北京九州恒信技術(shù)發(fā)展有限公司是專業(yè)的通訊模塊和定位模塊的特約分銷商和代理商。GPS模塊主營(yíng)品牌有GO-TOP、U-BLOX、HOLUX等；還代理分銷SIMCOM公司的GPRS模塊，包括SIM300、SIM300C、SIM300D、SIM900全系列模塊等。廣泛應(yīng)用于無(wú)線公話、商話、數(shù)據(jù)采集器、GSM汽車防盜、電力抄表、水務(wù)、油田、POS機(jī)、航運(yùn)等行業(yè)中。Generalfeatures Quad-Band850/900/1800/1900MHz GPRSmulti-slotclass10/8 GPRSmobilestationclassB ComplianttoGSMphase2/2+ Class4(2W@850/900MHz) Class1(1W@1800/1900MHz) Dimensions:24*24*3mm Weight:3.4g ControlviaATcommands(GSM07.07,07.05and SIMCOMenhancedATCommands) SIMapplicationtoolkit Supplyvoltagerange3.4...4.5V Lowpowerconsumption NormalOperationtemperature:-30 Cto+80 CSpecificationsforFax Group3,class1SpecificationsforData GPRSclass10:max.85.6kbps(downlink) PBCCHsupport CodingschemesCS1,2,3,4 CSDupto14.4kbps USSD Nontransparentmode PPP-stackSpecificationsforSMSviaGSM/GPRS PointtopointMOandMT SMScellbroadcast TextandPDUmodeDrivers MUXDriverSpecificationsforVoice Tricodec Halfrate(HR) Fullrate(FR) EnhancedFullrate(EFR) Hands-freeoperation（Echosuppression） AMR-Halfrate(HR)-Fullrate(FR)Interfaces InterfacetoexternalSIM3V/1.8V analogaudiointerface RTCbackup SPIinterface Serialinterface Antennapad I2C GPIO PWM ADCCompatibility ATcellularcommandinterfaceApprovals（ongoing） CE FCC ROHS PTCRB GCF AT T IC ICASA TA