AT Command Manual for Sierra MC87XX Module
Table Of Contents
- 1: About This Guide
- 2: AT Password Commands
- 3: Modem Status, Customization, and Reset Commands
- 4: Diagnostic Commands
- 5: Test Commands
- 6: Memory Management Commands
- 7: Voice Commands
- 8: GPS Commands
- 9: STK Commands
- Appendix A: Test Frequencies / Channel Lists
- Appendix B: HSDPA / HSUPA Categories
- Appendix C: ASCII Table
- Appendix D: Module Customization
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Rev 2.9 Oct.08 63
5: Test Commands
• Introduction
• Command summary
• Command reference
• Sample AT command
sequences
Introduction
Toobtainregulatoryapprovalandcarrierapprovalsforyour
product,youmayberequiredtoperformtestsontheradio
componentoftheembeddedmodem.Thischapterdescribes
ATcommandsusedtoperformthosetests.
Inmostcasesthemodemmustbeinaparticularmodebefore
youcanissuetheATcommandstoperformparticulartests.
Therefore,theorderinwhichyouissuecertaincommandsis
important.ThreeATcommandsareimportantinsettingthe
mode:
• !DAFTMACT—putsthemodeminfactorytestmode(anon‐
signalingmode).YoumustissueAT!DAFTMACTbefore
issuinganyothercommandthatstartswith“
!DA”.
• !DASBAND—selectsthefrequencyband.
YoumustexecuteAT!DASBANDtoselectaWCDMAband
inordertorunthesecommandsthattesttheWCDMA
transceiver:
· !DAWGRXAGC
· !DAWGAVGAGC
· !DAWSTXCW
· !DAWSPARANGE
· !DASTXOFF
· !DASTXON
· !DAWSCONFIGRX
YoumustexecuteAT!DASBANDtoselectaGSMbandin
ordertorunthesecommandsthattesttheGSMtrans
‐
ceiver:
· !DAGSRXBURST
· !DAGSRXCONT
· !DAGGRSSI
· DAGGAVGRSSI
· !DAGGRSSIRAW
· !DAGSTXFRAME
• !DASCHAN—selectsthechannel.Thiscommandmustbe
runafteryouhaveselectedthebandwith !DASBAND.(If
youdon’tselectachannel,themodemusesadefault.)
AttheendofthischapterthereareSampleATcommand
sequencesthatshowhowtoperformcertaintests.