The Summit 750 W AC power supply is used in the EPS-C2 external power system (see EPS-C2 Redundant Power System). Each installed Summit 750 W AC power supply can provide up to 380 watts of PoE power budget.
The Summit 750 W AC power supply has the status LEDs listed in the following table.
| Label and Color | State | Meaning |
|---|---|---|
| AC OK Green |
Off | No AC input |
| On | AC input is good. | |
| DC OK Green |
Off | Both DC outputs (55 V and 12 V) are bad or not enabled. |
|
Blinking |
One output is enabled and good; the second output is bad or not enabled. | |
| On | Both the 55 V and 12 V outputs are enabled and good. | |
| ALM Red |
Off | No fault condition exists. |
| Blinking | Power supply alert:
power supply is likely to fail because of a developing fault, such
as abnormal thermal conditions or poor fan performance. or One output (55 V or 12 V) is bad. |
|
| On | Both outputs (55 V and 12 V)
are bad. Power supply is receiving 3.3 VSB from the system. (AC OK and DC OK are off.) Thermal shutdown, fan failure, or any fault condition when both 55 V and 12 V are turned OFF. |