The Red5-MODULE-SMI provides connectivity between your BACnet building automation system and Standard Motor Interface (SMI) motors installed on the same system. The SMI digital interface protocol is designed to automate roller shutters and sun protection systems. SMI commands, queries and status feedback are transmitted and received as telegrams between controller and motors. The Red5-MODULE-SMI module works with both SMI mains voltage and SMI low voltage motors, but mains voltage and low voltage motors must not be mixed on a single SMI network.