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 ....................................................................................................14
Install the Modem Driver .......................................................................................................................................15
Chapter 3 – Using Your Wireless Modem ................................................................................................................16
Phone Numbers for the Wireless Modem .............................................................................................................16
Examples of Useful AT Commands ......................................................................................................................16
Verifying Signal Strength ...............................................................................................................................16
Checking Network Registration and Roaming Status.....................................................................................16
Checking the Modem’s Identity ......................................................................................................................16
Establishing a Voice Call ...............................................................................................................................17
Establishing a Circuit-Switched Data (CSD) Connection ...............................................................................17
Answering a Circuit-Switched Data (CSD) Connection ..................................................................................17
Using Short Message Services (SMS) ..................................................................................................................18
SMS Examples ..............................................................................................................................................19
Internet Access .....................................................................................................................................................20
Connecting to the CDMA Network for Internet Access ..................................................................................20
Mobile PhoneTools ...............................................................................................................................................22
Chapter 4 – Troubleshooting and Frequently Asked Questions............................................................................23
Troubleshooting Examples....................................................................................................................................23
Situation A: The modem does not respond through the serial link .................................................................23
Frequently Asked Questions .................................................................................................................................24
Chapter 6 – Reference Information...........................................................................................................................26
Wireless Modem Reference Information ...............................................................................................................26
Data Cable Diagram – No Voice ....................................................................................................................26
Data Cable Diagram – with Voice ..................................................................................................................27
Fused DC Power Cable Dimensions..............................................................................................................27
How to Change the Fuse ...............................................................................................................................27
Appendix A – Warranty and Repairs ........................................................................................................................28
Appendix B - Waste Electrical and Electronic Equipment (WEEE) Statement .....................................................30
