User guide

Multi-Tech Systems, Inc. CallFinder GSM Cellular Gateway 3
Table of Contents
CHAPTER 1 – INTRODUCTION AND PRODUCT DESCRIPTION ......................................................................................... 4
Introduction ...................................................................................................................................................................... 4
Application Example ....................................................................................................................................................... 4
Ship Kit Contents ............................................................................................................................................................. 5
Mechanical Mounting ...................................................................................................................................................... 5
Safety Warnings ............................................................................................................................................................... 6
Safety Warnings Telecom .......................................................................................................................................... 6
RF Interference Issues ............................................................................................................................................... 7
Specifications .................................................................................................................................................................. 7
AT Commands ................................................................................................................................................................. 8
CHAPTER 2 – GETTING STARTED ............................................................................................................................... 9
Step 1. Obtain a Wireless Account ................................................................................................................................. 9
Step 2. Set Voice/Data Switch and Connect Antenna, Serial Cable, & Power .......................................................... 10
Front Panel LEDs ..................................................................................................................................................... 11
CallFinder LED Descriptions..................................................................................................................................... 11
Step 3. Using AT Commands to Verify Signal Strength and Network Registration ................................................. 11
3A. Open the Communications Program .................................................................................................................. 11
3B. Verify Signal Strength ........................................................................................................................................ 13
3C. Checking Network Registration and Roaming Status ........................................................................................ 13
Step 4. A Reminder about FXO/FXS Status ................................................................................................................. 13
CHAPTER 3 – WIRELESS ANTENNAS ........................................................................................................................ 14
The Antenna ................................................................................................................................................................... 14
GSM Antennas ......................................................................................................................................................... 14
GSM Radio Characteristics ...................................................................................................................................... 14
Antenna .................................................................................................................................................................... 14
CHAPTER 4 – WIRELESS CALLFINDER APPLICATION OPTIONS .................................................................................. 15
CHAPTER 5 – TROUBLESHOOTING ............................................................................................................................ 22
General Troubleshooting Tips ...................................................................................................................................... 22
GSM Specific Troubleshooting Tips ............................................................................................................................ 22
APPENDIX A – WASTE ELECTRICAL AND ELECTRONIC EQUIPMENT ............................................................................ 23