1.RS232, RS485, TCP/IP, USB-Client communication. 2. WIFI,GPRS,ID Card, Mifare Card, HID Card optional. System ... 240· I/O Interface: RS232, RS485, TCP/IP, USB-Client · USB Memory Slot: USB-host · Standard function: Photo-ID,webserver, work code ... ,SMS,Schedule Bell,Daylight saving, T9 input,function keys· Options: WIFI ...