The GX3748 is a user configurable, FPGA-based, 3U PXI card which features 48 voltage comparator channels.  The daughter board interfaces to the GX3700 FPGA baseboard which employs the Altera Stratix  III FPGA.  Each input channel can accept input voltage signals from 0 to 50 volts, with programmable threshold levels. Three of the 48 channels are supported by the board’s timestamp event feature.