A UAFX Station is an IA-station (see 6.4) supporting the UAFX communication and application layer (see Figure 1). The UAFX communication and application layer is a logical component acting as a source of and/or destination for link layer data traffic. Thus, each UAFX Station incorporates at least one End Station Component where the UAFX communication and application layer can be located. Figure 14 shows that the UAFX communication and application layer can reside in one or multiple End Station Components.