Component
identification 14
LED Appearance
Description
Amber
Standby mode with OTP range
12V fault (include OVP, UVP, OCP, SCP and OTP)
Fan lock 15 sec including stand-by mode
S550E004L
LED Appearance
Description
Off
No AC power to all power supplies
Green
Output on, normal
Green blink (1Hz)
AC presents/ only +12VSB on (PS off) or PSU in smart redundant
state/ off line mode
Green blink (2Hz)
Power supply FW updating
Amber
AC cord unplugged or AC power lost; with a second power supply
in parallel still with AC input power
Power supply critical event causing a shutdown; failure, OCP, SC,
OVP, fan fail, OTP
Amber blink (1Hz)
Power supply warning events where the power supply continues to
operate; high temp, high power, high current, slow fan