Hardware Installation Manual  26  Document #: LTRT-28030 
3.3.4.4  Power Supply LED 
The Power Supply module, located on the chassis rear panel, provides a LED which 
indicates the operating status of the module, as described in the table below. 
Table  3-14: Power Supply Module LED Description 
Color  State  Description 
Green 
On  Connected to power source, chassis receiving power, and Power 
Supply module's fan operating normally. 
Amber 
Flashing  Connected to power source, but chassis not receiving power or 
fault detected in Power Supply module's fan. 
If the chassis houses two Power Supply modules, but only one of 
them is connected to the power source, the LED on the Power 
Supply module that is not connected flashes amber. 
-  Off  No power received from power source.