Configure System Information
81
M4100 Series Managed Switch
7. Select System > PoE > Advanced > PoE Port Configuration.
8. For Admin Mode, select Enable or Disable to determine the ability of the port to deliver
power.
9. Use Port Priority to determine which ports can deliver power when the total power
delivered by the system crosses a specific threshold.
If the switch is not able to supply power to all connected devices, priority is used to
determine which ports can supply power
. The lowest numbered port that is one of the
ports of the same priority has a higher priority. Select the priority order from the following
list:
• Low. Low priority
• Medium. Medium priority
• High. High priority
• Critical. Critical priority
10. Select the High Power Mode from the following options:
• Disabled indicates that a port is powered in the IEEE 802.3af mode.
• Legacy indicates that a port is powered using high-inrush current, used by legacy
PD's whose power requirements are more than 15W from power-up.
• Pre-802.3at indicates a port is powered in the IEEE 802.3af mode initially and then
switched to the high-power IEEE 802.3at mode before 75 msec.
This mode must be
selected if the PD is NOT performing Layer 2 Classification or the PSE is performing
2-Event Layer 1 Classification.
• 802.3at indicates that a port is powered in the IEEE 802.3at mode. For example, if the
class detected by PSE is not class4, then the PSE port does not power up the PD.
11. The Power Limit T
ype describes or controls the maximum power that a port can deliver.
Select the type from the following list:
• Class.
The port power limit is equal to the class of the PD attached.
• User.
The port power limit is equal to the value specified by Power Limit.
• None.
The port draws up to class 0 maximum power in the case of low power mode
and up to class 4 maximum power in the case of high power mode.
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