D-Link xStack DGS-3426P User Manual - Poe Configuration
xStack DGS-3400 Series Layer 2 Gigabit Ethernet Managed Switch
PoE Configuration
The DGS-3426P 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. The DGS-3426P follows the standard PSE
(Power Source over Ethernet) pinout Alternative A, whereby power is sent out over pins 1, 2, 3 and 6. The DGS-3426P works with
all D-Link 802.3af capable devices. The Switch also works in PoE mode with all non-802.3af capable D-Link AP, IP Cam and IP
phone equipment via DWL-P50.
The DGS-3426P includes the following PoE features:
94
•
•
•
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 DGS-3426P, 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.
PoE System Settings
To configure PoE for the Switch, click Administration > PoE > PoE System Settings, which will reveal the following window
for the user to configure:
Figure 6- 69. PoE System Settings and Information window
The previous window contains the following fields to configure for PoE:
Parameter Description
Unit
Choose the switch in the switch stack for which to configure the PoE settings.
Users should note that not all switches in the xStack DGS-3400 series support PoE yet, when
they are configured in a stack, the Primary Master switch will display the PoE settings to be
configured for the stack, whether or not the Switch is a PoE supported device. However, only
PoE supported switches have the PoE capability in the switch stack.
PSE provides power according to the following classification:
Class
Max power supplied by PSE
0 15.4W
1 4.0W
2 7.0W
3 15.4W