numeric keyboard

The detail information : Appearance 2 IC card reader/writer SAM card readers 1 magnetic card reader 14- key keyboard 2 lines LCD background light display Technology index Data memory128k, RAM can expand to 512k Program memory256k flash memory, can expand to 512k Magnetic strip card readerISO –7811/12 standard, 2nd and 3rd track read cards Smart card reader/writerDouble IC card readers for both memory card and CPU card,1-4 SAM card reader Pin pad14 keys Communication interfaceRS232 port or USB Spare battery 3v li-ion PowerDC5V, from ps/2 port Dimension163 ×93 ×59mm Weight550g Operation temperature-10°C-60°C Relative humidity20%-98% no freeze CPUARM7,32 bite,33MHz FLASH2MB SDRAM8MB LCD display122 x 32 lattice,EL background light KEYBOARD14 keys press, including10 number keys and 3 function keys and a radix point. MAGNET CARD READERsupport 1/2 or 2/3 track reading and double direction carding feeding,accords with ISO7811/12 IC card reader2 user card reader,support IC card with T=0/T=1 2 protocols .accord with ISO7816 card standard, support synchronized I²C bus IC card baseno less than 200000 times PSAM card baseISO7816 standard,communication protocol:a synchronized T=0/T=1