Table of Contents
Multi-Tech Systems, Inc. MultiModem CDMA Wireless Modem User Guide
3
Contents
Chapter 1 – Product Description and Specifications ................................................................................................ 4
Product Description ................................................................................................................................................. 4
Safety ...................................................................................................................................................................... 5
General Safety ................................................................................................................................................. 5
RF Interference Issues ..................................................................................................................................... 5
Installation Instructions for Hazardous Locations ............................................................................................. 5
Vehicle Safety .................................................................................................................................................. 5
Maintenance of Your Modem ........................................................................................................................... 6
Your Responsibility .......................................................................................................................................... 6
Package Contents ............................................................................................................................................ 6
Specifications .......................................................................................................................................................... 7
Functions – CDMA Modes ...................................................................................................................................... 8
Electrical Characteristics ......................................................................................................................................... 8
Antenna/RF Specifications ...................................................................................................................................... 9
Interfaces ................................................................................................................................................................ 9
LEDs ....................................................................................................................................................................... 9
RS232 15-Pin Connector Pinout ........................................................................................................................... 10
AT Command Information ..................................................................................................................................... 10
Chapter 2 – Activation and Installation .................................................................................................................... 11
Activate Your Wireless Account ............................................................................................................................ 11
Hook up the Antenna, Serial Cable, and Power .................................................................................................... 11
Optional – Attach the Modem to a Flat Surface .................................................................................................... 12
Install the Modem Driver ....................................................................................................................................... 13
Chapter 3 – Using Your Wireless Modem ................................................................................................................ 18
Phone Numbers for the Wireless Modem ............................................................................................................. 18
Examples of Useful AT Commands ...................................................................................................................... 18
Verifying Signal Strength ............................................................................................................................... 18
Checking Network Registration and Roaming Status ..................................................................................... 18
Checking the Modem’s Identity ...................................................................................................................... 18
Establishing a Voice Call ............................................................................................................................... 19
Establishing a Circuit-Switched Data (CSD) Connection ............................................................................... 19
Answering a Circuit-Switched Data (CSD) Connection .................................................................................. 19
Using Short Message Services (SMS) .................................................................................................................. 20
SMS Examples .............................................................................................................................................. 21
Internet Access ..................................................................................................................................................... 22
Connecting to the CDMA Network for Internet Access .................................................................................. 22
Mobile PhoneTools ............................................................................................................................................... 23
Chapter 4 – Troubleshooting and Frequently Asked Questions ............................................................................ 24
Troubleshooting Examples .................................................................................................................................... 24
Situation A: The modem does not respond through the serial link ................................................................. 24
Frequently Asked Questions ................................................................................................................................. 24
Appendix A - Cables .................................................................................................................................................. 27
Data Cable Diagram – No Voice .................................................................................................................... 27
Data Cable Diagram – with Voice .................................................................................................................. 28
Fused DC Power Cable Dimensions .............................................................................................................. 28
How to Change the Fuse ............................................................................................................................... 28
Appendix B - Waste Electrical and Electronic Equipment (WEEE) Statement ..................................................... 29
