zl Power Supply Shelf Installation and Getting Started Guide 2009-06

3-2
Troubleshooting
Diagnosing with the LEDs
Troubleshooting
Diagnosing with the LEDs
Table 3-1 shows LED patterns on the Power Supply Shelf that indicate problem
conditions.
1. Check in the table for the LED pattern that you see on your unit.
2. Refer to the corresponding diagnostic tip on the next few pages.
Table 3-1. LED Error Indicators
LED Pattern Indicating Problems
Diagnostic
Tips
Power Fault
Device
Connected
Power
Status
Off with
power cord
plugged in
11 1
➊
On Prolonged On
11
➋
On Flashing
2
11
➌
On Flashing
2
Flashing
2
➍
On Off Off with cable
connected
Off
➎
On Off On with cable
connected
Off
3
(EPS port only)
➏
1
This LED is not important for the diagnosis.
2
The flashing behavior is an on/off cycle once every 1.6 seconds,
approximately,
3
Check the log file of the connected switch for a message on the fault.