4 Configuration
D-Link Smart Managed Switch User Manual
16
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Deny low priority port:
The port with the lower priority
will be shut down to allow the higher priority port to
power up.
Legacy Support
Specify to enable or disable detecting legacy PDs signal.
System Power Status
Total PoE Power
Budget
Displays the total PoE power budget of this switch.
Power Used
Displays the current used power of the switch.
Power Left
Displays the spare power of the switch.
The percentage of
system supplied
Displays the percentage of system power supplied of the
switch.
Table 4.4
Click
Apply
to make the configurations take effect.
System > PoE > PoE Configuration
The Switch supports Power over Ethernet (PoE) as defined by the IEEE specification. The maximum power
budget of the PoE ports is 30 W.
IEEE 802.3af defined that the PSE provides power according to the following classification:
Class Usage
Minimum Power Levels
Output at the PSE
Maximum Power Levels at
the PD
0
Default
15.4 W
0.44 to 12.95 W
1
Optional
4.0 W
0.44 to 3.84 W
2
Optional
7.0 W
3.84 to 6.49 W
3
Optional
15.4 W
6.49 to 12.95 W
4
Optional
Treat as Calss 0
Reserved for future use
IEEE 802.3at defined that the PSE provides power according to the following classification:
Class Usage
PD Classification Guaranteed Output
Power by PSE
Maximum Power
Levels at the PD
0
Default
Default, Type 1
15.4 W
0.44 to 12.95 W
1
Optional
Type 1
4.0 W
0.44 to 3.84 W
2
Optional
Type 1
7.0 W
3.84 to 6.49 W
3
Optional
Type 1
15.4 W
6.49 to 12.95 W
4
Optional
Type 2
30 W
12.95 to 25.5 W
The PoE port table displays the PoE status including, State, Priority, Legacy Support, Power Limit, Power
(W), Voltage (V), Current (mA), Classification, and Status. You can select
From Port
/
To Port
to control the
PoE functions of a port.
