... low cost network system, support WIFI, GPRS and 3G flexible for wireless communication on any occasion. With embedded Linux or ... interface- TCP/IP, RS232/RS485, USB, Wiegand In/Out and wireless LAN WIFI, GPRS, 3G- Flexible connectors Wiegand 26-58 bits ... (Red, Green)USB memory slot 2 USB (Host)Communication Interface TCP/IP(RJ45), RS232 / RS485, USB and wireless WIFI, GPRS, 3G Wiegand Interface 2 ...