem reports NO ANSWER, the other system has failed to go off-hook, or you might have dialed a
wrong number. Check the number.

• If the modem re ports NO CARRIER, the pho ne was answered at the other end, but no connection was
made. You might have dialed a wrong number, and a person answered instead of a computer, or you might
have dialed the correct number but the other computer or software was turned off or faulty. Check the
number and try again, or try calling another system to make sure your modem is working. Also, try
calling the number on your telephone. If you hear harsh sounds, then another modem is answering
the call, and the modems might be having problems negotiating because of modem incompatibilities or
line noise. Try connecting at a lower speed.

Multi-Tech Systems, Inc. MT5656ZDX User Guide 19

The Modem Disconnects While Online

• If you have Call Waiting on the same phone line as your modem, it can interrupt your connection

when someone tries to call you. If you have Call Waiting, disable it before each call. In most
phone areas in North America, you can disable Call Waiting by preceding the phone number with
*70 (check with your local phone company).

You can automatically disable Call Waiting by including the disabling code in the modem’s dial prefix
(e.g., ATDT*70,—note the comma, which inserts a pause before the number is dialed). To change
the dial prefix in Windows Terminal, select Settings | Modem Commands. To change it in
HyperTerminal, select Connect from the Call menu, click Dialing Properties, check This location
has Call Waiting, and select the correct code for your phone service.

• If you have extension phones on the same line as your modem, you or someone else can interrupt

the connection by picking up another phone. If this is a frequent problem, disconnect the extension
phones before using the modem, or install another phone line especially for the modem.

• Check for loose connections between the modem and the computer, the phone jack, and AC

power.

• You might have had a poor connection because of line conditions or the problem might have

originated on the other end of the line. Try again.

Chapter 5 – Troubleshooting

• If you were online, it might have hung up on you because of lack of activity on your part or because

you exceeded your time limit for the day. Try again.

The Modem Cannot Connect When Answering

Autoanswer might be disabled. Turn on autoanswer in your data communications program or send the
command ATS0=1 (ATS0=2 if you have Caller ID service) to your modem in terminal mode.

There Are Garbage Characters on the Monitor

• Your computer and the remote computer might 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
program.

• You might be experiencing line noise. Enable error correction, if it is disabled, or hang up and

call again; you might get a better connection the second time.

• Try entering the &V1 command to display information about the last connection, making a screen

print of the connection statistics, and checking for parameters that might be unacceptable.

The Modem Doesn’t Work with Caller ID

• Caller ID information is transmitted between the first and second rings, if the modem is set to

answer after only one ring (S0=1), the modem will not receive Caller ID in formation. Check your
initialization string, and if necessary change it to set the modem to answer af ter the second ring
(S0=2).

• Make sure that you have Caller ID service from yo ur teleph one comp an y.

Multi-Tech Systems, Inc. MT5656ZDX User Guide 20

Appendix A – Warranty and Repairs Policy

Appendix A – Warranty and Repairs

Policy

Multi-Tech Warranty Statement

Multi-Tech Systems, Inc., (hereafter “MTS”) warrants that its products will be free from defects in material or workmanship for a period of two,
five, or ten years (depending on model) from date of purchase, or if proof of purchase is not provided, two, five, or ten years (depending on
model) from date of shipment.

MTS MAKES NO OTHER WARRANTY, EXPRESS OR IMPLIED, AND ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED.

This warranty does not apply to any products which have been damaged by lightning storms, water, or power surges or which have been
neglected, altered, abused, used for a purpose other than the one for which they were manufactured, repaired by Customer or any party
without MTS’s written authorization, or used in any manner inconsistent with MTS’s instructions.

MTS’s entire obligation under this warranty shall be limited (at MTS’s option) to repair or replacement of any products which prove to be
defective within the warranty period or, at MTS’s option, issuance of a refund of the purchase price. Defective products must be returned by
Customer to MTS’s factory — transportation prepaid.

MTS WILL NOT BE LIABLE FOR CONSEQUENTIAL DAMAGES, AND UNDER NO CIRCUMSTANCES WILL ITS LIABILITY EXCEED THE
PRICE FOR DEFECTIVE PRODUCTS.

Repair Procedures for U.S. and Canadian Customers

In the event that service is required, products may be shipped, freight prepaid, to our Mounds View, Minnesota factory:
Multi-Tech Systems, Inc.

2205 Woodale Drive
Mounds View, MN 55112 U.S.A
Attn: Repairs, Serial # ____________

A Returned Materials Authorization (RMA) is not required. Return shipping charges (surface) will be paid by MTS to destinations in U.S. and
Canada.

Please include, inside the shipping box, a description of the problem, a return shipping address (must have street address, not P.O. Box), and
your telephone number. If the product is out of warranty, a payment in advance is required. Acceptable means of payment include credit card,
wire transfer or a check in U.S. dollars drawn on a U.S. Bank.

For out of warranty repair charges, go to COMPANY/Policies/warranty/
Extended two-year overnight replacement service agreements are available for selected products. Please call MTS customer service at (888)

288-5470 or visit our web site at /PARTNERS/Programs/overnight_replacement/
Please direct your questions regarding technical matters, product configuration, verification that the product is defective, etc., to our Technical

Support department at [phone] or e-mail [e-mail]
shipping, billing, etc., to our Repair Accounting department at [phone] or [phone], or e-mail [e-mail].

Repairs for damages caused by lightning storms, water, power surges, incorrect installation, physical abuse, or user-caused damages are
billed on a time-plus-materials basis.

for details on rates and coverages.

. Please direct your questions regarding repair expediting, receiving,

Repair Procedures for International Customers

(Outside U.S.A. and Canada)
Your original point-of-purchase Reseller may offer the quickest and most economical repair option for your Multi-Tech product. You may also

contact any Multi-Tech sales office for information about the nearest distributor or other repair service for your Multi-Tech product. The Multi­Tech sales office directory is available at www.multitech.com/PARTNERS/Channels/offices/

In the event that factory service is required, products may be shipped, freight prepaid to our Mounds View, Minnesota factory. Recommended
international shipment methods are via Federal Express, UPS or DHL courier services, or by airmail parcel post; shipments made by any other
method will be refused. Please include, inside the shipping box, a description of the problem, a return shipping address (must have street
address, not P.O. Box), and your telephone number. If the product is out of warranty, a payment in advance is required. Acceptable means of
payment include credit card, wire transfer or a check in U.S. dollars drawn on a U.S. Bank. Repaired units shall be shipped freight collect,
unless other arrangements are made in advance.

Please direct your questions regarding technical matters, product configuration, verification that the product is defective, etc., to our Technical
Support department nearest you or e-mail [e-mail]
expediting, receiving, shipping, billing, etc., to our Repair Accounting department at +[phone] in the U.S.A., or e-mail

[e-mail]

Multi-Tech Systems, Inc. MT5656ZDX User Guide 21

.

. When calling the U.S., please direct your questions regarding repair

Appendix A – Warranty and Repairs Policy

Repairs for damages caused by lightning storms, water, power surges, incorrect installation, physical abuse, or user-caused damages are
billed on a time-plus-materials basis.

Repair Procedures for International Distributors

International distributors should contact their MTS International sales representative for information about the repair of Multi-Tech product(s).
Please direct your questions regarding technical matters, product configuration, verification that the product is defective, etc., to our

International Technical Support department at +[phone]. When calling the U.S., please direct your questions regarding repair expediting,
receiving, shipping, billing, etc., to our Repair Accounting department at +[phone] in the U.S.A. or e-mail [e-mail]

Repairs for damages caused by lightning storms, water, power surges, incorrect installation, physical abuse, or user-caused damages are
billed on a time-plus-materials basis.

.

Replacement Parts

SupplyNet, Inc. can supply you with replacement power supplies, cables and connectors for selected Multi-Tech
products. You can place an order with SupplyNet via mail, phone, fax or the Internet at the following addresses:

Mail: SupplyNet, Inc.
614 Corporate Way
Valley Cottage, NY 10989
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Internet:

http://www.thesupplynet.com

Multi-Tech Systems, Inc. MT5656ZDX User Guide 22

Appendix B – Regulatory Compliance

Appendix B – Regulatory

Compliance

FCC Part 15

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 reasona ble protecti on agai nst harmful inter ference in a residen tial installa tion. T his equ ipment
generates, uses, and can radiate radio frequency energy, and if not installed and used in accordance with the instructions, may cause
harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and
on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Plug the equipment into an outlet on a circuit different from that to which the receiver is connected.

• Consult the dealer or an experienced radio/TV technician for help.

This device complies with Part 15 of the FCC rules. Operation of this device is subject to the following conditions: (1) This device may not
cause harmful interference, and (2) this device must accept any interference that may cause undesired operation.
WARNING: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s
authority to operate the equipment.

Industry Canada

This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
Cet appareil numérique de la classe B respecte toutes les exigences du Reglement Canadien sur le matériel brouilleur.

FCC Part 68 Telecom

1. This equipment complies with part 68 of the Federal Communications Commission Rules. On the outside surface of this equipment is a
label that contains, among other information, the FCC registration number. This information must be provided to the telephone company.

2. The suitable USOC jack (Universal Service Order Code connecting arrangement) for this equipment is shown below. If applicable, the
facility interface codes (FIC) and service order codes (SOC) are shown.

3. An FCC-compliant telephone cord and modular plug is provided with this equipment. This equipment is designed to be connected to
the telephone network or premises wiring using a compatible modular jack that is Part 68 compliant. See installation instructions for
details.

4. The ringer eq uivalenc e numb er (REN) is us ed t o determi ne th e number of devices that may be connected to the telephone line.
Excessive RENs on the telephone line may result in the device not ringing in response to an incoming call. In most, but not all, areas
the sum of the RENs should not exceed 5.0. To be certain of the number of devices that may be connected to the line, as determined
by the total RENs, contact the local telephone company.

5. If this equipment causes harm to the telephone network, the telephone company will notify you in advance that temporary
discontinuance of service may be required. But if advance notice is not practical, the telephone company will notify you as soon as
possible. Also, you will be advised of your right to file a complaint with the FCC if you believe it is necessary.

6. The telephone company may make changes in its facilities, equipment, operations, or procedures that could affect the operation of the
equipment. If this happens, the telephone company will provide advance notice in order for you to make necessary modifications in
order to maintain uninterrupted service.

7. 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 re pairs 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.

8. No repairs are to be made by you. Repairs are to be made onl y by Multi-Tech Systems or its licensees. Unauthorized repairs void
registration and warranty.

9. This equipment should not be used on party lines or coin lines.

10. If so required, this equipment is hearing-aid compatible.

Manufacturer: Multi-Tech Systems, Inc.
Trade Name: MultiModem
Model Number: MT5656ZDX

Registration No: US:AN7M501B56ZDX
Ringer Equivalence No: 0.3B

Modular Jack (USOC): RJ1 1C or RJ1 1W (single line)
Service Center in USA: Multi-Tech Systems, Inc.

2205 Woodale Drive
Mounds View, MN 55112

Multi-Tech Systems, Inc. MT5656ZDX User Guide 23

Appendix B – Regulatory Compliance

Canadian Limitations Notice

Notice: The ringer equivalence number (REN) assigned to each terminal device provides an indication of the maximum number of
terminals allowed to be connected to a telephone interface. The termination on an interface may consist of any combination of devices
subject only to the requirement that the sum of the ringer equivalence numbers of all the devices does not exceed 5.

Notice: The Industry Canada l abel ide ntifies c ertificated equi pment . This ce rtificatio n means that t he equipme nt meets c ertain
telecommunications network protective, operational and safety requirements. The Industry Canada label does not guarantee the equipment
will operate to the user’s satisfaction.

Before installing this equipment, users should ensure that it is permissible to be connected to the facilities of the local telecommunications
company. The equipment must also be installed using an acceptable method of connection. The customer should be aware that compliance
with the above conditions may not prevent degradation of service in some situations. Repairs to certified equipment should be made by an
authorized Canadian maintenance facility designated by the supplier. Any repairs or alterations made by the user to this equipment or
equipment malfunctions may give the

Users should ensure for their own protection that the electrical ground connections of the power utility, telephone lines and
internal metallic water pipe system, if present, are connected together. This precaution may be particularly important in rural
areas.

Caution: Users should not attempt to make such connections themselves, but should contact the appropriate

electric inspection authority, or electrician, as appropriate.

telecommunications company cause to request the user to disconnect the equipment.

International Modem Restrictions

Some dialing and answering defaults and restrictions may vary for international modems. Changing settings may cause a
modem to become non-compliant with national telecom requirements in specific countries. Also note that some software
packages may have features or lack restrictions that may cause the modem to become non-compliant.

EMC, Safety, and R&TTE Directive Compliance

The CE mark is affixed to this 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
re l a t i n g t o electromagnetic compatibility;

and

• Council Directive 73/23/EEC of 19 February 1973 on the harmonization of the laws of Member States relating to
elec trical equipment designed for use within certain voltage limits;

and

• Council Directive 1999/5/EC of 9 March on radio equipment and tel ecommunications terminal equipment and
the mutual recognition of their conformity.

Multi-Tech Systems, Inc. MT5656ZDX User Guide 24

Appendix C – Installing a Modem in Linux

Appendix C

–

Installing a Modem in

Linux

This appendix explains how to install a modem on a PC operating under the RedHat Linux 6.2 op erating
system. Other versions of RedHat and other Linux operating systems should be similar. Briefly, in Linux, you do
not need drivers for most standard external modems and most internal ISA bus modems. Programs in Linux
commonly call upon the port, rather tha n the modem.

Standard Linux Serial Port Definitions

Port Linux Port

Com 1 ttyS0
Com 2 ttyS1

Com 3 ttyS2
Com 4 ttyS3

Installation

Connect the external modem to an available serial port.

Setup

This section describes how to make sure Linux can talk to the modem and be able to dial up to the
Internet.

Using the Terminal Program Minicom to Verify Operation

1. At the command prompt, type minicom –s and press ENTER.

2. Select Serial port setup and press ENTER.

3. From Serial port setup, use the A key to access Serial Device, and then press ENTER.

4. Press ESC.

5. You are now in the Minicom terminal. Type AT and press ENTER. The screen should display OK

to verify the operation. Alternately, dial a phone number to verify line operation

6. To leave Minicom, press CTRL + A, and then press Z. 7. On the help menu, press X to exit.

Using the Modem to Call the Internet

Linux allows different graphic user in terfac es (GUI). In the follow ing steps , we’ll us e the Gnome
Desktop GUI and assume that the Internet Service Provider (ISP) you are calling assigns you the
Domain Name Service (DNS) and Internet Protocol (IP) addresses . For mor e in format ion on DNS
or IP, see the Linux OS owner’s manual or contact your ISP.

1. On the Task Bar at the bottom of the screen, select the Gnome Footprint.

2. Select Internet from the menu.

3. Select Dialup Configuration Tool.

4. Select Add, and then click Next.

5. Enter the connection name and phone number, and then click Next.

6. Enter your user name and password, and then click Next.

7. Select Normal ISP if your ISP is not listed, and then click Next.

8. Click Finish.

Multi-Tech Systems, Inc. MT5656ZDX User Guide 25

Calling the ISP

1. On the Task Bar at the bottom of the screen, select the Gnome Footprint.

2. Select Internet from the menu.

3. Select RH PPP Dialer.

4. Select the connection name you entered in step 5 of the previous section. 5.

5. Click OK.

That’s basically it. Linux can use different programs and desktops depending on who made the Linux
operating system and what version it is. The above procedures use the most commonly installed
components of Red Hat 6.2. More details can be found in the Linux OS owner’s manual.

To use the system for answering calls, Linux requires other programs to be installed, such as Mgetty,
Mgetty+Sendfax and others, depending what you require. Each vendor of Linux usually has
more than adequate information on installing these programs.

Appendix C – Installing a Modem in Linux

Multi-Tech Systems, Inc. MT5656ZDX User Guide 26

Appendix D – Upgrading the Modem

Appendix D – Upgrading the

Modem

Your modem is controlled by semi-permanent software, called firmware, which is stored in flash memory.
Firmware is nonvolatile; that is, it remains stored in memory when the modem is turned off. However, it can be
changed by either the manufacturer or the use

Since the firm
using the following procedures.

ware in your modem is stored in flash memory, you can upgrade it yourself in a few minutes by

Upgrade Overview

The upgrade procedure consists of the following steps, which are described in greater detail in the following
sections.

1. Identify the model number and firmware version of your modem.

2. Identify the current version of the firmware at the Multi-Tech Web site. If your modem already

has the current firmware, there is no need to update it.

3. Download the upgrade file for your modem.

4. Extract the firmware .HEX file and the appropriate flash upgrade program from the file you

downloaded.

5. Document and clear your stored parameters.

6. Upgrade the modem’s firmware using the .HEX file and the flash upgrade program.

7. Restore your parameters.

r.

Step 1: Identify the Modem Firmware

You must know the model number and firmware version of your Multi-Tech modem to know whether or not
you should update it.

1. Run your favorite terminal program. If you are using Windows 95, 98, 2000 or Windows NT, you

can use HyperTerminal. If you are using Windows 3.1, you can use Windows Terminal.

2. In the program’s terminal window, type AT&F. Even if you cannot see the AT&F command on

your screen, be sure to t y pe it co mp l e t e l y , a nd then p r e s s EN T E R . I f t h e mo d e m does no t
respond with OK, repeat the AT&F command.

3. Now type ATI3 and record your resu lts . The firmware version shou ld app ear first in th e
respo n se, whi ch should look similar to the following:

V2.300G-V90_2M_DLS

Step 2: Identify the Current Firmware Version

Identify the current version of the firmware at the Multi-Tech Web site. If your modem already has the current
firmware, there is no need to update it.

1. Using your favorite Web browser, go to

http://www.multitech.com/support/MultiModemZDX/firmware.asp.

2. Scroll down the table to your modem model number.

3. Look at the firmware version number for your modem.

4. If the firmware version number matches the firmware version number found in “Step 1: Identify the

Modem Firmware,” your modem has the current firmware version, and does not need to be
updated.

5. If the firmware version number is greater than the firmware version number found in “Step 1:
Identify the Modem Firmware,” your modem has an older firmware version.
Continue with “Step 3: Download the Upgrade File.”

Warning: The first digit of the new firmware must match the first digit of the old firmware, or the

modem may not work properly; e.g., if your current firmware version is 4.16, replace it only with

4.xx firmware, not 6.xx firmware.

Multi-Tech Systems, Inc. MT5656ZDX User Guide 27

Appendix D – Upgrading the Modem

Step 3: Download the Upgrade File

1. If you are not already at the MultiModemZDX firmware page of the Multi-Tech Web site, follow

the procedure in “Step 2: Identify the Current Firmware.”

2. Download the upgrade file for your modem by clicking its name, and save the file in a temporary

folder on your hard disk.

3. In the same section of the Web page, download the Flash Wizard utility for your op era ting
system by clicking it, and save it in the same folder.

Step 4: Extract the Upgrade Files

1. Install the Flash Wizard utility by double-clicking the file name in Windows Explorer.

2. Extract the upgrade files by double-clicking the file name. The extracted files include a .HEX

file, which contains the upgrade data, and a Readme file.

3. Copy the upgrade .S37 file into the Flash Wizard folder, which, in a default installation, is at

C:\Program

Files\MultiTech Systems\Flash Wizard\.

Step 5: Upgrade the Modem’s Firmware

Before you begin the following procedure, read the README.TXT file extracted from the upgrade archive file.
Note the file name for the boot code (e.g., 2MBPFL1 1 .S37) and the file name for the new firmware (e.g.,
BkQg300G.hex).

Warning: Never install an older version of firmware over a newer version. Doing so will destroy the Flash
PROM! If the Flash PROM is destroyed, the modem must be sent in for repair.

1. Run Flash Wizard by double-clicking its icon or file name, or by selecting it from the Start menu. The

Identifying Devices dialog box is displayed as Flash Wizard locates and identifies the devices
connected to your system.

Note: If the message ERROR: No valid devices detected is displayed, verify that the device is

powered on and that all cables are correctly and securely attached.

2. Click the modem to be upgraded, and then click Next to proceed.

3. Select the port to be upgraded from the Port list, select the appropriate .HEX file from the Hex

File list, and then click Next to continue.

Note: Do not use FLASHLDR.HEX. This file is used internally by Flash Wizard.

4. The Progress dialog box appears, showing a status bar that indicates the progress of the upgrade.

Caution: Any disruption of the program during this stage of the upgrade can cause you r modem to

become inoperable. Wait for the Next button to become active before proceeding.

5. When the flash upgrade is complete, the message Programming Complete appears. Click Next

to continue.

6. The Results dialog box appears next. Click Finish to exit Flash Wizard.

Step 6: Restore Your Parameters

Your modem has been updated. You can now open your terminal program to reprog ram your modem
parameters or to confirm the update by typing ATI3 in the terminal window and pressing Enter

.

Multi-Tech Systems, Inc. MT5656ZDX User Guide 28

Appendix E – Waste Electrical and Electronic Equipment Directive (WEEE)

Appendix E – Waste Electrical and

Electronic Equipment Directive

(WEEE)

Waste Electrical and Electronic Equipment (WEEE) Directive

The WEEE directive places an obligation on manufacturers, distributors and retailers to take-back electronic
products at the end of their useful life. A sister Directive, ROHS (Restriction of Hazardous Substances),
complements the WEEE Directive by banning the presence of specific hazardous substances in the products
at the design phase. The WEEE Directive covers all Multi-Tech products being sold into the EU as of August
13, 2005. Manufacturers, distributors and retailers are obliged to finance the costs of re covery from
municipal collection points, reuse, and recycling of specified percentages per the WEEE requirements.

Instructions for Disposal of WEEE by Users in the European Union

The symbol shown below is on the product or on its packaging which indicates that this product must not be
disposed of with other waste. Instead, it is the user’s responsibility to dispose of the user’s waste equipment
by handing it over to a designated collection point for the recycling of electrical and electronic waste
equipment. The separate collection and recycling of waste equipment at the time of disposal will help to
conserve natural resources and ensure that it is recycled in a manner that protects human health and the
environment. For more information about where you can drop off your waste equipment for recycling, please
contact your local city office, your household waste disposal service or the seller from whom you purchased
the product.

06/27/2005

Multi-Tech Systems, Inc. MT5656ZDX User Guide 29

Index

Index

C

Connecting the Modem ............................................ 8

D

Data Rates ............................................................... 6

Dial-Up Networking ................................................. 12

F

Front Panel ............................................................. 13

I

Internet servi ce provide r ........................................ 12

L

LED Indicators ........................................................ 13

M

Modem Driver ................................................... 11, 13

O

Ordering Replacement Parts .................................. 22

P

PhoneTools ............................................................ 11

R

Repair .................................................................... 21

Replacement Parts ................................................ 22

S

Safety Warnings ....................................................... 5

Send and Receive a Fax ....................................... 15

Ship Kit Contents ..................................................... 5

Surge Protector ........................................................ 9

T

Technical Specifications

Technical Support .................................................... 2

Troubleshooting ..................................................... 17

.............................................. 6

V

Vo i c e C o n ne c t i on s .............................................. 10

W

Warranty ................................................................ 21

Waste Electrical and Electronic Equipment (WEEE)

Directive ............................................................. 29

Multi-Tech Systems, Inc. MT5656ZDX User Guide 30