Unstable or not working IRT communication in larger configurations

If the controller is configured for a large number of IRT connections, unstable IRT connections are oberserved in some conditions including:

• Commisioning of a IRT network configuration were all device are factory-reset and the controller has to assign name of station. Device which are assigned the name first (thus close to the controller) won't fully establish connection before device deeper in the line are fully connected
• When an IRT device further away from controller losses its connection, other devices inbetween this device an the controller may also drop the connection

The problem is caused by the controller sending IRT frames to late, thus the frames miss the "red" receive window at the devices.

The problem occurs when more than a certain amount of devices (around ~ 40) are configured for IRT operation.

The controller shall be sending the frames at configured timepoints and the connection should be stable.