... with various systems.. ARM9 platform support enterprise VPN..GPRS/CDMA /WIFI access control. Alarm clock function for ... CDMA/WIFIAlarm clockEmbedded alarm clockExternal functionsConnect Electronic lock(Access Control), Electronic bellCommunicationsRS232 or RS485, TCP/IP, ... time zones, 5 groups and 10 unlock combinationsShowTime, ID number, NameLanguageEnglish, French, Spanish, Czech, Indonesian, ...