Multitech Multimodem MTCBA-G-F2 Manuale utente

MultiModemäGSM/GPRS

External Wireless Modem

(Data/Fax/Voice)

MTCBA-G-F1

MTCBA-G-F2

UserGuide

User Guide for MultiModem GSM/GPRS

External Data/Fax/Voice Wireless Modem

Models MTCBA-G-F1 & MTCBA-G-F2

P/N 82001220, Revision A

without prior expressed written permission from 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.

Revision Date Description

A 5/01/03 Initial Release, Rev A.

Multi-Tech, MultiMobile and the Multi-Tech logo are trademarks of Multi-Tech

Systems, Inc. Windows is a registered trademarks of Microsoft in the U.S. and

other countries. Other trademarks and trade names mentioned in this

publication belong to their respective owners.

Contents

PRODUCT DESCRIPTION 5

Package Contents 6

Interfaces 6

Parts to be Supplied by Wireless Service Provider 7

Parts to be Supplied by End User 7

Radio Characteristics 8

Accessory Kit 9

AT Command Info 10

Phone Number for the Wireless Modem 10

Network Access 10

Features 12

APPLICATION OVERVIEW 13

Application Types 13

Benefits/Features in Applications 15

Functions – GSM Modes 18

SPECIFICATIONS 19

General Specifications 19

Electrical Characteristics 20

Input/output electrical characteristics for external

connections 21

Input/output electrical characteristics (cont’d) 22

LED Indicators 23

RS232 15-Pin Connector Pinout 24

GETTING STARTED WITH YOUR WIRELESS MULTIMODEM 25

Mechanical Mounting 25

Electrical Installation & Configuration 28

Mobile Phonetools 34

Verifying signal strength 35

Verifying network registration 36

Testing the Configuration 37

Testing the Configuration (continued) 38

Testing the Configuration (continued) 39

TROUBLESHOOTING 40

Situation A: The modem does not answer through the

serial link 40

Situation B: The modem always returns «Error» when

trying to issue a communication 42

Situation C: The modem always returns «No carrier»

when trying to issue a communication 47

SAFETY 51

General Safety 51

Vehicle Safety 53

Maintenance of GSM Modem 53

Your Responsibility 54

WARRANTY & REPAIRS POLICIES 55

Warranty 55

Repairs 56

Repair Procedures for U.S. and Canadian Customers 56

Repair Procedures for International Customers

(Outside U.S.A. and Canada) 58

Repair Procedures for International Distributors 59

WIRELESS MODEM REFERENCE INFO 60

Product Description

The Multi-Tech MultiModem GSM/GPRS 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

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 GSM/GPRS is based on industry-

standard open interfaces, is fully type approved,

and can be desktop or panel mounted.

Product Description

Package Contents

·one modem

·two holding bridles (mounting brackets)

·one RS-232 15-to-9-pin cable

·one power supply cable with fuse

·one User Manual (this document)

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)

·SIM card holder

Product Description

Parts to be Supplied by Wireless Service

Provider

·Subscriber Identity Module (SIM)

configuration chip

The SIM contains information specific to

your wireless account and its features.

Parts to be Supplied by End User

·mounting screws

(screw shaft diameter = .17” max.)

·antenna

The antenna used must be both of the

correct frequency and of the style

appropriate to the application.

Product Description

Radio Characteristics

GSM 850 EGSM 900

Frequency RX 869 to 894 MHz 925 to 960 MHz

Frequency TX 824 to 849 MHz 880 to 915 MHz

RF Power Stand 2W at 12.5% duty

cycle 2W at 12.5% duty

cycle

Impedance 50 ohms

VSWR <2

Typical Radiated

Gain 0 dBi on azimuth plane

GSM 1800 GSM 1900

Frequency RX 1805 to 1880 MHz 1930 to 1990 MHz

Frequency TX 1710 to 1875 MHz 1850 to 910 MHz

RF Power Stand 1W at 12.5% duty

cycle 1W at 12.5% duty

cycle

Impedance 50 ohms

VSWR <2

Typical Radiated

Gain 0 dBi on azimuth plane

Product Description

Accessory Kit

A Wireless MultiModem Accessory Kit is

available. Generally speaking, it is useful to

have one or two kits to configure a group or

fleet of Wireless MultiModem units

(generally, you will not need one kit for every

modem). The kit includes an antenna, a

power supply and a product CD. The product

CD contains an AT Command manuals, other

documentation, and modem software.

Product Description

AT Command Info

This manual describes a minimal set of AT

commands that are adequate for configuring

many common application situations. A

complete set of AT command definitions can

be found in the AT Command manuals (one

for GSM/GPRS and one for CDMA). These

manuals are available on the MultiTech web

site or on the Accessory Kit CD.

Phone Number for theWireless Modem

·Every wireless modem will have its own

unique phone number.

·The wireless modem’s phone number may

simply be told to the subscriber or be on the

SIM or both. Wireless provider

implementations may vary.

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.

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