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Table 25: Power Supply LEDs on EX8200 Switches
DescriptionStateLED
Indicatesone of the following:
•
Powersupplyis disconnected from AC powerfeed.
•
ACpowerinput voltageis not within normal
operating range.
•
No ACpowerinput.
UnlitINPUTOK
•
ACpowerinputishigh-voltageline(200–240VAC).Green
•
ACpowerinput is low-voltageline (100–120VAC).Yellow
NOTE: This LED state
appliesonlyto2000WAC
power supplies.
Indicatesone of the following:
•
DC output voltage is not within normal operating
range.
•
Powersupplyis not supplying DC power correctly.
UnlitOUTPUTOK
•
DC power output is within normal operating range.Green
•
Powersupplyhas been disabled internally bythe
system.
Yellow
•
Powersupplyis functioning normally.UnlitFAIL
•
On steadily—Power supplyhasfailed.
•
Blinking—Demandfor output power exceedsthe
supply.
Yellow
NOTE: Ifthe INPUTOK LED and the OUTPUTOK LED are unlit, the ACpowercordis not
installed properly or the power supply has failed.
If the INPUT OK LEDis lit and the OUTPUT OK LED is unlit, the AC power supply is not
installed properly or the power supply has an internal failure.
If the FAIL LED is lit, the powersupply has failed and must be replaced. If the FAIL LED
is blinking, add a power supply to balance the power demand and supply.
Related Topics AC Power Specifications for EX8200 Switches on page 109•
• Power Requirements for EX8208 Switch Components on page 111
• Power Requirements for EX8216 Switch Components
• AC Power Cord Specifications for an EX8200 Switch on page 112
• Connecting AC Power to an EX8200 Switch on page 173
47Copyright ©2010,Juniper Networks,Inc.
Chapter2:ComponentDescriptions