Component identification  88 
Power supply bay numbering 
 
 
Power supply LED 
 
   
Power LED  Status 
Off 
No AC power to power supply units 
Green 
AC is present. Standby output is on, output is disabled. 
Green 
AC is present. Standby output is on, power supply DC output is on and 
OK. 
Off 
Power supply failure (includes overvoltage and overtemperature)