I've got a PWR675-AC-RPS supplying backup power to a group of 3750G switches. Every week or so, I find it switched to standby (amber LEDs) though none of the switches has failed.
When I check the syslogs of the connected switches, they just start reporting:
%PLATFORM_ENV-1-PWR_RPS: Redundant power supply faulty or in standby mode
in the middle of the night... no other activity. What's up?