... type (L) is supplied with LCD panel.Main module:12\22\24 points: Extension module: 22 points; It is flexible ... 7 I/O extension modules, 1 voice module, and 1 SMS module; Program memory capacity: 320 FBDs, EEPROM; ... 20mAPower Failure ProtectionYesSimulate MonitoringYesCommunication InterfaceTTL interface; besides, communication module supports 2 RS485 and 1 RS232 interfacesBaud Rate9600bpsCommunication ...