M320 Craft Interface Power Supply LEDs
Each power supply has two LEDs on the craft interface that indicate its status. The LEDs, labeled 0 through 3, are located in the middle of the craft interface under the POWER label. Table 1 describes the functions of the power supply LEDs.
Table 1: Power Supply LEDs on the Craft Interface
Label |
Color |
State |
Description |
|---|---|---|---|
FAIL |
Red |
On steadily |
Power supply has failed. |
OK |
Green |
On steadily |
Power supply is functioning normally. |

