A signal calibration apparatus of a charge pump minimizes a current from the charge pump. The valve system includes a valve member having a tubular outlet portion and supported for axial movement within a valve body having an inlet connected to the gas source. The data block has a sequence number higher than a sequence number of another data block that was first expected to be received. A fuse including first and second spaced apart and extending blade portions engage, respectively, with the first and second female terminals through openings defined in the housing.