The electronics of LonGSp is composed of two main parts: "upper" electronics, that is situated near the instrument, and the "lower" electronics, put in the control room. ... There is also the main electronics box that contains the amplifiers and the A/D converters for the four output signals from the detector, the sequence memory which generates the proper timing clocks, and a logic for converting the 16-bit parallel data from the array to a serial format. ...