
Stack Installation Guide for AT-2552XS  L2 Data Center Switch
Power/Fault LED The Power/Fault LED are shown in Figure 5.
Figure 5. Power/Fault LEDs
The Power/Fault LED is described in Table 4.
Table 4. Power/Fault LED Description
Location
Rear
Panel
LED | State | Description  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | Solid green  | Power is being supplied and the chassis is  | 
  | 
  | operating normally.  | 
  | 
  | 
  | 
  | Flashing  | System is booting up.  | 
POWER | green  | 
  | 
  | 
  | |
/FAULT | 
  | There is a problem with:  | 
  | Solid yellow  | - Failure of one or more power supply fans  | 
  | 
  | 
  | 
  | Flashing  | Only one PSU is powered up.  | 
  | yellow  | 
  | 
  | 
  | 
  | 
  | Off  | No power.  | 
  | 
  | 
  | 
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