User capacity: 1500 Transaction capacity: 50000 Access control: 50 time zone, 5 grouping, 10 combination, holiday management Communicational: TCP/IP or RS232 and RS485 Temperature operating: 0 ?C ~ 45 ?C Humidity operating: 20~ 80 percents Language: simplified Chinese, traditional Chinese, English, other languages Standard: wire doorbell, wiegand out, wiegand in Optional: ID/HID/Mifare card, Web server, USB host, short message, work code, RIS, antipass-back