M120 AC Power Supply LEDs
The LED on each power supply faceplate indicates the status of the power supply (see Table 1, which applies to the AC and DC power supply). The power supply status is also reflected in two LEDs on the craft interface (see Power Supply LEDs on the Craft Interface). In addition, a power supply failure triggers the red alarm LED on the craft interface.
Table 1: M120 Power Supply LED
Color | State | Description |
|---|---|---|
Blue | Off | No power applied to power supply. |
Blinking |
| |
On steadily | Power supply is functioning normally. |
