Multitech MT9234MU-CDC-XR User manual

MultiMobile™USB
V.92 Portable USB Modem
MT9234MU-CDC-XR
User Guide

Copyright and Support Information
2 MT9234MU-CDC-XR User Guide
MultiMobile USB User Guide
V.92 Portable USB Modem
MT9234MU-CDC-XR
S000525C Rev. C
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 © 2012 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 Multi-Tech Systems, Inc. to notify any
person or organization of such revisions or changes. Check Multi-Tech’s Web site or product CD for current versions of our product
documentation.
Revision
Date
Description
A
02/01/12
Initial release.
B
04/26/12
Updated power values.
C
01/03/13
Updated Brazil cable, RoHS, and other regulatory information.
Patents
This device is covered by one or more of the following patents: 6,031,867; 6,012,113; 6,009,082; 5,905,794; 5,864,560; 5,815,567;
5,815,503; 5,812,534; 5,809,068; 5,790,532; 5,764,628; 5,764,627; 5,754,589; 5,724,356; 5,673,268; 5,673,257; 5,644,594; 5,628,030;
5,619,508; 5,617,423; 5,600,649; 5,592,586; 5,577,041; 5,574,725; 5,559,793; 5,546,448; 5,546,395; 5,535,204; 5,500,859; 5,471,470;
5,463,616; 5,453,986; 5,452,289; 5,450,425; D353,598; 5,355,365; 5,309,562; 5,301,274. Other patents pending.
Trademarks
Multi-Tech and the Multi-Tech logo are registered trademarks of Multi-Tech Systems, Inc. MultiMobile is a trademark of Multi-Tech. All
other brand and product names mentioned in this publication are trademarks or registered trademarks of their respective companies.
World Headquarters
Multi-Tech Systems, Inc.
2205 Woodale Drive
Mounds View, Minnesota 55112
Phone: [phone] or 800-328-9717
Fax: [phone]
Internet Address: HUhttp://www.multitech.com
Contacting Multi-Tech Support
To better serve our customers, manage support requests and shorten resolution times, we have created the online web portal that lets
you 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 support.multitech.com
Online Web Portal https://support.multitech.com/
The Knowledge Base provides immediate answers to your questions and gives you access to support resolutions for all Multi-Tech
products. Visit our support area on the website for other support services.
Knowledge Base and Support Services www.multitech.com/en_US/SUPPORT
Technical Support
Business Hours: M-F, 9am to 5pm CST
51BCountry
By Email
By Phone
Europe, Middle East, Africa:
[email protected]
+(44) 118 959 7774
U.S., Canada, all others:
[email protected]
[phone] or [phone]
Warranty
To read the warranty statement for your product, please visit: HUhttp://www.multitech.com/en_US/COMPANY/Policies/warranty/UH

Multi-Tech Systems, Inc. MT9234MU User Guide 3
Contents
Chapter 1 –Product Overview........................................................................................................................4
Features........................................................................................................................................................................4
Telecom Safety Warnings .............................................................................................................................................4
Shipping Package Contents ...........................................................................................................................................5
Technical Specifications ................................................................................................................................................5
AT Commands...............................................................................................................................................................5
Chapter 2 –Installing the Modem...................................................................................................................6
Connecting the Modem to Your System........................................................................................................................6
Installing the Modem Driver .........................................................................................................................................6
Configuring the Modem for Your Country...................................................................................................................14
Chapter 3 –Operating the Modem ...............................................................................................................16
Front Panel .................................................................................................................................................................16
Connecting to the Internet..........................................................................................................................................16
Chapter 4 –Remotely Configuring Modems..................................................................................................17
Changing the Setup Password.....................................................................................................................................17
Changing the Remote Escape Character......................................................................................................................17
Appendix A –Regulatory Information...........................................................................................................18
FCC Part 15 Class B Statements...................................................................................................................................18
FCC Part 68 Telecom ...................................................................................................................................................18
Canadian Limitations Notice .......................................................................................................................................20
EMC, Safety, and R&TTE Directive Compliance ........................................................................................................... 20
Waste Electrical and Electronic Equipment Statement................................................................................................22
Restriction of the Use of Hazardous Substances (RoHS)..............................................................................................23
Information on HS/TS Substances According to Chinese Standards ............................................................................24
Information on HS/TS Substances According to Chinese Standards (in Chinese)......................................................... 25
Appendix B –ASCII Conversion.....................................................................................................................26
ASCII Conversion Chart ...............................................................................................................................................26
Index ...........................................................................................................................................................27

4 MT9234MU-CDC-XR User Guide
Chapter 1 Product Overview
The MultiMobile USB V.92 Portable USB modem MT9234MU-CDC-XR 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-XR modem can also serve as the mobile user’s home office
desktop modem.
This user’s guide explains how to install, configure, test and use your modem.
Features
Command Buffer
40 characters
Diagnostics
Power-on self test, local analog and 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; keyboard-controlled modem options; non-volatile
memory; on-screen displays for modem option parameters; command lines of up to 40
characters each; help menus; remote configuration.
Telecom Safety Warnings
●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.
●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 (other than a cordless type) 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.
●To reduce the risk of fire, use only 26 AWG or larger telecommunication line cord.
●This product must be disconnected from the telephone network interface when servicing.

Chapter 1 –Product Overview
MT9234MU-CDC-XR User Guide 5
Shipping Package Contents
●MT9234MU-CDC-XR modem
●One RJ-11 cable
Inspect the contents for signs of any shipping damage. If damage is observed, do not power up the unit. Contact Multi-
Tech’s Technical Support for advice.
Technical Specifications
Trade Name
MultiMobile™ USB
Model
MT9234MU-CDC-XR
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
V.92, V.90 enhanced, V.34 and below
Error Correction
V.42
Data Compression
V.44, V.42bis, MNP Class 5
Fax
V.34, Class 2.1 & 1.0, V.17, Group 3; Class 1 & 2, Error Correction Mode
Cables
1 USB series A
1 RJ-11
Operation
USB Port: 12M bps
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
Power*
Sleep Mode Typical Maximum
Measured Volts 5.01 5.01 5.01
Current (AMPS) 0.099 0.133 0.178
Watts 0.494 0.665 0.890
Limited Warranty
2 years
* Multi-Tech Systems, Inc. recommends that you incorporate a 10% buffer into their power source when determining
product load.
AT Commands
AT Commands for this product are published in a separate document. You can download this document from the Multi-
Tech website.

6 MT9234MU-CDC-XR User Guide
Chapter 2 Installing the Modem
This chapter explains how to install your modem. Before you begin, go to the Multi-Tech website and download the driver
for your modem.
Connecting the Modem to Your System
Connect the MT9234MU to your computer’s USB port and connect the telephone line to your MT9234MU and a telephone
wall jack.
Connecting the USB Cable
Plug the USB cable connector on the modem into a USB port connector on your computer.
Connecting the Phone Line
Plug one end of the phone cable into the modem’s jack, and the other end into a phone line wall jack.
Note: The Federal Communications Commission (FCC), and Industry Canada impose certain restrictions on
equipment connected to public telephone systems. See Appendix A for more information.
Installing the Modem Driver
Installing the MT9234MU-CDC-XR 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. The Found New Hardware window opens. Click Locate and install
driver software.

Chapter 2 –Installing the Modem
MT9234MU-CDC-XR User Guide 7
4. The window, User Account Control Windows needs your permission to continue, opens. Click Continue.
5. The window, Allow Windows to search online for driver software for your unknown device, opens. Click Don’t Search
Online.
6. The window, Windows couldn’t find driver software for your device, window opens. Click Browse my computer for
driver software (advanced).
7. The Browse for driver software on your computer window opens. Click Browse.

Chapter 2 –Installing the Modem
8 MT9234MU-CDC-XR User Guide
In the window that opens, navigate to location where you stored the driver that you downloaded from the Multi-Tech
website. Click OK.
8. You return to the window, Windows couldn’t find driver software for your device. Click Next.
9. When the window, Windows can’t verify the publisher of this driver software, opens click Install this driver anyway.
10. A progress window appears while the driver is being installed.

Chapter 2 –Installing the Modem
MT9234MU-CDC-XR User Guide 9
11. After the driver is installed the window, The software for this device has been successfully installed, opens. Click Close.
After you install the driver, test the operation of the modem. To do so, register the modem by going to the following
website:
http://www.multitech.com/register
Installing the MT9234MU-CDC-XR in Windows Server 2008, XP, 2003
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 of the modem into a USB port on the PC.
2. In some situations the operating system might display a wizard pane with the message: Can Windows connect to
Windows Update to search for software? Select No, not this time. Click Next.
3. The Welcome to Found New Hardware Wizard pane opens. Click Install from a list or specific location (Advanced),and
then click Next.

Chapter 2 –Installing the Modem
10 MT9234MU-CDC-XR User Guide
4. The pane Please choose your search and installation options opens. Select the Search for the best driver in these
locations radio button. Then check the Include this location in the search checkbox.
5. Select Include this location in the search. Then click Browse and navigate to the area where you stored the driver that
you downloaded from the Multi-Tech website.
6. When the proper location appears in the field on this pane, click Next.
7. The pane Please wait while the wizard searches… appears.
8. If a warning appears for Windows logo testing, click Continue Anyway.

Chapter 2 –Installing the Modem
MT9234MU-CDC-XR User Guide 11
9. The message Please wait while the wizard installs the software appears.
10. At the Completing the Found New Hardware Wizard pane, click Finish.
After the installation is complete, test the operation of the MT9234MU by registering it. Open an Internet browser, go
to the following location, and follow the on-line instructions:
Uhttp://www.multitech.com/register

Chapter 2 –Installing the Modem
12 MT9234MU-CDC-XR User Guide
Installing the MT9234MU-CDC-XR in Windows 7
1. Connect the modem’s cable to an available USB port. Windows 7 reports that the driver software was not successfully
installed.
2. To point Windows 7 to the drivers, from the Windows Start button select Control Panel.
Left-click the Hardware and Sound link.
3. In the Devices and Printers group, click Device Manger.
4. A list of devices appears. Look for other devices Unknown Device. Right click on unknown device and select Update
Driver Software.
5. In the window that appears, click Browse my computer for driver software.

Chapter 2 –Installing the Modem
MT9234MU-CDC-XR User Guide 13
6. In the next window, click Browse, then navigate to the location where you stored the driver that you downloaded from
the Multi-Tech website. Select the driver, and click Next.
7. At this point you may see a Windows Security window stating that the publisher cannot be verified –click Install this
driver software anyway.
A progress window appears, to show that the driver is being installed.
8. Click Close on the last pane.

Chapter 2 –Installing the Modem
14 MT9234MU-CDC-XR User Guide
Your modem is installed and ready to use.
After the installation is completed, test the operation of the MT9234MU by registering it. Open a browser, go to the
following address and follow the on-line instructions: Uhttp://www.multitech.com/register
Configuring the Modem for Your Country
Different countries have different requirements for how modems must function. Therefore, before you use the modem,
you must configure it to match the defaults of the country in which you are using it. You can configure the modem manually
using AT commands or with the Global Wizard. Both methods are described in the sections that follow.
Installing and Using the Global Wizard to Configure Country Code
This section describes how to install the Global Wizard program, and then how to use the Global Wizard program. The
Global Wizard program helps you configure your modem’s homologation parameters for the country in which you want to
operate the modem.
If your computer is running the Windows 2000 operating system or newer, it is recommended that you use the Global
Wizard program.
To install the Global Wizard program:
1. If you have not already done so, download the file Global Wizard from the Multi‐Tech website.
2. From the location where you stored the download file, double click the global wizard icon.
3. In the dialog box that appears, click Run.
4. The Welcome pane of the Global Wizard Setup wizard appears. Click Next.
5. A License Agreement wizard pane opens. If you accept the agreement, click Yes.
6. In the next pane of the wizard, select the location where you want to install Global Wizard. If desired, navigate to the
location where you want to install. Otherwise, maintain the default location. Click Next.
7. The installation proceeds, and then completes.
●Select the Yes, I want to restart my computer now radio button.
●At the InstallShield Wizard Complete pane, click Finish.
8. After the computer reboots, you can use the Global Wizard to configure your modem’s homologation parameters.
To use the Global Wizard program:
1. From the Windows Start button, select All Programs, the Global Wizard folder and GlobalWizard.
2. The first pane of the Global Wizard opens. Click Next.
3. In the next wizard pane, select port associated with the modem that you want to configure. Click Next.

Chapter 2 –Installing the Modem
MT9234MU-CDC-XR User Guide 15
4. A notification dialog box opens. Read this information, then click OK.
5. In the next wizard pane, from the Country/Region drop‐down list, select the country/region in which the modem will
be used. Click Next.
6. In the next wizard pane, review your country/region choice. If it is correct, click Next.
7. 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.
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 responds “OK.”
3. Type AT&F&W (this saves changes). Press Enter.
4. The modem responds “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:
Country/Region
AT Command
(Hexadecimal)
Country Code
(Decimal)
Euro/NAM
AT%T19,0,34 (default)
52
You can find the complete list of country/region codes on the Multi-Tech Web site at
http://www.multitech.com/en_US/PRODUCTS/Categories/Device_Networking/global_modems/configuration.asp
The Global Modem Country Approvals page displays. On this page you can view approvals, configuration strings and
responses by country and product.

16 MT9234MU-CDC-XR User Guide
Chapter 3 Operating the Modem
Front Panel
The modem has 4 LEDs on the front panel indicating status, configuration, and activity:
●Data. The Data LED flashes when the modem is transmitting/receiving data to/from another modem.
●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.
●Off-Hook. The OH LED lights when the modem is off-hook, which occurs when the modem is dialing, online, or an-
swering a call. The LED flashes when the modem pulse-dials.
●Terminal Ready. The TR LED lights when Windows detects and initializes the modem.
Connecting to the Internet
To use the modem to access the Internet, establish a dial-up account with an Internet service provider (ISP). To locate an
ISP near you, look in a local directory or computer publication. To help you establish an account, your ISP provides 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 address
If you use the Internet for e-mail and newsgroups, your ISP can also provide you with the following information:
●E-mail or POP mail address
●POP server address
●Mail or SMTP address
●News or NNT server address
Before you can connect to the Internet, you must set up a remote-node client program on your computer. Windows uses
HyperTerminal to establish 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 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-XR User Guide 17
Chapter 4 Remotely Configuring
Modems
Remote configuration is a network management tool that allows you to configure modems anywhere in your network from
one location. With password protected remote configuration, you can issue AT commands to a remote MT9324MU modem
for maintenance or troubleshooting as if you were on site.
The following steps are valid regardless of whether the connection is established by the local or the remote Multi-Tech
modem.
To configure modems:
1. Establish a data connection with a remote MT9324MU 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.
Caution: If you hang up while you are in remote configuration mode, it may lock up the remote modem.
Changing the Setup Password
Multi-Tech modems are shipped with a default setup password (MTSMODEM). Because anyone who has an owner’s
manual knows the default setup password, for security you should change the password and possibly also the remote
configuration escape character.
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 E. 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 as described in “Basic Procedure.”
2. Type ATS9=n, where nis the ASCII code for the new remote configuration escape character, then press Enter.
3. To save the new value, type AT&W and press Enter.
4. Type ATO<CR> to exit remote configuration.

18 MT9234MU-CDC-XR User Guide
Appendix A Regulatory Information
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.
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.
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

Appendix A –Regulatory Information
MT9234MU-CDC-XR User Guide 19
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 on telecommunications device (modem):
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

Appendix A –Regulatory Information
20 MT9234MU-CDC-XR User Guide
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 label identifies certificated equipment. This certification means that the
equipment meets certain telecommunications network protective, operational and safety
requirements. The Industry Canada label does not guarantee the equipment will operate to the
user’s satisfaction.
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
telecommunications company cause to request the user to disconnect the equipment.
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.
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.
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 regulatory 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.