TYAN FT48T-B7105 Service Engineer's Manual page 31

Power LED Definitions
Power Supply condition
No AC power to all power supplies
Power supply critical event causing a shutdown;
failure, OCP, OVP, Fan Fail, OTP, UVP
Power supply warning events where the power
supply continues to opeate; high temp (inlet
temperature>51 deg (PMBus reading), or hot spot
temperature >95 deg (PMBus reading), high power,
high current, slow fan (Fan warning +/- 20% RPM)
AC present Only 12VSB on (PS off) or PS in Smart
Redundant state
Output ON and OK
AC cord unplugged or AC power lost with a second
power supply in parallel still with AC input power
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Bicolor
Green LED
OFF
OFF
OFF
Green Blinking
@1Hz
Green Solid ON
OFF
Amber LED
OFF
Amber Solid ON
Amber Blinking
@1Hz
OFF
OFF
Amber Solid ON