... 1.10 years experience for ic card reader 2.ISO14443TYPE A/MIFARE for smart card reader 3 Interface: LD/RS232/TTL ... can be do Communication is set incorrectly, the card machine did not respond, check the communication settings 4, ... system. TypeGHC 815InterfaceRS232, Virtual USB Appearancesmall, beautiful, card easy to placeDevice size103.5mm*76.5mm*56mmDevice ... beijing GHC contact smart ic card reader