medium infrared (MIR)
For the IrDA Physical Layer( IrPHY) there are different encoders for different data rates, ranges, modulations and wavelengths.
Medium Infrared (MIR) is one such transmission medium, Fast Infrared( FIR), Very Fast Infrared( VFIR), Ultra Fast Infrared ( UFIR) and Giga Infrared( GIR) others.
Medium Infrared has moderate data rates between 0. 576 Mbit/s and 1.152 Mbit/s. It uses Return to Zero Inverted( RZ-I) coding and bit stuffing. Cyclic block checking is performed with 16 bits. Medium Infrared is thus above Serial Infrared ( SIR) in terms of data transfer rate.