Multitech MTCBA-C-U User manual

MultiModem®CDMA USB
Wireless Modem
MTCBA-C-U
User Guide

Copyright and Technical Support
Multi-Tech Systems, Inc. MultiModem CDMA USB Wireless Modem User Guide 2
MultiModem® CDMA USB User Guide
Wireless Modem
MTCBA-C-U
S000345G, Revision G
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 © 2006 by Multi-Tech Systems, Inc.
Multi-Tech Systems, Inc. makes no representation or warranties with respect to the contents hereof and specifically
disclaims any implied warranties of merchantability or fitness for any particular purpose.
Furthermore, Multi-Tech Systems, Inc. reserves the right to revise this publication and to make changes from time to
time in the content hereof without obligation of Multi-Tech Systems, Inc., to notify any person or organization of such
revisions or changes. Check Multi-Tech’s Web site for current versions of our product documentation.
Revision History
Revision Date Description
A 07/13/04 Initial release.
B 05/05/05 Revised installation procedures.
C 09/15/05 Added the WEEE update.
D 10/13/05 Changed temperature range, added humidity rating, changed modem maintenance, and
warranty chapter.
E 05/04/06 Updated USB Plug & Play software installation.
F 06/30/06 Added AT command examples and frequently asked questions. Reorganized the chapters.
Changed the location of the Adtivation Notices. Added a note about current documentation on
Web site. Many other minor changes made.
G 09/05/06 Removed caution about not connecting USB cable to pc.
Trademarks and Logos
Multi-Tech and the Multi-Tech logo are trademarks of Multi-Tech Systems, Inc. MultiModem is a registered trademark
of Multi-Tech Systems, Inc. Windows is a registered trademark of Microsoft in the U.S. and other countries. Other
trademarks and trade names mentioned in this publication belong to their respective owners.
World Headquarters
Multi-Tech Systems, Inc.
2205 Woodale Drive
Mounds View, Minnesota 55112
[phone] or [phone]
Fax: [phone]
Internet Address: http://www.multitech.com
Technical Support
Country By Email By Phone
France: [e-mail] +(33) 1-64 61 09 81
India: [e-mail] [phone]
Europe, Asia, Africa: [e-mail] +(44) 118 959 7774
U.S., Canada, all others: [e-mail] [phone] or +[phone]

Table of Contents
Multi-Tech Systems, Inc. MultiModem CDMA USB Wireless Modem User Guide 3
Contents
Chapter 1 – Product Description and Specifications................................................................................................4
Product Description.................................................................................................................................................4
Features..................................................................................................................................................................4
Application Overview...............................................................................................................................................5
Application Types.............................................................................................................................................5
Benefits/Features in Applications............................................................................................................................6
Safety......................................................................................................................................................................7
General Safety.................................................................................................................................................7
RF Interference Issues.....................................................................................................................................7
Vehicle Safety..................................................................................................................................................7
Maintenance of Your Modem...........................................................................................................................8
Your Responsibility..........................................................................................................................................8
Package Contents............................................................................................................................................8
Specifications..........................................................................................................................................................9
Functions – CDMA USB Modes..............................................................................................................................9
Electrical Characteristers........................................................................................................................................9
Antenna/RF Specifications....................................................................................................................................10
Interfaces..............................................................................................................................................................10
LEDs.....................................................................................................................................................................10
AT Command Information.....................................................................................................................................10
Chapter 2 – Activation and Installation....................................................................................................................11
Step 1 – Activate Your Wireless Account..............................................................................................................11
Step 2 – Hook up the Antenna and USB Cable ....................................................................................................11
Step 3 – Handset Connection (Optional)...............................................................................................................12
Step 4 – Attach the Modem to a Flat Surface (Optional)......................................................................................12
Step 5 – Install the Modem Driver.........................................................................................................................14
Introduction....................................................................................................................................................14
Installing the Modem Driver in Windows XP/2003 .........................................................................................14
Installing the Modem Driver in Windows 2000...............................................................................................18
Chapter 3 – Using Your Wireless Modem ................................................................................................................22
Phone Numbers for the Wireless Modem .............................................................................................................22
Examples of Useful AT Commands ......................................................................................................................22
Verifying Signal Strength ...............................................................................................................................22
Checking Network Registration and Roaming Status.....................................................................................22
Checking the Modem’s Identity......................................................................................................................22
Establishing a Voice Call ...............................................................................................................................23
Establishing a Circuit-Switched Data (CSD) Connection ...............................................................................23
Answering a Circuit-Switched Data (CSD) Connection..................................................................................23
Using Short Message Services (SMS)..................................................................................................................24
SMS Examples ..............................................................................................................................................25
Internet Access.....................................................................................................................................................26
Connecting to the CDMA Network for Internet Access ..................................................................................26
Mobile PhoneTools ...............................................................................................................................................28
Chapter 4 – Troubleshooting and Frequently Asked Questions............................................................................29
Troubleshooting Examples....................................................................................................................................29
Situation A: The modem does not respond through the serial link.................................................................29
Frequently Asked Questions.................................................................................................................................30
Chapter 6 – Reference Information...........................................................................................................................32
Wireless Modem Reference Information...............................................................................................................32
General..........................................................................................................................................................32
Appendix A – Warranty and Repairs ........................................................................................................................33
Appendix B - Waste Electrical and Electronic Equipment (WEEE) Statement .....................................................35

Chapter 1 – Product Description and Specifications
Multi-Tech Systems, Inc. MultiModem CDMA USB Wireless Modem User Guide 4
Chapter 1 – Product Description
and Specifications
Product Description
The Multi-Tech MultiModem CDMA USB is an external data/fax/voice wireless modem. It also supports mobile
originated short message service (SMS) and mobile-terminated SMS. It offers standards-based multi-band CDMA
2000 1xRTT performance. This ready-to-deploy, standalone modem allows developers to add wireless
communication to products with a minimum of development time and expense. The MultiModem CDMA USB
Wireless modem is based on industry-standard open interfaces, is fully approved, and can be desktop or panel
mounted.
Models:
MTCBA-C-U-N1 is a generic 800/1900 MHz CDMA USB modem that must be programmed with Provisioning
Information (PRI) and a Preferred Roaming List (PRL). (A-key = Random). Recommended for
developers.
MTCBA-C-U-N2 is an 800/1900 MHz CDMA USB modem provisioned for Sprint networks. USA
MTCBA-C-U-N3 is an 800/1900 MHz CDMA USB modem provisioned for Verizon networks. USA
MTCBA-C-U-N4 is an 800 MHz CDMA USB modem for regions that use R-UIM cards. (R-UIM).
MTCBA-C-U-N9 is a generic 800/1900 MHz CDMA USB modem must be programmed with Provisioning Information
(PRI) and a Preferred Roaming List (PRL). (A-key = 0). Recommended for developers.
MTCBA-C-U-N12 is an 800/1900 MHz CDMA USB modem provisioned for Bell Mobility. Canada.
MTCBA-C-U-N14 is an 800/1900 MHz CDMA USB modem provisioned for Alltel networks. USA.
Other Product Codes:
NAM is the model for US and Canada
E/U is the model for Europe and the rest of the world
A Note About Documentation:
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 for current versions of our product documentation.
Features
•CDMA2000 1xRTT operation
•Dual-band 800/1900 CDMA
•800 MHz with R-UIM support
•Class 2.0 Group 3 FAX
•Desktop or panel mounting
•Short Message Service features including SMS mobile originated, SMS mobile
terminated, cell broadcast, Over the Air Activation (OTA), OTASP, OTAPA
•Voice features include DTMF, telephony, OCELP 13K, echo cancellation
•SMA antenna connector
•Serial interface supports DTE speeds to 230K
•AT command compatible
•CDMA IS-95-A, IS-95B; backwards compatible
•Packet data up to 153K bps forward and reverse
•Circuit-switched data up to 14.4K bps
•Phone book management and Personal Information Management (PIM)
•Fixed dialing number
•Supplementary services including call forwarding, call barring, multiparty, call
waiting and call hold, calling line identification, closed user group, call transfer
•Numerous LEDs present operational status
•Real time clock
•Alarm management

Chapter 1 – Product Description and Specifications
Multi-Tech Systems, Inc. MultiModem CDMA USB Wireless Modem User Guide 5
Application Overview
Application Types
With packet data speeds up to 153K bps, the MultiModem CDMA USB Wireless Modem is targeted at
applications that periodically need to send or receive data over a wireless network. It is an ideal solution for:
Appliances
ATM Terminals
Automotive
Data Collection
Gas Pumps
Industrial and Medical Remote Monitoring Systems
Remote Diagnostics
Remote Metering
Security Systems
Vending/Gaming Machines
Other devices requiring wireless connectivity.
Note: The Wireless MultiModem must be mounted with at least 8
inches (20 cm) of clearance from the human body.
RS2 3 2
Wireless MultiModem used in
remote ATM application.

Chapter 1 – Product Description and Specifications
Multi-Tech Systems, Inc. MultiModem CDMA USB Wireless Modem User Guide 6
Benefits/Features in Applications
Short Development Time. The MultiModem CDMA USB Wireless Modem can make your existing and next
generation device, machine, or system, communication-ready without requiring any hardware changes to its
design. It actually provides faster time-to-market because it relieves the burden and expense of obtaining
network and RF approvals. This complete, ready-to-deploy wireless modem allows you to enhance your
product while you focus on developing its core features.
Voice Features. The MultiModem CDMA USB provides telephony and Dual Tone Multi Frequency (DTMF)
functionality as well as QCELP (13K) and echo cancellation.
Short Message Services. The MultiModem CDMA USB Wireless Modem offers SMS features such cell
broadcast, Over the Air Activation (OTA), OTASP, and OTAPA. It is SMS Mobile Originated and SMS Mobile
Terminated.
Compatible Supplementary Services. The MultiModem CDMA USB Wireless Modem is compatible with
supplementary services such as call forwarding, call barring, multiparty, call waiting and call hold, calling line
identification, closed user group and explicit call transfer.
Management Features. The MultiModem CDMA USB Wireless Modem provides advanced management
features including phone book management, fixed dialing number, and real time clock and alarm management.
Industry-standard Modem Commands. The MultiModem CDMA USB Wireless Modem provides industry-
standard AT-style commands for ease of integration into your existing software application.
Industrial Chassis. The MultiModem CDMA USB Wireless Modem is packaged in a rugged, water resistant,
industrial chassis. The chassis has an RS-232 DE-15 Voice/Data interface connector and a permanent screw-
type power connector. It also has an SMA antenna connector. The chassis can be side-mounted on a panel or
top-mounted on a desktop or other surface. A set of LEDs indicates the modem’s operational status.
Packet-Switched Data. The MultiModem CDMA USB Wireless Modem supports CDMA2000 1xRTT packet-
switched cellular data. This enables mobile Internet functionality by allowing interworking between the existing
Internet and the cellular network at speeds up to 153.6K bps (forward and reverse). Any service that is used
over the fixed Internet today – File Transfer Protocol (FTP), web browsing, chat, e-mail, telnet – is available
over the cellular network, as well.
Circuit-Switched Data (CSD). The MultiModem CDMA USB Wireless Modem supports CDMA IS-95A and
IS-95B circuit-switched cellular data connections. Circuit-switched data connections support speeds up to
14.4K bps as well as Class 2.0 Group 3 fax. CSD cellular wireless connections are ideal for applications that
require a quick wireless replacement of an existing point-to-point analog dial-up connection. They integrate
seamlessly with your current application requiring little infrastructure change.
Internet-Enabled. Some models of the MultiModem CDMA USB Wireless Modem include an embedded
TCP/IP protocol stack to bring Internet connectivity to any device without making changes to its hardware
design. Using the Internet protocols and the wirless connection to an IP network, the modem sends and
receives data over the Internet. It can also serve a single web page in response to a web browser request.

Chapter 1 – Product Description and Specifications
Multi-Tech Systems, Inc. MultiModem CDMA USB Wireless Modem User Guide 7
Safety
General Safety
The modem is designed for and intended to be used in fixed and mobile applications. “Fixed” means that the device is
physically secured at one location and is not able to be easily moved to another location. “Mobile” means that the
device is designed to be used in other than fixed locations.
Caution: Maintain a separation distance of at least 20 cm (8 inches) is normally maintained
between the transmitter’s antenna and the body of the user or nearby persons. The Modem
is not designed for or intended to be used in portable applications within 20 cm. (8 inches) of
the body of the user.
RF Interference Issues
It is important to follow any special regulations regarding the use of radio equipment due in particular to the possibility
of radio frequency, RF, interference. Please follow the safety advice given below carefully.
•Switch OFF your Wireless MultiModem when in an aircraft. The use of cellular telephones in an aircraft may
endanger the operation of the aircraft, disrupt the cellular network and is illegal. Failure to observe this
instruction may lead to suspension or denial of cellular telephone services to the offender, or legal action or
both.
•Switch OFF your Wireless MultiModem when around gasoline or diesel-fuel pumps and before filling your
vehicle with fuel.
•Switch OFF your Wireless MultiModem in hospitals and any other place where medical equipment may be in
use.
•Respect restrictions on the use of radio equipment in fuel depots, chemical plants or where blasting operations
are in progress.
•There may be a hazard associated with the operation of your Wireless MultiModem close to inadequately
protected personal medical devices such as hearing aids and pacemakers. Consult the manufacturers of the
medical device to determine if it is adequately protected.
•Operation of your Wireless MultiModem close to other electronic equipment may also cause interference if the
equipment is inadequately protected. Observe any warning signs and manufacturers’ recommendations.
Vehicle Safety
•Do not use your MultiModem while driving.
•Respect national regulations on the use of cellular telephones in vehicles. Road safety always comes first.
•If incorrectly installed in a vehicle, the operation of Wireless MultiModem telephone could interfere with the
correct functioning of vehicle electronics. To avoid such problems, be sure that qualified personnel have
performed the installation. Verification of the protection of vehicle electronics should be part of the installation.
•The use of an alert device to operate a vehicle’s lights or horn on public roads is not permitted.

Chapter 1 – Product Description and Specifications
Multi-Tech Systems, Inc. MultiModem CDMA USB Wireless Modem User Guide 8
Maintenance of Your Modem
Your Wireless MultiModem is the product of advanced engineering, design and craftsmanship and should be treated
with care. The suggestions below will help you to enjoy this product for many years.
•Do not expose the Wireless MultiModem to any extreme environment where the temperature is above 50ºC or
humidity is above 90% noncondensing.
•Do not attempt to disassemble the Wireless MultiModem. There are no user serviceable parts inside.
•Do not expose the Wireless MultiModem to water, rain, or spilled beverages. It is not waterproof.
•Do not place the Wireless MultiModem alongside computer discs, credit or travel cards, or other magnetic
media. The phone may affect the information contained on discs or cards.
•The use of accessories not authorized by Multi-Tech or not compliant with Multi-Tech's accessory
specifications may invalidate the warranty of the Wireless MultiModem.
•In the unlikely event of a fault in the Wireless MultiModem, contact Multi-Tech Tech Support.
Your Responsibility
This Wireless MultiModem is your responsibility. Please treat it with care respecting all local regulations. It is not a
toy. Therefore, keep it in a safe place at all times and out of the reach of children.
Try to remember your Unlock and PIN codes. Become familiar with and use the security features to block
unauthorized use and theft.
Package Contents
Single Package (one unit) Bundled Package (multiple units)
1 modem
1 mounting bracket
1 Quick Start Guide
Each individual package in the bundle includes the following:
1 modem
1 mounting bracket
1 USB cable
1 antenna
4 adhesive-backed rubber feet for table-top mounting
1 MultiModem CD
1 Quick Start Guide
Parts to be Supplied by End User
•mounting screws (screw shaft diameter = .17” max.)
•antenna (Basic Package)

Chapter 1 – Product Description and Specifications
Multi-Tech Systems, Inc. MultiModem CDMA USB Wireless Modem User Guide 9
Specifications
General Specifications
Mechanical Dimensions & Weight 4.3" L x 2.4" W x 0.94" H; 4.2 oz.
(11 cm x 6.1 cm x 2.4 cm; 119 g)
Connectors & Fasteners Antenna Connection type: SMA jack
Interface Connector: USB Type B
Phone Handset: Modular Handset Jack
Operating Temperatures -20° to +55°C
Storage Temperatures -40° to +85°C
Humidity Relative humidity 20% to 90% noncondensing
Certifications EMC: FCC Part 2, 15, 22, 24, EN 55022, EN 55024
Safety: cUL, UL 60950, EN 60950
Network: CDG 1 & 2
Functions – CDMA USB Modes
Mode Description
Standard Dual Band 800/1900 CDMA
Interface USB 12 Mbps. AT command set based on TIA/EIA/IS707.3, V.25ter and CDMA 07.05 & 07.07
SMS Mobile Originated (MO) and Mobile Terminated (MT), Over the Air Activation (OTA), OTASP,
and OTAPA
Data Asynchronous 2400, 4800, 9600, and 14400 bps.
Transparent and Non-Transparent modes.
Mode 3.1 KHz (PSTN) and V110 (ISDN).
Fax [phone]/9600 bps
Class 2.0 Group 3 compatible.
Electrical Characteristers
Electrical Characteristics
Switching the modem on/off The device is permanently powered by the PC.
Voltage Range Voltage range : 4.75 to 5.25 coming from the PC
Overvoltage and Undervoltage Correct operation of the Wireless MultiModem in communication mode is
not guaranteed if input voltage falls below 4.75.
Current Requirement
Parameters 800 MHZ 1900 MHZ
Typ. Typ. Unit
Input supply current in comm. mode at full Tx power 500 500 mA
Input supply current in comm. mode at average Tx power 240 250 mA
Input supply current in idle mode 50 50 mA

Chapter 1 – Product Description and Specifications
Multi-Tech Systems, Inc. MultiModem CDMA USB Wireless Modem User Guide 10
Antenna/RF Specifications
CDMA 800 CDMA 1900
Frequency 824 to 894 MHz 1850 to 1900 MHz
Impedance 50 ohms
VSWR <2
Typical Radiated Gain 0 dBi on azimuth plane
Interfaces
The Wireless MultiModem has several interfaces:
LED function indicating operating status
External antenna (via SMA connector)
USB connector
Microphone and speaker (via handset jack)
LEDs LED Indicators
TD Transmit Data. Light is on when modem is transmitting data.
RD Receive Data. Light is on when modem is receiving data.
CD Carrier Detect. Light is on when data connection has been established.
LS Line Status.
Continuous “on” state indicates that the wireless modem is not registered on the network.
Flashing state indicates registration on network.
Off state. Modem is off (not ready) or in download mode.
TR Terminal Ready. Commonly called “Data Terminal Ready.” This is a readiness signal from the PC.
PWR Power. Light is on continuously to when power on. (On the IP model, this LED flashes when power is
on.
AT Command Information
AT commands for the CDMA wireless modem are published in a separate CDMA AT Commands Reference
Guide included on the MultiModem CD and posted on the Multi-Tech web site.
IP commands for CDMA modems are also published in a separate CDMA AT Commands Reference Guide
included on the MultiModem CD and posted on the Multi-Tech web site.

Chapter 2 – Activation and Installation
Multi-Tech Systems, Inc. MultiModem CDMA USB Wireless Modem User Guide 11
Chapter 2 – Activation and
Installation
Step 1 – Activate Your Wireless Account
Multi-Tech – A Certified National Activation Agent
Multi-Tech Systems, Inc. is a certified national activation agent for Cingular and Sprint wireless. For more
information about available data plans and to purchase and activate a wireless data account, contact Multi-
Tech at 888-288-5470.
Pre-Configured Multi-Tech Products
Each Multi-Tech wireless product has been pre-configured to operate on a wireless network.
Activate Your Wireless Account
Please see the wireless account Activation Notices located on the MultiModem CD. Choose the one for your
wireless network provider and follow the directions to activate your account.
Phone Numbers for the Wireless Modem
Every wireless modem will have its own unique phone number. The phone number will be given to you by your
wireless service provider. Wireless provider implementations may vary.
Step 2 – Hook up the Antenna and USB Cable
Antenna
Connect a suitable antenna to the SMA connector (see antenna specifications on page 10).
USB Cable
Connect the USB cable to the modem and to the USB connector on the PC.

Chapter 2 – Activation and Installation
Multi-Tech Systems, Inc. MultiModem CDMA USB Wireless Modem User Guide 12
Step 3 – Handset Connection (Optional)
If you intend to use a phone handset, connect it to the MultiModem now.
Step 4 – Attach the Modem to a Flat Surface
(Optional)
To mount the Wireless MultiModem, do the following:
1. Obtain mounting screws (two are needed) that are appropriate for the surface on which you will mount the
modem. For example, one might use two 6-32 self-tapping screws 5/8” in length to mount the unit in a
truck to the wall of the cab behind the passenger’s seat.
2. Typically, the unit is mounted against a flat surface into which holes can be drilled. The mounting holes
(center-to-center) must be separated by 125mm or 4 -15/16 inches.
Drill the mounting holes at the desired mounting location.

Chapter 2 – Activation and Installation
Multi-Tech Systems, Inc. MultiModem CDMA USB Wireless Modem User Guide 13
3. Slide the mounting bridles into the corresponding slots on the backside of the modem chassis.
4. Attach the modem with two screws to the mounting surface at the desired location on the equipment.

Chapter 2 – Activation and Installation
Multi-Tech Systems, Inc. MultiModem CDMA USB Wireless Modem User Guide 14
Step 5 – Install the Modem Driver
Introduction
Compatibility: This wireless MultiModem is compatible with Windows Operating Systems 2000/2003/XP and
Linux.
Windows Drivers: The wireless MultiModem USB driver must be installed in your computer’s program directory.
The procedure differs depending on the operating system and how it is set up. The drivers are located on the
MultiModem CD.
Linux Drivers: Linux Operating System drivers are also located on the CD in the Linux directory. Refer to the
Readme file (also in the Linux directory) for the correct driver file and installation guide for your
distribution/version of Linux.
Overview of Windows Driver Installation: Three install wizards guide you through the software Installation in
this order:
•Part A installs the USB Driver.
•Part B associates the PC port with the USB Driver, and finally
•Part C installs the modem .inf file.
Installing the Modem Driver in Windows XP/2003
This installation assumes a Windows XP or Windows 2003 operating system. Windows XP/2003 are identical in
the methods they use for installing modem drivers.
Part A for Windows XP/2003: Installing the USB Driver
1. Connect the USB cable between the MultiModem and the PC.
2. Insert the MultiModem CD into your CD-ROM drive. The CD uses the Autorun feature, and
after a brief delay, the MultiModem Setup – Welcome screen appears. Close the Welcome
screen.
In some situations the operating system will display a Found New Hardware Wizard screen and
asks you: Can Windows connect to Windows Update to search for software?
Select No, not this time. Then click Next.
3. The Found New Hardware Wizard screen now displays the TUSB3410 Serial Port device. This
is the first of three New Hardware Wizards that will appear.

Chapter 2 – Activation and Installation
Multi-Tech Systems, Inc. MultiModem CDMA USB Wireless Modem User Guide 15
4. Click on Install from a list or specific location (Advanced).
5. Click Next.
6. The next screen is the Please choose your search and installation options.
Ensure that Search for the best driver in these locations with Search removable media
(floppy, CD-ROM…) is selected.
Click Next.
7. A Windows Logo Testing screen may appear. Some operating systems may not give you this
screen.
Click Continue Anyway.
8. At the Completing the Found New Hardware Wizard screen, click Finish. Installation of the USB
driver is now complete.
The second Found New Hardware wizard will start automatically to associate the PC port with the USB
driver.

Chapter 2 – Activation and Installation
Multi-Tech Systems, Inc. MultiModem CDMA USB Wireless Modem User Guide 16
Part B for Windows XP/2003: Associating PC Port with USB Driver
1. If the Welcome to the Found New Hardware Wizard screen – Can Windows connect to
Windows update to search for software? appeared when you were installing the driver, it will
come up here also.
Select No, not this time. Then click Next.
2. The Welcome to the Found New Hardware Wizard screen will appear with the Texas
Instruments UMP Serial Port as the device to be installed. This is the beginning of the Found
New Hardware sequence for the port.
3. Click Install from a list or specific location (Advanced).
Click Next.
4. Please choose your search and installation options screen appears.
5. Ensure that Search for the best driver in these locations is set and click on Search
removable media (floppy, CR-ROM…).
Click Next.
6. A second Windows Logo Testing screen may appear depending on operating system settings.
This screen pertains to the MTS CDMA USB – Serial Port.
Click Continue Anyway.
7. The Completing the Found New Hardware Wizard screen appears.
8. The association between the serial port and the USB driver has been made.
Click Finish.
The third Found New Hardware wizard will start automatically to install the modem inf file.

Chapter 2 – Activation and Installation
Multi-Tech Systems, Inc. MultiModem CDMA USB Wireless Modem User Guide 17
Part C for Windows XP/2003: Installing the Modem INF File
1. If the Welcome to the Found New Hardware Wizard screen asking – Can Windows connect to
Windows update to search for software? appears again, select No, not this time. Then click Next.
2. The Found New Hardware Wizard screen appears for the Multi-Tech – CDMA Modem.
3. Click on Install from a list or specific location (Advanced).
Then click Next.
4. The Please choose your search and installation options screen appears.
5. Ensure that Search for the best driver in these locations is set and click on Search removable
media (floppy, CD-ROM).
Click Next.
6. In the Please select the best match for your hardware from the list below, select the Multi-Tech
Systems USB CDMA Wireless Modem Version 6.3.30.6 that is listed in the root of the CD-ROM
directory.
Then click Next.
7. The final Windows Logo Testing screen may appear depending on operating system settings. This
screen pertains to the creation of a modem entity in the operating system that accommodates the
wireless USB MultiModem.
Click Continue Anyway.
8. The Completing the Found New Hardware Wizard screen appears.
Click Finish.
With the modem .inf file successfully installed, the entire software installation procedure for the Wireless
USB MultiModem is complete.

Chapter 2 – Activation and Installation
Multi-Tech Systems, Inc. MultiModem CDMA USB Wireless Modem User Guide 18
Installing the Modem Driver in Windows 2000
Part A for Windows 2000: Installing the USB Driver
1. Connect the USB cable between the MultiModem and the PC.
2. Insert the MultiModem CD into your CD-ROM drive. The CD uses the Autorun feature, and
after a brief delay, the MultiModem Setup – Welcome screen appears. Close the Welcome
screen.
After a brief delay, the Welcome to the Found New Hardware Wizard screen appears. This is
the first of three New Hardware Wizards that will appear.
Click Next.
3. The Install Hardware Device Drivers screen appears referring to the TUSB3410 Serial Port
device.
4. Click on Search for a suitable driver for my device (recommended)
Click Next.
5. The Locate Driver Files screen appears. Click in the Optional search locations: on CD-ROM
drive option.
Click Next.

Chapter 2 – Activation and Installation
Multi-Tech Systems, Inc. MultiModem CDMA USB Wireless Modem User Guide 19
6. The Driver Files Search Results screen appears. The wizard has found the wrong driver.
Click on Install one of the other drivers.
Click Next.
7. At the Driver Files Found screen, choose the CDMA Device from the listing.
Click Next.
8. A Digital Signature Not Found screen may appear depending on operating system settings.
Click Yes.
9. At the Completing the Found New Hardware Wizard screen, click Finish.
Installation of the USB driver is now complete.
The second Found New Hardware wizard will start automatically to associate the PC port with the USB
driver.

Chapter 2 – Activation and Installation
Multi-Tech Systems, Inc. MultiModem CDMA USB Wireless Modem User Guide 20
Part B for Windows 2000: Associating PC Port with USB Driver
1. Wait while Windows prepares the next phase of the installation (associating the PC port with
the USB drive). When the Welcome to the Found New Hardware Wizard screen appears, click
Next.
2. The Install Hardware Device Drivers screen appears referring to the Texas Instrument UMP
Serial Port. This is the beginning of the “Found New Hardware” sequence for the port.
Click on Search for a suitable driver for my device (recommended).
Click Next.
3. The Locate Drivers Files screen appears. Ensure that CD-ROM driver is the only option
checked.
Click Next.
4. The Driver Files Search Results screen appears with the Texas Instruments UMP Serial
Port device listed with the location of the driver.
Click Next.
5. The Completing the Found New Hardware Wizard screen appears. The association
between the serial port and the USB driver has been made.
6. Click Finish.
The third Found New Hardware Wizard will start automatically to install the modem INF file.