Intel ERP2U manual LED Indicators, Power Supply LEDs

SSI

ERP2U Power Supply Design Guide, V1.0

8.4LED Indicators

STATUS

Required

There shall be a single bi-color LED OR two LEDs, one AMBER and one GREEN, on each hot swap power module to indicate power supply status. When AC is applied to the power supply and standby voltages are available the GREEN LED shall BLINK. The GREEN LED shall turn ON to indicate that all the power outputs are available. The AMBER LED shall turn ON to indicate that the power supply has failed, shutdown due to over current, or shutdown due to over temperature. Refer to Table 28: LED Indicators for conditions of the LED(s).

Table 28:	LED Indicators
POWER SUPPLY CONDITION	Power Supply LED(s)
	AMBER	GREEN
No AC power to all PSU	OFF	OFF
No AC power to this PSU only	AMBER	OFF
AC present / Only Standby Outputs On	OFF	BLINK
Power supply DC outputs ON and OK	OFF	ON
Power supply failure (includes over	ON	OFF
voltage, over temperature)
Current limit	ON	OFF

The LED(s) shall be visible on the power supply’s exterior face. The LED location shall meet ESD requirements. LED shall be securely mounted in such a way that incidental pressure on the LED shall not cause it to become displaced.

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