Multi-Tech Systems MTCBA-G-U User Manual 2

MultiModem® GPRS USB

Wireless Modem

MTCBA-G-U

User Guide

Copyright and Technical Support

MultiModem® GPRS USB
External Wireless Modem User Guide
Model MTCBA-G-U
S000346I, Revision I

Copyright

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

Copyright © 2007 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 04/04/05 Changed model nomenclature to GPRS.
C 05/05/05 Revised installation procedures.
D 09/15/05 Add WEEE update to User Guide.
E 10/13/05 Change temperature range, added humidity rating, changed modem maintenance, and

warranty chapter.

F 05/04/06 Updated USB Plug & Play software installation.
G 06/29/06 Changed the location of the Activation Notices. Added note about current documentation

on Web site. Added Frequently Asked Questions.

H 09/05/06 Removed caution about not connecting USB cable to PC.
I 01/19/07 Added caution to splash screen.

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]

Multi-Tech Systems, Inc. MultiModem GPRS USB Wireless Modem User Guide 2

Table of Contents

Contents

Chapter 1 – Product Description and Specifications................................................................................................4

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

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

Application Overview...............................................................................................................................................5

Application Types.............................................................................................................................................5

Benefits/Features in Applications.....................................................................................................................5

Safety......................................................................................................................................................................6

General Safety.................................................................................................................................................6

RF Interference Issues.....................................................................................................................................6

Vehicle Safety..................................................................................................................................................6

Maintenance of Your Modem...........................................................................................................................6

Your Responsibility..........................................................................................................................................6

Package Contents...................................................................................................................................................7

Specifications..........................................................................................................................................................8

Antenna/RF Specifications...............................................................................................................................8

Interfaces................................................................................................................................................................9

LEDs................................................................................................................................................................9

AT Command Reference Guides.....................................................................................................................9

Chapter 2 – Activation and Installation....................................................................................................................10

Step 1 – Activate Your Wireless Account..............................................................................................................10

Step 2 – Insert the SIM Card into the Holder ........................................................................................................10

Step 3 – Connect the Antenna and USB Cable ....................................................................................................11

Step 4 – Handset Connection (Optional)...............................................................................................................11

Step 5 – Attach the Modem to a Flat Surface (Optional).......................................................................................12

Step 6 – Install the Modem Driver.........................................................................................................................13

Introduction....................................................................................................................................................13

Installing the Modem Driver in Windows XP/2003 .........................................................................................13

Installing the Modem Driver in Windows 2000...............................................................................................17

Chapter 3 – Using Your Wireless Modem ................................................................................................................21

Phone Number for the Wireless Modem...............................................................................................................21

Examples of Useful AT Commands ......................................................................................................................21

Verifying Signal Strength ...............................................................................................................................21

Checking Network Registration and Roaming Status.....................................................................................21

Checking the Modem’s Identity......................................................................................................................21

Establishing a Voice Call ...............................................................................................................................22

Establishing a Circuit-Switched Data (CSD) Connection ...............................................................................22

Answering a Circuit-Switched Data (CSD) Connection..................................................................................22

Using Short Message Services (SMS)..................................................................................................................23

SMS Examples ..............................................................................................................................................24

Internet Access.....................................................................................................................................................26

Connecting to the GPRS Network for Internet Access...................................................................................26

Mobile PhoneTools ...............................................................................................................................................28

Chapter 4 – Troubleshooting and Frequently Asked Questions............................................................................29

Troubleshooting Examples....................................................................................................................................29

Frequently Asked Questions.................................................................................................................................30

Chapter 5 – Reference Information...........................................................................................................................32

Wireless Modem Reference Information...............................................................................................................32

Appendix A – Warranty and Repairs........................................................................................................................33

Appendix B - Waste Electrical and Electronic Equipment (WEEE) Statement ..................................................... 35

Multi-Tech Systems, Inc. MultiModem GPRS USB Wireless Modem User Guide 3

Chapter 1 – Product Description and Specifications

Chapter 1 – Product Description

and Specifications

Product Description

The Multi-Tech MultiModem GPRS-U is an external data/fax/voice wireless modem with a USB interface. It supports
mobile originated short message service (SMS) and mobile-terminated SMS. Designed for global use, it offers
standards-based multi-band GSM/GPRS Class 10 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 GPRS is based on industry-standard open interfaces, is fully type approved, and can be desktop or
panel mounted.

Models:
MTCBA-G-U-F1 is the 900/1800 MHz GPRS USB modem (RS-232)
MTCBA-G-U-F2 is the 850/1900 MHz GPRS USB modem (RS-232)

Other Product Codes:
NAM is the model for US and Canada
GB/IE is the model for Great Britain and Ireland
Euro/ROW 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

• GPRS Class 10 operation

• Dual-band 850/1900 or 900/1800 GSM/GPRS

• GSM Class 1 and Class 2 Group 3 FAX

• Desktop or panel mounting

• Short Message Services including text and PDU, point-to-point, cell

broadcast

• 14.4K GSM circuit switched data

• SMA antenna connector and SIM socket

• Serial interface supports DTE speeds to 115.2K

• AT command compatible

• MNP2 V.42bis data compression

• Numerous LEDs provide operational status

• ME + SIM phone book management

• Fixed dialing number

• SIM Toolkit Class 2

• SIM, network and service provider locks

• Real time clock

• Alarm management

• UCS2 character set management

• Packet data up to 85K bps

• Embedded TCP/IP stack

• Circuit-switched data (GSM) up to 14.4K bps transparent and non-

transparent

Multi-Tech Systems, Inc. MultiModem GPRS USB Wireless Modem User Guide 4

Chapter 2 – Installation

Application Overview

Application Types

With circuit switched data rates up to 14.4K bps, the MultiModem GPRS 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.

Benefits/Features in Applications

Short Development Time. The MultiModem GPRS 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 GPRS provides telephony and Dual Tone Multi Frequency (DTMF)
functionality. It also allows for emergency calls as well as echo cancellation and noise reduction (option), and
full rate, enhanced Full Rate and Half Rate (FR/EFR/HR).

Short Message Services. The MultiModem GPRS offers SMS features such as text and PDU, point-to-point
(MT/MO) and cell broadcast.

Compatible Supplementary Services. The MultiModem GPRS is compatible with supplementary services
such as call forwarding, call barring, multiparty, call waiting and call hold, calling line identification, advice of
charge, USSD, closed user group and explicit call transfer.

Management Features. The MultiModem GPRS provides advanced management features including phone
book management, fixed dialing number, and real time clock and alarm management.

Industry-standard Modem Commands. The MultiModem GPRS provides industry-standard AT-style
commands for ease of integration into your existing software application.

Industrial Chassis. The MultiModem GPRS is packaged in a rugged, water resistant, industrial chassis. The
chassis has a USB connector for power and data. It has an SMA antenna connector. It also has modular
phone handset receptacle. 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 GPRS supports GPRS Class 10 packet-switched cellular data. This
enables mobile Internet functionality by allowing interworking between the existing Internet and the cellular
network at speeds up to 85K bps. 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. The MultiModem
GPRS supports PBCCH and coding schemes CS1 to CS4, and is compliant with SMG31bis.

Circuit-Switched Data (CSD). The MultiModem GPRS also supports GSM circuit-switched cellular data
connections. Circuit-switched data connections support speeds up to 14.4K bps, Class 1 and Class 2 Group 3
fax, as well as MNP2 V.42bis compression. 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. The MultiModem GPRS includes an embedded TCP/IP protocol stack to bring Internet
connectivity to any device. Using the embedded Internet protocols and the wireless connection to an IP
network, it sends and receives data over the Internet. It can also serve a single web page in response to a web
browser request.

Multi-Tech Systems, Inc. MultiModem GPRS USB Wireless Modem User Guide 5

Chapter 2 – Installation

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.

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.

Multi-Tech Systems, Inc. MultiModem GPRS USB Wireless Modem User Guide 6

Chapter 2 – Installation

Package Contents

Single Package (one unit) Bundled Package (multiple units)

1 modem
1 mounting bracket
1 Quick Start Guide
1 MultiModem CD

Note: You must supply:

Screws for the bracket
An antenna

Part to be Supplied by Your Wireless Service Provider

Subscriber Identity Module (SIM) configuration chip. The SIM contains information specific to your wireless
account and its features.

Each individual package in the bundle includes
the following:

1 modem
1 mounting bracket
1 USB cable
1 or 2 antennas
4 rubber feet
1 Quick Start Guide
1 MultiModem CD

Note: You must supply screws for the bracket.

Multi-Tech Systems, Inc. MultiModem GPRS USB Wireless Modem User Guide 7

Chapter 2 – Installation

Specifications

General Specifications

Mechanical Dimensions & Weight
Connectors & Fasteners Antenna Connection type: SMA jack

Operating Temperatures
Storage Temperatures
Humidity
Certifications

Switching the GPRS modem on/off The device is permanently powered when connected to the USB port.
Voltage Voltage Range: 5 to 32V DC

Parameters

Input average supply current in comm. mode at P
Input average supply current in idle mode 30 30 mA

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)

Interface Connector: USB Type B
Phone Handset: Modular handset jack
SIM receptacle: Standard 3V SIM receptacle

-20° to +55°C

-40° to +85°C
Relative humidity 20% to 90% noncondensing
CE Mark
EMC: FCC Part 2, 15, 22, 24, EN 55022 & EN 55024
Safety: UL 60950, EN 60950

Electrical Characteristics

GND: 0V

Current Requirements

GSM/GPRS 850/900 GSM/GPRS 1800/1900

Typ. Typ.

360 300 mA

max

Unit

Antenna/RF Specifications

Frequency RX
Frequency TX
RF Power Stand
Impedance
VSWR
Typical Radiated Gain

Frequency RX
Frequency TX
RF Power Stand
Impedance
VSWR
Typical Radiated Gain

GSM 850

869 to 894 MHz
824 to 849 MHz
2W at 12.5% duty cycle
50 ohms
<2
0 dBi on azimuth plane

GSM 1800 GSM 1900

1805 to 1880 MHz 1930 to 1990 MHz
1710 to 1785 MHz 1850 to 1910 MHz
1W at 12.5% duty cycle 1W at 12.5% duty cycle
50 ohms
<2
0 dBi on azimuth plane

Multi-Tech Systems, Inc. MultiModem GPRS USB Wireless Modem User Guide 8

Interfaces

The Wireless MultiModem has several interfaces:

• LED function indicating operating status

• External antenna (via SMA connector)

• Serial and control link (via USB connector)

• Microphone and speaker (via handset jack)

• SIM card holder

LEDs

TD Transmit Data. Lit when modem is transmitting data.
RD Receive Data. Lit when modem is receiving data.
CD Carrier Detect. Lit 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. Indicates presence of DC power when lit.

Chapter 2 – Installation

LED Indicators

AT Command Reference Guides

AT commands for the GPRS USB wireless modem are published in a separate GPRS AT Commands
Reference Guide included on the MultiModem CD and posted on the Multi-Tech web site.

Multi-Tech Systems, Inc. MultiModem GPRS USB Wireless Modem User Guide 9

Chapter 2 – Activation and Installation

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-Configuration and Activation

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 may simply be given to you by
your wireless service provider or it may be on the SIM card or both. Wireless provider implementations may vary.

Step 2 – Insert the SIM Card into the Holder

The wireless MultiModem requires a SIM card (Subscriber Identity Module) to operate on a GSM network. To install
the card, do the following:

1. Using your fingernail or a small wedging tool (e.g., a small screwdriver), pry off the SIM cover.

2. Insert the SIM card into the holder.

3. Verify that the SIM card fits into the holder properly and then replace the cover.

Multi-Tech Systems, Inc. MultiModem GPRS USB Wireless Modem User Guide 10

Chapter 3 – Using Your Wireless Modem

Step 3 – Connect the Antenna and USB Cable

• Antenna. Connect a suitable antenna to the SMA connector (See antenna specifications in Chapter 1).

• USB Cable. Connect one end of the USB cable to the modem and the other end to the PC.

Step 4 – Handset Connection (Optional)

If you intend to use a phone handset, connect it to the MultiModem now.

Multi-Tech Systems, Inc. MultiModem GPRS USB Wireless Modem User Guide 11