... : DC9V + / -5%, ripple <50 MV - Handset 1200 Mah/7.2V lithium batteriesCurrent work Phone start-up current 30 mA ... 3 (option), ISO 7812-2,Contactless card ISO14443A/B,Mifare 1,S50,S70,etcIC Card ReaderCan read and write an agreement with ... modemcommunicationCable MODEM, GPRS, CDMA, TCP / IP (Internet POS)InterfaceMini-USB,RS232Security ModuleEmploys DES and 3DES algorithm, DUKPT Key Management for ...