 Digital Serial Interface

Digital Serial Interface (DSI) is a protocol for the controlling of lighting in buildings (initially electrical ballasts).It was created in 1991 by Austrian company Tridonic and is based on Manchester-coded 8-bit protocol, data rate of 1200 baud, 1 start bit, 8 data bits (dimming value), 4 stop bits, and is the basis of the more sophisticated protocol Digital Addressable Lighting Interface (DALI).