iSMA-B-MIX38-IPAbout the product MIX series of I O modules with RS485 and IP (2x Ethernet) have been designed for building distributed control systems using MAC36, AAC20 or another controller. Each MIX module is equipped with the most commonly used types od I O in building automation. All I O modules haveBTL, CEandULcertificates. The modules with RS485 and IP (2x Ethernet) are factory equipped with the two most popular open communication protocols: Modbus (TCP IP)