Dell 
PowerEdge T310 Technical Guide      17 
   
4.5  Power Supply Indicators 
 
 
 
 
Figure 4.  Power Supply Indicators for Redundant PSU Only 
Not lit—AC power is not connected. 
Green—In standby mode, a green light indicates that a valid AC source is connected to the power 
supply and that the power supply is operational. When the system is on, a green light also indicates 
that the power supply is providing DC power to the system. 
 Amber— Indicates a problem with the power supply. 
 
4.6  NIC Indicators 
 
 
Figure 5.  NIC Indicators