
Introduction 
Front Panel LEDs
The front panel has four LEDs to indicate the UPS operating mode.
| 1 | 2 | 
| 3 | 4 | 
Figure 1-3.  The front panel
| LED | LED Color | LED Meaning | 
| 
 | Green | Solid green means normal operation. | 
| 
 | 
 | Flashing green means Standby. | 
| 
 | Yellow | Solid yellow means the UPS is on Battery; | 
| 
 | 
 | flashing yellow means UPS is on Battery and | 
| 
 | 
 | Standby | 
| 
 | Yellow | Solid yellow means the UPS is on Bypass. | 
| 
 | Red | Solid red means current or impending problems. | 
