NETGEAR GS728TPv3 Hardware Installation Manual page 36

24-Port and 48-Port Gigabit Ethernet PoE+ Smart Switches with 4 SFP Ports
PoE troubleshooting suggestions
Here are some tips for correcting PoE problems that might occur:
• Make sure that the PoE Max LED is off. If the PoE Max 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. If the LED Mode button
is set to PoE Mode, for each powered device (PD) that is connected to the switch,
the associated port LED on the switch lights solid green. If the 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 6. 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 or
30W 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
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.
36 Hardware Installation Guide