Interpret the PA-7500 Series Firewall LEDs
    Read the LED definitions of the PA-7500 Series firewall power supplies and fan
        assemblies.
    The AC and DC power supplies have a FAIL and an OK LED.
  
    
  
| AC Power Supply | 
|---|
    
| Solid Green | Power output is on. | 
| Blinking Green (0.5Hz) | Standby mode. AC power is present but only at 12VSB
                            (Volts Standby). | 
| Solid Yellow | Power supply critical failure. | 
| Off | No AC power or AC power cord is unplugged. | 
 
  
 
  
  
    
  
| DC Power Supply | 
|---|
    
| Solid Green | Power output is on. | 
| Blinking Green (0.5Hz) | Standby mode. DC power is present but only at 12VSB
                            (Volts Standby). | 
| Solid Yellow | Power supply critical failure. | 
| Off | No DC power. | 
 
  
 
  
  
    
  
| Fan Assembly | 
|---|
    
| Green | The fan trays and all fans are operating normally. | 
|