code: @Override
  	public Description getDescriptionByIndex(final int objIndex, final int propIndex)
  		throws KNXException, InterruptedException
  	{
  		return createDesc(objIndex, pa.getDescription(objIndex, 0, propIndex));
  	}
docs: Gets the property description based on the property index.
  
  @param objIndex interface object index in the device
  @param propIndex property index in the object
  @return a property description object
  @throws KNXException on adapter errors while querying the description