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I/O Drawer and Power Supply LED Status
The following table summarizes the possible conditions of I/O drawer and power supply
LEDs:
Status of LED
Off
On, blinking green
On, steady green
28
Service Guide
Operator Panel LED
Right Power Supply
LED
No power connected
No power connected
or system power
connected, not turned
on, power supply
detects NO faults
System power
System power
connected, not turned
connected, not turned
on
on, power supply
detected fault
System power
System power
connected and turned
connected and turned
on
on
Left Power Supply
LED
No power connected
or system power
connected, not turned
on, power supply
detects NO faults
System power
connected, not turned
on, power supply
detected fault
System power
connected and turned
on
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