/ Q.PS Power Supplies
Why some of the Q.PS-AD2-2405F power supplies does have a green 'Vdc ok' LED and some does have a red 'Vdc ok' LED? (FAQ #101915)
The supplier of the power supply has changed the color of the LED installed in the power supply from red (old) to green (newer devices).
This change was done to have a better identification of the correct functionality of the device.
If the green LED is permanently switched on then this does mean that the device does work well.
The modification was done in March 2014.
Power supplies with fabrication date >= March 2014 does have a green LED.
Older devices do have a red LED.