Have this alert for a C9200L-48P-4X without any power supply inserted actaully in port A.
8 08:30:47.439: %PLATFORM_FEP-1-FRU_PS_INCOMPATIBLE: Switch 1: power supply
SW PID Status Sys Pwr PoE Pwr Watts
-- ------------------ ---------- --------------- ------- ------- -----
1A Unknown Unknown Disabled Bad Bad 235
1B PWR-C5-1KWAC xxxxxxxxx OK Good Good 1000
