Features:●Providing850/900/1800and1900GSMconnectivity?！馭impletoinstall/easytomaintain●AllowPINcodeenteringandreciprocalphone-cardlock●Provideoptimizedcircuitdirectlyconnectingtheexchangedevice●forextensions ●LCDwithbackscreen●Polarityreversalsignalformetering ●3.5dBigainantenna●CompatibletoPABX ●SuitableforcallterminationofISP●Incomingcallreminder,timedisplay Specifications:●Airinterfacestandard:GSM850/900/1800/1900MHzPhase2+●Frequencyranges: ○GSM900: ●Transmit:890~915MHz; ●Receive:935~960MHz ○GSM1800: ●Transmit:1710~1785MHz; ●Receive:1805~1880MHz●Channelspace:200KHz ●Sensitivity:-104dB●Peakpowerconsumption:2W●Operatingenvironmentrequirements: ○Temperature:0 C-+40 C ○Relativehumidity:45%-90%●Connectors:SMAantennaconnector(TNCoptional)●Atmosphericpressure:86~106Pka●Powerconsumption:static 25mA,emission 500mA●Antenna:Gain:3.5dB(alldirectional)12dB(Certain/selection)●Powersupply:DC12V(optional