Led Patterns For Poe Troubleshooting - HP OfficeConnect 1820 8G Installation And Getting Started Manual

Tip Problem
➌ The network port for
which the Link LED is
blinking has
experienced a self test
or initialization failure.
The network connection
➍
is not working properly.

LED Patterns for PoE Troubleshooting

Press the LED Mode button to put the switch into PoE mode and the port Mode LEDs will show which ports
are experiencing the problem. The following tables identify the specific problems that are shown by the LEDs.
Procedure
1. Check in the table for the LED pattern you see on your switch.
2. Refer to the corresponding diagnostic tip.
LED Pattern Indicating Problems
Fault
Off
Fast Blinking
Diagnostic Tips:
Solution
Try power cycling the switch. If the fault indication reoccurs, the switch
port may have failed. To confirm, try a different port that appears to be
good. Call your Hewlett Packard Enterprise-authorized network reseller,
or use the electronic support services from Hewlett Packard Enterprise to
get assistance.
To verify that the port has failed, try removing and reinstalling the SFP
without having to power off the switch. If the port fault indication reoccurs,
you will have to replace the SFP.
Try the following procedures:
• For the indicated port, verify that both ends of the cabling, at the switch
and the connected device, are secure.
• Verify the connected device and switch are both powered on and
operating correctly.
• Verify that the connected devices comply with the appropriate IEEE
802.3 standard, including transmission of the Link signal.
• If the other procedures do not resolve the problem, try using a different
port or a different cable.
Port Link
Fast Blinking Green
Fast Blinking Green
Port Mode(PoE)
Fast Blinking Green
Fast Blinking Green
LED Patterns for PoE Troubleshooting
Diagnostic Tips
(see table below)
➊
➋
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