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ERP2U Power Supply Design Guide, V2.31
- 34 -
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 35: LED Indicators for conditions of the LED(s).
Table 34: 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
voltage, over temperature)
ON OFF
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.