... 4.Support professional access control, and one user, multi-users combination door open, entry control for different time zones and holidays.5.Support ... RS485, TCP/IP(optional), USB(optional)Standard access control interfaceWEIGAND34,dry contact standard access output controlOpen door delay 1~255sLCD 128× ... TCP/IP port. MX602 refers to USB port. MX461 Fingerprint access control and time attendance