The present invention is a device including a wavelength division multiplexer for multiplexing a plurality of optical carrier signals on an optical fiber. A base concatenates information symbols with a preamble corresponding to a destination remote unit. The length, position, and transition values for the respective segments can be recorded and stored. A first resist is formed on the conductive film, having openings to expose parts of the conductive film. This medical kit may include a catheter having a channel and a piercing tip, the piercing tip in fluid communication with a pressure source and slidably placed in the channel. Samples for each timing location are separately accumulated, and accumulated values are examined to determine the probability of the bit stream being high or low at each timing location.