DS-GSMT35I-2

Oct ’07

www.rfsolutions.co.uk

©

2007 REG No 277 4001, ENGLAND.

Page 2

Table of Contents

1

Key Features ..................................................................................................................................................3

2

Interface description .......................................................................................................................................4

2.1

Power Supply..................................................................................................................................4

2.2

RS232 Interface..............................................................................................................................4

2.3

SIM Interface ..................................................................................................................................5

2.4

Radio Interface ...............................................................................................................................5

3

Operating Modes............................................................................................................................................6

3.1

Status LED......................................................................................................................................6

4

Basic Setup Information .................................................................................................................................7

4.1

Modem functionality Test................................................................................................................7

4.2

Basic AT Command List .................................................................................................................9

5

Mechanical Characteristics ..........................................................................................................................10