Since September 2018, the new DALI converter R091 is supplied rather than the older type R090. Apart from full multimaster support (see details here), the R091 also contains Modbus registers for reading of events from DALI input devices (such as switches, light sensors, etc.). The converter was tested also with ballasts which do not fully comply with the DALI standard. More compatibility is provided thanks to optional baudrate correction and redesigned hardware with lower DALI low-level voltage. Enhancement was brought also to diagnostics functions (address collision detection) and addressing (e.g. unaddressing of all ballasts). Please involve only R091 in your projects and orders, eventual orders of R090 will be completed with R091 automatically. The R091 is fully backward compatible with R090.