Allied Telesis x900 Series Switch and SwitchBlade x908 - Manual (Page 30)

Installation and Safety Guide
29
PWR05
DC
LEDs
The following table describes LEDs on the PWR05 DC power supply unit for
the SwitchBlade x908.
LED State Description
IN
Green DC input voltage is within 40 VDC to 60 VDC.
Off DC input voltage is outside the acceptable range.
OUT
Green DC output voltage is within 12VDC +/- 10%.
Off DC output voltage is outside the acceptable range, or
the Standby switch is Off. If a fault occurs then the
FAULT LED will display and the OUT LED will be Off.
FAULT
Red A fault has occurred. There is either a fan failure, or the
temperature has exceeded its limit of 70º C (158º F).
Off No fault conditions detected.