Multi Tech Systems Network Router MTCBA C User Manual

MultiModemTM CDMA  
External Wireless Modem  
(Data/Fax/Voice)  
MTCBA-C  
User Guide  
 
Contents  
CHAPTER 1: DESCRIPTION AND SPECIFICATIONS......................................................................................4  
PRODUCT DESCRIPTION ..............................................................................................................................................4  
Basic Package ....................................................................................................................................................................... 4  
Bundled Package................................................................................................................................................................... 4  
APPLICATION OVERVIEW............................................................................................................................................6  
SPECIFICATIONS..........................................................................................................................................................8  
CHAPTER 2: INSTALLATION..............................................................................................................................11  
MECHANICAL MOUNTING.........................................................................................................................................11  
ELECTRICAL INSTALLATION & CONFIGURATION ......................................................................................................13  
MOBILE PHONETOOLS ..............................................................................................................................................15  
DIRECT MODEM INSTALLATION................................................................................................................................15  
VERIFYING SIGNAL STRENGTH .................................................................................................................................15  
VERIFYING NETWORK REGISTRATION ......................................................................................................................15  
TESTING THE CONFIGURATION .................................................................................................................................16  
CHAPTER 3: TROUBLESHOOTING...................................................................................................................17  
SITUATION A: THE MODEM DOES NOT ANSWER THROUGH THE SERIAL LINK .............................................................17  
SITUATION B: THE MODEM ALWAYS RETURNS «ERROR» WHEN TRYING TO ISSUE A COMMUNICATION ....................18  
SITUATION C: THE MODEM ALWAYS RETURNS «NO CARRIER» WHEN TRYING TO ISSUE A COMMUNICATION ............19  
CHAPTER 4: SAFETY ............................................................................................................................................20  
GENERAL SAFETY.....................................................................................................................................................20  
VEHICLE SAFETY ......................................................................................................................................................20  
MAINTENANCE OF YOUR MODEM.............................................................................................................................21  
YOUR RESPONSIBILITY .............................................................................................................................................21  
CHAPTER 5: WARRANTY & REPAIRS POLICIES ........................................................................................22  
CHAPTER 6 - REFERENCE INFORMATION....................................................................................................24  
WIRELESS MODEM REFERENCE INFO........................................................................................................................24  
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Chapter 1 - Description and Specifications  
Chapter 1: 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. Designed for global use, it offers  
standards-based multi-band CDMA2000 1x 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 is based on industry-standard open interfaces, and can be desktop or panel mounted.  
Package Contents  
Basic Package  
one modem  
two holding bridles (mounting brackets)  
one fused power cable  
one Quick Start Guide  
Bundled Package  
All Basic Package items except the fused power cable, plus  
one RS232 15-to-9 pin cable  
four adhesive-backed rubber feet for table-top mounting  
one antenna  
one universal power supply with power cord  
one product CD  
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)  
Parts to be Supplied by End User  
Mounting screws (screw shaft diameter = .17” max.)  
Antenna  
The Wireless MultiModem is shipped with an antenna suited for it. However, if the antenna supplied does not  
meet your application requirements (for size, shape, mounting style, etc.), you must supply an antenna  
yourself. In general, the antenna used must be both of the correct frequency and of a style appropriate to  
the application. See the Antenna/RF Specifications section below.  
Antenna/RF Specifications  
CDMA 800  
CDMA 1900  
824 to 894 MHz  
1850 to 1990 MHz  
Frequency  
Impedance  
VSWR  
50 ohms  
<1.5  
Typical Radiated  
Gain  
0 dBi on azimuth plane  
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Chapter 1 - Description and Specifications  
AT Command Info  
AT commands for the CDMA wireless modem are published in a separate Reference Guide included on  
the product CD and posted on the Multi-Tech web site.  
Phone Number for the Wireless Modem  
Every wireless modem will have its own unique phone number.  
Network Access  
The network access arrangements to be specified in Windows Dial-Up Networking (of the computer that  
the wireless modem is serving) will vary according to the type of wireless service used.  
For point to point data, a circuit-switched data connection is used. The user can set up DUN to make  
a conventional V.32bis modem connection to any terminating modem at the other end. The phone  
number specified in DUN can be one supplied by the wireless service provider or another phone  
number related to a different dialup modem service (e.g., a dialup modem service phone number from  
any commercial or private dialup network).  
For CDMA 1x data, a single DUN number is generally used by all of a wireless provider’s subscribers  
throughout its area of coverage (regional, nationwide, continental, etc.). Rather than being a literal  
phone directory number, as in conventional DUN, this is a code that gives the modem Internet  
access.  
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  
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Chapter 1 - Description and Specifications  
Application Overview  
Application Types  
With packet data speeds up to 153K bps, the MultiModem CDMA is targeted at applications that periodically  
need to send or receive data over a wireless network. It is an ideal solution for:  
Appliances  
Remote Diagnostics  
Remote Metering  
ATM Terminals  
Automotive  
Security Systems  
Data Collection  
Gas Pumps  
Vending/Gaming Machines  
Other devices requiring wireless  
connectivity.  
Industrial and Medical Remote  
Monitoring Systems  
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.  
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Chapter 1 - Description and Specifications  
Benefits/Features in Applications  
Short Development Time. The MultiModem CDMA 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 provides telephony and Dual Tone Multi Frequency (DTMF)  
functionality as well as QCELP (13K) and echo cancellation.  
Short Message Services. The MultiModem CDMA offers SMS features such cell broadcast, Over the Air  
Activation (OTA), OTASP, and OTAPA. The MultiModem CDMA is SMS Mobile Originated and SMS Mobile  
Terminated.  
Compatible Supplementary Services. The MultiModem CDMA is compatible with supplementary services  
such as call forwarding, call barring, multiparty, call waiting and call hold, calling line identification, closed user  
group and call transfer.  
Management Features. The MultiModem CDMA provides advanced management features including phone  
book management, fixed dialing number, real time clock and alarm management.  
Industry-standard Modem Commands. The MultiModem CDMA provides industry-standard AT-style  
commands for ease of integration into your existing software application.  
Industrial Chassis. The MultiModem CDMA 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 indicate the modem’s operational status.  
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  
Data  
Mobile Originated (MO) and Mobile Terminated (MT),  
Over the Air Activation (OTA), OTASP, and OTAPA.  
Asynchronous 2400, 4800, 9600 and 14400 bps.  
Data Transparent and Non Transparent modes.  
Mode 3.1 KHz (PSTN) and V110 (ISDN).  
2400/4800/7200/9600 bps  
Fax  
Class 2. Group 3 compatible.  
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Chapter 1 - Description and Specifications  
Specifications  
General Specifications  
Power Requirements  
5 V to 32VDC; 400mA Average @5V,  
700mA Maximum @ 5V  
Mechanical Dimensions &  
Weight  
Connectors & Fasteners  
4.3" w x 2.4" h x 0.94" d; 4.2 oz.  
(11 cm x 6.1 cm x 2.4 cm; 120 g)  
Antenna Connection type: SMA jack  
Serial Connector: 15-pin RS232 SUB D  
female (DE15S)  
Pins: RS232 link, audio link, RESET  
Power Connector: 2.5mm miniature power  
jack  
Operating Temperatures  
Certifications  
-30 to +70°C  
EMC: FCC Part 2, 15, 22, 24, EN 55022 &  
EN 55024  
Safety: UL 60950, EN 60950  
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  
Overvoltage and  
Undervoltage  
Correct operation of the Wireless  
MultiModem in communication mode  
is not guaranteed if input voltage falls  
below 5V.  
INSTALLATION/ START- UP  
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Electrical Characteristics  
Chapter 1 - Description and Specifications  
Input/output electrical characteristics for external connections  
800 MHZ  
1900 MHZ  
Parameters  
Unit  
Typ.  
13.2  
230  
Typ  
13.2  
240  
Input Supply Voltage  
Input supply current in  
comm. mode at full Tx  
power  
5
600  
32  
100  
5
650  
32  
100  
V
mA  
Input supply current in  
comm. mode at full Tx  
power  
240  
50  
100  
20  
50  
20  
250  
50  
100  
20  
50  
20  
mA  
mA  
Input supply current at idle  
LED Indicators  
Lit when modem is transmitting data.  
Lit when modem is receiving data.  
Lit when data connection has been  
established.  
TD. Transmit Data.  
RD. Receive Data.  
CD. Carrier Detect.  
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.  
Commonly called “Data Terminal Ready.”  
This is a readiness signal from the PC.  
Indicates presence of DC power when lit.  
TR. Terminal Ready.  
PWR. Power.  
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Chapter 1 - Description and Specifications  
RS232 15-Pin Connector Pinout  
5
1
10  
6
15  
11  
PIN  
1
6
EIA  
DCD  
RX  
CCIT  
109  
104  
Designation  
Data Carrier Direct  
Receive Data (out)  
Transmit Data  
2
TX  
103  
8
9
7
12  
11  
13  
4
DTR  
GND  
DSR  
RTS  
CTS  
RI  
108.2  
Data Terminal Ready  
Signal Ground  
Data Set Ready  
Request to Send  
Clear to Send  
RS 232  
107  
105  
106  
125  
Ring Indicator  
MICROPHONE  
(+)  
Audio  
Reset  
5
MICROPHONE (-)  
SPEAKER (+)  
SPEAKER (-)  
RESET  
10  
15  
14  
To reset, connect to GND  
momentarily. Open for  
normal operation.  
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Chapter 2 - Installation  
Chapter 2: Installation  
Mechanical Mounting  
To mount the Wireless MultiModem, do the following:  
1. Obtain mounting screws (two are needed) that are appropriate for the  
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Chapter 2 - Installation  
3. Slide the mounting bridles into the corresponding slots on the back side of the MultiModem chassis.  
4. Attach the MultiModem with two screws to the mounting surface at the desired location on the equipment.  
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Chapter 2 - Installation  
Electrical Installation & Configuration  
The wireless MultiModem requires the power supply connection to begin operation. To install the modem, do  
the following:  
1. Connect a suitable antenna to the SMA connector (see “Antenna/RF Specifications” on page 4).  
Antenna Connector  
(SMA type)  
2. Connect both ends of the serial and control cable (15-pin Sub D connector on the modem end).  
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Chapter 2 - Installation  
3. Plug the power supply cable into the wireless Multimodem.  
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Chapter 2 - Installation  
Mobile PhoneTools  
For initial configuration of your wireless device, Multi-Tech offers a Windowsbased mobile PhoneTools  
application.  
To load mobile PhoneTools, click on the mobile PhoneTools icon on your MultiModem CD and follow the on-  
screen prompts.  
Direct Modem Installation  
To install the Wireless MultiModem directly into the computer's Windows OS so it is independent of the mobile  
Phonetools program, use the "Add Modem" command or equivalent for your OS. During this installation, you will  
need to browse to the MultiModem's INF file (using the “Have Disk” option in the installation process). This INF  
file is in the root directory of the Product CD.  
Verifying Signal Strength  
The Wireless MultiModem establishes a call if the signal is sufficiently strong. To verify the signal  
strength, do the following:  
1. Using the Hyperterminal program at the computer to which the Wireless MultiModem is connected, type  
the AT command AT+CSQ. A value for the received signal strength will be returned.  
2. Verify the result with the following chart:  
Signal Strength Verification  
Value of signal strength  
Signal strength  
(AT+CSQ response) (RSSI)  
10 - 31  
0 - 9  
99  
Sufficient  
Weak or Insufficient  
Insufficient  
Verifying Network Registration  
In this procedure, you will verify that the Wireless MultiModem has been registered on the wireless network.  
To do so, you will use the common communications program Hyperterminal.  
1. Using the Hyperterminal program at the computer to which the Wireless MultiModem is connected, type  
the AT command AT+CREG?  
A value for the modem’s network registration status will be returned.  
2. Verify the result with the following chart:  
Network Registration Verification  
Value  
0, 1  
Network Registration Status  
Yes  
0, 5  
Yes  
(registered roaming)  
Note: If the modem is not registered, perform the procedure for Verifying Signal Strength to determine the  
strength of the received signal.  
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Chapter 2 - Installation  
Testing the Configuration  
Description  
AT  
Response Returned  
Comments  
Commands  
AT+CPIN  
=1234  
OK  
PIN Code accepted  
Incorrect PIN Code  
PIN already entered (with +CMEE : 1 mode)  
modem synchronized on the network  
synchronization lost, re-synchronization  
attempt  
Enter PIN Code  
+CME ERROR : 16  
+CME ERROR : 3  
CREG = <mode>, 1  
CREG = <mode>, 2  
AT + CREG ?  
Module synchro  
checking  
CREG = <mode>, 0  
Modem not synchronized on network. No  
synchronization attempt  
Receiving an  
incoming call  
RING  
OK  
ATA  
Answer the call.  
ATD1234;  
Don’t forget the “;” at the end for “voice”  
calls.  
Initiate a call  
OK  
Communication established  
PIN Code not entered (with +CMEE : 1  
mode)  
CME ERROR :11  
CME ERROR :3  
AOC credit (Advice of Charge tells the user  
how much a call will cost) has been  
exceeded or a communication is already  
established.  
Initiate an  
emergency call  
Communication  
loss  
ATD112;  
OK  
Don’t forget the “;” at the end for “voice”  
calls.  
NO CARRIER  
Hang up  
ATH  
OK  
OK  
Store the  
parameters in non-  
volatile memory  
AT&W  
The communications program has saved the  
configuration settings in non-volatile  
memory.  
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Chapter 3 - Troubleshooting  
Chapter 3: Troubleshooting  
Situation A: The modem does not answer through the serial link  
If the Wireless MultiModem does not answer through the serial link upon an attempted transmission of data or  
voice signals, see the table below for possible causes and solutions.  
Solutions for ‘no connection through serial link’ situation  
If the modem  
Then ask …  
Action  
returns …  
(nothing)  
Is the modem powered correctly?  
Provide a power supply in the range of 5 to  
32Vdc.  
Is the serial cable properly connected to Connect cable per step 2 of the ”Electrical  
the modem and PC sockets?  
Installation and Configuration” procedure.  
Verify cable pinout per”RS232 15-Pin  
Connector Pinout” table, esp Rx & Tx  
connections.  
Verify reception & transmission.  
Is the communication program  
properly configured?  
In communications program, verify that  
modem parameters have been set to  
the values shown here:  
Data Bits = 8  
Parity = none  
Stop Bits = 1  
Baud = 115200 bps  
Is another program interfering with  
the communication program?  
Close any such application program.  
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Chapter 3 - Troubleshooting  
Situation B: The modem always returns «Error» when trying to  
issue a communication  
If the Wireless MultiModem returns a message of error upon an attempted transmission of data or voice  
signals, see the table below for possible causes and solutions.  
Solutions for “error” message situations  
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Chapter 3 - Troubleshooting  
Situation C: The modem always returns «No carrier» when  
trying to issue a communication  
Solutions for “no carrier” message  
Then ask …  
If the modem  
returns …  
Action  
no carrier(esp. for  
data communi-  
cation)  
Is the selected  
bearer type  
supported by the  
called party?  
Type AT+CEER to view the extended error code  
(see “Extended Error Report (+CEER) in the AT  
Command guide).  
Be sure that the selected bearer type is supported  
by the called party.  
Is the selected  
bearer type  
supported by the  
network?  
Be sure that the selected bearer type is supported  
by the network.  
If no success, try bearer selection type:  
AT+CBST=0,0,3  
If the modem  
returns  
Then ask …  
Action  
no carrier  
(esp. for voice  
communi-cation)  
Be sure that the semicolon character (“;”) is typed  
immediately after the phone number in the AT  
command; e.g., ATD######;  
type AT+CBST=0,0,3  
Is the received  
signal strong  
enough?  
See “Signal Strength Verification”.  
Is the antenna  
properly  
See “Antenna/RF Specifications”.  
connected?  
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Chapter 4 - Safety  
Chapter 4: 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  
and generally in such a way that 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. or 8 in. of the  
body of the user) and such uses are strictly prohibited.  
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 Wireless MultiModem while driving, unless equipped with a correctly installed vehicle kit  
allowing ‘Hands-Free’ Operation.  
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 the installation has been  
performed by qualified personnel. 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.  
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Chapter 4 - Safety  
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 or humidity is  
high.  
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 spilt beverages. It is not waterproof.  
Do not abuse your Wireless MultiModem by dropping, knocking, or violently shaking it. Rough handling can  
damage it.  
Do not place the Wireless MultiModem alongside computer discs, credit or travel cards, or other magnetic  
media. The information contained on discs or cards may be affected by the phone.  
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’s 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.  
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Chapter 5 – Warranty & Repair Policies  
Chapter 5: Warranty & Repairs Policies  
Multi-Tech Warranty Statement  
Multi-Tech Systems, Inc., (hereafter “MTS”) warrants that its products will be free from defects in material or  
workmanship for a period of two, five, or ten years (depending on model) from date of purchase, or if proof of  
purchase is not provided, two, five, or ten years (depending on model) from date of shipment.  
MTS MAKES NO OTHER WARRANTY, EXPRESS OR IMPLIED, AND ALL IMPLIED WARRANTIES OF  
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED.  
This warranty does not apply to any products which have been damaged by lightning storms, water, or power surges  
or which have been neglected, altered, abused, used for a purpose other than the one for which they were  
manufactured, repaired by Customer or any party without MTS’s written authorization, or used in any manner  
inconsistent with MTS’s instructions.  
MTS’s entire obligation under this warranty shall be limited (at MTS’s option) to repair or replacement of any products  
which prove to be defective within the warranty period or, at MTS’s option, issuance of a refund of the purchase price.  
Defective products must be returned by Customer to MTS’s factory — transportation prepaid.  
MTS WILL NOT BE LIABLE FOR CONSEQUENTIAL DAMAGES, AND UNDER NO CIRCUMSTANCES WILL ITS  
LIABILITY EXCEED THE PRICE FOR DEFECTIVE PRODUCTS.  
Repair Procedures for U.S. and Canadian Customers  
In the event that service is required, products may be shipped, freight prepaid, to our Mounds View, Minnesota  
factory:  
Multi-Tech Systems, Inc.  
2205 Woodale Drive  
Mounds View, MN 55112  
Attn: Repairs, Serial # ____________  
A Returned Materials Authorization (RMA) is not required. Return shipping charges (surface) will be paid by MTS to  
destinations in U.S. and Canada.  
Please include, inside the shipping box, a description of the problem, a return shipping address (must have street  
address, not P.O. Box), your telephone number, and if the product is out of warranty, a check or purchase order for  
repair charges.  
For out of warranty repair charges, go to www.multitech.com/DOCUMENTS/Company/warranty/  
Extended two-year overnight replacement service agreements are available for selected products. Please call MTS  
customer service at (888) 288-5470 or visit our web site at www.multitech.com/PARTNERS/Programs/orc/ for details  
on rates and coverage’s.  
Please direct your questions regarding technical matters, product configuration, verification that the product is  
defective, etc., to our Technical Support department at (800) 972-2439 or email support@multitech.com. Please  
direct your questions regarding repair expediting, receiving, shipping, billing, etc., to our Repair Accounting  
department at (800) 328-9717 or (763) 717-5631, or email mtsrepair@multitech.com.  
Repairs for damages caused by lightning storms, water, power surges, incorrect installation, physical abuse, or user-  
caused damages are billed on a time-plus-materials basis.  
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Chapter 5 – Warranty & Repair Policies  
Repair Procedures for International Customers (Outside U.S.A. and Canada)  
Your original point of purchase Reseller may offer the quickest and most economical repair option for your Multi-Tech  
product. You may also contact any Multi-Tech sales office for information about the nearest distributor or other repair  
service for your Multi-Tech product. The Multi-Tech sales office directory is available at  
In the event that factory service is required, products may be shipped, freight prepaid to our Mounds View, Minnesota  
factory. Recommended international shipment methods are via Federal Express, UPS or DHL courier services, or by  
airmail parcel post; shipments made by any other method will be refused. A Returned Materials Authorization (RMA)  
is required for products shipped from outside the U.S.A. and Canada. Please contact us for return authorization and  
shipping instructions on any International shipments to the U.S.A. Please include, inside the shipping box, a  
description of the problem, a return shipping address (must have street address, not P.O. Box), your telephone  
number, and if the product is out of warranty, a check drawn on a U.S. bank or your company’s purchase order for  
repair charges. Repaired units shall be shipped freight collect, unless other arrangements are made in advance.  
Please direct your questions regarding technical matters, product configuration, verification that the product is  
defective, etc., to our Technical Support department nearest you or email support@multitech.com. When calling the  
U.S., please direct your questions regarding repair expediting, receiving, shipping, billing, etc., to our Repair  
Accounting department at +(763) 717-5631 in the U.S.A., or email mtsrepair@multitech.com.  
Repairs for damages caused by lightning storms, water, power surges, incorrect installation, physical abuse, or user-  
caused damages are billed on a time-plus-materials basis.  
Repair Procedures for International Distributors  
International distributors should contact their MTS International sales representative for information about the repairs  
for their Multi-Tech product.  
Please direct your questions regarding technical matters, product configuration, verification that the product is  
defective, etc., to our International Technical Support department at +(763)717-5863. When calling the U.S., please  
direct your questions regarding repair expediting, receiving, shipping, billing, etc., to our Repair Accounting  
department at +(763) 717-5631 in the U.S.A. or email mtsrepair@multitech.com.  
Repairs for damages caused by lightning storms, water, power surges, incorrect installation, physical abuse, or user-  
caused damages are billed on a time-plus-materials basis.  
Replacement Parts  
SupplyNet, Inc., can supply you with replacement power supplies, cables and connectors for selected Multi-Tech  
products. You can place an order with SupplyNet via mail, phone, fax or the Internet at the following addresses:  
Mail:  
SupplyNet, Inc.  
614 Corporate Way  
Valley Cottage, NY 10989  
800 826-0279  
Phone:  
Fax:  
914 267-2420  
Email:  
Internet:  
Multi-Tech Systems, Inc. MultiModem CDMA User Guide  
23  
 
Chapter 6 - Reference Information  
Chapter 6 - Reference Information  
Wireless Modem Reference Info  
Reference Documents: AT Commands CDMA Reference Guide S000294A  
ETSI contact :  
ETSI Secretariat  
F-06921 Sophia Antipolis Cedex, France  
e-mail : secretariat@etsi.fr  
Service :  
The AT commands manual is available on the MultiTech web site:  
Disclaimer  
Wireless MultiModem specifications and manuals are subject to change without notice. MTS assumes no liability  
for damage incurred directly or indirectly from errors, omissions or discrepancies between the Wireless  
MultiModem and its manual.  
Multi-Tech Systems, Inc. MultiModem CDMA User Guide  
24  
 

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