Labels:text | screenshot | rectangle | font OCR: THE IrDA PROTOCOL STACK Misuple Printing vendors' System software Services Systern Transport Protoco standard bik tanagertent Protocol ATLAP Link Access Protocol ROK.SIR Serial InfraRed Source: MDA Figure 2. The IrDA protocol stack consists of three core layers: IrDA SIR Physical layer, IrLAP, and [rLMP. Data may be passed to the IrLMP directly from applications via an applications programming interface (API) or through the stack's optional trans- port protocol layer (IrTP).