Poe Configuration - D-Link xStack DES-3800 Series User Manual

PoE Configuration

The DES-3828P supports Power over Ethernet (PoE) as defined by the IEEE 802.3af specification. Ports 1-24 can supply 48 VDC
power to Power Devices (PDs) over Category 5 or Category 3 UTP Ethernet cables. DES-3828P follows the standard PSE (Power
Source over Ethernet) pinout Alternative A, whereby power is sent out over pins 1, 2, 3 and 6. DES-3828P works with all D-Link
802.3af capable devices.
DES-3828P includes the following PoE features:
•
Auto-discovery recognizes the connection of a PD (Power Device) and automatically sends power to it.
•
The Auto-disable feature will occur under two conditions: first, if the total power consumption exceeds the system power
limit; and second, if the per port power consumption exceeds the per port power limit.
•
Active circuit protection automatically disables the port if there is a short. Other ports will remain active.
PDs receive power according to the following classification:
Class Max power used by PD
0 0.44 to 12.95W
1 0.44 to 3.84W
2 3.84 to 6.49W
3 6.49 to 12.95W
To configure the PoE features on the DES-3828P, click Administration > PoE Configuration. The PoE System window is used
to assign a power limit and power disconnect method for the whole PoE system. To configure the Power Limit for the PoE
system, enter a value between 37W and 370W in the Power Limit field. The default setting is 370W. When the total consumed
power exceeds the power limit, the PoE controller (located in the PSE) disconnects the power to prevent overloading the power
supply.
To configure PoE for the Switch, click Administration > PoE Configuration, which will reveal the following window for the
user to configure:
xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch
Figure 6- 6. PoE Configuration window
PSE provides power according to the following classification:
Class Max power used by PSE
0 15.4W
1 4.0W
2 7.0W
3 15.4W
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