... 16MB850/900/1800/1900MHZ3V SIM card slotRS485 interface:PIN 1 for 485+BPIN 2 for 485 -ASIM Application ToolkitDouble tone multi-frequency ... *54*25mmWeight 100gAccessories: AC/DC adaptor, RS485 cable, antenna, 2 mounting plates, CD Specification for dataGPRS Class 10 max.85 ... .6kbps(downlinkPBCCH supportCoding schemes CS 1,2,3,4CSD up to 14.4kbpsUSSDNon-transparent modeTransparent mode ...