MAC mode is a fully IEEE 802.15.4 compliant setup of the Connect MAC layer. The Connect network layer is not enabled, which renderssome plugins unusable in this mode (because some plugins require endpoints). The API is more complex compared to Directmode and requires some knowledge of the IEEE 802.15.4 standard.To make it fully IEEE 802.15.4 compliant, make sure to set up a 15.4-compliant radio configuration.