Multitech MTCBA-C-N1, MTCBA-C-N11, MTCBA-C-N2, MTCBA-C-N12, MTCBA-C-N3 User Manual
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®
MultiModem
Wireless Modem
CDMA
MTCBA-C
User Guide
Copyright and Technical Support
MultiModem® CDMA User Guide
Wireless Modem
MTCBA-C
S000303K, Revision K
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 © 2003-7 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 07/15/03 Initial Release
B 09/17/03 Revised package contents list & powering drawing.
C 01/20/04 Revised package contents. Added RS232 Connector pinout diagram.
D 04/12/04 Revised package contents and features lists.
E 07/13/04 Relabeled table for average transmit values, revised network access information, and added
note about Sprint network signal strength.
F 01/07/05 Added instructions for hazardous locations.
G 09/15/05 Added WEEE update, changed temperature, added humidity, changed modem maintenance,
added new warranty.
H 05/01/06 Added fuse replacement information for fused DC power cable.
I 06/28/06 Added AT command examples. Reorganized chapters.
J 04/24/07 Updated the Technical Support contact list. Removed the Multi-Tech Certified National
Activation Agent statement. Updated the Multi-Tech Warranty statement.
K 12/04/07 Updated the Hazardous Location text. Changed the Technical Support list. Revised the
Package Contents. Removed general Marketing material.
Trademarks and Logos
The Multi-Tech logo and MultiModem are registered trademarks of Multi-Tech Systems, Inc. Windows is a registered
trademark of Microsoft in the U.S. and other countries. Other trademarked products and registered trademarked
products mentioned in this publication belong to their respective owners.
Technical Support
Country By Email By Phone
Europe, Middle East, Africa: support@multitech.co.uk +(44) 118 959 7774
U.S., Canada, all others: support@multitech.com 800-972-2439 or 763-717-5863
World Headquarters
Multi-Tech Systems, Inc.
2205 Woodale Drive
Mounds View, Minnesota 55112
Phone: 763-785-3500 or 800-328-9717
Fax: 763-785-9874
Internet Address: http://www.multitech.com
Multi-Tech Systems, Inc. MultiModem CDMA Wireless Modem User Guide 2
Table of Contents
Contents
Chapter 1 – Product Description and Specifications................................................................................................4
Product Description.................................................................................................................................................4
Safety......................................................................................................................................................................5
General Safety.................................................................................................................................................5
RF Interference Issues.....................................................................................................................................5
Installation Instructions for Hazardous Locations.............................................................................................5
Vehicle Safety..................................................................................................................................................5
Maintenance of Your Modem...........................................................................................................................6
Your Responsibility..........................................................................................................................................6
Package Contents............................................................................................................................................6
Specifications..........................................................................................................................................................7
Functions – CDMA Modes......................................................................................................................................8
Electrical Characteristics .........................................................................................................................................8
Antenna/RF Specifications......................................................................................................................................9
Interfaces................................................................................................................................................................9
LEDs.......................................................................................................................................................................9
RS232 15-Pin Connector Pinout...........................................................................................................................10
AT Command Information.....................................................................................................................................10
Chapter 2 – Activation and Installation....................................................................................................................11
Activate Your Wireless Account............................................................................................................................11
Hook up the Antenna, Serial Cable, and Power....................................................................................................11
Optional – Attach the Modem to a Flat Surface ....................................................................................................14
Install the Modem Driver.......................................................................................................................................15
Chapter 3 – Using Your Wireless Modem ................................................................................................................16
Phone Numbers for the Wireless Modem .............................................................................................................16
Examples of Useful AT Commands ......................................................................................................................16
Verifying Signal Strength ...............................................................................................................................16
Checking Network Registration and Roaming Status.....................................................................................16
Checking the Modem’s Identity......................................................................................................................16
Establishing a Voice Call ...............................................................................................................................17
Establishing a Circuit-Switched Data (CSD) Connection ...............................................................................17
Answering a Circuit-Switched Data (CSD) Connection..................................................................................17
Using Short Message Services (SMS)..................................................................................................................18
SMS Examples ..............................................................................................................................................19
Internet Access.....................................................................................................................................................20
Connecting to the CDMA Network for Internet Access ..................................................................................20
Mobile PhoneTools ...............................................................................................................................................22
Chapter 4 – Troubleshooting and Frequently Asked Questions............................................................................23
Troubleshooting Examples....................................................................................................................................23
Situation A: The modem does not respond through the serial link.................................................................23
Frequently Asked Questions.................................................................................................................................24
Chapter 6 – Reference Information...........................................................................................................................26
Wireless Modem Reference Information...............................................................................................................26
Data Cable Diagram – No Voice....................................................................................................................26
Data Cable Diagram – with Voice..................................................................................................................27
Fused DC Power Cable Dimensions..............................................................................................................27
How to Change the Fuse...............................................................................................................................27
Appendix A – Warranty and Repairs........................................................................................................................28
Appendix B - Waste Electrical and Electronic Equipment (WEEE) Statement ..................................................... 30
Multi-Tech Systems, Inc. MultiModem CDMA Wireless Modem User Guide 3
Chapter 1 – Product Description and Specifications
Chapter 1 – Product Description
and Specifications
Product Description
The Multi-Tech MultiModem® CDMA 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 CDMA2000 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 Wireless Modem is based on industrystandard open interfaces, is fully type approved and can be desktop or panel mounted.
Models:
MTCBA-C-N1 is a generic 800/1900 MHz CDMA modem that must be programmed with Provisioning Information
(PRI) and a Preferred Roaming List (PRL). (A-key = Random) (USB). Recommended for developers.
MTCBA-C-N2 is an 800/1900 MHz CDMA modem provisioned for Sprint networks (USB). USA
MTCBA-C-N3 is an 800/1900 MHz CDMA modem provisioned for Verizon networks (USB). USA
MTCBA-C-N4 is an 800 MHz CDMA modem with R-UIM support. (USB).
MTCBA-C-N9 is a generic 800/1900 MHz CDMA modem must be programmed with Provisioning Information (PRI)
and a Preferred Roaming List (PRL). (A-key = 0). (USB). Recommended for developers.
MTCBA-C-N11 is an 800/1900 MHz CDMA modem with R-UIM support (RS-232).
MTCBA-C-N12 is an 800/1900 MHz CDMA modem provisioned for Bell Mobility (RS-232). Canada.
MTCBA-C-N14 is an 800/1900 MHz CDMA modem provisioned for Alltel networks (RS-232). 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
Multi-Tech Systems, Inc. MultiModem CDMA Wireless Modem User Guide 4
Chapter 1 – Product Description and Specifications
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.
Installation Instructions for Hazardous Locations
1. The modems are open devices intended for installation in an ultimate enclosure suitable for the intended
application.
2. THIS EQUIPMENT IS SUITABLE FOR USE IN CLASS I, DIVISION 2, GROUPS A, B, C, AND D OR NON-
HAZARDOUS LOCATIONS ONLY.
3. “WARNING – Explosion Hazard – Substitution of Components may Impair Suitability for Class I, Division 2”.
4. “WARNING – Explosion Hazard – Do not Disconnect Equipment Unless Power has been switched off or the
area is known to be Non-hazardous”.
5. “WARNING – Explosion Hazard – Do not replace fuse unless power has been switched off or the area is
known to be non-hazardous”
6. “WARNING – Do not install or remove SIM card unless power has been switched off or the area is known to
be non-hazardous”.
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.
Multi-Tech Systems, Inc. MultiModem CDMA Wireless Modem User Guide 5
Chapter 1 – Product Description and Specifications
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
Unbundled Package:
Modem and No Accessories
1 modem
1 mounting bracket
1 fused DC power cable
1 Quick Start Guide
1 MultiModem CD
Note: You must supply bracket screws
and an antenna.
1 modem
1 mounting bracket
1 antenna
1 serial cable
1 power supply (type depends on regional in which it will be used)
4 rubber feet for flat surface mounting
1 Quick Start Guide
1 MultiModem CD
Note: You must supply bracket screws.
Bundled Package:
Modem and Accessories
Multi-Tech Systems, Inc. MultiModem CDMA Wireless Modem User Guide 6
Chapter 1 – Product Description and Specifications
Specifications
General Specifications
Standards
Band, Frequency
Packet Data
Circuit Switched Data
Fax
Power Requirements
Mechanical Dimensions & Weight
Connectors & Fasteners Antenna Connection type: SMA jack
Operating Temperatures
Storage Temperatures
Humidity
Features
Certifications EMC: FCC Part 2, 15, 22, 24, EN 55022, EN 55024
CDMA2000 1xRTT operation
Dual-band 800/1900 CDMA;
800 MHz or 800/1900 MHZ with R-UIM support
Up to 153K bps forward and reverse
CDMA IS-95-A, IS-95B up to 14.4K bps
Class 2.0 Group 3
5 V to 32VDC
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)
Serial Connector: 15-pin RS232 SUB D female (DE15S)
Pins: RS232 link, audio link, RESET
Power Connector: 2.5mm miniature power jack
-20° to +55°C
-40° to +85°C
Relative humidity 20% to 90% noncondensing
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
AT command compatible
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
Safety: cUL, UL 60950, EN 60950
Network: CDG 1 & 2
Multi-Tech Systems, Inc. MultiModem CDMA Wireless Modem User Guide 7
Chapter 1 – Product Description and Specifications
Functions – CDMA Modes
Mode Description
Standard Dual Band 800/1900 CDMA
Interface Serial interface RS232. V.24/V.28 Autobauding function. AT command set based on
TIA/EIA/IS707.3, V.25ter and GSM 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 2400/4800/7200/9600 bps
Class 2.0 Group 3 compatible.
Electrical Characteristics
Electrical Characteristics
Switching the modem on/off The device is permanently powered (when connected to the power supply).
Voltage Range Voltage range : 5 to 32V DC
GND: 0V
Over voltage and Under voltage Correct operation of the Wireless MultiModem in communication mode is
not guaranteed if input voltage falls below 5V.
Input/output electrical characteristics for external connections
Parameters
Typ. Typ.
Input Supply Voltage 5 13.2 32 5 13.2 32 V
Input supply current in comm. mode at full Tx
power
Input supply current in comm. mode at average
Tx power
Input supply current in idle mode 50 20 20 50 20 20 mA
800 MHZ 1900 MHZ
600 230 100 650 240 100 mA
240 100 50 250 100 50 mA
Unit
Multi-Tech Systems, Inc. MultiModem CDMA Wireless Modem User Guide 8
Chapter 1 – Product Description and Specifications
Antenna/RF Specifications
Frequency
Impedance
VSWR
Typical Radiated Gain
CDMA 800 CDMA 1900
824 to 894 MHz 1850 to 1900 MHz
50 ohms
<2
0 dBi on azimuth plane
Interfaces
The Wireless MultiModem has several interfaces:
LED function indicating operating status
External antenna (via SMA connector)
Serial and control link (via 15 pins SUB D)
Power supply (via 2.5mm miniature power 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.
Multi-Tech Systems, Inc. MultiModem CDMA Wireless Modem User Guide 9
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