ATO CMM 900-3W - Manual (Page 2)

Page 2 of 2
Table of Contents
1. PRODUCT OVERVIEW ............................................3
1.1 Features: ..................................................................................... 3
1.2 Serial Port Pins: .......................................................................... 5
1.3 Applications:................................................................................ 5
1.4 Your package includes: .............................................................. 5
2. SPECIFICATIONS ...................................................6
3.0 MODEM SETUP AND REGISTRATION ......................6
3.1 What you need to provide: ......................................................... 6
3.2 Registering the Cellular Modem Unit: ........................................ 6
4. STARTING AND CONFIGURING THE MODEM .............7
4.1 DIP Switch Settings:................................................................... 7
4.2 Initializing the Cellular Modem:................................................... 7
4.3 Activating the Cellular Modem:................................................... 8
4.4 Using the Cellular Modem to Communicate.............................. 8
5. THEORY OF OPERATION ........................................9
5.1 Command State:......................................................................... 9
5.1.1 Command guidelines........................................................................................... 9
5.1.2 Result Codes...................................................................................................... 11
5.2 On-line State:............................................................................. 12
5.3 Transitioning Online State
à Command State:...................... 12
6. SUPPORTED AT COMMANDS ................................ 13
6.1 AT Commands common to all modes: ................................... 13
7. TROUBLESHOOTING ............................................ 15
8. FREQUENTLY ASKED QUESTIONS (FAQ) ............... 16
9. WARRANTY ........................................................ 18