2.TT4031 (SE-GM29) Modem

2.1Description

The dual band EGSM 900/1800 MHz TT4031 (SE-GM29) is a GSM/GPRS serial modem. The modem is a powerful and flexible device that can be used in a wide range of telemetry and telematics applications that rely on the remote exchange of data, voice, SMS or faxes via the GSM cellular network.

Small and lightweight, the TT4031 (SE-GM29) has standard connectors and an integral SIM card reader making it easy and quick to integrate. As well as providing a standard RS232 serial communication interface the TT4031 (SE- GM29) also has an audio interface allowing an analogue handset to be connected. When the TT4031 (SE-GM29) is integrated into an external application, a wireless communications system is created.

A typical end-to-end system consists of a micro controller in an external application communicating, via the TT4031 (SE-GM29) modem, with a remote terminal or host using the GSM network. The micro controller uses a set of AT commands to control the modem, and to set up the end-to-end communications link, via its 9-way RS232 serial interface.

TT4031 (SE-GM29) serial modems are intended to be used by manufacturers, system integrators, application developers and developers of a wide range of equipment and business solutions, typically in the following fields:

Security and alarms

Vending

Monitoring and control

Utilities

Fleet Management

2.2Highlights

Dual band, EGSM 900/1800 MHz, GSM/GPRS serial modem Flexible plug-and-play device

Data: GPRS, HSCSD, CSD, SMS

Voice: full rate, enhanced full rate, half rate

SMS: mobile-originated, mobile-terminated, cell broadcast

Fax: Group 3, Classes 1 & 2

Owner’s Manual

Rev 1.0

Page 15 of 15