3-3
Troubleshooting
Diagnosing with the LEDs
Diagnosing with the LEDs
Table 3-1 shows LED patterns on the switch that indicate problem conditions
for general switch operation troubleshooting.
LED patterns for General Switch Troubleshooting
1. Check in the table for the LED pattern you see on your switch.
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 Port Link/Act LED
Off with power cord plugged in See Note 1
➊
On Off with cable connected
➋
1
This LED is not important for the diagnosis.
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