The Free On-line Dictionary of Computing (30 December 2018):

IrDA Data

    (IrDA-D) Infrared standards from IrDA.  IrDA
   Data is designed for data transfer over a distance of up to 1
   metre, acting as a point-to-point cable replacement.  Several
   IrDA Data standards exist, supporting data rates from 9600 bps
   - 50 Mbps, namely SIR, FIR, and VFIR.

   See also IrDA Control, AIR.

   (1999-10-14)