Poe Troubleshooting Suggestions - NETGEAR GSM4248PX Hardware Installation Manual

PoE troubleshooting suggestions

Here are some tips for correcting PoE problems that might occur:
• Make sure that the system POE LED is off. If the system POE LED is solid yellow,
disconnect one or more PoE devices to prevent PoE oversubscription. Start by
disconnecting the device from the highest-numbered port.
• Make sure that the Ethernet cables are plugged in correctly. For each powered
device (PD) that is connected to the switch, the right port LED on the switch lights
solid blue. If the right port LED lights solid yellow, a PoE fault occurred and PoE
halted because of one of the conditions that are listed in the following table.
Table 20. PoE fault conditions and possible solutions
PoE Fault Condition
A PoE-related short circuit occurred on the port.
The PoE power demand of the PD exceeded the maximum level that the
switch permits. The maximum level is 15.4W for a PoE connection, 30W
for a PoE+ connection, and 90W for a PoE++ connection.
The PoE current on the port exceeded the classification limit of the PD.
The PoE voltage of the port is outside the range that the switch permits.
Troubleshooting
AV Line of Fully Managed Switches M4250 Series
Possible Solution
The problem is most likely with the
attached PD. Check the condition
of the PD or restart the PD by
disconnecting and reconnecting
the PD.
Restart the switch to see if the
condition resolves itself.
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