xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch CLI Manual
312
45
PoE
DES-3828P supports Power over Ethernet (PoE) as defined by the IEEE 802.3af specification. Ports 1-24
supply 48 VDC power to PDs over Category 5 or Category 3 UTP Ethernet cables. DES-3828P follows
the standard PSE 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. 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.
DES-3828P includes the following PoE features:
•
The auto-discovery feature recognizes the connection of a PD 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.
•
The active circuit protection feature automatically disables the port if there is a short. Other ports
will remain active.
PDs receive power according to the following classification:
Class
Usage
Max power used by PD
0
Default
0.44 to 12.95W
1
Optional
0.44 to 3.84W
2
Optional
3.84 to 6.49W
3
Optional
6.49 to 12.95W
4 Not
allowed
Reserved
PSE provides power according to the following classification:
Class
Usage
Max power used by PD
0 Default
15.4W
1 Optional
4.0W
2 Optional
7.0W
3 Optional
15.4W
4 Reserved
15.4W
The PoE commands in the Command Line Interface (CLI) are listed (along with the appropriate
parameters) in the following table.
Command Parameters
