code: public static RawFrame createPL132(byte[] data, int offset) throws KNXFormatException
  	{
  		if (data.length - offset == 2)
  			return new PL132Ack(data, offset);
  		return new PL132LData(data, offset);
  	}
docs: Creates a raw frame out of a byte array for the PL132 communication medium.
  <p>
  
  @param data byte array containing the PL132 raw frame structure
  @param offset start offset of frame structure in <code>data</code>, 0 &lt;=
  offset &lt; <code>data.length</code>
  @return the created PL132 raw frame
  @throws KNXFormatException on no valid frame structure