Multitech MultiMobile MT9234MU-CDC User Manual

MultiMobile™ USB

V.92 Portable USB Modem

MT9234MU-CDC

User Guide

Revision

Date

Description

A

03/05/10

New CDC build option initial release.

B

11/21/2011

Removed references to product CD

C

12/13/2012

Updated RoHS and other regulatory information.

D

12/18/2013

UL Translations

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]

MultiMobile USB User Guide
V.92 Portable USB Modem
MT9234MU

S000470C Rev. D

Copyright

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 © 2013 Multi-Tech Systems, Inc.

Multi-Tech Systems, Inc. makes no representations or warranty with respect to the contents hereof and specifically disclaims
any implied warranty of merchantability or fitness for any particular purpose. Furthermore, Multi-Tech Systems, Inc. reserves
the right to revise this publication and to make changes from time to time in the content hereof without obligation of Multi­Tech Systems, Inc. to notify any person or organization of such revisions or changes. Check Multi-Tech’s Web site for current
versions of product documentation.

Patents

This device is covered by one or more of the following patents: 6,031,867; 6,012,113; 6,009,082; 5,905,794; 5,864,560;
5,815,567; 5,815,503; 5,812,534; 5,809,068; 5,790,532; 5,764,628; 5,764,627; 5,754,589; 5,724,356; 5,673,268; 5,673,257;
5,644,594; 5,628,030; 5,619,508; 5,617,423; 5,600,649; 5,592,586; 5,577,041; 5,574,725; 5,559,793; 5,546,448; 5,546,395;
5,535,204; 5,500,859; 5,471,470; 5,463,616; 5,453,986; 5,452,289; 5,450,425; D353,598; 5,355,365; 5,309,562; 5,301,274.
Other patents pending.

World Headquarters

Multi-Tech Systems, Inc.
2205 Woodale Drive, Mounds View, Minnesota 55112
Phone: [phone] or 800-328-9717
Fax: [phone]
www.multitech.com

Contacting Multi-Tech Support

Online Support Portal: https://support.multitech.com

In order to better serve our customers, manage support requests and shorten resolution times, we have created the online web
portal allowing you to submit questions regarding Multi-Tech products directly to our technical support team. Get answers to
your most complex questions, ranging from implementation, troubleshooting, product configuration, firmware upgrades and
much more.
To create an account and submit a Support Case on the Portal, visit https://support.multitech.com.

Knowledge Base and Support Services: www.multitech.com/support.go

The Knowledge Base provides immediate answers to your questions and gives you access to support resolutions for all Multi­Tech products. Visit our support area on the website for other support services.

Technical Support

U.S. office hours are 9am – 5pm, CST

Warranty

Warranty information can be found at: http://www.multitech.com/warranty.go

2 MT9234MU-CDC User Guide

Chapter 1 – Product Description .........................................................................................................4

Features .......................................................................................................................................................... 4

Telecom Safety Warnings ................................................................................................................................ 4

Package Contents ............................................................................................................................................ 5

About AT Commands ...................................................................................................................................... 5

Technical Specifications .................................................................................................................................. 5

Chapter 2 – Installing the Modem .......................................................................................................7

Installing the Modem Driver ........................................................................................................................... 7

Installing the Modem in Windows 7 ............................................................................................................... 7

Installing the Modem in Windows Vista ....................................................................................................... 11

Installing the Modem in Windows XP and Server 2003 or 2008 ................................................................... 15

Configuring the Modem’s Country Code ....................................................................................................... 19

Using the Global Wizard Utility to Configure Country Code ......................................................................... 19

Using AT Commands to Configure Country Code .......................................................................................... 19

Chapter 3 – Operating the Modem ................................................................................................... 20

Front Panel Overview ................................................................................................................................... 20

Connecting to the Internet ............................................................................................................................ 20

Setting Up a Remote Node ............................................................................................................................ 20

Chapter 4 – Remotely Configuring the Modem.................................................................................. 21

Changing the Default Password and Escape Character .................................................................................. 21

Changing the Setup Password ....................................................................................................................... 21

Changing the Remote Escape Character ....................................................................................................... 21

Appendix A – Regulatory Information ............................................................................................... 23

FCC Part 15 Class B Statements ..................................................................................................................... 23

EMC Requirements for Industry Canada ....................................................................................................... 23

FCC Part 68 Telecom ..................................................................................................................................... 24

Canadian Limitations Notice ......................................................................................................................... 25

EMC, Safety, and R&TTE Directive Compliance ............................................................................................. 25

International Modem Restrictions ................................................................................................................ 26

New Zealand Telecom Warning Notice ......................................................................................................... 26

South African Notice ..................................................................................................................................... 27

Thailand Approval ......................................................................................................................................... 27

Brazil Regulatory Special Cable Requirement ................................................................................................ 27

Restriction of the Use of Hazardous Substances (RoHS) ................................................................................ 28

REACH Statement ......................................................................................................................................... 28

Waste Electrical and Electronic Equipment Statement .................................................................................. 29

WEEE Directive .............................................................................................................................................. 29

Instructions for Disposal of WEEE by Users in the European Union ............................................................. 29

Information on HS/TS Substances According to Chinese Standards .............................................................. 30

Information on HS/TS Substances According to Chinese Standards (in Chinese) ........................................... 31

Appendix B – ASCII Conversion ......................................................................................................... 32

Index ............................................................................................................................................... 33

MT9234MU-CDC User Guide 3

Command Buffer

40 characters

Diagnostics

Power-on self test, local analog & local digital loop, remote digital
loop.

LED Indicators

LEDs for Data, Carrier Detect, Off Hook, Terminal Ready

Intelligent Features

Fully AT command compatible; autodial, redial, repeat dial; pulse or
tone dial; dial pauses; auto answer; caller ID; EIA extended
automode; adaptive line probing; automatic symbol and carrier
frequency during start-up, retrain, and rate renegotiation; call
status display, auto-parity and data rate selections; keyboard­controlled modem options; non-volatile memory; on-screen
displays for modem option parameters; command lines of up to 40
characters each; help menus; remote configuration.

The MultiMobile USB V.92 Portable USB modem MT9234MU-CDC provides V.92/56K data rates, fax and
file transfer capabilities and a hot-swappable USB interface. This modem, weighing only 2 ounces, is
ideal for mobile users who want email and Internet access on the road. The MT9234MU-CDC modem
can also serve as the mobile user’s home office desktop modem.
This user’s guide helps you install, configure, test and use your modem.

Features

Telecom Safety Warnings

Before servicing, disconnect this product from its power source and telephone network. Also:

● Never install telephone wiring during a lightning storm.

● Never install a telephone jack in wet locations unless the jack is specifically designed for wet

locations.

● Use this product with UL and cUL listed computers only.

● 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 may be a remote risk of electrical shock

from lightning.

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

CAUTION: To reduce the risk of fire, use only 26 AWG or larger UL Listed or CSA Certified

telecommunication line cord.

Avertissements de sécurité télécom analogique

Avant de l'entretien, débrancher ce produit de son réseau d'alimentation et de téléphone. également:

● Ne jamais installer du câblage téléphonique pendant un orage électrique.

● Ne jamais installer de prises téléphoniques à des endroits mouillés à moins que la prise ne soit

conçue pour de tels emplacements.

● Utilisez ce produit avec UL et cUL ordinateurs répertoriés seulement.

4 MT9234MU-CDC User Guide

Chapter 1 – Product Description

Trade Name

MultiMobile™ USB

Model Number

MT9234MU

Data Rates

56K download speeds from digital V.92/V.90 servers;

33.6K upload and download speeds from non-V.92/V.90 servers and other client
modems

Fax Rates

33.6K and below

Standards:

Data
Error Correction
Data Compression
Fax
Video

V.92, V.90 enhanced, V.34 and below
V.42
V.44, V.42bis, MNP Class 5
V.34, Class 2.1 & 1.0, V.17, Group 3; Class 1 & 2, Error Correction Mode
V.80

Cables

1 USB series A
1 RJ-11

Operation

USB Port: 12 Mbps
Line Type: Dial-up

Physical Description

1.3” w x 1.0” h x 3.1” d; 2 oz

3.0 cm w x 2.5 cm h x 8.0 cm d; 62 g

Operating Environment

Operating Temperature: -31° to +167° F (-35° to 75° C)

UL listed at 60° C

Humidity Range: 25–85% non-condensing

Approvals

CE Mark
EMC: FCC Part 15 Class B, EN55024, EN55022 Class B, ICES-003 Class B
Safety: UL/cUL 60950-1, IEC 60950-1
Telecom: 47CFR Part 68, CS03, TBR21, other countries also included

● Ne jamais toucher fils ou des bornes téléphoniques non isolés à moins que la ligne téléphonique

n'ait été déconnectée au niveau de l'interface réseau.

● Faire preuve de prudence au moment d'installer ou de modifier des lignes téléphoniques.

● Éviter d'utiliser le téléphone pendant un orage électrique. Il peut y avoir un risque de choc

électrique causé par la foudre.

● N'utilisez pas un téléphone à proximité d'une fuite de gaz.

ATTENTION: Pour réduire les risques d’incendie, utiliser uniquement des conducteurs de télécommunications 26

AWG au de section supérleure.

Package Contents

● MT9234MU-CDC modem

● One RJ-11 cable

Inspect the contents for signs of any shipping damage. If damage is observed, do not power up (connect
to a USB port) the unit. Contact Multi-Tech’s Technical Support for advice.

About AT Commands

AT Commands for this product are published in a separate document. You can find this documentation
on the Multi-Tech website.

Technical Specifications

MT9234MU-CDC User Guide 5

Chapter 1 – Product Description

Power*

Sleep Mode Typical Maximum
Measured Volts 4.99 4.96 4.95
Current (AMPS) 0.099 0.130 0.172
Watts 0.494 0.645 0.851

Limited Warranty

2 years

* Multi-Tech Systems, Inc. recommends that you incorporate a 10% buffer into their power source when
determining product load.

6 Multi-Tech Systems, Inc. MT9234MU-CDC User Guide (S000470A)

Installing the Modem Driver

Before you begin, go to the Multi-Tech website and download the driver for your modem.

Installing the Modem in Windows 7

After connecting the MT9234MU-CDC to an available USB port, Windows displays a message that the
driver software was not successfully installed.

To install the driver software:

1. From the Windows Start button and select Control Panel.

2. Select the Hardware and Sound link.

3. In the Devices and Printers group, click Device Manager.

7 MT9234MU-CDC User Guide

Chapter 2 – Installing the Modem

4. In the list of devices, right-click on MT9234MU-CDC and select Update Driver Software.

8 MT9234MU-CDC User Guide

Chapter 2 – Installing the Modem

5. Click Browse my computer for driver software.

6. Click Browse and navigate to the area where you downloaded the driver.

7. Select the appropriate drivers for your device (either 34-bit or 64-bit) and click OK.

MT9234MU-CDC User Guide 9

Chapter 2 – Installing the Modem

8. Click Next to continue the installation.

9. A Windows Security window can appear, stating that the publisher cannot be verified. Click Install

this driver software anyway.

10. A transitory window appears, as the installation completes.

11. To finish installing, click Close.

Your modem is installed and ready to use.
After you have installed the modem, register the MT9234MU product. To do so, open an Internet

browser and go to the following address. Follow instructions at this site:

http://www.multitech.com/en_US/TOOLS/Forms/register/warranty.asp

10 MT9234MU-CDC User Guide

Chapter 2 – Installing the Modem

Installing the Modem in Windows Vista

1. Power up your computer.

2. If you have not already done so, connect the modem’s USB cable to a USB port on the computer and

connect the phone line between the modem and a telephone wall jack.

3. Windows detects that the new modem is present and starts the New Hardware wizard. Select the

Locate and install driver software (recommended) option.

Note: As you install, the Vista ‘User Account Control’ (hereafter referred to as the UAC) may prompt you. If so

click Continue to install.

MT9234MU-CDC User Guide 11

Chapter 2 – Installing the Modem

4. The New Hardware wizard asks if you want to search online for drivers. Select Don’t search online.

5. In the wizard pane that asks to you insert a disc, click I don’t have the disc. Show me other options.

Click Next.

12 MT9234MU-CDC User Guide

Chapter 2 – Installing the Modem

6. Navigate to the location where you downloaded the driver. And then select the desired driver.

7. A pop-up window for Windows Security asks if you want to install the device software from Multi-

Tech Systems Incorporated.

Click Install.

MT9234MU-CDC User Guide 13

Chapter 2 – Installing the Modem

8. Windows finishes the installation.

9. A window opens to tell you that you have successfully installed the software. Click Close.

After installing the modem and setting up Internet access, register the product. To do so, open an
Internet browser and go to the following address. Follow the instructions that appear at the site:

http://www.multitech.com/en_US/TOOLS/Forms/register/warranty.asp

14 MT9234MU-CDC User Guide

Chapter 2 – Installing the Modem

Installing the Modem in Windows XP and Server 2003 or 2008

These instructions describe how to install the modem to operate with the following operating systems:
Windows Server 2008, XP, or 2003.

The procedure in this section uses Windows XP as the operating system; the other operating systems
have similar windows.

1. Connect the USB cable between the MultiModem and the PC.

The Welcome to the Found New Hardware Wizard page opens. Select No, not this time. Then click Next.

2. The wizard helps you install the software for MT9234MU-CDC.

Select Install from a list or specific location (Advanced). Click Next.

MT9234MU-CDC User Guide 15

Chapter 2 – Installing the Modem

3. In the next wizard page, select Search for the best drive in these locations, and then ensure that the

item Include this location in the search is the only option selected.

4. Click Browse, and navigate to the area where you downloaded the driver.

5. Click Next.

6. The wizard searched for the driver, and displays the message Please wait while the wizard

searches...

16 MT9234MU-CDC User Guide

Chapter 2 – Installing the Modem

7. You may be prompted by the Windows Logo check. It is safe to continue (select to Continue

Anyway) as the installation file has passed certification testing for Windows Vista (all other

operating systems may display a certification warning).

8. The wizard displays the message Please wait while the wizard installs the software.

MT9234MU-CDC User Guide 17

Chapter 2 – Installing the Modem

9. At the Completing the Found New Hardware Wizard page click Finish.

After you have installed the product and set up Internet access, register the product. To do so, open an
Internet browser and go to the following address. Follow the instructions that appear at this site:

http://www.multitech.com/en_US/TOOLS/Forms/register/warranty.asp

18 MT9234MU-CDC User Guide

Chapter 2 – Installing the Modem

Configuring the Modem’s Country Code

Different countries have different requirements for how modems work. Therefore, before you use the
modem, configure it to match the defaults of the country in which you are using it. You can configure
the MT9234MU-CDC either manually using AT commands or with the Global Wizard.

Using the Global Wizard Utility to Configure Country Code

The Global Wizard configuration utility is recommended for computers running Windows Vista,
Windows Server 2008, XP, and 2003. The Global Wizard can configure your modem for a specific country
with just a few mouse clicks.

1. From the Multi-Tech website, download the Global Wizard executable file. You can find this file in

the zip file of the product’s resources.

2. Start the executable, then click Initial Setup and Country Selection. The Global Wizard dialog box

appears. Click Next.

3. View the Global Wizard as it searches for your modem and identifies it. Click Next.

4. Select the country in which the modem is to be used and then click Next.

5. Review your choice of country. If it is correct, click Next to configure the modem.

6. When Global Wizard announces that the parameters have been set, click Finish to exit.

Using AT Commands to Configure Country Code

If you are comfortable using AT commands, you can configure your modem using AT commands. You
must enter these commands in your communication program’s terminal window. If you do not have a
terminal program available, please use the Global Wizard Utility as outlined above.

To configure the modem for a specific country, execute the following AT commands:

1. Type AT%T19,0,nn (where nn represents the country code). Press Enter.

2. The modem will respond “OK.”

3. Type AT&F&W (this saves changes). Press Enter.

4. The modem will respond “OK.”

5. Type ATI9 (this verifies that country code has been chosen). Press Enter.

6. The modem displays the country code in decimal format followed by “OK.”

7. Check to be sure the code for your country is displayed.

If not, repeat procedure to correct.

An example of country, command, and result codes follows:

Example Country/Region AT Command Country Code

(Hexadecimal) (Decimal)

Euro/NAM* AT%T19,0,34 (default) 52

The Multi-Tech website includes a complete list of country/region codes:

http://www.multitech.com/en_US/PRODUCTS/Categories/Device_Networking/global_modems/confi
guration.asp#chart

Once you are on this page, click global modems. The Global Modem Country Approvals page displays.
On this page you can view approvals, configuration strings and responses by country and product.

MT9234MU-CDC User Guide 19

Data. The Data LED flashes when the modem is transmitting/receiving data
to/from another modem.

[CD] Carrier Detect. The CD LED 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. The OH LED lights when the modem is off-hook, which occurs
when the modem is dialing, online, or answering a call. The LED flashes when
the modem pulse-dials.

[TR] Terminal Ready. The TR LED lights when Windows detects and initializes
the modem.

Front Panel Overview

The MT9234MU-CDC has 4 LEDs on the front panel indicating status, configuration, and activity:

Connecting to the Internet

To use the modem to access the Internet, you must establish a dial-up account with an Internet service
provider (ISP). To locate an ISP near you, refer to a local directory or computer publication. Ask your ISP
to give you the following information:

● User name (also called user ID)

● Password

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

● Host name and domain name

● Domain Name Server (DNS) server address

If you use the Internet for e-mail and newsgroups, ask the ISP to also provide the following information:

● E-mail or POP mail address

● POP server address

● Mail or SMTP address

● News or NNT server address

Setting Up a Remote Node

Before connecting to the Internet, set up a remote-node client program on your computer to make the
connection. Most web browsers can automatically open this connection. For instructions on how to set

up this connection, consult your ISP or your operating system’s online help or printed documentation.

Many ISPs provide a program that installs and configures this connection automatically for you.

MT9234MU-CDC User Guide 20

You can use a network management tool to configure the modem from anywhere in your network from
one location. You can use the modem’s password and then issue AT commands to a remote
MT9234MU-CDC modem for maintenance or troubleshooting as if you were on site with the modem.

To remotely configure a modem:

1. Establish a data connection with a remote MT9234MU-CDC modem.

2. Send three remote configuration escape characters followed by AT and the setup password, and

press Enter.

Example: %%%ATMTSMODEM. You have four tries to enter the correct password before being
disconnected. If the password is correct, the remote modem responds with OK.

3. You can now send AT commands to configure the remote modem.

4. When you have finished configuring the remote modem, save the new configuration by typing

AT&W0, and pressing Enter.

5. Type ATO and press Enter to exit remote configuration. You can then break the connection in the

normal way.

These steps are valid regardless of whether the connection is established by the local or the remote
Multi-Tech modem.

CAUTION: If you hang up while you are in remote configuration mode, the remote modem can lock up.

Changing the Default Password and Escape Character

Multi-Tech modems are shipped with a default setup password (MTSMODEM). Because anyone who has

an owner’s manual knows the default setup password, change the password and the remote

configuration escape character.

Changing the Setup Password

1. Open a data communications program such as HyperTerminal.

2. To change the password, type AT#S=xxxxxxxx, where xxxxxxxx stands for the password, and press

Enter. The password can include any keyboard character, and must be one to eight characters long.
The modem responds with OK.

3. The new password is saved automatically. You can now either enter more AT commands or exit the

data communications program. The next time you remotely configure the modem you must use the
new setup password.

Note: You can only change the setup password locally; you cannot do it remotely. Also, passwords are case
sensitive. The next time you enter the password, it must be in the same case as you set it up.

Changing the Remote Escape Character

To increase security, you can change a remote modem’s remote configuration escape character. The
remote configuration escape character is stored in register S9. The factory default is 37, which is the
ASCII code for the percent character (%). For ASCII code characters, refer to Appendix D.

21 MT9234MU-CDC User Guide

Chapter 4 – Remotely Configuring the Modem

Setting S9 to 0 (zero) disables remote configuration entirely—but if you do this remotely, you won’t be
able to change it back remotely.

1. Establish a remote configuration link with the remote modem.

2. Type ATS9=n, where n is the ASCII code for the new remote configuration escape character. Press

Enter.

3. To save the new value, type AT&W and press Enter.

4. Type ATO<CR> to exit remote configuration.

22 Multi-Tech Systems, Inc. MT9234MU-CDC User Guide (S000470A)

FCC Part 15 Class B Statements

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. This equipment 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.

● Connect 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.

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.

EMC Requirements for 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.

This device complies with Industry Canada RSS Appliance radio exempt from licensing. The operation is
permitted for the following two conditions:

1. the device may not cause harmful interference, and

2. the user of the device must accept any interference suffered, even if the interference is likely to

jeopardize the operation.

Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de
licence. L'exploitation est autorisée aux deux conditions suivantes:

1. l'appareil ne doit pas produire de brouillage, et

2. l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage

est susceptible d'en compromettre le fonctionnement.

MT9234MU-CDC User Guide 23

Appendix A – Regulatory Information

FCC Part 68 Telecom

1. This equipment complies with Part 68 of the 47 CFR rules and the requirements adopted by the

ACTA. Located on this equipment is a label that contains, among other information, the registration
number and Ringer Equivalence Number (REN) for this equipment or a product identifier in the
format:

For current products: US:AAAEQ##Txxxx.

For legacy products: AU7USA-xxxxx-xx-x

If requested, this number must be provided to the telephone company.

2. A plug and jack used to connect this equipment to the premises wiring and telephone network must

comply with the applicable 47 CFR Part 68 rules and requirements adopted by the ACTA. It’s
designed to be connected to a compatible modular jack that is also compliant.

3. The Ringer Equivalence Number (REN) is used to determine the number of devices that may be

connected to a telephone line. Excessive RENs on a telephone line may result in the devices not
ringing in response to an incoming call. In most but not all areas, the sum of RENs should not exceed
five (5.0). To be certain of the number of devices that may be connected to a line, as determined by
the total RENs, contact the local telephone company. For products approved after July 23, 2001, the
REN for this product is part of the product identifier that has the format US:AAAEQ##Txxxx. The
digits represented by ## are the REN without a decimal point (e.g., 03 is a REN of 0.3). For earlier
products, the REN is separately shown on the label.

4. 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 isn't
practical, the telephone company will notify the customer 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.

5. 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 to maintain uninterrupted
service.

6. If trouble is experienced with this equipment, please contact Multi-Tech Systems, Inc. at the address

shown below for details of how to have the repairs made. If the equipment is causing harm to the
telephone network, the telephone company may request that you disconnect the equipment until
the problem is resolved.

7. Connection to party line service is subject to state tariffs. Contact the state public utility commission,

public service commission or corporation commission for information.

8. No repairs are to be made by you. Repairs are to be made only by Multi-Tech Systems or its

licensees. Unauthorized repairs void registration and warranty.

9. If your home has specially wired alarm equipment connected to the telephone line, ensure the

installation of this equipment does not disable your alarm equipment. If you have questions about
what will disable alarm equipment, consult your telephone company or a qualified installer.

10. Connection to party line service is subject to state tariffs. Contact the state public utility commission,

public service commission or corporation commission for information.

11. This equipment is hearing aid compatible.

12. Manufacturing Information:

24 Multi-Tech Systems, Inc. MT9234MU-CDC User Guide (S000470A)

Appendix A – Regulatory Information

Manufacturer: Multi-Tech Systems, Inc.
Trade Name MultiMobile USB
Model Number: MT9234MU
Registration Number: AU7MM04B9234MU
Service Center in USA: Multi-Tech Systems, Inc.

2205 Woodale Drive
Mounds View, MN 55112
U.S.A.
[phone]
[phone] Fax

Canadian Limitations Notice

Notice: This equipment meets the applicable Industry Canada Terminal Equipment Technical
Specifications. This is confirmed by the registration number. The abbreviation, IC, before the registration
number signifies that registration was performed based on a Declaration of Conformity indicating that
Industry Canada technical specifications were met. It does not imply that Industry Canada approved the
equipment.

Notice: The REN assigned to each terminal equipment 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 five.

Restrictions concernant le raccordement de matériel

Avis: Le présent matériel est conforme aux spécifications techniques d’Industrie Canada applicables au

matériel terminal. Cette conformité est confirmée par le numéro d'enregistrement. Le sigle IC, placé
devant le numéro d'enregistrement, signifie que l’enregistrement s’est effectué conformément à une
déclaration de conformité et indique que les spécifications techniques d'Industrie Canada ont été
respectées. Il n’implique pas qu’Industrie Canada a approuvé le matériel.

Avis: L'IES assigné à chaque dispositif terminal indique le nombre maximal de terminaux qui peuvent
être raccordés à une interface téléphonique. La terminaison d'une interface peut consister en une
combinaison quelconque de dispositifs, à la seule condition que la somme d'indices d'équivalence de la
sonnerie de tous les dispositifs n'excède pas 5.

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 2004/108/EC of 15 December 2004 on the approximation of the laws of Member States

relating to electromagnetic compatibility;

and

 Council Directive 2006/95/EC of 12 December 2006 on the harmonization of the laws of Member States

relating to electrical equipment designed for use within certain voltage limits;

and

 Council Directive 1999/5/EC of 9 March 1999 on radio equipment and telecommunications terminal

equipment and the mutual recognition of their conformity.

MT9234MU-CDC User Guide 25

Appendix A – Regulatory Information

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.

New Zealand Telecom Warning Notice

1. The grant of a Telepermit for any item of terminal equipment indicates only that Telecom has

accepted that the item complies with minimum conditions for connection to its network. It indicates
no endorsement of the product by Telecom, nor does it provide any sort of warranty. Above all, it
provides no assurance that any item will work correctly in all respects with another item of
Telepermitted equipment of a different make or model, nor does it imply that any product is
compatible with all of Telecom’s network services.

This equipment is not capable under all operating conditions of correct operation at the higher speed which it
is designated. 33.6 kbps and 56 kbps connections are likely to be restricted to lower bit rates when connected
to some PSTN implementations. Telecom will accept no responsibility should difficulties arise in such
circumstances.

2. Immediately disconnect this equipment should it become physically damaged, and arrange for its

disposal or repair.

3. This modem shall not be used in any manner which could constitute a nuisance to other Telecom

customers.

4. This device is equipped with pulse dialing, while the Telecom standard is DTMF tone dialing. There is

no guarantee that Telecom lines will always continue to support pulse dialing.

Use of pulse dialing, when this equipment is connected to the same line as other equipment, may give rise to

‘bell tinkle’ or noise and may also cause a false answer condition. Should such problems occur, the user should

not contact the Telecom Faults Service.

The preferred method of dialing is to use DTMF tones, as this is faster than pulse (decadic) dialing and is
readily available on almost all New Zealand telephone exchanges.

5. Warning Notice: No ‘111’ or other calls can be made from this device during a mains power failure.

6. This equipment may not provide for the effective hand-over of a call to another device connected to

the same line.

7. Some parameters required for compliance with Telecom’s Telepermit requirements are dependent

on the equipment (PC) associated with this device. The associated equipment shall be set to operate
within the following limits for compliance with Telecom’s Specifications:

For repeat calls to the same number:

● There shall be no more than 10 call attempts to the same number within any 30-minute period

for any single manual call initiation, and

● The equipment shall go on-hook for a period of not less than 30 seconds between the end of

one attempt and the beginning of the next attempt.

For automatic calls to different numbers:

● The equipment shall be set to ensure that automatic calls to different numbers are spaced such

that there is no less than 5 seconds between the end of one call attempt and the beginning of
another.

26 Multi-Tech Systems, Inc. MT9234MU-CDC User Guide (S000470A)

Appendix A – Regulatory Information

For automatically answered incoming calls:

● The equipment shall be set to ensure that calls are answered between 3 and 30 seconds of

receipt of ringing.

8. For correct operation, total of the RNs of all devices connected to a single line at any time should

not exceed 5.

South African Notice

This modem must be used in conjunction with an approved surge protection device.

Thailand Approval

Translation in Thai
“This telecom device and equipment is conform to technical standard no….”

or

“This telecom device and equipment is conform to requirement to NTC”

“   .........”

or
“   .”

Brazil Regulatory Special Cable Requirement

Model: MT9234MU – special cable needed.

Attention:

A special phone cable is required for regulatory compliance.
Um cabo especial para telefone é requerido para a conformidade regulatória.

MT9234MU-CDC User Guide 27

Appendix A – Regulatory Information

Restriction of the Use of Hazardous Substances (RoHS)

Multi-Tech Systems, Inc.
Certificate of Compliance
2011/65/EU

Multi-Tech Systems confirms that its embedded products comply with the chemical concentration
limitations set forth in the directive 2011/65/EU of the European Parliament (Restriction of the use of
certain Hazardous Substances in electrical and electronic equipment - RoHS)

These Multi-Tech products do not contain the following banned chemicals1:

● Lead, [Pb] < 1000 PPM

● Mercury, [Hg] < 1000 PPM

● Hexavalent Chromium, [Cr+6] < 1000 PPM

● Cadmium, [Cd] < 100 PPM

● Polybrominated Biphenyl, [PBB] < 1000 PPM

● Polybrominated Diphenyl Ether, [PBDE] < 1000 PPM

Environmental considerations:

● Moisture Sensitivity Level (MSL) =1

● Maximum Soldering temperature = 260C (in SMT reflow oven)

1

Lead usage in some components is exempted by the following RoHS annex, therefore higher lead

concentration would be found in some modules (>1000 PPM);

–Resistors containing lead in a glass or ceramic matrix compound.

REACH Statement

Registration of Substances:
After careful review of the legislation and specifically the definition of an “article” as defined in EC

Regulation 1907/2006, Title II, Chapter 1, Article 7.1(a)(b), it is our current view Multi-Tech Systems, Inc.
products would be considered as “articles”. In light of the definition in § 7.1(b) which requires
registration of an article only if it contains a regulated substance that “is intended to be released under
normal or reasonable foreseeable conditions of use,” our analysis is that Multi-Tech Systems, Inc.
products constitute nonregisterable articles for their intended and anticipated use.

Substances of Very High Concern (SVHC)
Per the candidate list of Substances of Very high Concern (SVHC) published October 28, 2008 we have

reviewed these substances and certify the Multi-Tech Systems, Inc. products are compliant per the EU
“REACH” requirements of less than 0.1% (w/w) for each substance. If new SVHC candidates are
published by the European Chemicals Agency, and relevant substances have been confirmed, that
exceeds greater than 0.1% (w/w), Multi-Tech Systems, Inc. will provide updated compliance status.

Multi-Tech Systems, Inc. also declares it has been duly diligent in ensuring that the products supplied are
compliant through a formalized process which includes collection and validation of materials
declarations and selective materials analysis where appropriate. This data is controlled as a part of a
formal quality system and will be made available upon request.

28 Multi-Tech Systems, Inc. MT9234MU-CDC User Guide (S000470A)

Appendix A – Regulatory Information

Waste Electrical and Electronic Equipment Statement

WEEE Directive

The WEEE Directive places an obligation on EU-based manufacturers, distributors, retailers, and
importers to take-back electronics 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 Multi­Tech products imported into the EU as of August 13, 2005. EU-based manufacturers, distributors,
retailers and importers are obliged to finance the costs of recovery 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 their waste

equipment by handing it over to a designated collection point for the recycling of waste electrical and
electronic equipment. The separate collection and recycling of your 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
where you purchased the product.

July, 2005

MT9234MU-CDC User Guide 29

Appendix A – Regulatory Information

Name of the

Component

Hazardous/Toxic Substance/Elements

Lead

(PB)

Mercury

(Hg)

Cadmium

(CD)

Hexavalent

Chromium

(CR6+)

Polybrominated

Biphenyl

(PBB)

Polybrominated

Diphenyl Ether

(PBDE)

Printed Circuit Boards

O O O O O

O

Resistors

X O O O O

O

Capacitors

X O O O O

O

Ferrite Beads

O O O O O

O

Relays/Opticals

O O O O O

O

ICs

O O O O O

O

Diodes/ Transistors

O O O O O

O

Oscillators and Crystals

X O O O O

O

Regulator

O O O O O

O

Voltage Sensor

O O O O O

O

Transformer

O O O O O

O

Speaker

O O O O O

O

Connectors

O O O O O

O

LEDs

O O O O O

O

Screws, Nuts, and other
Hardware

X O O O O

O

AC-DC Power Supplies

O O O O O

O

Software /
Documentation CDs

O O O O O

O

Booklets and Paperwork

O O O O O

O

Chassis

O O O O O

O

Information on HS/TS Substances According to Chinese
Standards

In accordance with China’s Administrative Measures on the Control of Pollution Caused by Electronic
Information Products (EIP) # 39, also known as China RoHS, the following information is provided
regarding the names and concentration levels of Toxic Substances (TS) or Hazardous Substances (HS)
which may be contained in Multi-Tech Systems Inc. products relative to the EIP standards set by China’s
Ministry of Information Industry (MII).

X Represents that the concentration of such hazardous/toxic substance in all the units of

homogeneous material of such component is higher than the SJ/Txxx-2006
Requirements for Concentration Limits.

O Represents that no such substances are used or that the concentration is within the

aforementioned limits.

30 MT9234MU-CDC User Guide

Appendix A – Regulatory Information

成分名称

有害/有毒物质/元素

铅

(PB)

汞

(Hg) 镉 (CD)

六价铬

(CR6+)

多溴联苯

(PBB)

多溴二苯醚

(PBDE)

印刷电路板

O O O O O

O

电阻器

X O O O O

O

电容器

X O O O O

O

铁氧体磁环

O O O O O

O

继电器/光学部件

O O O O O

O

IC

O O O O O

O

二极管/晶体管

O O O O O

O

振荡器和晶振

X O O O O

O

调节器

O O O O O

O

电压传感器

O O O O O

O

变压器

O O O O O

O

扬声器

O O O O O

O

连接器

O O O O O

O

LED

O O O O O

O

螺丝、螺母以及其它五
金件

X O O O O

O

交流-直流电源

O O O O O

O

软件/文档 CD

O O O O O

O

手册和纸页

O O O O O

O

底盘

O O O O O

O

Information on HS/TS Substances According to Chinese
Standards (in Chinese)

依照中国标准的有毒有害物质信息

根据中华人民共和国信息产业部 (MII) 制定的电子信息产品 (EIP) 标准－中华人民共和国《电子信
息产品污染控制管理办法》（第 39 号），也称作中国 RoHS，下表列出了 Multi-Tech Systems, Inc.
产品中可能含有的有毒物质 (TS) 或有害物质 (HS) 的名称及含量水平方面的信息。

X 表示所有使用类似材料的设备中有害/有毒物质的含量水平高于 SJ/Txxx-2006 限量

要求。

O 表示不含该物质或者该物质的含量水平在上述限量要求之内。

MT9234MU-CDC User Guide 31

ASCII Conversion Chart

CTRL CODE HEX DEC CODE HEX DEC CODE HEX DEC CODE HEX DEC

@ NUL 00 0 SP 20 32 @ 40 64 ` 60 96
A SOH 01 1 ! 21 33 A 41 65 a 61 97
B STX 02 2 " 22 34 B 42 66 b 62 98
C ETX 03 3 # 23 35 C 43 67 c 63 99
D EOT 04 4 $ 24 36 D 44 68 d 64 100
E ENQ 05 5 % 25 37 E 45 69 e 65 101
F ACK 06 6 & 26 38 F 46 70 f 66 102
G BEL 07 7 ' 27 39 G 47 71 g 67 103
H BS 08 8 ( 28 40 H 48 72 h 68 104
I HT 09 9 ) 29 41 I 49 73 i 69 105
J LF 0A 10 * 2A 42 J 4A 74 j 6A 106
K VT 0B 11 + 2B 43 K 4B 75 k 6B 107
L FF 0C 12 , 2C 44 L 4C 76 l 6C 108
M CR 0D 13 - 2D 45 M 4D 77 m 6D 109
N SO 0E 14 . 2E 46 N 4E 78 n 6E 110
O SI 0F 15 / 2F 47 O 4F 79 o 6F 111
P DLE 10 16 0 30 48 P 50 80 p 70 112
Q DC1 11 17 1 31 49 Q 51 81 q 71 113
R DC2 12 18 2 32 50 R 52 82 r 72 114
S DC3 13 19 3 33 51 S 53 83 s 73 115
T DC4 14 20 4 34 52 T 54 84 t 74 116
U NAK 15 21 5 35 53 U 55 85 u 75 117
V SYN 16 22 6 36 54 V 56 86 v 76 118
W ETB 17 23 7 37 55 W 57 87 w 77 119
X CAN 18 24 8 38 56 X 58 88 x 78 120
Y EM 19 25 9 39 57 Y 59 89 y 79 121
Z SUB 1A 26 : 3A 58 Z 5A 90 z 7A 122
[ ESC 1B 27 ; 3B 59 [ 5B 91 { 7B 123
\ FS 1C 28 < 3C 60 \ 5C 92 | 7C 124
] GS 1D 29 = 3D 61 ] 5D 93 } 7D 125
^ RS 1E 30 > 3E 62 ^ 5E 94 ~ 7E 126
_ US 1F 31 ? 3F 63 _ 5F 95 DEL 7F 127

NUL Null, or all zeros VT Vertical Tab SYN Sync.
SOH Start of Header FF Form Feed ETB End Transmission Block
STX Start of Text CR Carriage Return CAN Cancel
ETX End of Text SO Shift Out EM End of Medium
EOT End of Transmission SI Shift In SUB Substitute
ENQ Enquiry DLE Data Link Escape ESC Escape
ACK Acknowledge DC1 Device Control 1 FS File Separator
BEL Bell or Alarm DC2 Device Control 2 GS Group Separator
BS Backspace DC3 Device Control 3 RS Record Separator
HT Horizontal Tab DC4 Device Control 4 US Unit Separator
LF Line Feed NAK Negative Acknowledge DEL Delete

MT9234MU-CDC User Guide 32

A

AT Commands ............................................................ 5

C

Carrier detect LED .................................................... 20

China’s Administrative Measures on the Control of

Pollution ............................................................... 30

D

Data LED .................................................................. 20

E

EMC, Safety, and R&TTE Directive Compliance ....... 25

L

LED indicators .......................................................... 20

M

MT9234MU

Product description ................................................ 4

O

Off-Hook LED ........................................................... 20

R

REACH Statement .................................................... 28

Remote configuration .............................................. 21

escape character .................................................. 21

Remote node operation .......................................... 20

RoHS Compliance ..................................................... 28

S

Servicing your modem ............................................. 24

S-registers S9 ........................................................... 21

T

Terminal ready LED .................................................. 20

W

WEEE Directive ........................................................ 29

Windows 7 Driver Installation ................................... 7

Windows Vista Driver Installation ........................... 11

33 MT9234MU-CDC User Guide