Diagnosing With The Leds - HP ProCurve 2224 Installation Manual

Diagnosing with the LEDs

Table 3-1 shows LED patterns on the switch that indicate problem conditions.
1.
2.
Table 3-1.
Diagnostic Tips:
Tip
Number Problem
¯
The switch is not
plugged into an
active AC power
source, or the
switch's power
supply may have
failed.
Check in the table for the LED pattern that you see on your switch.
Refer to the corresponding diagnostic tip on the next few pages.
LED Error Indicators
LED Pattern Indicating Problems
Power Fault
Off with power *
cord plugged in
On Prolonged
On
†
On Blinking
On Off
†
On Blinking
* This LED is not important for the diagnosis.
†
The blinking behavior is an on/off cycle once every 1.6 seconds, approximately.
1. Verify that the power cord is plugged into an active power source and to the
switch. Make sure these connections are snug.
2. Try power cycling the switch by unplugging and plugging in the power.
3. If the Power LED is still not on, verify that the AC power source works by plugging
another device into the outlet. Or try plugging the switch into a different outlet or
try a different power cord.
If the power source and power cord are OK and this condition persists, the switch
power supply may have failed. Call your HP-authorized LAN dealer, or use the
electronic support services from HP to get assistance. See the Customer Support/
Warranty booklet for more information.
Port Link Port 1 Indicator
LED
* *
* *
* *
Off with cable *
connected
†
Blinking Off
(for port 1)
Solution
Troubleshooting
Diagnosing with the LEDs
Diagnostic Tips
°
±
²
³
3-3