... /IP communication 2.support Wiegand 26,32,36 Embedded Ethernet 4-Door Access Control System Parameter* Size: L236mm x W 180mm H ... card reader.The controller can register many users, double door support 8100 users, 4-door controller support 32768 users; each user will have ... or TCP/IP communication to make networking. Embedded TCP/IP 4-Door Access Controller