... 1900MHZ3V SIM card slotSIM Application ToolkitRS485 interface:PIN 1 for 485+BPIN 2 for 485 -ADouble ... with ETSI GSM Phase2+ standardOutput Power:Class 4(2W @ 850/900MHz)Class 1(1W @ 1800/1900MHz)I Input ... Specification for dataGPRS Class 10 max.85.6kbps(downlinkPBCCH supportCoding schemes CS 1,2,3,4CSD up ... and PDU mode Specification for FaxGroup 3, class 1,2 RS485 GSM/GPRS Modem Based on SIMCOM ...