产品型号：VT310 接线方法： 主要功能 GSM/SMS通讯或GPRSTCP/UDP连接 GPS卫星实时定位 同时支持:单点定位和连续跟踪 报警和远程监控 通过SMS或GPRS定位 实时定位跟踪 SOS紧急求救按钮 超速报警 电子栅栏 产品规格 Dimensions 11.4x8.0x2.0(cm) Weight 130g GSMmodule GSM900/1800/1900MhzorGSM850/900/1800/1900Mhz GPSChipset latestGPSSIRF-StarIIIchipset Powersupply +9V-+40V Powerconsumption Activemode(peak) 1.0A Activemode(avg.) 300mA Idlemode 50mA Sleepmode 5mA Operatingtemperature -20℃to+60℃ Storagetemperature -20℃to+70℃ Humidity Upto75%non-condensing ExternalAntenna Connectedviathe50Ωcoaxconnector ExternalSIMcard ConnectedviaSIMcardconnector SIMcardtype 3V Transmitpower Class4(2W)forE-GSM900and850 Class1(1W)forDSC1800 Class1(1W)forPCS1900 Sensitivity -104dBmminimumforE-GSM900and850 -102dBmminimumforDCS1800 -102dBmminimumforPCS1900 Speechcodec Tripleratecodec: Halfrate–ETS06.20 Fullrate–ETS06.10 Enhancefullrate–ETS06.50/06.06/06.08 GPRS Multi-slotclass8(4Rx,1Tx,5slotmax.) Supportall4codingschemes(CS-1,CS-2,CS3andCS-4) Maximumdownloadspeedis85.6kbps Maximumuploadspeedis21.4kbps Circuit-switcheddatarate 14.4kbps Interface Fullduplex3VCMOS-levelserialinterfaceforATcommandsprotocol