HT800 AT Command Reference

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1、CDMADATATERMINALGM800ATCommandSetApplicationInformation01-GM800-1-X1AboutthisGuideCDMA(CodeDivisionMultipleAccess)DataModuleoperatingfunctionsareimplementedasATcommands,andareavailableviatheDataModuleserialinterface.ThisreferencemanualdescribestheATcommandssupportedbyCDMADataModule.The

2、followingsectionsdefinetheCDMADataModuleoperatingmodes.1DefinestheCommandModeandDataMode2CommandLineSyntax–DefinesATcommandsprefix,body,andterminationcharacter3ConcatenatingATCommands–MultipleATcommands4WorkingwithCommandLines5CommandSummarySummarizesthecommandsthatCDMADataModulesuppor

3、ts6CommandDescriptionsDefinestheATCommands,CDMACommands,21OperatingModesTheCDMADataModuleoperatesinoneofthefollowingmodes:òCommandMode-EnablesthetransmissionofATcommandstotheCDMADataModuleviaitsserialinterface.òDataMode-AllowstheCDMADataModuletoexchangedataacrossthecommunicationslinewi

4、tharemotemodem.TheCDMADataModuleenterstheCommandModeautomaticallywhenthemodulestation(MS):òIsturnedonòLosesthedataconnectionwitharemotemodemòDetectsanOn-to-OfftransitionontheDataTerminalReady(DTR)circuitwiththe&D1commandineffect.Whenthisoccurs,theCDMADataModulereturnstoCommandModewitho

5、uthangingup.TohanguptheCDMADataModule,sendtheHcommandor,ifthe&D2commandisineffect,usethesoftwaretoturnofftheDTR.òDetectsanOn-to-OfftransitionontheDTRcircuitwiththe&D2commandineffect.Whenthisoccurs,theCDMADataModulehangsup,andreturnstoCommandMode.òDetectsanOn-to-OfftransitionontheDTRcir

6、cuitwiththe&D3commandineffect.Whenthisoccurs,theCDMADataModule:VHangsupVResetsitselfVLoadstheactiveconfigurationfromnonvolatilememoryVReturnstoCommandMode1.1EnteringDataModeTheCDMADataModuleautomaticallyentersDataModeaftermakingadataconnectionwitharemotemodem.ButwedonotsupporttheGSM-li

7、kedataconnectionyet.32CommandLineSyntaxWhenusingtheCDMADataModule,typingATcommandsenablesthedatamoduletoperformvariousactivities.TheATstandardisaline-orientedcommandlanguagethatistypedonacommandline.Eachcommandlineconsistsofthefollowing:òPrefix:ConsistsofthecharactersAT,whichprefacee