This Gauge32 gives the finalized count of FEC errors corrected by the demodulator on the downstream signal during the previous 15-minute period. As a completed sample, it lets an engineer see whether the rate of FEC correction has been climbing across successive periods, which would indicate progressively worsening downstream SNR. For example, plotting several stuStatsPrevFecCorrect samples over time would reveal a slow upward trend well before the corresponding current-period alarm threshold is ever crossed.